Answers
Answer:
Hello Love! Answer: 1, 2
Step-by-step explanation:
dilating by 1/2 is just a fancy way of saying divide the coordinates by 2 so 2÷2 = 1 and 4 ÷ 2 = 2
Hope this helps! Was doing this is math this week!
Related Questions
A company has a new process for manufacturing large artificial sapphires. In a trial run, 37 sapphires are produced. The mean weight for these 37 gems is 6.75 carats, and the sample standard deviation is 0.33 carat. Obtain a 95% confidence interval for the true mean weight of all sapphires produced by the new process. Interpret your results in the context of the problem. State the margin of er
Answers
Answer:
The margin of error is of 0.11 carats.
The 95% confidence interval for the true mean weight of all sapphires produced by the new process is between 6.64 and 6.86 carats. The interpretation is that we are 95% sure that the true weight of all sapphires produced by the company using the new process is between these two values.
Step-by-step explanation:
We have the standard deviation for the sample, which means that we use the t-distribution 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 = 37 - 1 = 36
95% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 36 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.05}{2} = 0.975[/tex]. So we have T = 2.0281
The margin of error is:
[tex]M = T\frac{s}{\sqrt{n}} = 2.0281\frac{0.33}{\sqrt{37}} = 0.11[/tex]
In which s is the standard deviation of the sample and n is the size of the sample.
The margin of error is of 0.11 carats.
The lower end of the interval is the sample mean subtracted by M. So it is 6.75 - 0.11 = 6.64 carats
The upper end of the interval is the sample mean added to M. So it is 6.75 + 0.11 = 6.86 carats.
The 95% confidence interval for the true mean weight of all sapphires produced by the new process is between 6.64 and 6.86 carats. The interpretation is that we are 95% sure that the true weight of all sapphires produced by the company using the new process is between these two values.
Could someone please do this for me ASAP this is for math!
Answers
Answer:
Step-by-step explanation:
[tex]x^{2}[/tex]+x-20
use FOIL
(x - 4)(x+5)
x-4=0
x+5=0
4 and negative 5 are the factors
Barbara was asked to create a set of numbers that contained only natural numbers. Which of the sets
does NOT contain only natural numbers?
24
А
{31, 15, 23, 4, 300,
20
B
19, 100, 4, 12, 6,
c {5, 3, 8, 14, 0,
1, 21
D 22, 7, 9, 11, 28, 4.0)
Answers
Answer:
D
Step-by-s:
Ya que el 4.0 no es un número natural, es un número decimal (Z - número entero).
Since 4.0 is not a natural number, it is a decimal number (Z - whole number).
7th grade math
The sales tax on an item is 6.5%. The total cost of the item is the price, p, plus the tax. Which expression represents the total cost?
A. 0.935p B. p + 1.065p C. 1.065p D. p + 6.5p
Answers
Answer:
B
Step-by-step explanation:
You add tax to the price not multiply
Answer:1.065p
Step-by-step explanation:
e^2=36. solve for e
e = ± ( )
Answers
Answer:
solution given:
e^2=36
e=±√36=±6 is your answer
Can you help me solve this it’s pretty easy but for you guys
Answers
Answer:
x - 81 = 321
adding 81 on both sides
x-81+81= 321+81
x= 402
Answer:
402
Step-by-step explanation:
81+321=402-321=81 n=402
) Jolie draws a map of her neighborhood on a
coordinate plane. She draws her house at a point in
Quadrant II.
OU
Select all the points that could represent the location of
Jolie's house?
a.) (0,5)
b.) (1, -4)
c.) (-2, 0)
d.) (-4.71
Pls help and explain if you can
Answers
Ο Α.
B.
C.
D.
SUBMIT
Plzzzz helpppp
Answers
Answer:
c
Step-by-step explanation:
Wesley walked 11 miles in 4
hours.
If he walked the same distance every hour,
how far did he walk in one hour?
Write your answer:
Using a whole number of miles and a whole number of feet
Answers
Answer:
3 miles
58080 feet
Step-by-step explanation:
Can some one please help me and explain how you got the answer?
Answers
Answer:
Yes number 5 is, they are proportional because y is coresponding to x by multiplying by 1/5
No number 6 isn't, you can't go from 3 to 1 and 7 to 3
Answer:
5. Proportional & 6. Not Proportional
Step-by-step explanation:
Proportional relationships = x and y increase at the same rate
5. all increases by x2
6. increases at different rates
Create two equivalent fractons for 3/4
Answers
Answer:
6/8 and 9/12
Step-by-step explanation:
You can find any by multiplying numerator and denominator by any given number. The number multiplied has to be the same for the top and the bottom
1. Number is 2
3/4 * 2/2 = 6/8 (3*2 = 6 and 4*2 = 8)
2. Number is 3
3/4*3/3 = 9/12 (3*3 = 9 and 3*4 = 12)
She mixes nuts, raisins and oats in the ratio 3:2:5 by weight. Babajan uses 60 grams of nuts. Work out the weight of raisins she uses to make the breakfast cereal
Answers
Answer:
weight of raisins : 40
Step-by-step explanation:
nuts : raisins : oats
3:2:5= 60: ? : ?
60÷3 = 20
raisins : 2×20 = 40
THE FUNCTION! f(x) = x^2+4 is defined over the interval (-2,2). If the interval is dived into n equal parts what is the height of the right endpoint of the kth rectangle?
Answers
f(x) = x^2+4 is defined over the interval (-2,2). If the interval is dived into n equal parts the height of the right endpoint of the kth rectangle is mathematically given as
H endpoint = -2+k x5/n. Option A is correct
what is the height of the right endpoint of the kth rectangle?
Generally, the equation for the function is mathematically given as
f(x) = x^2+4
interval is divided = 5/n
endpoint =k x 5/n
therefore,
H endpoint = -2+k x5/n
In conclusion, the height of the right endpoint of the kth rectangle is
H endpoint = -2+k x5/n
Read more about rectangle
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The multiplicative inverse of -2¹/₇ is
Answers
The multiplicative inverse of a number is the reciprocal of that number. Since
-2 1/7 *(-7/15)= 1, then -7/15 is the multiplicative inverse of -2 1/7.
The center of a circle is at (–4, 2) and its radius is 9.
What is the equation of the circle?
(x−4)2+(y+2)2=3
(x+4)2+(y−2)2=3
(x−4)2+(y+2)2=9
(x+4)2+(y−2)2=9
(x−4)2+(y+2)2=81
(x+4)2+(y−2)2=81
Answers
Answer: fourth choice
Step-by-step explanation:
Answer:
formula for circle is
(x-h)^2+(y-k)^2=r^2
so the answer is sixth
what is the surface area
Answers
Answer:
Step-by-step explanation:
total surface area=3×(1/2×10×6.7)+1/2×10×8.7=3×(33.5)+43.5
=100.5+43.5
=144
f(x)=2x^ 2 +9x Find f(10)
Answers
f(10) = 2*10^2 + 9*10
= 2*100 + 90
= 200 + 90
= 290
A ship takes 5 hours to sail 75 kilometrs. What is its
speed?
Answers
A ship takes 5 hours to sail 75 kilometres. What is its speed ?
Answer:-Given:-Distance = 75 kilometres.
Time = 5 hours.
To Find:-It's speed.
Solution:-We know,
[tex] { \boxed{\bf{\rm \red {Speed \: = \frac{Distance}{Time}}}}} [/tex]
So, Speed = [tex] \bf \frac{75}{5} [/tex]
Speed = [tex] \bf 15 [/tex]
It's speed is 15 km/hr. [Answer]Step-by-step explanation:
[tex] \: \: here \: is \: your \: solution \\ \\ distance \: covered \: by \: ship \: = 75km \\ \\ time \: taken \: by \: by \: ship \: = 5hrs \\ \\ speed \: of \: ship = distance \div time \\ speed \: = 75/5 \\ \\ speed \: = 15km/hr \\ \\ hope \: it \: helps[/tex]
2. [5pts] The Pew Research Group conducted a poll in which they asked, "Are you in favor of, or opposed to, executing persons as a general policy when the crime committed while under the age of 18?" Of the 580 Catholics surveyed, 180 indicated they favored capital punishment; of the 600 seculars surveyed, 238 favored capital punishment. Is there a significant difference in the proportion of individuals in these groups in favor of capital punishment for persons under the age of 18? Use the ???? = 0.01 level of significance. Show all work.
Answers
Answer:
See below for answers and explanations
Step-by-step explanation:
Here, we are comparing two proportions of a large sample size. Therefore, conducting a 2-proportion z-test is appropriate. Conditions are already assumed, so we can conduct the test.
We are testing our null and alternate hypotheses which are:
H: p1=p2 (there is no difference)
Ha: p1≠p2 (there is a difference)
Given:
x1=180
n1=580
x2=238
n2=600
p1=180/580=0.31
p2=238/600=0.4
p=(180+238)/(580+600)=418/1180=0.35
Use the formula to calculate the z-statistic:
[tex]Z=\frac{p_1-p_2}{\sqrt{p(1-p)(\frac{1}{n_1}+\frac{1}{n_2})}}[/tex]
[tex]Z=\frac{0.31-0.4}{\sqrt{0.35(1-0.35)(\frac{1}{580}+\frac{1}{600})}}[/tex]
[tex]Z=-3.24[/tex]
Calculate p-value (note that this is two-sided):
1) normalcdf(-1e99,-3.24)=5.977105194*10^-4
2) Since this is a two-sided test, we double it to get p=0.001195421
Conclusion: Since 0.0012<0.05, we reject the null hypothesis and conclude that there is a significant difference in the proportion of individuals in these groups in favor of capital punishment for persons under the age of 18 because our p-value is extremely low.
For every 2 hours, approximately $1,186 worth of product is sold to consumers. How much money will the company for an entire month (30 days)?
Answers
I believe that the answer is $426,960.
I hope this helps!
A lawyer has 4 clients to meet. In how many different ways can he make
his rounds if he meets each client once?
Answers
Answer:24
Step-by-step explanation: 4x3x2x1
The product of a whole number 'n' with every whole number until 1 is called the factorial. The number of ways the lawyer can meet the client is 24 or 4!.
What is a factorial?The product of a whole number 'n' with every whole number until 1 is called the factorial. The factorial of 4 is, for example, 43221, which equals 24.
A lawyer has 4 clients to meet. The number of ways the lawyer can meet the client is 4!.
Number of ways = 4! = 4×3×2×1 = 24
Hence, the number of ways the lawyer can meet the client is 24 or 4!.
Learn more about Factorial:
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Find the 9th term of the geometric sequence 10, 40, 160,
ANSWER ASAP 50 points
Answers
Step-by-step explanation:
[tex]U _{ {9}^{th} } \: term = U _{ {1}^{st} } {r}^{(n - 1)} \\ = 10 \times {4}^{(9 - 1)} \\ = 655360 \\ {9}^{th} \: term \: is \: 655360[/tex]
please say this question answer please
Answers
Answer:
4
Step-by-step explanation:
Its 4 because x= 4
Evaluate 12 ÷ 2 × 6.
Answers
12 over 2 x 6
= 6 x 6
= 36
Answer:
[tex]36[/tex]
Step-by-step explanation:
1) Simplify 12 ÷ 2 to 6.
[tex]6 \times 6[/tex]
2) Simplify.
[tex]36[/tex]
therefor, the answer is 36.
Answers of these two questions??
Answers
Answer:
1:second ans
2:fourth ans!
Step-by-step explanation:
brainlist
Find area using law of sines
Answers
Answer:
4
Step-by-step explanation:
HOPE THIS HELPED!!! I TRIED AND REMEMBERED
if anyone could help me it would helpful :)!!!
Answers
Answer:
the answer is 74 like the other corner
Answer: C. 74
Step-by-step explanation: This is an isosceles trapezoid based on the diagram showing that the two legs are equal. By theorem 53 which states that "Base angles of an isosceles trapezoid are equal." angle TWV would have to be equal to angle UTW.
how to write 970 014 in words
Answers
have a great day! <3
JKLM is a rectangle. Find the value of x.
Help me fast please
Answers
Answer:
x = 10
Step-by-step explanation:
3x + 38 = 7x - 2
subtract 3x from both sides ogf the equation:
38 = 4x - 2
add 2 to each side:
40 = 4x
divide both sides by 4:
x = 10
6789 divided by 89.65
Answers
Step-by-step explanation:
75 . 727 is your answer
hope it is helpful to you