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3 years ago

Find the area of a circle with radius 7cm

2 answers:

6 0

The formula for the area of a circle is A = pi * r^2, where r is the radius.
A = pi * 7^2
= 49 pi
= 153.86 cm^2

Have a nice day! :)

uysha [10]3 years ago

4 0

153.94 is the answer.

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What is the value of 4x to the third +4x if x is 4

weqwewe [10]

The correct answer of
$4{x}^{2} + 4x$
if x=4 is 272.

to solve the equation if x equals 4, you must substitute the x of the 4.
$4( {4}^{3} ) + 4(4)$
then solve by order of operations.
solve what is inside the parentheses first
$4(64) + 4(4)$
then do the multiplication of the factors
$256 + 16$
then the final step, adding, to get the solution of 272

5 0

3 years ago

Which of the points are solutions to the inequality?

postnew [5]

I think 4

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Find the distance between the points (-4, -5 and (3, -1.

Komok [63]

≡ We know that:
⇔ $(x_{1},y_{1})$ → $(-4,-5)$
⇔ $(x_{2},y_{2})$ → $(3,-1)$

≡ Solution:
⇒ $\sqrt{[(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}]}$
⇒ $\sqrt{[(3-(-4))^{2}+(-1-(-5))^{2}]}$
⇒ $\sqrt{[7^{2}+4^{2}]}$
⇒ $\sqrt{[49+16]}$
⇒ $\boxed{\sqrt{65}}$

7 0

3 years ago

Read 2 more answers

What is x and how do I do this help-

GaryK [48]

Answer:

x=18

Step-by-step explanation:

all the interior angles in a pentagon = 540. use to interior angle theorem. then just add all the angles up and make them = to 540 like this: 540=95+90+(7x-4)+(3x+23)+(9x-6). then solve using algebra

8 0

2 years ago

Planes S and R both intersect plane T Which statements are true based on the diagram? Select three options OPlane S contains poi

jeka94

Answer:

Options (2), (4) and (5)

Step-by-step explanation:

Option (1).

Planes S contains points B and F.

False.

(Point B lies on plane S and point F lies on plane R)

Option (2).

The line containing points A and B lie on the plane T.

True.

(points A and B lie on plane T)

Option (3).

Line v intersects lines x and y at the same plane.

False.

Option (4).

Line z intersects plane S at point C.

True.

Option (5).

Planes R and T intersect at line y.

True.

5 0

3 years ago