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3 years ago

What is the product? 3 x [1 -4 5 -7]

Mathematics

1 answer:

Roman55 [17]3 years ago

6 0

This looks like scalar matrix multiplication. The idea here is to multiply the scalar 3 by each item inside the matrix.

Doing so leads to the answer [3 -12 15 -21]

Side note: I'm assuming the matrix given to you has 1 row and 4 columns.

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How do I solve this literal equation? <br> 15 points

kati45 [8]

Answer:

$\pi = \frac{A}{2r^2 + 2rh}$

Step-by-step explanation:

First, we need to isolate $\pi$ by taking it common from both terms on the right:

$A=2\pi r^2 + 2\pi rh\\A=\pi (2r^2 + 2rh)$

Now, since we want $\pi$ in terms of the other variables, we can divide the left hand side (A) by whatever is multiplied with $\pi$ on the right hand side. Then we will have an expression for $\pi$ . Shown below:

$A=\pi (2r^2 + 2rh)\\\pi = \frac{A}{2r^2 + 2rh}$

This is the xpression for $\pi$

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3 years ago

In long division what is 601 divided by 3

horrorfan [7]

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3 years ago

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Ber [7]

The answer should be:
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2 years ago

Read 2 more answers

A large manufacturing firm tests job applicants who recently graduated from college. The test scores are normally distributed wi

anzhelika [568]

Answer:

lowest score a college graduate must earn to qualify for a responsible position is 578

correct option is D. 578

Step-by-step explanation:

given data

mean = 500

standard deviation = 50

distribution = 6 %

to find out

What is the lowest score a college graduate must earn to qualify for a responsible position

solution

we know that here Probability P that is express as

P ( Z > x ) = 100% - 6% .....................1

so with the help of normal table

here value of Z is = 1.55 from cumulative probability 0.94

so by z score formula here x will be

x = z × standard deviation + mean ................2

so put here value

x = 1.55 × 50 + 500

x = 577.7387 ~ 578

so lowest score a college graduate must earn to qualify for a responsible position is 578

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3 years ago

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Aleonysh [2.5K]

Answer:

Step-by-step explanation:

You set up cross multiplication 3/4 x 9/x, you go 4x9=36 divided by 3 equals 12

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2 years ago