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3 years ago

Plz help no guessing

Mathematics

2 answers:

liq [111]3 years ago

4 0

$\sqrt{20}$ is between $\sqrt{16}$ and $\sqrt{25}$ , i.e. between 4 and 5,

Choice C

stich3 [128]3 years ago

3 0

the square root of 20 is 4.47 so I'd say C is the answer

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A lawn sprinkler is set in the corner of the backyard. Thomas has the sprinkler set to rotate at 90 degrees. He knows that the s

Alina [70]

Answer:

yes I think he does because of the distance of the sprinklers reach.

5 0

2 years ago

This is so important please help

Shtirlitz [24]

Given:

The center of the circle = (-1,0)

Point on the circle = (2,-4).

To find:

The equation of the circle.

Solution:

Distance between two points is

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

Distance between the center (-1,0) and the point on the circle (2,-4) is the radius of the circle.

$r=\sqrt{(2-(-1))^2+(-4-0)^2}$

$r=\sqrt{(2+1)^2+(-4)^2}$

$r=\sqrt{(3)^2+(-4)^2}$

On further simplification, we get

$r=\sqrt{9+16}$

$r=\sqrt{25}$

$r=5$

Now, the equation of the circle is

$(x-h)^2+(y-k)^2=r^2$

Where, (h,k) is the center and r is the radius of the circle.

The radius of the circle is 5 and the center is at (-1,0), so the equation of the circle is

$(x-(-1))^2+(y-0)^2=5^2$

$(x+1)^2+y^2=25$

Therefore, the first option is correct, i.e., $(x+1)^2+y^2=25$ .

3 0

2 years ago

Which statement is true

amid [387]

The answer is cr=ds to the question

6 0

3 years ago

Help ASAP! 25 points! I will also give brainliest!

Kazeer [188]

Answer:

756 m²

Step-by-step explanation:

I just know the answer XD

3 0

3 years ago

I NEED THIS ASAP about the Pythagorean

Natalija [7]

Answer: 24.49 or 24.5 if rounded.

Step-by-step explanation: We have to use the pythagorean theorem of course...

a² + b² = c²

15² + 20² = c²

225 + 400 = c²

600 = c²

$\sqrt{600}$

c = 24.49 (If we round to the nearest tenth then the answer is 24.5)

8 0

3 years ago