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2 years ago

What is f(-3) for the function f(a)=-2a2-5a+4?

Mathematics

1 answer:

posledela2 years ago

4 0

Answer:

-25

Step-by-step explanation:

2a² - 5a + 4, for f(-3)

2(-3)² -5(-3)+4

2*(-27)+15+4

-54+19

= -25

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Can someone also explain how to get the answer thank u

goblinko [34]

Answer:

$m = -\frac{194}{3}$

Step-by-step explanation:

I'm assuming you are trying to find m. In order to do so, you need to get m on one side.

Before doing that let's multiple -2 and -3m by $\frac{4}{3}$

$256=-\frac{8}{3} - 4m$

add $-\frac{8}{3}$ to both sides

$258\frac{2}{3}=-4m$

I would get rid of the fraction so I'd multiply both sides by $\frac{3}{1}$

$\frac{776}{3}*3 = 4m*3$

$776=-12m$

divide both sides by -12m

$m = -\frac{776}{12}$

which can be simplified to

$m = -\frac{194}{3}$

ALL UNLESS THAT $\frac{4}{3}$ IS A POWER

3 0

2 years ago

What percent of 56 is 14?

Marysya12 [62]

Answer:

25 percent

Step-by-step explanation:

Of means multiply and is means equals

P * 56 = 14

Divide each side by 56

P = 14/56

P = .25

To change to a percent, multiply by 100

P = 25 percent

4 0

3 years ago

Read 2 more answers

12. Find the area of a circle with a circumference<br> of 11(3.14) feet

sweet-ann [11.9K]

Answer:

A≈9.63

Step-by-step explanation:

Circumference: 11

Using the formulas

A=πr2

C=2πr

Solving forA

A=C2

4π=112

4·π≈9.62887

6 0

2 years ago

Manny and Emma are both competing in a long jump competition at their school. Manny can jump four fifths of the distance that Em

dezoksy [38]

C 32 is the answer to your question

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3 years ago

A or D i'm having a little trouble with this

sergeinik [125]

I believe it’s D bc I went over A and it doesn’t add up

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2 years ago