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3 years ago

Solve by factoring:4x² - 8x=0

Mathematics

1 answer:

AnnyKZ [126]3 years ago

5 0

Answer:

Step-by-step explanation:

4x² - 8x= 0

4x(x -2) = 0

: 4x = 0 or x - 2 = 0

4x = 0

Dividing by 4

x = 0/4

x = 0

And

x - 2 = 0

x = 2

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The endpoints of a diameter of a circle are A(3,1) and B(9,9). Find the area of the circle in terms of pie

andrey2020 [161]

Answer:

The answer is $25\pi$ units squared.

Step-by-step explanation:

If we find the diameter, we can find the radius by halving the diameter.

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The distance formula will give us the length between (3,1) and (9,9).

The distance formula is $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ .

The distance between the $x$ 's is 9-3=6.

The distance between the $y$ 's is 9-1=8.

The distance between the points is given by $\sqrt{6^2+8^2}=\sqrt{36+64}=\sqrt{100}=10$ .

The radius is therefore $\frac{10}{2}=5$ .

We are asked to find the area of this circle.

The formula for finding the area of a circle is $\pi r^2$ .

Since the radius is $5$ , then the area in terms of $\pi$ ,(pi), is $\pi (5)^2=\pi (25)$ .

The answer is $25\pi$ units squared.

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3 years ago

What is the slope of the line? 3(y-1)=2x+2

Aleks [24]

Answer: 2/3

Step-by-step explanation:

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3 years ago

A price decreased from 60$ to 45$ find the percent of decrease

BlackZzzverrR [31]

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3 years ago

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1 inch = 2.54 centimeters The radius of the hexagon is 30 cm What is the approximate area to be covered by the window in square

lora16 [44]

Answer:

2.5 square feet

Step-by-step explanation:

The area (A) of a regular hexagon in terms of its side length (s) is ...

A = (3/2)(√3)s²

The side length in feet is ...

(30 cm)×(1 ft)/(30.48 cm) = s = 30/30.48 ft = 125/127 ft

Then the area in square feet is ...

A = (3/2)√3(125/127 ft)² ≈ 2.517 ft²

The approximate area of the hexagon is 2.5 square feet.

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Comment on the question

There is nothing in this problem statement that relates the hexagon to the window area.

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3 years ago

Write an expression for the next 3 even numbers that are greater than P

Alisiya [41]

Every even number is 2 away from the last.
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(If we had an odd number p, then the next three even numbers would be
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Solve by factoring:4x² - 8x=0​

Solve by factoring:4x² - 8x=0