Answer:
16
Step-by-step explanation:
(80x20)/100 = 16
(this is wrong, i misunderstood the question)
Which TRANSFORMATION is represented by
this rule? Circle one below:
(x, y) - (x+3, y - 7)
Translation, Rotation, Dilation, or Reflection
I’ll give you 20 points
9514 1404 393
Answer:
Translation
Step-by-step explanation:
When constant values are added to x and/or y, the result is translation.
As part of a study on pulse rates, a random sample of 10 study participants had their pulse rate taken and asked to sit quietly for 5 minutes. At the end of 5 minutes, their pulse rates were taken again. The mean difference between the two pulse rates for the 10 participants is -1.2 beats per minute with standard deviation of 2.97. Researchers are interested in estimating the mean difference in pulse rates before and after the 5 minute waiting period for the population of study participants. Calculate the 90% confidence interval for the mean difference in pulse rates for the population of study participants. Use t*
Answer:
The 90% confidence interval for the mean difference in pulse rates for the population of study participants is between -2.9 beats per minute and 0.5 beats per minute.
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 10 - 1 = 9
90% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 9 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.9}{2} = 0.95[/tex]. So we have T = 1.8331
The margin of error is:
[tex]M = T\frac{s}{\sqrt{n}} = 1.8331\frac{2.97}{\sqrt{10}} = 1.7[/tex]
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is -1.2 - 1.7 = -2.9 beats per minute
The upper end of the interval is the sample mean added to M. So it is -1.2 + 1.7 = 0.5 beats per minute.
The 90% confidence interval for the mean difference in pulse rates for the population of study participants is between -2.9 beats per minute and 0.5 beats per minute.
State whether the equation represents exponential growth, exponential decay, or neither.
y = 11.1.07%
Answer:
Neither
Step-by-step explanation:
This questions only states
[tex]y = 11.1.07\%[/tex]
This is not a fucntion because there is no variable.
This is not a valid statement, because 11.1.07% is non-sensical.
Every day, Eve runs 12 mile more than the day before. Which equation can be used to discover how many miles Eve runs on x days?
y=x+12y is equal to x plus 1 half
y=12xy is equal to 1 half x
y=5xy is equal to 5 x
y=5+xy is equal to 5 plus x
Answer:
B) y=1/2x
Step-by-step explanation:
y=1/2x
A spinner has regions numbered 1 through 18. What is the probability that ___________________
the spinner, spun once, will stop on an even number or a multiple of 3?
Answer:
Probability that the spinner stop on an even number or a multiple of 3 = [tex]\frac{2}{3}[/tex]
Step-by-step explanation:
Given - A spinner has regions numbered 1 through 18.
To find - What is the probability that the spinner, spun once, will stop on an even number or a multiple of 3?
Solution -
Given that,
A spinner has regions numbered 1 through 18.
So,
The sample space, S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18}
i.e.
n(S) = 18
Now,
Let A be the outcomes that gives even number or a multiple of 3,
Then
A = {2, 3, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18}
i.e.
n(A) = 12
∴ we get
Probability that the spinner stop on an even number or a multiple of 3 = [tex]\frac{n(A)}{n(S)}[/tex]
= [tex]\frac{12}{18}[/tex]
= [tex]\frac{2}{3}[/tex]
i.e.
Probability that the spinner stop on an even number or a multiple of 3 = [tex]\frac{2}{3}[/tex]
In this expression: 5x – (12 -6), x is what we called the ....?
Answer:
x is the variable
Step-by-step explanation:
Answer:
Binomial
Step-by-step explanation:
There is two expression
Need help ASAP! See images below
Answer and Step-by-step explanation:
The kite area formula:
A = [tex]\frac{pq}{2}[/tex]
P = Line RP
Q = Line QS
A = [tex]\frac{38 + 16}{2}[/tex] = [tex]\frac{54}{2}[/tex] = 27
27 is the answer.
#teamtrees #PAW (Plant And Water)
What is the measure of missing angle S?
Answer:
60
Step-by-step explanation:
The measure of ∠ATS is 120. The measure of a straight angle is always going to be 180 degrees. So first, we subtract 120 from 180 to find the measure of the interior angle.
∠STR = 180 - 120
= 60
The measure of all the interior angles in the triangle ΔSTR is 180 degrees.
180 - 60 - 60
= 60
The measure of ∠TSR is 60 degrees.
Pls help I need this I’m begging you
Answer:
Option H
Step-by-step explanation:
y = 3x - 4
this is the correct answer.
Answer:
H- y=3x-4
The reason I answered this is because the equations are in slope-intercept format (y=mx+b), the slope(m), is 3. The y intercept(b) is -4. Hope this helped :)
Toll Brothers is a luxury home builder that would like to test the hypothesis that the average size of new homes exceeds 2,400 square feet. A random sample of 36 newly constructed homes had an average of 2,510 square feet with a sample standard deviation of 480 square feet. Conduct a test of hypothesis at a 1% level of significance to see if indeed the average size of new homes exceeds 2,400 square feet.
Answer:
Since the pvalue of the test is 0.09 > 0.01, we do not reject the null hypothesis that the average size of new homes is of 2400 square feet.
Step-by-step explanation:
Toll Brothers is a luxury home builder that would like to test the hypothesis that the average size of new homes exceeds 2,400 square feet. Test to see if the average size of new homes exceeds 2,400 square feet.
At the null hypothesis, we test if the average is of 2400 square feet, that is:
[tex]H_o: \mu = 2400[/tex]
At the alternate hypothesis, we test if the average is greater than 2400 square feet, that is:
[tex]H_a: \mu > 2400[/tex]
The test statistic is:
Since we have the standard deviation for the sample, we use the t-distribution.
[tex]t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, s is the standard deviation of the sample and n is the size of the sample.
2400 is tested at the null hypothesis:
This means that [tex]\mu = 2400[/tex]
A random sample of 36 newly constructed homes had an average of 2,510 square feet with a sample standard deviation of 480 square feet.
This means that [tex]n = 36, X = 2510, s = 480[/tex]
Test statistic:
[tex]t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}[/tex]
[tex]t = \frac{2510 - 2400}{\frac{480}{\sqrt{36}}}[/tex]
[tex]t = 1.375[/tex]
Pvalue of the test and decision:
The pvalue of the test is the probability of finding a sample mean of at least 2510, which is the pvalue of t = 1.375 with 36 - 1 = 35 degrees of freedom, using a one-tailed test.
With the help of a calculator, this pvalue is of 0.09
Since the pvalue of the test is 0.09 > 0.01, we do not reject the null hypothesis that the average size of new homes is of 2400 square feet.
Please need help don't understand please explain
Answer:
Combine like terms for the than you do to other side the multiply last for least you divide both sides
Step-by-step explanation:
Sketch the angle in standard position and draw an arrow representing the correct amount of rotation. Find the measure of two other angles, one positive and one negative, that are coterminal with the given angle and closer to the given angle than any other coterminal angle. Give the quadrant of the angle, if applicable. -90°
The measure of the two angles, one positive and one negative, that are coterminal with -90° and closer to it than any other coterminal angle, is 270° and -450° respectively.
Given that angle is - 90°.
For the coterminal angles that are closer to -90° than any other coterminal angle, consider angles that have the same initial and terminal sides as -90°.
Since -90° is in the fourth quadrant, look for angles that also fall in the fourth quadrant.
One positive coterminal angle in the fourth quadrant would be 270°.
This angle is closer to -90° than any other coterminal angle in the fourth quadrant.
One negative coterminal angle in the fourth quadrant would be -450°.
This angle is also closer to -90° than any other coterminal angle in the fourth quadrant.
So, the measure of the two angles, one positive and one negative, that are coterminal with -90° and closer to it than any other coterminal angle, is 270° and -450° respectively, both in the fourth quadrant.
To learn more about the angle visit:;
https://brainly.com/question/25716982
#SPJ4
If the polynomials p(x)=2x³ +bx² +3x-5 and q(x)= x³+x² -4x-b leave the same remainder, when divided by x-2, prove that b = -13/5.
Step-by-step explanation:
Lets first find the remainder when p(x) is divided by x-2
p(2)=2(2)³+b(2)²+3(2)-5
p(2)=16+4b+6-5
p(2)=4b+17
Now let's find the remainder when q(x) is divided by x-2
q(2)=(2)³+(2)²-4(2)-b
q(2)=8+4-8-b
q(2)=4-b
Now let's equate both of them
4b+17=4-b
4b+b=4-17
5b=-13
b=-13/5 as required
evaluate: a+b/c if a = -6,b = -4 and c= -2
Answer:
5
Step-by-step explanation:
-6+(-4)/-2
-6-4/-2
-10/-2
5
2. 8.SP.1.2
Which line represents the best fit for the scatter
plot data?
10
10
8
8
6
2
2
A.
0
2 4 6 8 10
C. 0
10
10
101
8
8
6
61
4
2
2
B.
0
8 10
D. 0 2 4 6 8 10
Answer:
A
Step-by-step explanation:
A. because the line of best fit has to be at best fit between the points so is a good approximation of where all the points are heading when you try to predict something.
Question 7: I Can Identify the Slope and Y-intercept in an Equation.
Answer:
a) m = 3 b = 1/5
b) y = 1/2x - 3
Step-by-step explanation:
y=mx+b
What’s (3 , 1)reflected over the x-axis
Answer:
(3,-1)
Step-by-step explanation: because all you have to do is reflect it over the x-axis
Find the area and perimeter of the triangle
Answer: 25.2
Step-by-step explanation: hope the is helps :D
-3x-6+(-1)
i will give brainliest !
Answer:
-3x-7
Step-by-step explanation:
Let's simplify step-by-step.
−3x−6−1
=−3x+−6+−1
Combine Like Terms:
=−3x+−6+−1
=(−3x)+(−6+−1)
=−3x+−7
Answer:
=−3x−7
What is XY?
help me please
here x = option c and here y= option a
the price of a sandwich decreases from $8 to $6 what is the percentage decrease in the price of the sandwich
Answer:
The percentage decrease is 25%.
Step-by-step explanation:
The difference in price is $2:
$8 - $6 = $2
Now to find the percentage decrease, we use the formula decrease in price divided by original price (or new/old) times 100:
2/8 * 100.
This equals 200/800 which is 25%.
A man can do 1/2 part of a work in 1 hour 50 minutes. How many
hours and minutes does he take to complete the whole work?
Answer:
3 hours and 40 minutes.
Step-by-step explanation:
To make it easier, we can first convert 1 hour 50 minutes to all minutes. 1 hour is 60 minutes, so it would be 110 minutes.
The problem tells us that 1/2 of the work takes 110 minutes, and we need to find the amount of time it takes to complete the entire work.
1/2 is well, half of a whole. That means it is 50% done, and 50% takes 110 minutes to complete. The other 50% then, would ALSO take 110 minutes, as it is the same. Therefore, since there are two sets of 110 minutes, it would be 110*2, giving us 220 minutes, or 3 hours and 40 minutes.
You and a friend went to Taco Bell for lunch.
You ordered 3 soft tacos and 3 burritos for
$11.25. Your friend ordered 4 soft tacos and
2 burritos for $10. How much do soft tacos cost?
How much do burritos cost
Solve for x
Pls help
Answer:
x=12
Step-by-step explanation:
As a straight line is equal to 180. Here, we have one angle given, which is 134. So,
w+134=180
w=46
And the sum of all the angles of a triangle is equal to 180.
By adding all the angles,
8x-10+5x-12+46=180
13x-22+46=180
13x+24=180
13x=180-24
13x=156
x=156/13
x=12
Step-by-step explanation:
➝8x-10+5x-12=134
➝8x+5x-10-12=134
➝13x-22=134
➝13x=134+22
➝13x=156
➝x=156/13
➝x=12
At the rate of $2.00 per square foot, the cost of painting the rectangular board with a semicircular top shown in the figure is $? Assuming pi = 3.14
I 've been stuck on this for so long can someone please help me out?!
Use the distributive property to write an equivalent expression.
16+32
Hint: find the gcf.
Answer:
2( 4+4) = 16
Step-by-step explanation:
The gcf of 16+32 is 16
The O'Neil family is taking a road trip. Their final destination is more than 243 miles from their house, and so far they have traveled 157 miles. Their
car can travel 21.5 miles on a gallon of gas. Which number line shows the solution set for the number of gallons of gas the O'Neil family needs to
reach their destination?
Answer:
The solution you are looking for is D.)
Step-by-step explanation:
To determine this, we need to find the amount of miles left they need to travel (243 - 157 = 86). Then we can divide that by the amount of miles per gallon (86 / 21.5 = 4). Because a possible solution to the answer is 4, we know that the dot needs to be solid (filled in), and because the solution can be greater than four, the arrow would be directed to the right / positive side of the line.
Will give brainly if right
Answer:
you are correct, it is all of the above
Juan has 40 pieces of paper and it has seven times as many pieces of paper as Juan
Answer:
280
Step-by-step explanation:
someone plz help :(
i'm struggling heree
Answer:
39.96 in²
Step-by-step explanation:
10.8x3.7=39.96
Answer:
19.98
Step-by-step explanation:
area=½×base ×height
½×10.8×3.7
=19.98