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2 years ago

Evaluate the function.

Mathematics

2 answers:

wolverine [178]2 years ago

7 0

Answer:

-87

Step-by-step explanation:

-(-7^2) + 6(-7) + 4

-49 -42 + 4

-87

andreyandreev [35.5K]2 years ago

5 0

Answer:

f(-7) = -3

Step-by-step explanation:

The exponentiation x^2 must be done before multiplication by the coefficient -1.

Substituting -7 for x, we get:

-(-7)^2 + 6(-7) + 4 = f(-7)

Then f(-7) = -49 + 42 + 4, or

f(-7) = -3

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2 years ago

A model train is built to a 1 in. : 64 in. scale. Find the actual length for a peice on the model that is 0.75 in.

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2 years ago

I need answer Immediately!!!!!!!

Dennis_Churaev [7]

Answer:

y= 5x - 3

Step-by-step explanation:

For the slope, use this formula (y2 - y1) / (x2 - x1)

I used (1,2) and (2,7) from the chart

plug 7 for y2, and 2 for x2

then plug 2 for y1, and 1 for x1

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3 years ago

Place each algebraic expressions next to its corresponding verbal description

Nastasia [14]

(a) the difference of 5 times the cube of x cubed and the quotient of 4 times x and 3

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he quotient of 4 times x and 3 is $\frac{4x}{3}$

The difference is $5x^3$ - $\frac{4x}{3}$

(b) 5 times the cube of x divided by 4 times x

5 x^3 divide by 4x. So expression is $\frac{5x^3}{4x}$

the difference of 5 times x cubed and 4 is $5x^3-4$

The quotient of $5x^3-4$ and x is $\frac{5x^3-4}{x}$

(d) the cube of the difference 5 times x and 4

difference 5 times x and 5 is 5x -4

the cube of (5x-4) is $(5x-4)^3$

4 0

3 years ago

Read 2 more answers