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xxTIMURxx [149]
2 years ago
10

Question 6 of 10

Mathematics
1 answer:
aliina [53]2 years ago
3 0

Answer:

awdjb333jjjjdjwbdwjkbjbwjadnjsndaonwndmsnpibngpbljkbdljabljfjijjjjjraheem hayat khan ahwdawghdu1iguiajhdjkahdiu

Step-by-step explanation:

111111-1-1-1-1-1-1-1-1-11-

1-1-1-1-1-1-1-1-1-1-

-1-1-1-1-1-1

-1-1-1-1-

-1-1-1-1

-1-1-1-

-1-1-1-1

-1-1-1-

-11--1

-1-1-

1-1--1

and use ur brain

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1. Add or subtract. Show your work for each problem.
Aleks04 [339]
Hi there!

a. 8x^2 - 1
(x^2 - 4x + 5) + (7x^2 + 4x - 6)
= x^2 + 7x^2 - 4x + 4x - 1
= 8x^2 - 1

b. 5x^2 + 7x - 7
(7x^2 + 4x - 6) - (2x^2 - 3x + 1)
= 7x^2 + 4x - 6 - 2x^2 + 3x - 1
= 7x^2 - 2x^2 + 4x + 3x - 6 - 1
= 5x^2 + 7x -7

Hope this helps!
4 0
3 years ago
The volume of a right circular cone is 2,279.64 in cubed. If the height of the cone is 18 in, what is the diameter of the cone?
Aleksandr [31]

ANSWER

A. 22 in

EXPLANATION

The volume of a cone is calculated using the formula:

Volume =  \frac{1}{3}  \times \pi {r}^{2} h

It was given that: the volume is 2,279.64 in³

The height of the cylinder is also given as: h=18 in.

We substitute, the given values into the formula to get:

2279.64=  \frac{1}{3}  \times (3.14) \times {r}^{2}  \times 18

2279.64= 18.84 {r}^{2}

{r}^{2}  =  \frac{2279.64}{18.84}

{r}^{2}  = 121

We take positive square root to get;

r =  \sqrt{121}

r = 11in

Therefore the diameter is 2(11) which is equal to 22 inches.

5 0
3 years ago
What is halfway between 458,000 and 459,000?
Nimfa-mama [501]
458,500 because they are 1000 apart and 500+500=1000
8 0
2 years ago
Read 2 more answers
What is the area of the kite?
Alona [7]

Answer:

im not fully sure because im a 4th grader but 52 i think.

7 0
2 years ago
What is the area of this trapozoid. .... You dont times everything together.
julsineya [31]

Answer:

The answer is 24

Step-by-step explanation:

Because you add all of the numbers up and you get 24.

8 0
3 years ago
Read 2 more answers
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