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ryzh [129]
3 years ago
8

The area of the triangle below is __ sq units. A.80 B.21 C.42 D.40

Mathematics
2 answers:
hammer [34]3 years ago
6 0
Hi there!

• Base, b = 16
• Altitude, a = 5

Area of triangle = \dfrac{1}{2} × b × a = \dfrac{1}{2} × 16 × 5 = 40 sq. units.

Hence,
Option D. 40 sq. units is Correct

~ Hope it helps!
lorasvet [3.4K]3 years ago
3 0
Answer
40


The formula to determine the area of the right triangle is a*b/2

First, let’s input the numbers into the formula.

16*5/2

Now we need to solve.

16*5= 80
80/2= 40

Therefore, the answer would be 40.
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Answer:

P(X < 80) = 0.89435.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

\mu = 60, \sigma = 16

P(X < 80)

This is the pvalue of Z when X = 80. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{80 - 60}{16}

Z = 1.25

Z = 1.25 has a pvalue of 0.89435.

So

P(X < 80) = 0.89435.

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