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raketka [301]
4 years ago
10

Sarah tried to evaluate 21 / 7 * 8 step by step.​

Mathematics
1 answer:
vladimir2022 [97]4 years ago
4 0

Answer:

24.

Step-by-step explanation:

First, use the Order of Operations:

PEMDAS.

First, divide, then multiply to get your solution.

21 / 7 = 3.

3 · 8 = 24.

Therefore, your answer is 24.

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What’s the slope of this equation
Vinvika [58]

Answer:

<em>m</em> = -2

General Formulas and Concepts:

<u>Algebra</u><em><u> </u></em><u>I</u>

Slope-Intercept Form: y = mx + b

  • m - slope
  • b - y-intercept

Step-by-step explanation:

<u>Step 1: Define</u>

Function y = -2x + 5

<u>Step 2: Break Function</u>

Slope <em>m</em> = -2

y-intercept <em>b</em> = 5

5 0
3 years ago
Your company is going to build 4 factories that will use the latest robot technology. One will make prefab buildings, another se
ch4aika [34]

Answer:

a) 230300 ways

b) Check Explanation

Step-by-step explanation:

a) This is a combination problem,

We require how many ways 4 factories be placed among 50 states.

Mathematically, that is

⁵⁰C₄ ways = 230300 ways

b) If you have no idea which states will be chosen, what is the probability that all 4 factories will be located in the mid-Atlantic region.

This can be done in two ways

Method 1

The mid Atlantic region is one of 9 geographic divisions in the US

Probability of 1 factory being located in this geographic region = (1/9)

The probability of the 4 factories being in just this region = (probability of locating one factory in this region)⁴ = (1/9)⁴ = 0.0001524

Method 2

The mid Atlantic region contains only 3 out of 50 states. (New York, New Jersey, Pennsylvania)

Probability of 1 factory being located in one of the 3 stares = (3/50)

Probability of locating all four factories in one of the states in this region = (3/50)⁴ = 0.00001296.

6 0
3 years ago
How does the volume of a sphere compare to that of a cylinder with a height and radius equal to the radius of the sphere?
disa [49]

1) The height of the cylinder is equal to the diameter of the sphere.

3) The radius of the sphere is half the height of the cylinder.

5) The volume of the sphere is two-thirds the volume of the cylinder.

Hope this helped! :)

8 0
3 years ago
Help me please asap
larisa86 [58]

Answer:

i just know you have to use the second equation

Step-by-step explanation:

7 0
3 years ago
Evaluate please I need helppppp
IrinaK [193]

Answer:

-5 sorry if it's wrong. I tried.

5 0
3 years ago
Read 2 more answers
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