3 years ago

What is the area of a triangle that has a base of 15.25 inches and a height of 18 inches

1 answer:

8 0

Formula for area of triangle is Base times height divided by 2 equals Area
Or
B×H÷2=Area so it would be

15.25×18=274.5
Divided by 2 =137.25 inches

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Solve: p+2÷6 -p-3÷3 = p

Xelga [282]

Answer:

p = - $\frac{2}{3}$

Step-by-step explanation:

you have to simplify the left side of the problem first
the 2 p's cancel each other out
now you have to do order of operations

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

2 ÷ 6 = 1/3
-3 ÷ 3 = -1

1/3-1 = p

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3 years ago

An IQ test is designed so that the mean is 100 and the standard deviation is 12 for the population of normal adults. Find the sa

Julli [10]

Answer:

Step-by-step explanation:

Given that IQ mean is 100 and std dev = 12 for normal adults

$Confidence level =90%\\Z critical value = 1.645\\Margin of error = 2\\Margin of error = 1.645* std error =2\\Std error = 1.216$

Std error = $\frac{12}{\sqrt{n} } =1.216$

$n=(\frac{12}{1.216} )^2 =97.38$

i.e. sample size should be atleast 97

The required sample size is 97.

This is reasonable as this is greater than 30

Yes. This number of IQ test scores is a fairly large number.

5 0

3 years ago

Find the distance between the points (-8, -3) and (-2, 5). Hint: Use the Pythagorean theorem.

Drupady [299]

Answer:

1/5

Step-by-step explanation:

Use Pythagoras theorem

5 0

2 years ago

If you add one-third of a number to the number itself, you get 16.what is the number?

GuDViN [60]

The answer to this is 12.

One third of 12 is 4.

12+4=16

Comment if you have ANY questions!

Hope this helps!

7 0

3 years ago

Read 2 more answers

Which of the following lines will have a negative slope? Select all that apply

mariarad [96]

I think it is 1, 4, and 5

6 0

2 years ago