All categories

3 years ago

I dont get this but help pls

Mathematics

1 answer:

jekas [21]3 years ago

7 0

The correct answer is 37.5.

You might be interested in

In an all boys school, the heights of the student body are normally distributed with a mean of 70 inches and a standard deviatio

almond37 [142]

Answer:

0.010

Step-by-step explanation:

We solve the above question using z score formula

z = (x-μ)/σ, where

x is the raw score = 63 inches

μ is the population mean = 70 inches

σ is the population standard deviation = 3 inches

For x shorter than 63 inches = x < 63

Z score = x - μ/σ

= 63 - 70/3

= -2.33333

Probability value from Z-Table:

P(x<63) = 0.0098153

Approximately to the nearest thousandth = 0.010

Therefore, the probability that a randomly selected student will be shorter than 63 inches tall, to the nearest thousandth is 0.010.

3 0

2 years ago

-4/9x=16/27 alguien que me ayude

Andre45 [30]

<h3>Answer</h3>

First multiply everything by 27

$- \frac{4}{9} x = \frac{16}{27} = \\ 27 \times ( - \frac{4 }{9}x) = 27 \times \frac{16}{27}$

Then approximate the terms with 27 if it's possible (27 and 9) (27 and 27)

$3 \times ( - \frac{4}{1} ) = 16$

So now multiply again

$3 \times ( - 4) = - 12$

And you have

$- 12x = 16$

$x = - \frac{16}{12} = - \frac{4}{3}$

You're welcome if it's right

4 0

3 years ago

what is the surface area of this rectangular prism.Enter your answer in the box.A rectangular prism with dimensions 6 meters by

Molodets [167]

Answer:

Step-by-step explanation:

so first you have to do the formula then it would give you the answer

3 0

3 years ago

In ΔPQR, what is the m∠Q? Enter your answer in the box.

Orlov [11]

Answer:

105°

Step-by-step explanation:

11x-5 + 6x+5 + x = 180

18x = 180

x = 10

m∠Q = 11(10)-5 = 110-5 = 105°

8 0

3 years ago

I need some help I’ve been on this question for over 10 minutes

krek1111 [17]

Answer:

The answer is 6 wholes and 7/8ths.

7 0

2 years ago