3 years ago

4 (2y+y) - 6 (4y+3y)

Mathematics

1 answer:

In-s [12.5K]3 years ago

7 0

I hope I help you out

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4n+ 6 -2n = 2(n + 3) Please help me solve

Paraphin [41]

Answer is provided in the image attached.

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3 years ago

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Refer to the previous exercise. The researchers wanted a sufficiently large sample to be able to estimate the probability of pre

Maru [420]

Answer:

The large sample n = 117.07

Step-by-step explanation:

Step(i):-

Given that the estimate error (M.E) = 0.08

The proportion (p) = 0.75

q =1-p = 1- 0.75 =0.25

Level of significance = 0.05

Z₀.₀₅ = 1.96≅ 2

Step(ii):-

The Marginal error is determined by

M.E = $\frac{Z_{0.05} \sqrt{p(1-p)} }{\sqrt{n} }$

$0.08 = \frac{2 X \sqrt{0.75(1-0.75)} }{\sqrt{n} }$

Cross multiplication , we get

$\sqrt{n} = \frac{2 X \sqrt{0.75(1-0.75)} }{0.08 }$

√n = $\frac{2 X0.4330}{0.08} = 10.825$

squaring on both sides , we get

n = 117.07

Final answer:-

The large sample n = 117.07

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2 years ago

Express -5 1/4 as a decimal

rewona [7]

I believe it would be -5.25

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3 years ago

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Two water tanks are shown. Tank a is a rectangular prism and tank b is a triangular prism. Tank a is filled with water.

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Answer:

6 meters

Step-by-step explanation:

i see it on the picture and yeah and i did the math

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3 years ago

What is the value of x?

Makovka662 [10]

Answer:

A-100

Step-by-step explanation:

Use the Pythagorean therom.

a^2+b^2=c^2

6^2+8^2=c^2

36+64=100.

Hope this helps. Kinda confused me.

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3 years ago