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2 years ago

What is -5x^2+7x+1 from 8x^2+x-10

Mathematics

1 answer:

Oliga [24]2 years ago

8 0

Answer:

13x^2 - 6x -11

Step-by-step explanation:

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Translate the sentence into an equation.

11Alexandr11 [23.1K]

Twice (2 times) the difference (subtraction) of a number (y) and 7 equals 3.

2*(y-7) = 3

hope this helps :)

4 0

3 years ago

Mr. Tola has a piece of wood that is

Gre4nikov [31]

Answer:

I think he can get 24ft pieces of wood im not sure dont hold me to it im not very good at math but I think thats right if it isnt i am sorry

8 0

3 years ago

77 yd<br> 36 yd<br> What is the length of the hypotenuse?<br> C =<br> yards

Elden [556K]

Answer:

c = 85 yd

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides , that is

c² = 77² + 36² = 5929 + 1296 = 7225 ( take square root of both sides )

c = $\sqrt{7225}$ = 85

6 0

3 years ago

Read 2 more answers

10 times the square root of 96

OverLord2011 [107]

The answer is 40 square root of 6.

8 0

2 years ago

Read 2 more answers

Help me please for the brainliest answer

AveGali [126]

Answer with Step-by-step explanation:

$a) {n}^{2} + 3 \\ \\ n = 1 \\ {1}^{2} + 3 \\ 1 + 3 \\ = 4 \\ \\ n = 2 \\ {2}^{2} + 3 \\ 4 + 3 \\ = 7 \\ \\ n = 3 \\ {3}^{2} + 3 \\ 9 + 3 \\ = 12 \\ \\ n = 4 \\ {4}^{2} + 3 \\ 16 + 3 \\ = 19 \\ \\ n = 10 \\ {10}^{2} + 3 \\ 100 + 3 \\ = 103$

In this sequence,

1st term = 4

2nd term = 7

3rd term = 12

4th term = 19

10th term = 103

$b)2 {n}^{2} \\ \\ n = 1 \\ 2 \times {1}^{2} \\ 2 \times 1 \\ = 2 \\ \\ n = 2 \\ 2 \times {2}^{2} \\ 2 \times 4 \\ = 8 \\ \\ n = 3 \\ 2 \times {3}^{2} \\ 2 \times 9 \\ = 18 \\ \\ n = 4 \\ 2 \times {4}^{2} \\ 2 \times 16 \\ = 32 \\ \\ n = 10 \\ 2 \times {10}^{2} \\ 2 \times 100 \\ = 200$

in this sequence,

1st term = 2

2nd term =8

3rd term = 18

4th term =32

10th term = 200

4 0

3 years ago