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3 years ago

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What is the area of the parallelogram (a) 168s sq inches b) 140 sq inches c) 130 sq inches d) 120 sq inches

1 answer:

irina [24]3 years ago

4 0

Answer:

Step-by-step explanation:

Area of a parallelogram is given as the multiplication of its length by that of its height or breadth, however you call it.

In this question, you didn't state the length nor the breadth or height. You just listed the answers. It's very hard knowing the answer without having its dimensions. However, I can tell you that on the diagram or drawing you have there with you, multiply the two distance given to you together, it ought to give you one of the four options you listed above. Be it 168, 140, 130 or even 120 square inches.

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A random sample of 100 people was taken. Eighty of the people in the sample favored Candidate A. We are interested in determinin

riadik2000 [5.3K]

Answer:

Option b - not significantly greater than 75%.

Step-by-step explanation:

A random sample of 100 people was taken i.e. n=100

Eighty of the people in the sample favored Candidate i.e. x=80

We have used single sample proportion test,

$p=\frac{x}{n}$

$p=\frac{80}{100}$

$p=0.8$

Now we define hypothesis,

Null hypothesis $H_0$ : candidate A is significantly greater than 75%.

Alternative hypothesis $H_1$ : candidate A is not significantly greater than 75%.

Level of significance $\alpha=0.05$

Applying test statistic Z -proportion,

$Z=\frac{\widehat{p}-p_0}{\sqrt{\frac{p_0(1-p_0)}{n}}}$

Where, $\widehat{p}=80\%=0.80$ and $p=75%=0.75$

Substitute the values,

$Z=\frac{0.80-0.75}{\sqrt{\frac{0.75(1-0.75)}{100}}}$

$Z=\frac{0.80-0.75}{\sqrt{\frac{0.1875}{100}}}$

$Z=\frac{0.05}{0.0433}$

$Z=1.1547$

The p-value is

$P(Z>1.1547)=1-P(Z$

$P(Z>1.1547)=1-0.8789$

$P(Z>1.1547)=0.1241$

Now, the p-value is greater than the 0.05.

So we fail to reject the null hypothesis and conclude that the A is not significantly greater than 75%.

Therefore, Option b is correct.

7 0

3 years ago

I need help how many cubic feet of water will fill a rectangular pool that is 50feet wide, 75 feet long, and 8feet deep

tresset_1 [31]

The correct answer is b that’s the right choice

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Answer: 25 hours

Step-by-step explanation:

$t=1+3x$

8 screens

or

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Replace;

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$t=1+24$

$t=25h$

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2 years ago

If p and q vary inversely and p is 10 when q is 19 , determine q when p is equal to 2

GenaCL600 [577]

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3 years ago

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1. Five gallons of lemonade cost $8.00, which is<br> a rate of _____per____.

Hitman42 [59]

Answer:

1. $1.60

2. gallon

Step-by-step explanation:

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3 years ago

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