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jolli1 [7]
3 years ago
15

If f(x)= -1x2+3, find f(1) Someone help me, I'm so confused ;-;

Mathematics
1 answer:
inna [77]3 years ago
8 0

Answer:

-1×(1)×2+3=1 This is the answer I think

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The circumference of a circle is 7π m. What is the area of the circle? ​3. 5π​ m² ​12. 25π​ m² ​14π​ m² ​49π​ m².
Juliette [100K]

Area of the circle is the area covered by that circle. The area of the circle whose circumference is 7π m is 12.25π m².

<h3>What is the area of a circle?</h3>

The area of the circle is the area covered by that circle. It is given by the formula,

\text{Area of the circle}=\pi r^2

where r is the radius of the circle.

As it is given that the circumference of a circle is 7π m. Therefore, the radius of the circle can be written as,

\text{Circumference of the circle} = 2\pi r

7 \pi = 2 \pi r\\\\r = 3.5\rm\ m

Now, we know the formula of the area of a circle, therefore, the area of the circle can be written as,

\text{Area of the circle}=\pi r^2

                           = \pi \times (3.5)^2\\\\= 12.25\pi\rm \ m

Hence, the area of the circle whose circumference is 7π m is 12.25π m².

Learn more about Area of Circle:

brainly.com/question/1238286

5 0
3 years ago
Find in RxR the S.S of the following pair of equation
Licemer1 [7]

Answer:

(- 2, - 1 ), (2, 1 )

Step-by-step explanation:

Given the 2 equations

x - 2y = 0 → (1)

x² - y² = 3 → (2)

Rearrange (1) expressing x in terms of y by adding 2y to both sides

x = 2y → (3)

Substitute x = 2y into (2)

(2y)² - y² = 3, that is

4y² - y² = 3

3y² = 3 ( divide both sides by 3 )

y² = 1 ( take the square root of both sides )

y = ± \sqrt{1} = ± 1

Substitute these values into (3) for corresponding values of x

y = - 1 ⇒ x = 2(- 1) = - 2 ⇒ (- 2, - 1 )

y = 1 ⇒ x = 2(1) = 2 ⇒ (2, 1 )

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How to make a dot plot
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Answer:

draw a a big L and put your numbers

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so what do u need help with?

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Can someone show me an example of an equation in point slope form. I don't need an explanation just literally any equation in po
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