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3 years ago

Which choice is equivalent to expresision below?

Mathematics

1 answer:

DIA [1.3K]3 years ago

5 0

We can simplfiy to be $-\sqrt{100}$

$\sqrt{-1} * \sqrt{100}$ .

We know that $\sqrt{100}$ is 10 and $-1$ is i, so the answer is 10i, or D.

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Suppose that IQ scores have a bell-shaped distribution with a mean of 103 and a standard deviation of 15. Using the empirical ru

Lady_Fox [76]

Answer:

Probability = 0.15%

Step-by-step explanation:

The provided information is:

Let X be the scores of the IQ scores that is normally distributed with mean $\mu = 103$ and standard deviation

That is $X \sim N(103,15)$

$103 - 58 = 45 = 3 \times 15$

So, 58 is 3 standard deviation left to the mean.

As 99.7% of probability lies within the three standard deviation.

Thus, above three standard deviation is:

$\frac{1-0.997}{2}=0.0015$

Thus, the required probability is 0.15%

8 0

4 years ago

How to turn 1/4÷9/10 into a mixed fractions

sashaice [31]

First, change the division sign to multiplication, and flip the second fraction

(1/4)/(9/10) = 1/4 x 10/9

1/4 x 10/9 = 10/36

10/36 is your answer, and there is not enough in the numerator to change into an mixed fraction.

hope this helps

7 0

4 years ago

pls help me answer these questions you can do as much as you can!! if correct I'll make Brainliest!!

AnnZ [28]

Answer:

1:red

2:green

hope this helps

5 0

3 years ago

Sam bought 4 candy bars at 1.23 each. How many did Sam spend all together

podryga [215]

Answer: $4.92

Step-by-step explanation: If Sam had 4 candy bars and they cost $1.23, you multiply 4 by 1.23 to get $4.92—The total amount that Sam spent

Hope this helps:)

3 0

3 years ago

Read 2 more answers

Eli buys milk and lemons at the store.

aniked [119]

Answer:

$6.32

Step-by-step explanation:

m + L = total $

6.35 + 7L = 50.59

7L = 44.24

L = 6.32

6 0

3 years ago