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Oksanka [162]
2 years ago
15

Solve using elimination. –9x − 7y = –10 9x + 8y = 5

Mathematics
1 answer:
guapka [62]2 years ago
7 0

Answer:

x=4y

Step-by-step explanation:

mathpapa

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PLSSS HELP. WILL MARK BRAINLIEST. A rectangle has sides measuring (6x + 4) units and (2x + 11) units. Part A: What is the expres
Leni [432]

Answer:

Below.

Step-by-step explanation:

Part A: (6x+4)(2x+11)=12x^2+66x+8x+44=12x^2+74x+44

Part B: Degree = 2, Classification = Quadratic

Part C: The polynomial is closed because it is multiplied. You CANNOT close under division.

4 0
3 years ago
A
LenaWriter [7]

Answer:

899 ft

Step-by-step explanation:

if point a is 400 feet from the base and 499 feet away from the top you would need to add 400+499 together to get 899

6 0
2 years ago
6. Find the volume of the composite figure. ​
Elenna [48]

Answer:

4×6=24

24×15=360

360×2=720

15-12=3

3×6=18

18×18=324

324+720=1044inches

4 0
3 years ago
1. Attiana bought 5 packets of pumpkin seeds. Each packet contained 32 seeds. Attiana planted 1 packet of the seeds and 20 seeds
Verdich [7]
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3 years ago
Help solve this please
ad-work [718]

Answer:

a) 2

b) -\frac{1}{2}

c) y = 2x + 1

Step-by-step explanation:

a)

First put the equation into slope intersept form (y=mx+b) by...

  • Move the variable to the right-hand side and change its sign : -y = -4 -2x
  • Change the signs on both sides of the equation: y = 4 + 2x
  • Use the commutative property to reorder the terms : y = 2x + 4

Slope intersept form : y = 2x + 4

Parallel lines have the same slope so.... a parallel slope is 2

b)

First put the equation into slope intersept form (y=mx+b) by...

  • Move the variable to the right-hand side and change its sign : -y = -4 -2x
  • Change the signs on both sides of the equation: y = 4 + 2x
  • Use the commutative property to reorder the terms : y = 2x + 4

Slope intersept form : y = 2x + 4

To find a perpendicular slope flip the slope and change the sign : -\frac{1}{2}

c)

First put the equation into slope intersept form (y=mx+b) by...

  • Move the variable to the right-hand side and change its sign : -y = -4 -2x
  • Change the signs on both sides of the equation: y = 4 + 2x
  • Use the commutative property to reorder the terms : y = 2x + 4

Slope intersept form : y = 2x + 4, parellel slope : 2

  • Substitute the x and y values with the given ordered pair: 3 = 2(1) + b
  • Calculate the product: 3 = 2 + b
  • Move the variable to the left-hand side and change its sign: -x = 2 - 3
  • Calculate the difference and change the signs : b = 1

Use the slope and y-intersept (b) to write the new line : y = 2x + 4

7 0
3 years ago
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