Answer:
YlThe higher the grader the more hours they can work.
Step-by-step explanation:
We can see that the higher the grader the more hours they can work ; which could mean less academic work if the work defined is that with which to earn money but if the work defined is academic it means more hours of academic work
Select the statement that is true. Group of answer choices There are integers s and t such that 2=102⋅s+72⋅t . here are integers s and t such that 8=102⋅s+72⋅t . There are integers s and t such that 1=102⋅s+72⋅t . There are integers s and t such that 6=102⋅s+72⋅t .
Answer:
Step-by-step explanation: true
What can you conclude from a box plot where the length of the left box and whisker is the same as the length of the right box and whisker?
Answer/Step-by-step explanation:
The length of the boxes and whiskers of a box plot tells us more about the spread the data being represented is and as well as the shape of the spread.
Invariably, if the length of the left box and left whiskers is of the same length as the right box and right whiskers, this implies that the distribution of the data point is close to being symmetric, or approximately symmetrical.
A circle is centered on point BBB. Points AAA, CCC and DDD lie on its circumference.
If \blue{\angle ABC}∠ABCstart color #6495ed, angle, A, B, C, end color #6495ed measures 124^\circ124
∘
124, degrees, what does \orange{\angle ADC}∠ADCstart color #ffa500, angle, A, D, C, end color #ffa500 measure?
Answer:
[tex]\angle ADC=62^\circ[/tex]
Step-by-step explanation:
Given the circle centered on point B with points A, C and D on its circumference.
[tex]\angle ABC[/tex] is the angle subtended by arc AC at the centre.
Since D is on the circumference, [tex]\angle ADC[/tex] is the angle subtended by arc AC on the circumference.
Circle Theorem: The measure of the angle subtended by an arc at the center is twice the measure of the angle subtended by same arc at the circumference.
By the theorem stated above:
[tex]\angle ABC = 2 X \angle ADC\\Since \angle ABC=124^\circ\\124^\circ = 2 X \angle ADC\\ \angle ADC=124^\circ \div 2\\\\ \angle ADC=62^\circ[/tex]
Answer:
The real answer is 20 its not that high of a number
Step-by-step explanation:
What is the range of the function f(x)= 1/2sin(2x-pi)
The answer is [-1/2-1/2]
The range of the function f(x) is [-1/2, 1/2].
What is the range of a function?The range is the set of possible output values, which are shown on the y-axis. The range of a function, f is the set of all values f(x) , such that x is in the domain of f. Graphically speaking, the range is the set of all y such that (x,y) is a point on the graph of f.
For the given situation,
The function f(x) = 1/2sin(2x-π)
The graph below shows the range of the function f(x) = 1/2sin(2x-π) graphically.
As the range of sinx function is [-1, 1], the range of sin2x is also [-1, 1].
Let us consider [tex]\theta = 2x-\pi[/tex]
⇒ Then, [tex]sin \theta[/tex] lies in the range [tex][-1,1][/tex]
⇒ [tex]-1\leq sin(2x-\pi )\leq 1[/tex]
⇒ [tex](\frac{1}{2} )(-1)\leq sin(2x-\pi )\leq( 1)(\frac{1}{2} )[/tex]
⇒ [tex]\frac{-1}{2} \leq sin(2x-\pi )\leq\frac{1}{2}[/tex]
Hence we can conclude that the range of the function f(x) is [-1/2, 1/2].
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What's the present value of $11,000 discounted back 5 years if the appropriate interest rate is 4.5%, compounded semiannually?
Select the correct answer.
a. $7,083.20
b. $7,025.60
c. $7,040.00
d. $7,068.80
e. $7,054.4
Answer:
Step-by-step explanation:
A = P[1 + (r/n)]^(nt)
Look the formula up online to find out what each variable represents if needed.
We are solving for P, which is the principal amount 5 years back.
Substitute 11,000 for A (total amount), 4.5% for r(rate), 2 for n(number of times -- in this case, semiannually), and 5 for t(time -- 5 years).
11000 = P[1+(0.045/2)]^(2x5)
11000 = P (1.0225)^10
11000 = P (1.2492) approx.
Divide both sides by 1.2492 to find P.
P = $8805.64 (approx)
I know that the answer I got is not an option listed. However, I feel that my workings may help other people to answer this question or give them inspiration to answer similar questions. Therefore, I will leave this answer up.
Thanks, and sorry I couldn't do much.
factor 9 - 6a - 24a^2
Answer:
[tex]3(-4a-3)(2a-1)[/tex]
Step-by-step explanation:
[tex]-24a^2-6a+9[/tex]
[tex](-12a-9)(2a-1)[/tex]
[tex]3(-4a-3)(2a-1)[/tex]
Answer:
−3(2a−1)(4a+3)
Step-by-step explanation:
9 - 6a - 24a^2
24a²-6a-9=
−3(2a−1)(4a+3)
We get this because −3(2a−1)(4a+3) equals out to 24a²-6a-9. If you need more explanation, reply to this answer.
2.34−1.7*0.2 = I am very confused
Answer:
2.34-1.7*0.2=2
Step-by-step explanation:
Well to solve this, we need to use PEMDAS:
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Multiplication comes first before subtraction. You can do long multiplication for this and multiply 1.7 and 0.2 together. Once done that, the product of those 2 numbers are 0.34.
Now 2.34-0.34=2.00
Our answer is 2.
Answer:
2
Step-by-step explanation
1.7 x 0.2 = 0.34
2.34-0.34=2
ASAP! GIVING BRAINLIEST! Please read the question THEN answer CORRECTLY! NO guessing. I say no guessing because people usually guess on my questions.
Answer:
Range : { -3,0,4,6}
Step-by-step explanation:
The range of the function is the output values
Range : { -3,0,4,6}
Answer:
C. {-3, 0 ,4, 6}
Step-by-step explanation:
→The range is the total of y-intercepts/outputs. In this case, looking at the function, you can see that the y-intercepts/outputs are 0, -3, 4, and 6.
→The others numbers are the x-intercepts/inputs, which would be the domain of the function.
A trapezoid was broken into two congruent triangles and a rectangle. A trapezoid is broken into 2 triangles and 1 rectangle. The triangles both have a base of 3 centimeters and a height of 12 centimeters. The rectangle has a height of 12 centimeters and a width of 14 centimeters. What is the base length, b, of one of the triangles? 3 cm 4 cm 6 cm 7 cm
complete question:
The picture below is the complete question.
Answer:
base of the triangles = 3 cm
Step-by-step explanation:
The trapezoid was broken into 2 congruent triangles and a rectangle. The 2 triangle have a height of 12 cm . The rectangle has a height of 12 cm and width of 14 cm .
The base length of the triangle can be computed as follows.
Note a congruent triangle have exactly the same three sides and exactly the same three angles.
area of a triangle = 1/2 × base × height
From the area of the trapezoid one can calculate the sides of the triangle.
area of the trapezoid = 1/2 × (a + b)h
where
a = top side
b = base side
h = height
area of the trapezoid = 1/2 × (a + b)h
area of the trapezoid = 1/2 × (14 + 20)12
area of the trapezoid = 1/2 × 34 × 12
area of the trapezoid = 34 × 6
area of the trapezoid = 204 cm²
204 = area of the triangles + area of the rectangle
204 =2 (1/2bh) + lw
where
b = base of triangle
h = height of triangle
l = length of rectangle
w = width of rectangle
204 = bh + (14 × 12)
204 = 12b + 168
12b = 204 - 168
12b = 36
divide both sides by 12
b = 36/12
b = 3 cm
base of the triangles = 3 cm
Answer:
3
Step-by-step explanation:
I got 4cm wrong in the unit test and it showed me that the answer was 3cm
Element X decays radioactively with a half life of 8 minutes. If there are 980 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 43 grams?
y=a(.5)^t/h
Answer:
[tex]t \approx 36.1\,min[/tex]
Step-by-step explanation:
The time constant for the isotope decay is:
[tex]\tau = \frac{8\min}{\ln 2}[/tex]
[tex]\tau \approx 11.542\,min[/tex]
Now, the decay of the isotope is modelled after the following expression:
[tex]m (t) = m_{o}\cdot e^{-\frac{t}{\tau} }[/tex]
The time is now cleared with some algebraic handling:
[tex]\frac{m(t)}{m_{o}} = e^{-\frac{t}{\tau} }[/tex]
[tex]t = -\tau \cdot \ln \frac{m(t)}{m_{o}}[/tex]
Finally, the time need for the element X to decay to 43 grams is:
[tex]t = - (11.542\,min)\cdot \ln\left(\frac{43\,g}{980\,g} \right)[/tex]
[tex]t \approx 36.1\,min[/tex]
The diagram shows the scores given by the panel of judges
during a dancing competition.
a) Which score was the mode?
8
7
6
b)
Frequency
There were 5 judges.
They each gave one score in each
round of the competition.
3
2
How many rounds were there?
+
o
0 1 2 3 4 5
Score
Note: Please make sure your final answer says ... rounds.
Answer:
a) 4b) 6 roundsWhat’s the correct answer for this question?
Answer:
21/100
Step-by-step explanation:
By looking at the table, we can find the box that has information on people who have dogs but do not walk. The number is 21. The total number of people is 100. To find probability, divide 21 by 100.
21/100
This fraction is in its simplest form and cannot be simplified any further.
Billy’s Restaurant ordered 200 flowers for Mother’s Day. They ordered carnations at
$1.50 each, roses at $5.75 each, and daisies at $2.60 each. They ordered mostly
carnations, and 20 fewer roses than daisies. The total order came to $589.50. Write
a system of linear equations that can be used to find c, the number of carnations, r,
the number of roses, and d, the number of daisies.
Answer:
c+r+d= 200
1.50c+5.75r+2.60d= 589.50
r=d-20
Step-by-step explanation:
From the information given you have that Billy's restaurant ordered roses, daisies and carnations that total 200 flowers. The first equation is:
c+r+d= 200
c= number of carnations
r= number of roses
d= number of daisies
Also, you can say that the sum of the results of multiplying the price of each flower for its quantity is equal to $589.50. The second equation is:
1.50c+5.75r+2.60d= 589.50
Besides, from the statement you know there are 20 fewer roses than daisies and from that you can write the third equation:
r= d-20
The system of linear equations that can be used to find c, the number of carnations, r, the number of roses, and d, the number of daisies is:
c+r+d= 200
1.50c+5.75r+2.60d= 589.50
r=d-20
To save money for a sabbatical to earn a master’s degree, you deposit $2000 at the end of each year in an annuity that pays 7.5% compounded annually. a) How much will you have saved at the end of five years? b) Find the interest.
Answer:
The amount he will have at the end of five years is $11,616.8
Interest on the amount is $1,616.8
Step-by-step explanation:
Kindly check the attached picture for explanation.
In the figure below, the polygons are similar. Find the value of x and y. Have a nice day
Answer:
x is 4 and y is 3.
Step-by-step explanation:
The scale factor between the triangles is 2, as you can see. The hypotenuse of the small triangle is 5 while the hypotenuse of the larger one is 10, so the scale factor between the triangles is 2. This means you can divide the other leg lengths of the large triangle by 2 to find the lengths for the corresponding legs of the small one.
A water tower in New York City has the shape of a cylinder with a cone on top. The cylinder has a diameter of 12 feet and a height of 15 feet. The roof has an inclination angle of 25o . There are 7.48 gallons in a cubic foot. If residents of an apartment building are using the water from the tower at an average rate of 56 gallons per minute, determine how long, to the nearest minute, it will take to drain the entire tower.
Answer:
number of minutes to drain the entire tower = 241 minutes(nearest minutes)
Step-by-step explanation:
The water tower has the shape of a cylinder with a cone on top . The volume of the water tower can be find when you find the sum of the volume of the cylinder and the cone.
Therefore,
volume of the cylinder = πr²h
where
r = 12/2 = 6 ft
h = 15 ft
volume = π × 6² × 15
volume = π × 36 × 15
volume of the cylinder = 540π
Volume of the cone = 1/3πr²h
r = 6 ft
Using tangential ratio we can find the height which is the opposite side of the triangle
tan 25° = opposite/adjacent
tan 25° = h/6
cross multiply
h = 6 tan 25°
h = 6 × 0.46630765815
h = 2.79784594893
h = 2.8 ft
volume of the cone = 1/3πr²h
volume = 1/3 × π × 36 × 2.8
volume = 100.8π/3
volume = 33.6π
Volume of the tower system = 540π + 33.6π = 573.6π
volume of the tower system = 573.6 × 3.14 = 1801.104 ft³
1 cubic ft = 7.48 gallons
1801.104 cubic fit = ? gallons
cross multiply
gallons = 1801.104 × 7.48
gallons = 13472.25792 gallons
The residents drains the water at the rate of 56 gallons per minute. Therefore,
56 gallons = 1 minutes
13472.25792 gallons = ? minutes
number of minutes = 13472.25792 /56
number of minutes = 240.576034286
number of minutes to drain the entire tower = 241 minutes(nearest minutes)
omar has 5 liters of water he divides the water evenly between 4 buckets. how many milliters does omar pour in each bucket
Answer:
1250 milliliters
Step-by-step explanation:
Omar has 5 liters of water. He divides evenly between 4 buckets.
5/4 = 1.25
He pours 1.25 liters in each bucket.
Convert 1.25 liters into milliters.
1.25 × 1000
1250 milliliters.
Omar pours 1250 milliliters in each bucket.
Matt bought 4 pie molds at a cost of $0.53 per mold. He also bought 4 pre-
made crusts at a cost of $0.72 per crust. How much did Matt spend on pie
molds? Do not include $ in your answer.
Answer:
2.12
Step-by-step explanation:
He spent 4*0.53 on pie molds.
4*0.53=2.12
Does consuming beer attract mosquitoes? A study done in Burkino Faso, Africa, about the spread of malaria investigated the connection between beer consumption and mosquito attraction.1 In the experiment, 25 volunteers consumed a liter of beer while 18 volunteers consumed a liter of water. The volunteers were assigned to the two groups randomly. The attractiveness to mosquitoes of each volunteer was tested twice: before the beer or water and after. Mosquitoes were released and caught in traps as they approached the volunteers. For the beer group, the total number of mosquitoes caught in the traps before consumption was 434 and the total was 590 after consumption. For the water group, the total was 337 before and 345 after. 1Lefvre T, Gouagna L-C, Dabir KR, Elguero E, Fontenille D, et al. 2010 Beer Consumption Increases Human Attractiveness to Malaria Mosquitoes. PLoS ONE 5(3): e9546. doi:10.1371/journal.pone.0009546 (a) State the null and alternative hypotheses for a test to see if, after consumption, the average number of mosquitoes is higher for the volunteers who drank beer. Let group 1 be the people who drank beer and let group 2 be the people who drank water. SHOW HINT (b) Compute the average number of mosquitoes per volunteer before consumption for each group. Round your answers to two decimal places. Beer group: Water group: Are the two sample means different? Do you expect that this difference is just the result of random chance? SHOW HINT (c) Compute the average number of mosquitoes per volunteer after consumption for each group. Round your answers to two decimal places. Beer group: Water group: Are the two sample means different? Do you expect that this difference is just the result of random chance? SHOW HINT (d) If the difference in part (c) is statistically significant, do we have evidence that beer consumption increases mosquito attraction?
Answer:
Take u1 = average number of mosquitoes attracted after drinking beer
u2 = average number of mosquitoes attracted after drinking water
a) The null and alternative hypotheses:
H0 : u1 = u2
H1 : u1 > u2
b) i) The average number of mosquitoes per volunteer before drinking (beer group) :
[tex] x'1 = \frac{x_1}{n} = \frac{434}{25} = 17.36 [/tex]
Sample mean for mosquitoes attracted before consumption for beer group is 17.36
The average number of mosquitoes per volunteer before drinking (water group) :
[tex] x'2 = \frac{x_2}{n} = \frac{337}{18} = 18.72 [/tex]
Sample mean for mosquitoes attracted before consumption for water group is 18.72
The two means are different.
The difference in the two means are as a result of random choice.
c) i) The average number of mosquitoes per volunteer after drinking (beer group) :
[tex] x'1 = \frac{x_1}{n} = \frac{590}{25} = 23.60 [/tex]
Sample mean for mosquitoes attracted after consumption for beer group is 23.60
ii) The average number of mosquitoes per volunteer after drinking (water group) :
[tex] x'2 = \frac{x_2}{n} = \frac{345}{18} = 19.17[/tex]
Sample mean for mosquitoes attracted after consumption for water group is 19.17
The two sample means are different.
This difference here is likely not to be as a result of random choice, because the mean difference here is greater than the mean difference before consumption.
d) A statistically significant difference provides evidence that beer consumption increases mosquito attraction, as the average number of mosquitoes attracted when drinking beer is higher than the mean number of mosquitoes attracted when drinking water.
A single card is drawn at random from a standard 52 card deck. Work out in its simplest
Answer:
1/52
Step-by-step explanation:
find the equation in standard form of the line passing through the points (2, negative 3) and (4, 2)
A.5x-2y=16
B.2x-3y=9
C.y=5/2x+8
D.5x+2y=16
Answer:
Step-by-step explanation:
(2 + 3)/(4 - 2)= 5/2
y + 3 = 5/2(x - 2)
y + 3 = 5/2x - 5
y = 5/2x - 8
2y = 5x - 16
5x - 2y = 16
Consider writing onto a computer disk and then sending it through a certifier that counts the number of missing pulses. Suppose this number X has a Poisson distribution with parameter μ = 0.2. (Round your answers to three decimal places.)
Required:
a. What is the probability that a disk has exactly one missing pulse? (Round to four decimal places)
b. What is the probability that a disk has at least two missing pulses? (Round to four decimal places)
c. If two disks are independently selected, what is the probability that neither contains a missing pulse?(Round to four decimal places)
Answer:
a) 0.164 = 16.4% probability that a disk has exactly one missing pulse
b) 0.017 = 1.7% probability that a disk has at least two missing pulses
c) 0.671 = 67.1% probability that neither contains a missing pulse
Step-by-step explanation:
To solve this question, we need to understand the Poisson distribution and the binomial distribution(for item c).
Poisson distribution:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!} [/tex]
In which
x is the number of sucesses
[tex] e = 2.71828[/tex] is the Euler number
[tex]\mu[/tex] is the mean in the given interval.
Binomial distribution:
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
Poisson mean:
[tex]\mu = 0.2[/tex]
a. What is the probability that a disk has exactly one missing pulse?
One disk, so Poisson.
This is P(X = 1).
[tex]P(X = 1) = \frac{e^{-0.2}*0.2^{1}}{(1)!} = 0.164 [/tex]
0.164 = 16.4% probability that a disk has exactly one missing pulse
b. What is the probability that a disk has at least two missing pulses?
[tex]P(X \geq 2) = 1 - P(X < 2)[/tex]
In which
[tex]P(X < 2) = P(X = 0) + P(X = 1)[/tex]
In which
[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!} [/tex]
[tex]P(X = 0) = \frac{e^{-0.2}*0.2^{0}}{(0)!} = 0.819[/tex]
[tex]P(X = 1) = \frac{e^{-0.2}*0.2^{1}}{(1)!} = 0.164 [/tex]
[tex]P(X < 2) = P(X = 0) + P(X = 1) = 0.819 + 0.164 = 0.983[/tex]
[tex]P(X \geq 2) = 1 - P(X < 2) = 1 - 0.983 = 0.017[/tex]
0.017 = 1.7% probability that a disk has at least two missing pulses
c. If two disks are independently selected, what is the probability that neither contains a missing pulse?
Two disks, so binomial with n = 2.
A disk has a 0.819 probability of containing no missing pulse, and a 1 - 0.819 = 0.181 probability of containing a missing pulse, so [tex]p = 0.181[/tex]
We want to find P(X = 0).
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 0) = C_{2,0}.(0.181)^{0}.(0.819)^{2} = 0.671[/tex]
0.671 = 67.1% probability that neither contains a missing pulse
College Algebra functions?
Answer:
See below.
Step-by-step explanation:
For the first one:
[tex]f(x)=\frac{4x+3}{5x+2}[/tex]
[tex]f(\frac{1}{x})= \frac{4(\frac{1}{x})+3}{5(\frac{1}{x})+2 }[/tex]
First, multiply both top and bottom by [tex]x[/tex].
Thus:
[tex](\frac{4(\frac{1}{x})+3}{5(\frac{1}{x})+2 } )\cdot \frac{x}{x}[/tex][tex]=\frac{4+3x}{5+2x}[/tex]
It cannot be simplified further.
For the second one:
[tex]g(x)=\sqrt{x^2-8x}[/tex]
[tex]g(x-2)=\sqrt{(x-2)^2-8(x-2)}[/tex]
[tex]\sqrt{(x^2-4x+4)-8x+16}[/tex]
[tex]\sqrt{x^2-12x+20}[/tex]
And that cannot be simplified further.
What is the value of x?
65°, 79° , X
Answer:
x=36 degrees
Step-by-step explanation:
Remember that all angles of a triangle must add up to 180 degrees due to the Angle Addition Postulate. So let's plug it in! x+65+79=180
Now you solve, x=180-79-65
x=36!
x=36 degrees
Answer:
Option B
Step-by-step explanation:
All interior angles of a triangle add up to 180°.
[tex]79+65+x=180\\144+x=180 \\144-144+x=180-144\\\boxed {x=36}[/tex]
The missing angle is 36°.
Option B should be your correct answer.
Are the two figures necessarily similar? Type "yes" or "no".
Two rhombuses =
Two circles =
Two isosceles triangles =
Two regular hexagons =
Answer:
Two rhombuses are not necessarily similar , No
Two circles are always similar , Yes
Two isosceles are similar , Yes
Two regular hexagons will be similar , Yes
The similar figures are Circle, Isosceles triangle and regular hexagons.
Geometric shapes are the figures which demonstrate the shape of the objects we see in our everyday life. In geometry, shapes are the forms of objects which have boundary lines, angles and surfaces. There are different types of 2d shapes and 3d shapes.
Two rhombuses are not necessarily similar: NoTwo circles are always similar: YesTwo isosceles are similar: YesTwo regular hexagons will be similar: YesTherefore the similar figures are Circle, Isosceles triangle and regular hexagons.
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how much is 78ml when you turn it to litres
1000ML = 1 L
78ML ?
78*1/1000 = 0.078 L
Please answer this correctly
Answer:
Area = 2.33 mm²
Explanation:
Perimeter of quarter circle = 14.28
But
Perimeter of quarter circle = 2πr+2r
So
2πr+2r = 14.28
6.3r+2r = 14.28
8.3r = 14.28
r = 14.28/8.3
r = 1.7 mm
Now the Area
Area of quarter circle = 1/4(πr²)
= 1/4(3.14)(1.7)²
= 1/4(3.14)(2.97)
= 1/4(9.34)
= 2.33 mm²
Fahim is 6 feet tall. At noon, he stands with the sun behind him casting a shadow. The distance from the top of Fahim’s head to the furthest tip of the shadow is 13 feet. A right triangle with side length 6 feet, s, and hypotenuse 13 feet. [Not drawn to scale] What is the length of Fahim’s shadow? Round to the nearest tenth of a foot.
Answer:
11.5
Step-by-step explanation:
using Pythagoras theorem
the square of 13 equals the square of 6 and the unknown side
Answer:
11.5 feet
Step-by-step explanation:
I just took the quiz on edge
Rathaus thinks all the factors of even numbers are even which explains wether Rathan is correct
Answer:
Incorrect
Step-by-step explanation:
It is incorrect because all even numbers have a factor of 1.
That is odd.
Answer:
False
Step-by-step explanation:
even numbers has odd & even factors
6 is an even number
Factors of 6 = 2 , 3
Where 3 is a odd number
Evaluate the expression 6•14-(9+8)2
Answer:
50
Step-by-step explanation:
First things first, use PEMDAS.
Parenthesis is first.
(9+8) is in parenthesis. 9+8 is obviously 17.
The equation now looks like this:
6 x 14 - 17 x 2
There is no exponents, but there is multiplication. 6 x 14 is 84 and 17 x 2 is 34. They both are multiplication equations.
The equation now looks like this:
84 - 34
84-34 is 50. 50 is your answer.
