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wolverine [178]
3 years ago
10

A painting measures 2.4 feet from left to right. It's hung in the center of a rectangular wall measuring 20 feet from left to ri

ght. What is the distance between the right edge of the painting and the right edge of the wall? Assume the painting does not tilt
Mathematics
2 answers:
otez555 [7]3 years ago
5 0
2.1 feet. If you take the middle of the wall it would be 10 feet. Take the 4.2 which equals 4.2,feet on each side.1/2 of the picture is 2.1.
kvv77 [185]3 years ago
4 0
If the painting lies in the middle of the rectangle and half of 20 f is 10  so then half of the painting that is on half of the wall would be only 1.2f if you take 10-1.2= 8.8f your final answer.
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Marysya12 [62]
The function has a maximum at (1, 3).

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You know it is not a minimum because the coefficient of the squared term is negative.

You know the vertex is (1, 3) because you match the pattern to
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3 0
3 years ago
Find the standard deviation of the following data. Round your answer to one decimal place. x 0 1 2 3 4 5 P(X
lbvjy [14]

Answer:

<em></em>\sigma = 1.8<em></em>

<em></em>

Step-by-step explanation:

Given

\begin{array}{ccccccc}x & {0} & {1} & {2} & {3} & {4}& {5} \ \\ P(x) & {0.2} & {0.1} & {0.1} & {0.2} & {0.2}& {0.2} \ \end{array}

Required

The standard deviation

First, calculate the expected value E(x)

E(x) = \sum x * P(x)

So, we have:

E(x) = 0 * 0.2 + 1 * 0.1 + 2 * 0.1 + 3 * 0.2 + 4 * 0.2 + 5  * 0.2

E(x) = 2.7

Next, calculate E(x^2)

E(x^2) = \sum x^2 * P(x)

So, we have:

E(x^2) = 0^2 * 0.2 + 1^2 * 0.1 + 2^2 * 0.1 + 3^2 * 0.2 + 4^2 * 0.2 + 5^2  * 0.2

E(x^2) = 10.5

The standard deviation is:

\sigma = \sqrt{E(x^2) - (E(x))^2}

\sigma = \sqrt{10.5 - 2.7^2}

\sigma = \sqrt{10.5 - 7.29}

\sigma = \sqrt{3.21}

<em></em>\sigma = 1.8<em> --- approximated</em>

5 0
3 years ago
1. What ratio defines tan(M)<br> 2. what ratio defines tan(N)
Tatiana [17]

Answer:28:53 is M

N is 28:45

Step-by-step explanation:

I’m not fully sure just trying to help

6 0
3 years ago
All questions u may have to click the picture
jonny [76]
1. u must simplify 3^2 first because the order of operations states that u have to do exponents before subtraction.

2. 12 - 3^2 = 81......she subtracted the 3 first....12 - 3^2 = 9^2 = 81...which is an incorrect answer

3. u do not divide before simplifying 3^2.....order of operations states that u have to do exponents before division

4. no.....(12 - 3)^2 ......order of operations states that u do parenthesis before exponents...so (12 - 3)^2 = 9^2 = 81
5 0
3 years ago
If a child has blue eyes and both of her parents have brown eyes, what does this tell you about the allele for
nadezda [96]

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Also, put this in the biology section next time.

7 0
3 years ago
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