3 years ago

The length of a side of a square is 32cm find the area

Mathematics

1 answer:

Ugo [173]3 years ago

5 0

Answer:

32² = 1,024 sq cm

Step-by-step explanation:

Area of a square = side squared (all sides have equal length)

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3 years ago

A recent poll of 1500 new home buyers found that 60% hired a moving company to help them move to their new home. Find the margin

Mrac [35]

Answer:

The margin of error M.O.E = 2.5%

Step-by-step explanation:

Given that;

The sample size = 1500

The sample proportion $\hat p$ = 0.60

Confidencce interval = 0.95

The level of significance ∝ = 1 - C.I

= 1 - 0.95

= 0.05

The critical value:

$Z_{\alpha/2} = Z_{0.05/2} \\ \\ Z_{0.025} = 1.96$ (From the z tables)

The margin of error is calculated by using the formula:

$M.O.E = Z_{\alpha/2} \times \sqrt{\dfrac{\hat p(1 -\hat p)}{n}}$

$M.O.E = 1.96 \times \sqrt{\dfrac{\hat 0.60(1 -0.60)}{1500}}$

$M.O.E = 1.96 \times \sqrt{\dfrac{0.24}{1500}}$

$M.O.E = 1.96 \times \sqrt{1.6 \times 10^{-4}}$

M.O.E = 0.02479

M.O.E ≅ 0.025

The margin of error M.O.E = 2.5%

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3 years ago

Please solve this 4 3/4 * 7 2/17 A. 28 B. 32 C. 35 D. 40

Varvara68 [4.7K]

The answer is B. 32
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2 years ago

The length of a side of a square is 32cm find the area​

The length of a side of a square is 32cm find the area