4 years ago

What is the area of a triangle that has a base of 15 1/4 and a height of 18 in

1 answer:

8 0

<h2><em>The answer is 137.25. You can use calculators to find answers. Here is a good one. https://www.omnicalculator.com/math/triangle-area</em></h2>

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Which is f(-1) for the function f(x)= 3x^2+9

blsea [12.9K]

Answer:

C. f(-1) =12

Step-by-step explanation:

f(x)= 3x^2+9

Let x=-1

f(-1) = 3(-1)^2 +9

= 3(1)+9

= 3+9

= 12

f(-1) =12

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3 years ago

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A set of data is normally distributed with a mean of 86 and a standard deviation of 1.5. What percent of the data is in the inte

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Answer:

Hey mate here's your answer ⤵️

Option C

<h2>Hope it was helpfulll</h2>

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3 years ago

Is b. 840,000 or am I wrong? Correct gets BRAINLIEST! :)

bazaltina [42]

Answer: y=4,728,779,608,739,020,800

Step-by-step explanation: based on the values you have for m & b it would be...

y=4,200 x $2^{50}$

y=4,200 x 1,125,899,906,842,624

y=4,728,779,608,739,020,800

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3 years ago

A researcher is interested in determining whether teens who transfer schools after their freshman year in high school demonstrat

Kay [80]

The z-score of the number of teens that transfered schools is the standard score

The obtained value of z is 5

<h3>How to determine the value of z?</h3>

The given parameters are:

Population mean, μ = 50
Population standard deviation, σ = 10
Sample, x = 100
Sample mean = 59

The z-value is calculated using:

z = (x - μ)/σ

Substitute known values in the above formula

z = (100 - 50)/10

Evaluate the difference

z = 50/10

Evaluate the quotient

z = 5

Hence, the obtained value of z is 5