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Anna35 [415]
2 years ago
14

HELP ME PLEASE REALLY IMPORTANT OR ILL GET IN TROUBLE!! WILL MARK AS BRAINLEST IF YOU GET IT CORRECT!!

Mathematics
1 answer:
dmitriy555 [2]2 years ago
8 0

Answer:

2n + 11

Step-by-step explanation:

You can combine 4n and -2n.

You get 2n + 11

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A triangle has a perimeter of 91 cm. If the three sides of the triangle are n,4n - 2 and 5n - 7 what is the length of each side
sdas [7]

Answer:

10,38,43

Step-by-step explanation:

n+4n-2+5n-7=91

10n=91+2+7

10n=100

n=10

4(10)-2=38

5(10)-7=43

if anything is unclear, ask freely.

5 0
2 years ago
Exam
MrRissso [65]

Answer:

B. 1/9 cuz it's just saying y is 1/9 of x

3 0
2 years ago
A 10-foot by 12-foot wall has two windows that measure 3 feet by 5 feet each.
musickatia [10]

12 ft maybe? i dunno im sorry if this is wrong

6 0
3 years ago
Find the area of each sector.
sergey [27]

Answer:

D. \frac{525\pi}{8} m²

Step-by-step explanation:

Area of the sector = ½*r²∅

Where,

Radius (r) = 15 m

Angle in radians (∅) = \frac{7\pi}{12}

Plug in the values into the equation

Area of sector = \frac{1}{2} * 15^2 * \frac{7\pi}{12}

Area of sector = \frac{1}{2} * 225 * \frac{7\pi}{12}

Area of sector = \frac{1*225*7\pi}{2*12}

Area of sector = \frac{1,575\pi}{24}

Simplify

Area of sector = \frac{525\pi}{8}

5 0
3 years ago
2 4/5 x 3 1/8 proper fraction show work
erastovalidia [21]

Answer:

answer is 8 3/4

the formula is in the picture

hope this picture helps

4 0
2 years ago
Read 2 more answers
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