4 years ago

Name the property of real numbers illustrated by the equation 2x+4y=4y+2x Distributive Property

Mathematics

1 answer:

Stella [2.4K]4 years ago

7 0

It is 12.090i know this because if you multiple and divide then add all the numbers you get 12.090

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Michael bought a shirt with 2/5 of his money. Then he bought a jacket that cost $5 more than the shirt. He spent $105 altogether

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Answer:

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Step-by-step explanation:

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3 years ago

Find the sample size required to achieve the given margin of error with SD = 51.02 and z - score = 1.96. Round your answer to th

coldgirl [10]

Answer:

The sample size required is 2500.

Step-by-step explanation:

z-score:

In function of the margin of error M, the z-score is given by:

$Z = \frac{M}{\frac{\sigma}{\sqrt{n}}} = \frac{M\sqrt{n}}{\sigma}$

In this question, we have that:

$\sigma = 51.02, M = 2, Z = 1.96$

$Z = \frac{M\sqrt{n}}{\sigma}$

$1.96 = \frac{2\sqrt{n}}{51.02}$

$2\sqrt{n} = 51.02*1.96$

$\sqrt{n} = \frac{51.02*1.96}{2}$

$(\sqrt{n})^2 = (\frac{51.02*1.96}{2})^2$

$n = 2500$

The sample size required is 2500.

3 0

3 years ago

X2 – 5x + 6 = 0 solve.

Strike441 [17]

When you factor you get (x-2)(x-3)=0 then x=2 and x=3

4 0

3 years ago

Bobcat Park is a rectangular park with an area of 5 2/5 square miles.Its width is 1 11/25 miles.How long is the park?

ELEN [110]

I believe it is 3.75 miles. 5 2/5=5.4 and 1 11/25=1.44. 5.4/1.44=3.75.

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3 years ago

Determine if the following equation is conditional equation, identity or a contradiction.

kow [346]

Answer:

dont know

Step-by-step explanation:

dont know

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3 years ago