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dem82 [27]
4 years ago
14

PLEASE CAN SOMEONE HELP ME WITH THE 3 QUETIONS

Mathematics
1 answer:
VARVARA [1.3K]4 years ago
3 0
1.
2x (4x² -3x +8) - (3x+4)
8x³ - 6x² +16x -3x -4
8x³ -6x² +13x -4


2.
3x(2x²-7)+7x(x²+4)
6x³ -21x +7x³ +28x
13x³ +7x


3.
2x² (-4x^4 -12x² - x +17)
-8x^6 - 24x^4 - 2x³ + 34x²
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Please help I’ll mark you as brainliest if correct!
serious [3.7K]

Answer:

A

Step-by-step explanation:

it's done by pythagoreans theorem

√25-9=4

6 0
3 years ago
Read 2 more answers
HELP DUE IN 10 MINUTES!! WILL GIVE BRAINLEST IF CORRECT!!!!
Harman [31]

Answer:

<u>Given equation:</u>

  • y = 10x - 32

<u>To find the y-intercept, evaluate the equation with x = 0:</u>

  • y = 10*0 - 32
  • y = 0 - 32
  • y = -32

<u>To find the x-intercept, evaluate the equation with y = 0:</u>

  • 0 = 10x - 32
  • 10x = 32
  • x = 32/10
  • x = 3.2
8 0
3 years ago
Given that the area of a trapezoid is given by the formula A = 1/ 2 h(b1 + b2), what is the value of A if h = 2 cm, b1 = 3, and
Wewaii [24]

Answer:

A=7

Step-by-step explanation:

A=1/2h(b1+b2)

plug in what you know

A=1/2x2(3+4)

PEMDAS

A=1/2x2(7)

A=1/2x14

A=7

8 0
4 years ago
PLEASE HELP!!! I will give brainliest answer to whos correct!
lbvjy [14]
The answer is way too hard for me to answer
4 0
3 years ago
The question is in the photo above plz answer
frutty [35]

Answer:

surface area of cuboid=2(lb+bh+hl)

surface area of cuboid=2(12×5+5×2+2×12 )

surface area of cuboid=188in²

5 0
3 years ago
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