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Dimas [21]
2 years ago
14

Plssssss help meh with this

Mathematics
2 answers:
valina [46]2 years ago
7 0

Answer:

f(-9) = -263

Step-by-step explanation:

f(-9) = -3(-9)^2 - 20

= -3(81) - 20

= -243 - 20

= -263

Naddik [55]2 years ago
5 0

Answer:

<h2><em><u>ᎪꪀsωꫀᏒ</u></em></h2>

➪-263

Step-by-step explanation:

-3x²-20

-3(-9)²-20

-3(81)-20

-243-20

-263

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Which equation can be used to solve a – 5 = 30?
kari74 [83]

Answer:

last one

a = 30 + 5

a - 5 = 30

Step-by-step explanation:

here is your answer

4 0
2 years ago
Find the new balance if $875 is deposited and $316 is withdrawn from a balance of $2,056.
cestrela7 [59]
Hello!

Answer:
$2,615
Explanation:
The balance of $ 2,056 is a positive number,
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5 0
3 years ago
(NEED DONE SOON) The measure of two supplementary angles are 4x - 24 and 4(2x - 3). <br> What is x
Zarrin [17]

Answer:

x = 12

Step-by-step explanation:

A pair of supplementary angles added together MUST equal 180. Therefore, as you are given two angles with the measures of (4x - 24) and 4(2x - 3), they must add together to equal 180. So, we get this equation:

(4x - 24) + 4(2x - 3) = 180

4x - 24 + 8x - 12 = 180 (we distributed 4(2x-3))

12x - 36 = 180

12x = 144

x = 12, -12

Therefore, x is 12 because -12 would mean that (4x-24) and 4(2x-3) are both negative, which is impossible for an angle measure.

5 0
2 years ago
Find the value of x in the figure below:
KIM [24]

Answer:

let remaining angle in heptagon be a.

a+64=180(linear pair)

a=116

again

x+155+90+163+a+121°=720(sum of interior angle of hexagon is (6-2)×180°)

x+529+a=720

x+116=720-529

x=191-116=75

5 0
2 years ago
At a local college, an admissions officer surveys the incoming class of 1,000 first-year students concerning their preference of
torisob [31]

Answer:

which one was it

Step-by-step explanation:

6 0
2 years ago
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