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IRINA_888 [86]
3 years ago
15

Write an expression to represent the sum of three times the square of a number and -7.

Mathematics
1 answer:
Ratling [72]3 years ago
3 0

Answer:

C: -7

Step-by-step explanation:

In 3x^2-7, 3 is the coefficient, x is the variable, and -7 is the constant.

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Find the measure of angle b​
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4 0
1 year ago
Read 2 more answers
Show all work:
DerKrebs [107]

Answer:

m=-3

Step-by-step explanation:

m - 7 = -10

Ok so,

in order to get m by itself you just need to do the opposite of -7 which is +7 so you have to add 7 to both sides. On the left, both of the 7's cancel out and on the right -10 + 7 = -3. So, now it should look like this.

m=-3

To check you just need to plug in -3 into the question

Hope this helps! Have a good day

4 0
3 years ago
What is the surface area of the Triangular Prism rounded to the nearest tenth?
Illusion [34]

Answer:

C. 43.6

Step-by-step explanation:

you need to take the area of each shape

lets do the skinny triangles first on the top and bottom of this shape.

so to find the formula of triangle we need to do 0.5 * 1.26 * 5.3

because the formula of a triangle is half the base times height.

so we get 0.5 * 1.26 * 5.3 = 3.339

multiply it by two and we get 6.678

now lets find the area of the huge rectangle on the back/behind of the shape

3.3*5.3 = 17.49

now lets find the area of the two smaller rectangles

3.3 * 3.6 = 11.88

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now lets add

6.678 + 17.49 + 11.88 + 7.59 = 43.638

round it to 43.6

8 0
2 years ago
Read 2 more answers
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