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3 years ago

Find f(-2) f(x)=2x^2 - 3x+6a. 4b. 8c. 10d. 20

Mathematics

2 answers:

Harrizon [31]3 years ago

6 0

I think it should be D

Alexus [3.1K]3 years ago

4 0

Answer:

Step-by-step explanation:

If (x+2) = 0; therefore, x = -2 .hence

f(-2) = 2x² - 3x + 6; 2(-2)² - 3(-2) +6

2(4) +6 +6; 8 + 12, =20. Therefore D is the correct answer.

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Tom [10]

Number = 125
Here, ∛125 = 5
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So, your final answer is 5³

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3 years ago

The graph shows the number of flowers that can be pollinated as the number of bees increase. What is the unit rate?

dybincka [34]

Answer:

Step-by-step explanation:

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2 years ago

2 of a dozen eggs are cracked. What percent of the carton is NOT cracked using the percent proportion

levacccp [35]

If 2 of 12 eggs are cracked, then 10 are not cracked.

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6 0

2 years ago

Is the simplified form of 2-3 + 3.3 rational?<br> Yes<br> No

N76 [4]

Answer:

YES IT IS

Step-by-step explanation:

2-3 + 3.3

= -1 + 3.3

= -4.3

We learn that:

Rational number: rational number is the number that can be written as a/b (a and b would be intergers and b is not equal to 0). Rational number would be most of numbers we use in out life, except Square root and Pi number.

In this case, -4.3 can be write as -43/10

So YES it would be a rational number

Hope this helped :3

6 0

3 years ago

The graph of f is given in the figure to the right. Let A(x)equals=Integral from 0 to x f left parenthesis t right parenthesis

Tpy6a [65]

Answer:

$A(4)=-4\pi$

$A(8)=-4\pi +8$

$A(12)=-4\pi +16$

$A(14)=-4\pi +15$

Step-by-step explanation:

we are given

$A(x)=\int\limits^x_0 f{x} \, dx$

Calculation of A(4):

we can plug x=4

$A(4)=\int\limits^4_0 f{x} \, dx$

Since, this curve is below x-axis

so, the value of integral must be negative

and it is quarter of circle

so, we can find area of quarter circle

radius =4

$A(4)=-\frac{1}{4}\times \pi \times (4)^2$

$A(4)=-4\pi$

Calculation of A(8):

we can plug x=8

$A(8)=\int\limits^8_0 f{x} \, dx$

we can break into two parts

$A(8)=\int\limits^4_0 f{x} \, dx+\int\limits^8_4 f{x} \, dx$

now, we can find area and then combine them

$A(8)=-4\pi +\frac{1}{2}\times 4\times 4$

$A(8)=-4\pi +8$

Calculation of A(12):

we can plug x=12

$A(12)=\int\limits^12_0 f{x} \, dx$

we can break into two parts

$A(12)=\int\limits^4_0 f{x} \, dx+\int\limits^8_4 f{x} \, dx+\int\limits^12_8 f{x} \, dx$

now, we can find area and then combine them

$A(12)=-4\pi +\frac{1}{2}\times 8\times 4$

$A(12)=-4\pi +16$

Calculation of A(14):

we can plug x=14

$A(14)=\int\limits^14_0 f{x} \, dx$

we can break into two parts

$A(14)=\int\limits^4_0 f{x} \, dx+\int\limits^8_4 f{x} \, dx+\int\limits^12_8 f{x} \, dx+\int\limits^14_12 f{x} \, dx$

now, we can find area and then combine them

$A(14)=-4\pi +\frac{1}{2}\times 8\times 4-\frac{1}{2}\times 1\times 2$

$A(14)=-4\pi +16-1$

$A(14)=-4\pi +15$

8 0

2 years ago

Find f(-2) f(x)=2x^2 - 3x+6a. 4b. 8c. 10d. 20​

Find f(-2) f(x)=2x^2 - 3x+6a. 4b. 8c. 10d. 20