Hey there!
5(4r + 3) - 2x
DISTRIBUTE 5 WITHIN the PARENTHESES
= 5(4r) + 5(3) - 2x
= 20r + 15 - 2x
COMBINE the LIKE TERMS (if they are any)
Seems like you don’t have any like terms so we could leave it as it is!
= 20r + 15 - 2x
= 20r - 2x + 15
Therefore, the answer should be:
20r - 2x + 15
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
hello I NEED HELP PLSSS
Please Help me find the figure , area formula and the area
Answer:
figure: parallelogram
area formula: base× height
A=bh
A= 13×6
A=78
Step-by-step explanation:
Opposite sides of a parallelogram are congruent.: AD=BC
DC=AB
Jim's car lot is having a sale! They have the truck you've always wanted and it is $3000 cheaper than you've seen anywhere else. Today it is $35,000. You can put $1000, then pay $700 a month for 5 years. How much are you paying total for the truck?
Answer:
34000
Step-by-step explanation:
In this simplest form what is the ratio of circles and triangles
There are 3 shapes present.
Triangle - 2
Circle - 4
Square - 2
The ratio of triangles to circles: 2 triangles to 4 circles ⇒ 2/4
2/4 simplified to 1/2.
Determine whether the series is arithmetic or geometric. Then evaluate the finite series for the specified number of terms. 10 + 7 + 4 + . . .; n = 5
Answer:
10 + 7 + 4 + . . .; n = 5
The series is arithmetic
Common difference between terms = (-3)
10 - 3 = 7
7 - 3 = 4
Or:
10 + (-3) = 7
7 + (-3) = 4
--------------------------------------------------------------------------
Another example:
Arithmetic:
5, 9, 13, 17
common difference = 4
5 + 4 = 9
9 + 4 = 13
Geometric:
4, 8, 16, 32
4 × 2 = 8
8 × 2 = 16
16 × 2 = 32
common ratio = 2
--------------------------------------------------------------------------
10 + 7 + 4 + . . .; n = 5
a₁ = 10
a₂ = 7
a₄ = a₃ + d = 4 + (-3) = 4 - 3 = 1 (d = common difference)
a₅ = a₄ - 3 = 1 - 3 = -2
Or with formula:
[tex]d=a_{n} -a_{n-1}[/tex]
d = a₂ - a₁ = 7 - 10 = -3
aₙ = a₁ + (n - 1)d
fourth term = a₄ = 10 + (4 - 1)(-3) = 10 + 3(-3) = 10 + (-9) = 10 - 9 = 1
fifth term = a₅ = 10 + (5 - 1)(-3) = 10 + 4(-3) = 10 + (-12) = 10 - 12 = -2
Sum of the finite series (if n = 5):
[tex]S_{n} =\frac{n(a_{1} +a_{n} )}{2} \\S_{5} =\frac{5(a_{1} +a_{5} )}{2} \\S_{5} =\frac{5(10 +(-2) )}{2} \\S_{5} =\frac{5(8 )}{2} =\frac{40}{2} =20[/tex]
Manual count: S₅ = 10 + 7 + 4 + 1 + (-2) = 20
HELP PLEASE LOTS OF POINTS!!
Answer:
890.625
Step-by-step explanation:
2.5x2.5x2.5 (Volume of Cube)=15.625
Density is 57
57=x/15.625
890.625=x
HELP ME ASAP PLS Find the surface area of each pyramid. Round to the nearest tenth if necessary.
Answer:
357.46 meters squared
Step-by-step explanation:
16 x 12.2 x 1/2 = 97.6
12.2 x 10.6 = 64.66
97.6 x 3 = 292.8
292.8 + 64.66 = 357.46
Given that 7^2 = 12^x, evaluate 12^2x.
Answer:
12^2x = 7^4 = 2401
7^2=12^x
We know that a^x * a^x = a^(x+x) or a^2x
Multiply each side by 12^x
7^2 * 12^x=12^x * 12^x
7^2 * 12^x = 12^(x+x)
Replace 12^x with 7^2 on the left hand side since they are equal
7^2 * 7^2 = 12^ (2x)
7^(2+2) = 12^(2x)
7^4 = 12^2x
2401 = 12^2x
Step-by-step explanation:
PLEASE HELP!!!!!!!!!!!!!!
Simplify (-5)^5/(-5)^-6
Which choice shows the product of 22 and 39
Answer: the product of this question is 858
Step-by-step explanation:
What is the solution of
5/2x-7=3/4x+14
A. X=-6
B. X=6
C.x=8
D. X=12
Answer:
D. x=12
Step-by-step explanation: quick maths
Which group had the highest percentage of students like Sport.
………………………………………
b) Which group had the less percentage of students like English.
………………………………………
c) Calculate the percentage of students like Math for each group.
Group A = ……………………………………..
Group B = …………………………………….
The group that had the highest percentage of students that like Sports is group B.
The group that had the less percentage of students that like English is group A.
the percentage of students like Math in group A is 30% and 10% in group B
What are the percentages?
A pie chart is a graph that displays information in a circle. The circle is divided into slices which represent a numerical proportion. The sum of angles in a pie chart is 360 degrees
Percentage of students that like sports in:
Group A = [20 / (20 + 15 + 5 + 10)] x 100 = 40%Group B = [22 / (5 + 4 + 9 + 22)] x 100 = 55%Percentage of students that like English in:
Group A = [5 / (20 + 15 + 5 + 10)] x 100 = 10%Group B = [5 / (5 + 4 + 9 + 22)] x 100 = 22.5%Percentage of students that like Maths in:
Group A = [15 / (20 + 15 + 5 + 10)] x 100 = 30%Group B = [4 / (5 + 4 + 9 + 22)] x 100 = 10%To learn more about pie charts, please check: https://brainly.com/question/26250795
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An english test has 20 questions. A student answers 76% correctly. How many questions does the student answer correctly?
Help i don’t know how to do this
Answer:
ok so first you add all the prices together.
$9:00+$7:00+$8:00+$6:00+$4:00=34
then divide 34 by the number of prices.
34/5
then you get the mean
$6.8 is the mean
Step-by-step explanation:
Theater tickets to the Livingston Theater production cost $18 for students and $25 for non-students. If 320 tickets were sold, and the total sales of all of the tickets was $6719, how many student tickets were sold
The total number of student tickets were sold is 183 if the theater production cost $18 for students and $25 for non-students.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
Let's suppose the x number of students tickets were sold and
y number of tickets were sold for non students.
Then we can frame two linear equations:
x + y = 320 ...(1)
18x + 25y = 6719 ...(2)
From equation (1) take the value of y and plug into the equation (2)
18x + 25(320 - x) = 6719
18x + 8000 - 25x = 6719
7x = 1281
x = 183 tickets
Thus, the total number of student tickets were sold is 183 if the theater production cost $18 for students and $25 for non-students.
Learn more about the linear equation here:
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Is the following function linear or nonlinear
t = -8k + 2k - 4
a) linear
b) nonlinear
NEED HELP FAST
Select the properties that equilateral triangles and isosceles triangles have in common.
0 sides of equal length
2 sides of equal length
3 sides of equal length
3 equal angles
The properties that equilateral triangles and isosceles triangles have in common is that they have two equal sides.
What is a triangle?A triangle is a polygon that has three sides and three angles. Types of triangles are isosceles, equilateral and scalene triangle.
An equilateral triangle is a triangle that have three equal sides while isosceles triangle have two equal sides.
The properties that equilateral triangles and isosceles triangles have in common is that they have two equal sides.
Find out more on triangle at: https://brainly.com/question/17335144
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ITS THE LAST QUESTION HELP!!!!!!!!!!!!
Answer:
ans willbe -8
Step-by-step explanation:
-1/2 × 2 =-1
-1×2=-2
-2×2=-4
-4×2=-8
Write and solve an equation to find the measure of angle B.
Answer:
∠B = 40°
Step-by-step explanation:
The given angle relations can be expressed in two equations.
__
setupA + B = 90° . . . . . . . . angles are complementary
A×(1 -20%) = B . . . . . B is 20% smaller
__
solutionUsing the second equation to substitute for B in the first equation, we get ...
A + 0.80A = 90° . . . . . . substitute for B
A = 90°/1.8 = 50° . . . . . collect terms, divide by the coefficient of A
B = A(0.80) = 40° . . . . find B from A
The measure of angle B is 40°.
Please Help Me with All of these!!!!!! Conditional Probability
The questions are all illustrations of conditional probabilities, and they can be solved using the general conditional probability formula; P(A|B) = P(A and B)/P(B)
How to determine the conditional probabilities?The conditional probability P(A|B) is calculated using:
P(A|B) = P(A and B)/P(B)
Using the above formula, we have:
P(has at least 4 sides| not a hexagon) = 38/50
P(has at least 4 sides| not a hexagon) = 0.76
P(not a square | has less than 7 sides) = 30/45
P(not a square | has less than 7 sides) = 0.67
P(not an octagon | not a triangle) = 39/51
P(not an octagon | not a triangle) = 0.76
P(octagon | sum of interior angle measures is at least 600) = 9/25
P(octagon | sum of interior angle measures is at least 600) = 0.36
Students in Wayland high schoolThe conditional probability is calculated using:
P = P(perfect attendance and honor roll)/P(Honor roll)
So, we have:
P = 25%/38%
Evaluate
P = 0.66
Hence, the probability that a student has a perfect attendance, given that he made the honor roll is 0.66
Homes on the marketThe conditional probability is calculated using:
P = P(Home has a pool and at least 3 bedrooms)/P(at least 3 bedrooms)
So, we have:
P = 25%/70%
Evaluate
P = 0.36
Hence, the probability that a home has a pool, given that it has at least 3 bedrooms is 0.36
Conditional probability using Venn diagramUsing the conditional probability formula in (a), we have:
P(uses Ins tag ram| does not use Sna pch at) = 45/(20 + 45)
P(uses Ins tag ram| does not use Sna pch at) = 0.69
P(does not use Ins tag ram| uses Sna pch at) = 25/(30 + 25)
P(uses Instag ram| does not use Sna pch at) = 0.45
Sports and Part-time jobUsing the conditional probability formula in (a), we have:
P(plays sport| has a part-time job) = 22/68
P(plays sport| has a part-time job) = 0.32
P(has a part-time job| plays sport) = 22/40
P(has a part-time job| plays sport) = 0.55
Read more about conditional probability at:
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A truck driver needs to drive 400 miles. The drivers average speed for the first 180 miles is b miles per hour. The drivers average speed for the rest of the trip is c miles per hour. Enter an equation for the total time, t, in hours it took the driver to complete the entire trip
Step-by-step explanation:
speed = distance/time
time = t = distance/speed
t = 180/b + (400-180)/c = 180/b + 220/c = 20(9/b + 11/c)
help, question below
What is the height of the cone below?
= 90 cm°
B = 18 cm-
© 5 cm
0 6 cm
• 15 cm
© 30 cm
Answer:
Nearly the answer is 15 cm
because answer is in decimals
The mean of the following data is 509. {419,450,462,499,520,521,589,612}
What is the mean absolute deviation for the data set?
Enter your answer as a number rounded to the nearest tenth, like this: 42. 5
- - - - - - - - - - - - - - - - - - - - - - - -
" The mean of the following data is 509. {419, 450, 462, 499, 520, 521, 589, 612} "
- - - - - - - - - - - - - - - - - - - - - - - -
First, divide the mean (or average) by the population size (amount of numbers in the set).
509 / 8 = 51.5
There you go! Your absolute deviation.
- - - - - - - - - - - - - - - - - - - - - - - -
Good luck!
~pinetreee
The mean absolute deviation for the data set is 51.5.
What are mean and median?The mean is the average value which can be calculated by dividing the sum of observations by the number of observations
Mean = Sum of observations/the number of observations
Median represents the middle value of the given data when arranged in a particular order.
We are given that;
Mean= 59
{419,450,462,499,520,521,589,612}
Now,
Count the number of data values in the set. In this case, n = 8.
Subtract the mean from each data value and take the absolute value. For example:
∣419−509∣=90
∣450−509∣=59
∣462−509∣=47
∣499−509∣=10
∣520−509∣=11
∣521−509∣=12
∣589−509∣=80
∣612−509∣=103
Add up all the absolute differences and divide by n. For example:
MAD=890+59+47+10+11+12+80+103
MAD=412/8
MAD=51.5
Therefore, by mean the answer will be 51.5.
Learn more about mean and median;
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Which is equivalent to 50 - 10 - 15? A. 50 - (-10) + (-15) … B. 50 + (-10) - (-15) C…. 50 + (-10) + (-15) D…. 50 - (-10) - (-15)
The equivalent expression of the given expression 50 - 10 - 15 will be 50 + (- 10) + (- 15). Then the correct option is C.
What is an equivalent expression?The equivalent is the expressions that are in different forms but are equal to the same value.
The expression is given below.
→ 50 - 10 - 15
Then the expression can be written as
→ 50 + (- 10) + (- 15)
Thus, the correct option is C.
More about the equivalent link is given below.
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This triangle can be called obtuse or __________.
A: equilateral
B: isosceles
C: scalene
D: right
tom is planning a party for five friends at a game arcade. He can buy different numbers of game tokens for the prices shown on the table
each friend will have 25 game tokens.
how much money could tom save, in dollars, if he buys all 125 tokens before the party rather than separately as each friends arrive?
Answer:
He can save 20 dollars
Step-by-step explanation:
He can buy one 100 token amount and one 25 token amount. This will cost 20 + 10 dollars, or 30 dollars. If each friend buys 25 tokens, it will cost
10 * 5 dollars, or 50 dollars. 50 - 30 = 20. So he can save 20 dollars.
Christine, Kareem, and Trey have a total of $133 in their wallets. Kareem has $5 more than Christine. Trey has 4 times
what Kareem has. How much do they have in their wallets?
Answer:
Christine has $18, Kareem has $23, and Trey has $92.
Step-by-step explanation:
This can be solved by using variables to represent the unkown values.
x = Christine's money
x + 5 = Kareem's money.
4(x + 5) = Trey's money.
x + (x + 5) + 4(x + 5) = 133
2x + 5 + 4x + 20 = 133
6x = 108
x = $18
This means that Christine has $18, Kareem has $23, and Trey has $92.
Hope this helps
A cosine function is a reflection of its parent function over the x-axis. The amplitude of the function is 9, the vertical shift is 11 units down, and the period of the function is 12π7. The graph of the function does not show a phase shift.
What is the equation of the cosine function described?
Drag a value into each box to correctly complete the equation of the function
Answer
f(x) = -9 cos((12(pi) / 7)x) -11
The base equation for a cosine graph is
f(x) = a cos(b(x-c))+d
a = amplitude
b = period
c = phase shift
d = vertical shift
if there's a reflection over the x-axis then there is a negative sign in front of the amplitude
I wrote the equation previously but it got deleted so let me know if you have any problems with this explanation
Maya and Aimee compare the fractions 2/3 and 3//5. Their work is shown below.
Answer:
Maya is correct. She wrote equivalent fractions with the same denominator and then correctly compared the fractions. Aimee wrote equivalent fractions with the same numerator but did not correctly compare the fractions. Only Maya is correct.
When you're comparing fractions, you have to set them equal to the same denominator, not the same numerator.
Hope this helps
