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mestny [16]
3 years ago
10

What is the area of a triangle that has a base of 3 feet and a height of 6 feet?

Mathematics
1 answer:
Nitella [24]3 years ago
3 0

The formula of area of triangle is given by

A= \frac{1}{2} b*h

Where b is the base and h is the height .

In the given question, base ,b = 3 feet

Height, h= 6 feet

Substituting the values of b and h in the formula, we will get

A = \frac{1}{2}*3*6 = 9 ft^2

Correct option is C .

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A dolphin is 1,000 feet below the sea level, it begins ascending at the rate of 20 feet per second. Assume the dolphins continue
Darya [45]
Starts at 1,000feet
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3 years ago
In a large population, 82% of the households have cable tv. A simple random sample of 225 households is to be contacted and the
anzhelika [568]

Answer:

The mean of the sampling distribution of the sample proportions is 0.82 and the standard deviation is 0.0256.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For proportions, the mean is \mu = p and the standard deviation is s = \sqrt{\frac{p(1-p)}{n}}

In this problem, we have that:

p = 0.82, n = 225.

So

\mu = 0.82

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The mean of the sampling distribution of the sample proportions is 0.82 and the standard deviation is 0.0256.

7 0
3 years ago
Read 2 more answers
Please help! A parallelogram has an area of 396 square centimeters and a height of 18 centimeters.
frosja888 [35]
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7 0
3 years ago
Which algebraic expression is represented by the model?
DerKrebs [107]

Answer:

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Step-by-step explanation:

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If you write it in algebraic terms it is 3(2x+2) so the answer when you distribute is 3 (2x) + 3(2) so 6x + 6, and if you count the number of red rectangles you have 6 of them, hence the 6x, and if you cound the units in gray you have 6 of them, hence the 6.

Algebra tiles are used to demonstrate algebra concepts

6 0
3 years ago
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