2 years ago

Please can someone help me. It’s not 26, please find X

Mathematics

1 answer:

Ann [662]2 years ago

8 0

I found your exact problem online, I would ask your teacher why the answer is not 26

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Evaluate the formula χ2=<br> (n−1)s2<br> σ2 when σ=3.32, n=38, and s=3.36.

denpristay [2]

Answer:

Step-by-step explanation:

7 0

3 years ago

Elise walks diagonally from one corner of a square plaza to another. Each side of the plaza is 50 meters. What is the diagonal d

jolli1 [7]

Answer:

70.7 meters.

Step-by-step explanation:

We have been given that Elise walks diagonally from one corner of a square plaza to another. Each side of the plaza is 50 meters.

Since we know that diagonal of a square is product of side length of square and $\sqrt{2}$ . So we will find diagonal of our given square plaza by multiplying 50 by $\sqrt{2}$ .

$\text{Diagonal distance across the plaza}=50\times \sqrt{2}$

$\text{Diagonal distance across the plaza}=50\times 1.414213562373095$

$\text{Diagonal distance across the plaza}=70.71067811865475\approx 70.7$

Therefore, diagonal distance across the plaza is 70.7 meters.

8 0

3 years ago

Please help me ASAP! thank you ^-^ As part of a new advertising campaign, a beverage company wants to increase the dimensions of

ipn [44]

Answer:

B 137.32 cm³

Step-by-step explanation:

The original volume is

V = pi r^2 h

V = pi (3)^2 ( 12)

V =108 pi cm^2 = 339.12

the diameter increases by 1.12 6*1.12 = 6.72

r = 6.72 /2 =3.36

The height will increase by 1.12 so 12*1.12

V = pi ( 3.36)^2 ( 13.44)=476.4391834

The difference is

476.4391834 - 339.12 = 137.3191834

To the nearest hundredth

137.32

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3 years ago

A classroom contains an equal number of boys and girls. if 10 girls leave, twice as many boys as girls remain. what was the orig

PolarNik [594]

the answer of this question is 38 and i hope it s correct

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1 year ago