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Cerrena [4.2K]
2 years ago
6

Find the domain and range of the following function f(x) = 31x + 71 - 2?

Mathematics
1 answer:
nadya68 [22]2 years ago
7 0

Answer: hey

Step-by-step explanation:

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Pleases help with 4-9!
Serhud [2]

Step-by-step explanation:

The answer is

4_

m =  \frac{4 - 0}{0 - ( - 2)}  =  \frac{4}{2}  = 2

9_

m =  \frac{3 - 0}{0 - 4}   =  \frac{ - 3}{4}

5 0
2 years ago
The height of a triangle is 4 ft less than the base x. The area is 126 ft2. Find the dimensions of the triangle.
valina [46]

Answer:

Base = x = 18ft

Height = x - 4 = 14ft

Step-by-step explanation:

The formula for the area of A the triangle is given by the following equation:

1) A = (base * heigth)/(2)

From this problem, we know that

base = x and that the height is 4ft less than the base, so height = base - 4 = x - 4.

We also know that the area is 126ft², so A = 126 ft². Now we can replace these informations in equation 1).

126 = (x(x-4))/2

x² - 4x = 252

x² -4x - 252 = 0

The roots of this equation are x = 18 or x = -14. But we know that a triangle cannot have negative dimensions, so we use x = 18.

The base is x, so base = 18ft.

Height is 4ft less than the base, so height equals 18-4 = 14ft

7 0
3 years ago
Solve the following problem: –25 + 37 =
Lerok [7]
1. 12 is your answer

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Solve for u.<br> u – 23 = 5<br> U =
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Answer:

U= 28

Step by step solution

add 23 to both sides

U-23+23=5+23

hence

U=28

3 0
3 years ago
The sales tax rate for the state of Washington was 9.4%. what is the state sales tax on a $3900 car in Washington? What is the f
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Answer:

3900 x.094 = 366.60

366.6+3900=4266.60

5 0
3 years ago
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