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3 years ago

PLS HELP WITH ALGEBRA

Mathematics

1 answer:

pantera1 [17]3 years ago

6 0

Answer:

1. 4x(x^2+5x+4)

2. 2x^2(6x^2+13x-8)

3. 2(5x^2+24x-5)

Step-by-step explanation:

The common factor between all the monomials is 4x, so we divide each by 4x.

The common factor between all the monomials is 2x^2, so we divide each by 2x^2.

The common factor between all the monomials is 2, so we divide each by 2.

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If A(3,4) and B(10,4) are the end points of a diameter of circle "O", what is the area of the circle O

ikadub [295]

Answer:

$\large\boxed{\dfrac{49\pi}{4}}$

Step-by-step explanation:

The formula of an area of a circle:

$A=\pi r^2$

r - radius

We have the endpoints of a diameter of a circle.

The formula of a distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Substitute the coordinates of the given points A(3, 4) and B(10, 4):

$d=\sqrt{(10-3)^2+(4-4)^2}=\sqrt{7^2+0^2}=\sqrt{7^2}=7$

Therefore we have the length of the diameter: d = 7

We know: d = 2r. Therefore

$r=\dfrac{7}{2}$

Substitute to the formula of an area:

$A=\pi\left(\dfrac{7}{2}\right)^2=\dfrac{49\pi}{4}$

There is no such answer in the answers to choose.

Apparently you have some error in the coordinates of the endpoints.

8 0

3 years ago

Find the square root of 146.00048648 up to three places of decimal?

aivan3 [116]

Answer:

12.083

Explanation:

Plug into a calculator.

3 0

3 years ago

13x-11 +18x15+ 4x+1=180°

BARSIC [14]

Answer:

x = - 80/17, or x = - 4 $\frac{12}{17}$

Step-by-step explanation:

13x-11 +18×15+ 4x+1=180°

<=> (13x + 4x) + (18×15+ 1 - 11)=180°

<=> 17x + 260 =180

<=> 17x = 180 - 260

<=> 17x = - 80

<=> x = - 80/17

<=> x = - 4 $\frac{12}{17}$

6 0

3 years ago

How tall would the tree be?

Ksivusya [100]

Answer:

26 feet

Step-by-step explanation

3 0

3 years ago

Hi Someone that is able to do it

VARVARA [1.3K]

I think it’s b

Not for sure but it makes the most sense

8 0

3 years ago