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Sindrei [870]
2 years ago
12

Which equation represents the solution of the linear equation - 4x + 5 = 9?

Mathematics
2 answers:
Dahasolnce [82]2 years ago
7 0
4x+5=9
4x=9-5
4x=4
Divid both and you get 1 so the answer is x=1
Ludmilka [50]2 years ago
5 0
The answer is C. C=-1

-4(-1)= 4 a negative times a negative is positive
4+5 is 9
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Erika worked 18 hours last week and 20 hours this week. If she earns $6 per hour, how much did she earn these two weeks?
Crank
Hi!

If she worked 18 hours last week and 20 hours this week, then she worked 38 hours in total, because 18 + 20 = 38.

If she earns $6 per hour, and she worked for 38 hours, then she got 38 sets of 6, which you can find the answer to by multiplying 38 and 6.

This is essentially 6 + 6 + 6 +...

38 * 6 = $228

So she earned $228 these two weeks.

Hope this helped!
6 0
3 years ago
Read 2 more answers
Which is the area of a rectangle with a length of 21 feet and a width of 15 feet?
MA_775_DIABLO [31]

Answer:

315

Step-by-step explanation:

Area = Length x Width

Area = 21 x 15

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3 0
3 years ago
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The value -2 is a lower bound for the zeros of the function shown below.
Tju [1.3M]

Answer:

False

Step-by-step explanation:

f(x) = 4x³ - 12x² - x + 15

Set output to 0.

Factor the function.

0 = (x + 1)(2x - 3)(2x - 5)

Set factors equal to 0.

x + 1 = 0

x = -1

2x - 3 = 0

2x = 3

x = 3/2

2x - 5 = 0

2x = 5

x = 5/2

-2 is not a lower bound for the zeros of the function.

7 0
3 years ago
What are the next two numbers 481, 491
Jobisdone [24]

Answer: 501, 511

Step-by-step explanation:

You add ten so 491 plus 10 would 501.

3 0
3 years ago
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The distribution of the heights of students in a large class is roughly Normal. Moreover, the mean height is 68 inches, and appr
Thepotemich [5.8K]

Answer:

Probably equal to 6 or 7.

Step-by-step explanation:

3 0
3 years ago
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