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statuscvo [17]
3 years ago
13

When X=18, Y=14. Find the value of x when y=42. A) 32 B) 18 C) -18 D) 54

Mathematics
1 answer:
Karolina [17]3 years ago
4 0

Answer:

D)54

Explanation:

hope this helps you...

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As you were organizing your closet you counted 20 shirts and 12 pairs of pants what was the pants to shirt ratio?
NISA [10]

Answer: 5 : 3

Step-by-step explanation:

The ratio of shirts to pants can be shown by putting the number if shirts and pants in the following manner:

Number of shirts       :        Number of pants

20                               :                   12

Then you have to take this to the lowest term. 4 is a factor of both numbers so when divided by 4 we get:

= 5 : 3

This is the ratio.

4 0
3 years ago
Suppose you take an SRS of size 1000 of Connecticut students eligible to take the SAT and find that 85% plan to take the SAT dur
nadezda [96]

Answer:

\mu_{p}=p=0.81

Step-by-step explanation:

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

So under the null hypothesis the mean for the population proportion is p

\mu_{p}=p=0.81

And the standard deviationis given by:

\sigma_{p}=\sqrt{\frac{p_0(1-p_o)}{n}}=\sqrt{\frac{0.81(1-0.81)}{1000}}=0.0124

7 0
4 years ago
Find an equation of the line with an undefined slope and passes through the point (3, -4).
Hatshy [7]
Undefined means it goes through the x intercept, x=3
6 0
3 years ago
If r(x) = 2 – x2 and w(x) = x – 2, what is the range of w(r(x))
Paladinen [302]
Range is the outputs possible
w(r(x))=(2-x^2)-2
w(r(x))=2-x^2-2
w(r(x))=-x^2

therefor the range is from 0 to -∞
5 0
3 years ago
Read 2 more answers
Radius of the circle is 8cm, find the volume and surface area
nasty-shy [4]

Answer:

am not sure but I think the answer is79.02

4 0
3 years ago
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