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3 years ago

The perimeter of a square is 52 cm.Calculate the area of the square.

Mathematics

2 answers:

slega [8]3 years ago

6 0

Answer:

A = 169cm²

Step-by-step explanation:

topjm [15]3 years ago

5 0

Answer:

A=169cm²

A=26.2in²

A=0.18ft²

Step-by-step explanation:

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3 years ago

8 is what percent of 64?

pav-90 [236]

Answer:

12.5%

Step-by-step explanation:

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3 years ago

insurance company checks police records on 559 accidents selected at random and notes that teenagers were at the wheel in 91 of

ss7ja [257]

Answer: $(13.22\%,\ 19.34\%)$

Step-by-step explanation:

Given : Sample space : n= 559

Sample proportion : $\hat{p}=\dfrac{91}{559}=0.162790697674\approx0.1628$

$=16.28\%$

Significance level : $\alpha= 1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

Confidence level for population proportion:-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.1628\pm (1.96)\sqrt{\dfrac{0.1628(1-0.1628)}{559}}\\\\=0.1628\pm0.030604971367\\\\\approx 0.1628\pm0.0306=(0.1322,\ 0.1934)=(13.22\%,\ 19.34\%)$

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7 0

3 years ago

Which expression is equivalent

RUDIKE [14]

Given expression is

$\sqrt[4]{\frac{16x^{11}y^8}{81x^7y^6}}$

Radical is fourth root

first we simplify the terms inside the radical

$\frac{x^{11}}{x^7}=x^4$

$\frac{y^(8)}{y^6}=y^2$

So the expression becomes

$\sqrt[4]{\frac{16x^4y^2}{81}}$

Now we take fourth root

$\sqrt[4]{16} = 2$

$\sqrt[4]{81} = 3$

$\sqrt[4]{x^4} = x$

We cannot simplify fourth root (y^2)

After simplification , expression becomes

$\frac{2x\sqrt[4]{y^2}}{3}$

Answer is option B

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3 years ago

Here is an easy one. Do you knowwww

Gnesinka [82]

Answer:

its a,b,c, or d

Step-by-step explanation:

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3 years ago

The perimeter of a square is 52 cm.Calculate the area of the square.​

The perimeter of a square is 52 cm.Calculate the area of the square.