2 years ago

Can somebody help me please?

Mathematics

1 answer:

Nina [5.8K]2 years ago

7 0

Answer:

it's a that's the answer

You might be interested in

What Is the value of x?

Greeley [361]

Answer:

idk

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

a cylindrical tank with radius 7 m is being filled with water at a rate of 4 m3/min. how fast is the height of the water increas

Rzqust [24]

Answer:

0.026 m / min.

Step-by-step explanation:

Volume V = π7^2h

V = 49πh

dV/dh = 49π

Rate that the volume is increasing is 4 m3/min.

So dV/dt = 4

dV/dt = dh/dt * dV/dh

4 = dh/dt * 49π

dh/dt = 4/49π

= 0.026 m / min.

8 0

3 years ago

Help plz only one question and the ans will come 100 ,100 ,80 of each angle

salantis [7]

z° = 80° (Being corresponding angles)

y° + 80° = 180° (Being linear pair of angles)

=> y° = 180° - 80°

=> y° = 100°

x° = y° (Being interior opposite angles)

=> x° = 100°

6 0

3 years ago

Simiplify.<br> U^2 - 4 / U^2 - 2u

Papessa [141]

Remember
difference of 2 perfect squares
a^2-b^2=(a-b)(a+b)

and the undistributiv propeoryt
ab-ac=a(b-c)

so we have
$\frac{u^{2}-4}{u^{2}-2u}$
undistribute and factor
$\frac{(u-2)(u+2)}{u(u-2)}$
cancel out the one ( (u-2)/(u-2)=1)

$\frac{(u+2)}{u}$ is result

3 0

3 years ago

Read 2 more answers

Find the number of real number solutions for the equation. x^2+0x-1=0

larisa86 [58]

<span>x^2 + 0x - 1 = 0

x^2 - 1 = 0

This is a difference of two squares which factors into the product of a sum and a difference with the pattern: a^2 - b^2 = (a + b)(a - b).

(x + 1)(x - 1) = 0

x + 1= 0 or x - 1 = 0

x = -1 or x = 1

Answer: There are two real solutions.</span>

5 0

3 years ago

Read 2 more answers