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klemol [59]
3 years ago
13

What are the factors of 2n^2 -5n- 42

Mathematics
2 answers:
motikmotik3 years ago
8 0
You can factor by grouping.

(n - 6) (2n + 7)
bezimeni [28]3 years ago
7 0

2 • (n - 3) • (n - 7)


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An air traffic controller is tracking two planes.To start Plane A was at an altitude of 990 meters and plane B was at an altitud
soldi70 [24.7K]

The equation representing when the two planes would be at the same altitude is 9x=486

<h3>In terms of mathematics, what is an equation?</h3>

Equation: A declaration that two expressions with variables or integers are equal. In essence, equations are questions, and attempts to systematically identify the solutions to these questions have been the driving forces behind the creation of mathematics.

From (a) we get that: Altitude of Plane A = 990-18x

Altitude of Plane B = 1476-27x

make 890 - 18x = 1476-27x

-18x+27 x = 1476-890

9x=486

X= 54

so pass 54 seconds will the two plane at the same altitude.

To learn more about equations from given link

brainly.com/question/25678139

#SPJ9

8 0
1 year ago
How do you graph this ​
Trava [24]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
The population of Mexico has been increasing at an annual rate of 1.7%. If the population was 100,350,000 in the year 2000, pred
Svetllana [295]

We can withdraw a equation to give mexico population

P = M.(1 + i)^t

So,

First of all, how many years passed? 2015 - 2000 = 15. Our time is 15, our annual rate is 1,7%, time to calc.

P = 100350000.(1 + 1,7%)^15

1,7% = 0,017

P = 100350000.(1 + 0,017)^15

P = 100350000.(1,017)^15

P = 100350000.1,2876988084901218382866596204289

P = 129220575,43198372647206629291004

Rounding

P = 129,220,575

8 0
3 years ago
Read 2 more answers
I dont understand how to write this 2 problems out in equivalent form
deff fn [24]
Just do 1/8 times 1/8. Hope this helped !!
8 0
3 years ago
What is 285% of 171 equals what?
Nutka1998 [239]
285% is same as 285/100 which equal 2.85
Then 2.85 x 171 = 487.35

Answer: 487.35
3 0
3 years ago
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