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Ierofanga [76]
3 years ago
12

If f(x) = 1/2x^3 + 2x, find f(-2).

Mathematics
2 answers:
Nady [450]3 years ago
8 0

Answer:

Evaluate the function.

− 8

Step-by-step explanation:

Jet001 [13]3 years ago
8 0

Answer:

Step-by-step explanation:

f(x)=1/2x³+2x

find f(-2)

f(-2)=1/2(-2)³+2(-2)

f(-2)=1/2*(-8)-4

f(-2)=-4-4

f(-2)=-8

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loris [4]
(goh) = 2(x^1/2)-1
(goh)(9) = 2(9^1/2)-1
= 2(3)-1
= 6-1
= 5
(goh)(9) = 5
5 0
3 years ago
Read 2 more answers
Zoe had 3 1 /8 feet of orange ribbon. She used some ribbon to make a bow for a gift now she has 1 3 /8 feet of orange ribbon lef
Nastasia [14]

Answer:

Orange ribbon Zoe use is  1\frac{3}{4} \ feet.

Step-by-step explanation:

Given:

Zoe had 3 1 /8 feet of orange ribbon. She used some ribbon to make a bow for a gift now she has 1 3 /8 feet of orange ribbon left.

Now, to find the orange ribbon Zoe use.

Let the orange ribbon Zoe use be x.

Total orange ribbon Zoe had = 3\frac{1}{8} = \frac{25}{8} \ feet.

Ribbon Zoe had left = 1\frac{3}{8} =\frac{11}{8} \ feet.

Now, to get the orange ribbon Zoe use:

\frac{25}{8} -x=\frac{11}{8}

<em>Subtracting both sides by </em>\frac{11}{8}<em> we get:</em>

\frac{25}{8} -x-\frac{11}{8} =0

<em>Adding both sides by </em>x<em> we get:</em>

\frac{25}{8} -\frac{11}{8} =x

\frac{25-11}{8} =x

\frac{14}{8}=x

x=\frac{14}{8}

x=\frac{7}{4}

x=1\frac{3}{4}\ feet.

Therefore, orange ribbon Zoe use is 1\frac{3}{4} \ feet.

8 0
3 years ago
Select the expression that makes the equation true (−3⋅10 3 )⋅(4⋅10 6 )<br>select 2 answers
scZoUnD [109]
The answer is letter c , because if you multiply the number 4 that is outside with the third power you will get 12 and with the second power you will get 8 and base number stays the same. As an answer you’ll get the same numbers as the expression
5 0
3 years ago
Solve the equation for x, where x is a real number (5 points): <br> -2x^2 + 7x + 7 = 6
Artemon [7]
Start by doing a subtraction of 6 to both sides so that the equation becomes -2x^2 + 7x + 1 = 0.
To find the solutions to this equation, we can apply the quadratic formula. This quadratic formula solves equations of the form ax^2 + bx + c = 0
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                             x = [ -7 ± √((7)^2 - 4(-2)(1)) ] / ( 2(-2) )
                             x = [-7 ± √(49 - (-8) ) ] / ( -4 )
                             x = [-7 ± √(57) ] / ( -4)
                             x = [-7 ± sqrt(57) ] / ( -4 )
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The answers are 7/4 + sqrt(57)/4 and 7/4 - sqrt(57)/4.
8 0
3 years ago
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Translate into an inequality<br> The quotient of y and 7 is greater than or equal to -19
Dafna11 [192]

Answer:

y/7  >/  -19

That middle sign is the greater than or equal to sign (couldn't find on keyboard)

Step-by-step explanation:

y divided by 7 is greater than or equal to -19

Quotient means divided by.

7 0
3 years ago
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