2 years ago

Use the intersect method to solve the equation. 50 FREE POINTS x^2-7= -x^2+1

Mathematics

2 answers:

KATRIN_1 [288]2 years ago

8 0

x=2,-2, I am not positive though

Yuri [45]2 years ago

5 0

Answer:

x=2,-2

Step-by-step explanation:

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igor_vitrenko [27]

Answer:

28.25 square units

Step-by-step explanation:

A circumference of the circle is

$C=2\pi r,$

where r is the radius of the circle.

So,

$18.84=2\pi r\\ \\r=\dfrac{18.84}{2\pi}=\dfrac{9.42}{\pi}\ cm$

The area of the circle is

$A=\pi r^2$

Substitute the value of the radius:

$A=\pi \cdot \left(\dfrac{9.42}{\pi}\right)^2=\dfrac{9.42^2}{\pi}\approx 28.25\ un^2$

8 0

2 years ago

Read 2 more answers

The rectangular prism below has a length of 18 inches, a width of 24 inches, and a height of 12 inches.

andrew11 [14]

Answer:

1872

Step-by-step explanation:on edge

3 0

3 years ago

Which problem can be solved using the equation below?

Lelu [443]

Which equation? Sorry I don’t see one

3 0

2 years ago

Help again please?............

zheka24 [161]

18.72
so the answer is d

4 0

2 years ago

Please help! <br> Use the Law of Cosines to find the values of x and y.

Romashka [77]

Answer:

x = 8.39

y = 55.2

Step-by-step explanation:

9² + 1² - 2(9)(1)cos(50) = x²

x = 8.39

9/sin(y) = x/sin(50)

sin(y) = 0.8215200692

y = 55.23724927

8 0

2 years ago