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3 years ago

7(3d + 12) if d=4 I don't know the answer please help.

Mathematics

1 answer:

Anastaziya [24]3 years ago

8 0

Answer:

Its 21+84

Step-by-step explanation:

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I WILL GIVE BRAINLIEST TO WHO EVER TELLS ME THIS ANSWER ASAP

blondinia [14]

it is not because prime factorization is a number broken down by its prime factors

4 x 3 x 20 x 8 x 22 = 42240

the correct prime factorization of 42240 is 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 11

can i have brainliest

4 0

2 years ago

What is the sign of the product (–7)(–2)(–5)(1)?

zubka84 [21]

The product would be negative. Since there are three negative integers, the product would be negative. Two negatives make a positive, but another negative makes the end result negative.

4 0

3 years ago

Read 2 more answers

Please help ASAP I'm very confused

ololo11 [35]

The answer is B. 3 9/20 = 3.45

because if you divide 9 by 20, that gives you 0.45. Then you add a 3.00, which equals

3.45

I hope I helped

4 0

2 years ago

Simplify negative 2 and 1 over 9 – negative 4 and 1 over 3

iren2701 [21]

Ok to start you have to put

2+-1/9 - 4+-1/3

what exactly is the question because without the proper info. nobody is going to be able to figure it out.

5 0

2 years ago

Read 2 more answers

Scores on an exam follow an approximately bell shaped distribution with a mean of 76.4 and a standard deviation of 6.1 points. A

Crazy boy [7]

Answer:

b) 95%

Step-by-step explanation:

We have been given that scores on an approximately bell shaped distribution with a mean of 76.4 and a standard deviation of 6.1 points. We are asked to find the percentage of the data that is between 64.2 points and 88.6 points.

First of all, we will find z-scores of each data point as:

$z=\frac{x-\mu}{\sigma}$

$z=\frac{64.2-76.4}{6.1}$

$z=\frac{-12.2}{6.1}$

$z=-2$

Let us find z-score corresponding to normal score 88.6.

$z=\frac{88.6-76.4}{6.1}$

$z=\frac{12.2}{6.1}$

$z=2$

To find the percentage of the data is between 64.2 points and 88.6 points, we need to find area under a normal distribution curve that lie within two standard deviation of mean.

The empirical rule of normal distribution states that approximately 95% of data points fall within two standard deviation of mean, therefore, option 'b' is the correct choice.

6 0

3 years ago