3 years ago

Classify each number below as a rational number or an irrational number.

Mathematics

1 answer:

laiz [17]3 years ago

7 0

You just need to classify the rational number for example 2987

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Can someone help? Show work

yulyashka [42]

Answer:

Step-by-step explanation: $\sqrt{72} = \sqrt{36*2} = 6\sqrt{2}$

answer is 6 for a

8 0

2 years ago

The weights of adobe bricks used for construction are normally distributed with a mean of 3 pounds and a standard deviation of 0

dedylja [7]

Answer: a) 0.8413, b) 0.9987.

Step-by-step explanation:

Since we have given that

Mean = 3 pounds

Standard deviation = 0.25 pounds

n = 28 bricks

So, (a) What is the probability that all the bricks in the sample exceed 2.75 pounds?

$P(X>2.75)\\\\=P(z>\dfrac{2.75-3}{0.25}\\\\=P(z>\dfrac{-0.25}{0.25})\\\\=P(z>-1)\\\\=0.8413$

b) What is the probability that the heaviest brick in the sample exceeds 3.75 pounds?

$P(X>3.75)\\\\=P(z>\dfrac{3.75-3}{0.25})\\\\=P(z>\dfrac{0.75}{0.25})\\\\=P(z>3)\\\\=0.9987$

Hence, a) 0.8413, b) 0.9987.

4 0

3 years ago

PLEASE HELP!!!

ioda

Answer:

$y=-13$

Step-by-step explanation:

We have:

$y=x-4$

And we want to solve for y when x is -9.

So, substitute -9 for x and evaluate:

$y=(-9)-4=-13$

Hence, when x is -9, y is -13.

6 0

3 years ago

If 2(3x+5)=6x+10 is what property

bonufazy [111]

Answer:

2(3x + 5) = 6x + 10

⇔ 6x + 10 = 6x + 10

=> infinite solution

Step-by-step explanation:

5 0

3 years ago

What is -3m2 x -5 x m2

Dmitry [639]

The answer was 15m^4

4 0

3 years ago