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lesantik [10]
3 years ago
12

Hey:) please help me on this one: Evaluate the function f(x) = 0.4x^2 - 3x - 8 for the value x = -2​

Mathematics
1 answer:
Ksivusya [100]3 years ago
8 0

Answer:

Step-by-step explanation:

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Write the equation of the line that passes through the given points (0,-4) and (-7,-10
Anettt [7]

Answer:

14/-7

Step-by-step explanation:

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A

Step-by-step explanation:

First you find the volume of the cube which is 512. Then you find the volume of the cone which is 133.97333333 and so on. Lastly you subtract 512 by 133.973333333 (and so on) which is 378.026667. Rounded the answer would be 378.0 which is answer A.

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2 years ago
What is the difference <br> A <br> B<br> C<br> D
aksik [14]

Answer:

D. \frac{x-1}{x^2+3x+2}}

Step-by-step explanation:

The given expression is;

\frac{x}{x^2+3x+2}-\frac{1}{(x+2)(x+1)}

This is the same as;

\frac{x}{(x+2)(x+1)}-\frac{1}{(x+2)(x+1)}

The denominators are the same.

Subtract the numerators and write one denominator;

\frac{x-1}{(x+2)(x+1)}}

Rewrite to get;

\frac{x-1}{x^2+3x+2}}

4 0
3 years ago
3x-2y=14 <br> y=5x<br><br> Solve by substitution
irina [24]
3x - 10x = 14

-7x = 14

x = -2
5 0
3 years ago
How do you get 40y from the difference of 2 squares with the problem (5y+4+3x)(5y+4-3x)? I understand distribution method. I don
otez555 [7]

Answer:

Step-by-step explanation:

(5y+4+3x)(5y+4-3x) = (5y+4)² - (3x)²......(from the difference of 2 squares )

by identity : (a+b)(a-b) = a² - b²

in this exercice ; a = 5y+4 and b  = 3x

3 0
2 years ago
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