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Hatshy [7]
4 years ago
8

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

Mathematics
2 answers:
Harrizon [31]4 years ago
6 0
I think it should be D
Alexus [3.1K]4 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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Surface area of a triangular prism
NISA [10]

Answer:

C

Step-by-step explanation:

7 0
3 years ago
What is 5 - j = 3 ????
VikaD [51]

Answer:

j=2

Step-by-step explanation:

<em>First, subtract by 5 from both sides of equation.</em>

<em>5-j-5=3-5</em>

<em>Simplify.</em>

<em>3-5=-2</em>

<em>-j=-2</em>

<em>Divide by -1 from both sides of equation.</em>

<em>-j/-1=-2/-1</em>

<em>Simplify, to find the answer.</em>

<em>-2/-1=2</em>

<em>It change negative to positive.</em>

<em>j=2 is the correct answer.</em>

<em>I hope this helps you, and have a wonderful day!</em>

4 0
3 years ago
Read 2 more answers
Can someone plz help me solved this problem! I’m giving you 10 points! I need help plz help me! Will mark you as brainiest!
pickupchik [31]

Hey there! :)

Answer:

a. 3

b. -22

c. -2

d. -2

e. 5a + 8

f. a² + 6a + 3

Step-by-step explanation:

Calculate the answers by substituting the values inside of the parenthesis for 'x':

a. f(1) = 5(1) - 2 = 3

b. f(-4) = 5(-4) - 2  = -22

c. g(-3) = (-3)² + 2(-3) - 5 = 9 - 6 - 5 = -2

d. g(1) = 1² + 2(1) - 5 = 1 + 2 -5 = -2

e. f(a+ 2) = 5(a+2) - 2 = 5a + 10 - 2 = 5a + 8

f. g(a + 2) = (a + 2)² + 2(a + 2) - 5 = a² + 4a + 4 + 2a + 4 - 5 =

a² + 6a + 3

7 0
4 years ago
A 5.20 bucket of water is accelerated upward by a cord of negligible mass whose breaking strength is 70.0. If the bucket starts
kondaur [170]
The force being exerted by the cord is m(a+g) if the bucket is being accelerated upward.

If T = 70 N, then <span>a=70N/5.2kg−9.8m/<span>s2</span>=3.66m/<span>s2</span></span>is the maximum acceleration that it could have.
 
Starting from rest, <span>Δy = 1/2a<span>t2</span>→ t = </span>√2Δy/a = <span>√</span>2∗12.5/3.66 = 2.61s
8 0
3 years ago
Drag each label to the correct location on the figure. Not all labels will be used.
Alex787 [66]

Answer:

The answers are on the image shown.

remember that all the angles of a triangle add up to 180

Step-by-step explanation:

hope this helps

5 0
3 years ago
Read 2 more answers
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