Answer:
£189
Step-by-step explanation:
Divide the cost by 9 to find the cost of 1 ticket, then multiply this by 7
cost of 1 ticket = £243 ÷ 9 = £27
cost of 7 tickets = 7 × £27 = £189
A can of nuts weighs 1 pound, 1 ounce. The empty can weighs 3 ounces. If you pour out half the nuts into a bowl, how many ounces of nuts are in the bowl?
Answer:
7 ounces
Step-by-step explanation:
There are 16 ounces in one pound, so there are 17 ounces for the can of nuts.
Since the empty can weighs 3 ounces, you can subtract 17-3, which equals 14, to get the weight of the nuts alone.
Then, you divide 14 by 2, and you get 7.
help please i’ll give brainlest
Answer:
a, c, d
Step-by-step explanation:
Answer:
A,C,D
Step-by-step explanation:
sorry if incorrect
Which of the following is equivalent to the
given expression? *
(1 + sin a/1 - sin a) - (1 – sin a/1 + sin a)
Answer:
Solution given:
[tex] \frac{1 + \sin( \alpha ) }{1 - \sin( \alpha ) } - \frac{1 - \sin( \alpha ) }{1 + \sin( \alpha ) } [/tex]
[tex] \frac{(1 + \sin( \alpha )) {}^{2} - (1 - \sin( \alpha ) {}^{2} }{1 - \sin{}^{2} \alpha }[/tex]
[tex] \frac{1 + 2 \sin( \alpha ) + \sin {}^{2} ( \alpha ) - 1 + 2 \sin( \alpha ) - \sin {}^{2} ( \alpha ) }{ { \cos }^{2} \alpha } [/tex]
[tex] \frac{4 \sin( \alpha ) }{ \cos {}^{2}( \alpha ) } [/tex]
[tex]4 \tan( \alpha ) \sec( \alpha ) [/tex]
is your answer.
Match each expression in the first list with an equivalent expression from the second
list.
A. 7(x + 2) - x + 3
B. 6x + 3 + 4x + 5
C. 3x – 7 + 3x - 3
D. 8x -5 +4-9
E. 24x + 36
1. 1/5x - 10
2. 6x + 17
3. 2(5x + 4)
4. 12(2x + 3)
5. 8x + (-5) +4 + (-9)
PLEASE HELP!! I’ll give brainliest to most useful answer :)
The equivalent expression is shown below.
What is expression?An expression is a set of terms combined using the operations +, – , x or /.
A. 7(x + 2) - x + 3
=7x+14-x+3
=6x+17
B. 6x + 3 + 4x + 5
=10x+8
= 2(5x+4)
C. 3x – 7 + 3x - 3
=6x-10
= 2(3x-5)
D. 8x -5 +4-9
=8x + (-5) +4 + (-9)
E. 24x + 36
= 12(2x + 3)
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i've been hospitalized for months, and i have a math test coming up. ill pay you $47 if you answer them correctly. i'm attaching the test. my discord is
aurora#9136
Answer:
7. B
8. C
9. Angles 2, 7, and 6
Step-by-step explanation:
There's three of them, hope it helps!
In a game show, a contestant receives a prize that has a % chance of being worth $ and a % chance of being worth $. What is the expected value of winning a prize?
Answer:
112
Step-by-step explanation:
Expected Value is anticipated value, calculated by multiplying each of possible outcomes with their probability of occurrence.
If Price has = 60% chance of value 120 , & 40% chance of value 100
Expected Value = Sum ( Probability of outcome x Payoff )
E (X) = Σ [ xi . PR ( xi ) ] = x1. Pr (x1) + x2 . Pr (x2)
= 0.6 (120) + 0.4 (100) = 72 + 40
= 112
Which measure describes the standard error of the mean? A. the central limit theorem B. the sample mean C. the confidence interval D. the standard deviation of the means
Answer:
Correct answer: (Standard Deviation of means)
Step-by-step explanation:
#platolivesmatter
Hoped this helped! XD
The standard deviation of the means measure describes the standard error of the mean
Statistic is the study of mathematics that deal with relations between comprehensive data.
A standard deviation (or σ) is a measurement of how spread the information is in relation to the mean. A lower standard deviation means data are bunched around the mean, and a high standard deviation implies data are more scattered out, and best describes the error related to or around the mean.
From the above definition it is clear that standard deviation of the means measure describes the standard error of the mean.
Thus, the standard deviation of the means measure describes the standard error of the mean
.
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Which measure describes the standard error of the mean to be determined from the option given below.
A. the central limit theorem B. the sample mean C. the confidence interval D. the standard deviation of the means
Urgent help needed, thanks!
Answer:
2/5 is the rest of the shirts
Step-by-step explanation:
What is the total area of the figure below?
An arithmetic progression consists of 37 terms. The sum of the first 3 terms of
it is 12 and the sum of its last-3 terms is 318, then find the first and last terms
of the progression.
Answers:
First term = 1Last term (37th term) = 109=======================================================
Explanation:
a1 = first term
a2 = second term
a3 = third term
and so on, until we reach a37 to represent the 37th term
We don't know the first term, but we'll call it x for now. We'll also let d be the difference between each adjacent term, aka the common difference.
Meaning that,
a1 = xa2 = a1+d = x+da3 = a2+d = (x+d)+d = x+2da4 = a3+d = (x+2d)+d = x+3dand so on, until,
a35 = x+34da36 = x+35da37 = x+36d---------------------
Add up the first three terms (a1 through a3) and set the sum equal to 12
Then do a bit of algebra to get
a1+a2+a3 = 12
(x)+(x+d)+(x+2d) = 12
3x+3d = 12
3(x+d) = 12
x+d = 12/3
x+d = 4
x = 4-d
Do the same for the last three terms, but the sum here is 318
a35+a36+a37 = 318
(x+34d)+(x+35d)+(x+36d) = 318
3x+105d = 318
3(x) + 105d = 318
3(4-d)+105d = 318 .... replace x with 4-d; isolate d
12-3d+105d = 318
102d+12 = 318
102d = 318-12
102d = 306
d = 306/102
d = 3
The common difference is 3. It means each term is increasing by 3.
Use this value of d to find x
x = 4-d
x = 4-3
x = 1
The first term is 1. That makes the second term x+d = 1+3 = 4, then the third term is x+2d = 1+2*3 = 7, and so on.
The sum of the first three terms is 1+4+7 = 12. That helps partly confirm the answer.
Also we have,
a35 = x+34d = 1+34(3) = 103a36 = x+35d = 1+35(3) = 106a37 = x+36d = 1+36(3) = 109 is the last term (37th term)Or you could note that the 35th term is 103, and then you increase by 3 each time to get the remaining two terms.
The last part of the confirmation is adding up those three last terms: 103+106+109 = 318, so the answer is fully verified at this point.
Side note: An arithmetic sequence never ends. There technically is no "last term"; however, since we're confined to focusing on these specific 37 terms, we can get away with using the phrasing.
The function (t) = 1,000(1.06)2t models the value of an investment after tyears.
Part B: What does the coefficient"2" represent in the exponent of the function?
the total amount of money earned in the investment
the initial amount of money invested
the number of compounding periods per year
the interest rate of the investment
Answer: B not sure if I’m right though .
Step-by-step explanation:
Derrick needs to figure out how he’s doing on his test scores so far this year. You can help by calculating the mean and the median to get an overall picture of his scores. Below are all of his scores:
25, 40, 68, 85, 95, 98, 70, 78, 85, 100
Answer:
Mean = 74.4
Median = 81.5
Step-by-step explanation:
25, 40, 68, 85, 95, 98, 70, 78, 85, 100
Mean = Sum of values / Number of values
Number of values = 10
= 25 + 40 + 68 + 70 + 78 + 85 + 85 + 95 + 98 + 100/10
= 744/10
= 74.4
Median
Rearranging the given data
= 25, 40 ,68 ,70 ,78 ,85 ,85 , 95 ,98 ,100
Formula for median = 1/2(n + 1)th value
n = 10
Hence
1/2(10 + 1)th value
1/2(11)th value
= 5.5 th value
This fall between the 5th and 6th value
5th value = 78
6th value = 85
Hence: 78 + 85/2
= 163 / 2
= 81.5
Find angle RUS PLEASE HELP ME
Answer:
m∠RUS = 37°
Step-by-step explanation:
In a rhombus, diagonals bisect angles. In other words,
m∠RUS = m∠SUT
Substitute and solve.
10x - 23 = 3x + 19
7x = 42
x = 6
Substitute x = 6 into the equation given for m∠RUS
m∠RUS = (10x-23)
m∠RUS = 37°
match each equation to an equivalent equation written in slope intercept form
Answer:
2x+y=3 --> y= -2x+3
2y-6=x --> y= 1/2x+3
x-3y=-6 --> y= 1/3x+2
-x+1/2y=3 --> y= 2x+6
Step-by-step explanation:
i hope this helps :)
The solution to the system of equations is
2x + y = 3 ; y = -2x + 3
2y - 6 = x ; y = ( 1/2 )x + 3
x - 3y = -6 ; y = ( 1/3 )x + 2
-x + ( 1/2 )y = 3 ; y = 2x + 6
What is an Equation of a line?The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the equation be represented as A
Now , the value of A is
a)
Let the equation be 2x + y = 3
Subtracting 2x on both sides of the equation , we get
y = 3 - 2x
So , the equation in slope intercept form is y = 3 - 2x
b)
Let the equation be 2y - 6 = x
Adding 6 on both sides of the equation , we get
2y = x + 6
Divide by 2 on both sides of the equation , we get
y = ( 1/2 )x + 3
So , the equation in slope intercept form is y = ( 1/2 )x + 3
c)
Let the equation be x - 3y = -6
Adding 3y on both sides of the equation , we get
x = 3y - 6
Adding 6 on both sides of the equation , we get
3y = x + 6
Divide by 3 on both sides of the equation , we get
y = ( 1/3 )x + 2
So , the equation in slope intercept form is y = ( 1/3 )x + 2
d)
Let the equation be -x + ( 1/2 )y = 3
Adding x on both sides of the equation , we get
( 1/2 )y = 3 + x
Multiply by 2 on both sides of the equation , we get
y = 2x + 6
So , the equation in slope intercept form is y = 2x + 6
Hence , the equations are solved
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FREEEE POINTS REALLY
Answer:
x is less than 46
x<46°
Step-by-step explanation:
............
The best player on a basketball team makes 85% of all free throws. The second-best player makes
75% of all free throws. The third-best player makes 70% of all free throws. Based on their
experimental probabilities, estimate the number of free throws each player will make in his or her
next 40 attempts. Explain.
For the best player, one equation that gives the estimated number of free throws is____. The best player will make about______.
free throws.
Answer:
i. Estimated number of free throws of the best player = 0.85 * 40
ii. 34 free throws
Step-by-step explanation:
Percentage of free throws made by the best player = 85%
Percentage of free throws made by the second best player = 75%
Percentage of free throws made by the third best player = 70%
Therefore, for 40 attempts;
i. Estimated number of free throws made by the best player = 85% x 40
= 0.85 x 40
= 34
ii. Estimated number of free throws made by the second best player = 75%x 40
= 0.75 x 40
= 30
iii. Estimated number of free throws made by the third best player = 70% x 40
= 0.70 x 40
= 28
Thus, the equation that gives the estimated number of free throws is 0.85 * 40.
The best player will make about 34 free throws.
Use the parabola tool to graph the quadratic function y=-1? - 2.0 +8
Graph the parabola by first plotting its vertex and then plotting a second point on the parabola.
Answer:
see explanation
Step-by-step explanation:
I don't have graphing facilities but can give you the vertex and 1 other point.
Given a parabola in standard form
y = ax² + bx + c ( a ≠ 0 )
Then the x- coordinate of the vertex is
x = - [tex]\frac{b}{2a}[/tex]
y = - x² - 2x + 8 ← is in standard form
with a = - 1 and b = - 2 , then
x = - [tex]\frac{-2}{-2}[/tex] = - 1
Substitute x = - 1 into the equation for corresponding value of y
y = - (- 1)² - 2(- 1) + 8 = - 1 + 2 + 8 = 9
vertex = (- 1, 9 )
To obtain another point substitute any value for x into the equation
x = 0 : y = 0 - 0 + 8 , then (0, 8 ) is a point on the graph
x = 2 : y = - (2)² - 2(2) + 8 = - 4 - 4 + 8 = 0 then (2, 0 ) is a point on the graph
What is the value of n in the equation below? a^n/ a^3 = a^9
a. 3
b. 6
c. 12
d. 27
Answer:
C, 12
Step-by-step explanation:
Helpp plsss I neeed to finish this test ASAP plssssssss thank youu helpp me with this question
Answer:
try 19.8
Step-by-step explanation:
The ratio of sam's age to Hank's age is 5 to 3.if the sum of their ages is 24, how old is Hank?
a. 21
b. 9
c. 19
d. 15
Answer:
c is the answer if this question
The average of the first 3 numbers was 28. The average of the next 12 numbers was 38. What was the overall average of the numbers?
***NO SPAM, PLEASE!!!!!!***
Answer:
ther overall average would be 36
Step-by-step explanation:
What is the circumference of a circle with a diameter of 5 feet use 3.14 for pi
Answer:
15.7
Step-by-step explanation:
Circumference= πd
d= Diameter
you toss a coin and spin a spinner. the spinner has four equal sections that are numbered from 1 to 4. find the probability of getting tails and spinning a 4.
also, make a table to show the sample space and find the number of outcomes.
Answer:
12.5% or .125
Step-by-step explanation:
4 options for the spinner all with equal probability, chance of spinning any number is 1/4; 2 options for the coin of equal probability so any side has a probability of 1/2. 1/4*1/2=1/8 chance; this is equal to 12.5% or .125.
there are 8 possible outcomes; 4 with spinner, 2 with coin, 4*2=8.
Calculate the perimeter and the area. Can yall help and if you could show the steps
Answer:
area of circle=π[tex]r^{2}[/tex]
=3.14*(6)^2
=3.14*36
=113.04 cm^2
perimeter of circle=2πr
=2*3.14*6
=37.68 cm
Step-by-step explanation:
Adam has an inflatable pool toy
Answer:
yes
Step-by-step explanation:
Answer:
nice.
Step-by-step explanation:
₊˚ ꒰ mei ꒱ ‧₊˚
A cooking school is teaching students how to make pasta noodles. The line plot displays how much flour each student used. How many total cups of flour did the students use to make the pasta?
Answer:
[tex]Total = 11\frac{1}{8}\ cups[/tex]
Step-by-step explanation:
Given
See attachment for plot
Required
Total number of cups used
The number of dot on each dataset represent the number of student
So, to get the total number of cups, we simply add the product of the number of cups and the number of student for each data item
So, we have:
[tex]Total = \frac{1}{8} * 6 + \frac{1}{4} * 5 + \frac{3}{8} * 2 + \frac{1}{2}*0 + \frac{5}{8} * 4 + \frac{3}{4} * 2 + \frac{7}{8} * 5[/tex]
[tex]Total = \frac{6}{8} + \frac{5}{4} + \frac{6}{8} + 0+ \frac{20}{8} + \frac{6}{4} + \frac{35}{8}[/tex]
Solve
[tex]Total = \frac{6+10+6+0+20+12+35}{8}[/tex]
[tex]Total = \frac{89}{8}[/tex]
[tex]Total = 11\frac{1}{8}\ cups[/tex]
Which set of numbers includes only integers?
Rational Numbers
Integers
Whole Numbers
Answer:
B
Step-by-step explanation:
Integers are like whole numbers, but they can also be negative.
Some examples of integers are -1, 2, 5 etc.
Please help. It's a question on Khan Academy. DON'T SPAM.
Juana is measuring two pyramids whose bases are isosceles right triangles.
Given the height hhh and the volume VVV of the first pyramid, Juana uses the formula
a=\sqrt{\dfrac{6V}{h}}a=
h
6V
a, equals, square root of, start fraction, 6, V, divided by, h, end fraction, end square root
to compute its base's side length aaa to be 111 meter.
The second pyramid has the same height, but has 999 times the volume. What is the side length of its base?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
\sqrt6
6
square root of, 6, end square root meters
(Choice B)
B
333 meters
(Choice C)
C
3\cdot\sqrt63⋅
6
3, dot, square root of, 6, end square root meters
(Choice D)
D
999 meters
Answer:
3 meters
Step-by-step explanation:
Answer:
Choice B
3 meters
Step-by-step explanation:
I just did it on Khan Academy
Find the missing side length. Round to nearest 10th
Answer:
6.3 Use Pythagorean theorem
Step-by-step explanation:
The frequency of a radio wave varies inversely as its wavelength. If a 250-meter wave has a
frequency of 1,200 kilohertz, what is the wavelength of a wave that has a frequency of 6,000
kilohertz? Round your answer to the nearest meter
Answer:
50 m
Step-by-step explanation:
