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Jobisdone [24]
3 years ago
9

Which expression is equivalent to 13-(-21)

Mathematics
1 answer:
pantera1 [17]3 years ago
4 0

Answer:

34 my dear. :)))))))))

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Solve for x: 2x/5=12/8
Anika [276]

Answer:

x = 3\frac{3}{4}

Step-by-step explanation:

First, you have to leave 2x by itself on the left side of the equation:

2x = 60/8

Then divide,

x = 15/4

Simplified fraction: x = 3\frac{3}{4}

5 0
3 years ago
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What the slope and y intercept ? and how did you find it ?
EastWind [94]

Answer:

Slope: m=4

y-intercept: b=-1

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

y=mx+b

Where "m" is the slope and "b" is the y-intercept.

The slope can be found with the following formula:

m=\frac{y_2-y_1}{x_2-x_1}

In this case you can say that:

y_2=-5\\y_1=11\\\\x_2=-1\\x_1=3

Knowing this values you can substitute them into the formula and then evaluate, in order to find the slope. This is:

m=\frac{-5-11}{-1-3}\\\\m=\frac{-16}{-4}\\\\m=4

By definition, the line intersects the y-axis when the value of "x" is 0.

Notice in the table that when x=0, y=-1

Therefore, the y-intercept is:

b=-1

7 0
3 years ago
A metal strip is being installed around a workbench that is 5 feet long and 3 feet wide. Find how much stripping is needed.
Ksivusya [100]
<span>The workbench represents a rectangle with two sides 5 feet long each and two sides 3 feet wide each. The perimeter of said rectangle is the sum of the four sides or 5 + 5 + 3 + 3 for a total of 16 feet. therefore the amount of metal tape required is 16 feet.</span>
6 0
3 years ago
You invest $5,000 in a savings account paying 4% interest compounded quarterly. How much is in the account after 5 years if ther
Hitman42 [59]
1 years is $5200
2 years is $5408
3 years is $5624.32
4 years is $5849.29
5 years is $6083.26
3 0
3 years ago
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The average car decreases in value by about 15% per year. If a car's original value is $28,000, which function best represents i
andrey2020 [161]

Answer:

D

Step-by-step explanation:

D

6 0
3 years ago
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