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Umnica [9.8K]
2 years ago
13

Subtract the following polynomials. Write answer in a-b-c-d order. From 4a+7b-12c subtract 8a-9b+12d

Mathematics
1 answer:
ozzi2 years ago
4 0

(4a+7b-12c)-(8a-9b+12d)\\4a+7b-12c-8a+9b-12d

Negative multiply negative = Positive

Negative multiply positive = negative

-8a+4a+9b+7b-12c-12d\\-4a+16b-12c-12d

Thus the answer is -4a + 16b - 12c - 12d.

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The state of Kansas has a population of about 2.85 million people. Find the population density
iris [78.8K]

Answer:

<u>In the state of Kansas, the density of people per square mile is 34.3 </u>

Step-by-step explanation:

According to US topographers, the state of Kansas has an area of ​​213 096 km².

If 1 km² is equal to 0.39 mi², then how much is 213 096 km².

If 1 km²   :   0.39 mi².

213,096 km²  :   83,107.44 mi²

If the state of Kansas has a population of 2.85 million people, then:

2.85 x10^6 people / 83 107.44 mi² =

34.3 people per square mile.

3 0
3 years ago
NEED HELP WITH ALGEBRA PLEASE!!!!!!Arrange these functions from the greatest to the least value based on the average rate of cha
slamgirl [31]
F(x)=x²+3x ; [-2;3]⇒Δf/Δx=(f(3)-f(-2))/(3-(-2))=4   (A)
f(x)=3x-8 ; [4;5]⇒Δf/Δx=<span>(f(5)-f(4))/(5-4)=3           (B)
f(x)=x</span>²-2x ;[-3; 4]⇒<span>Δf/Δx=(f(4)-f(-3))/(4-(-3))= -1  (C)
f(x)=x</span>²-5 ;[-1; 1]⇒<span>Δf/Δx=(f(1)-f(-1))/(1-(-1))= 0     (D)

answer: A, B, D, C

</span><span>
</span>
8 0
3 years ago
Read 2 more answers
Can someone help me out on these geometry fill in the blanks questions? Just questions 2,3,4.. it’s urgent
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2.) 3&4
3.) 1&3
4.) 2&4
6 0
1 year ago
An airplane is preparing to land at an airport. It is 50400 feet above the ground and is descending at the rate of 3000 feet per
Dovator [93]

Answer:

let t = no of minutes when they are at the same altitude

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52200 - 3300t = 2500t

52200 = 3300t + 2500t

52200 = 5800t

t = 52200/5800

t = 9 minutes they will be at the same altitude

:

The altitude:

9*2500 = 22500 ft

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Check on other train

52200 - 9(3300) =

52200 - 29700 = 22500 ft

3 0
2 years ago
POSSIBLE POINTS: 16.67
Andrews [41]

Answer:

24 inches

Step-by-step explanation:

7 0
2 years ago
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