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3 years ago

Can someone help me please? i'm not sure if 4 is right and i don't understand how to do 3

Mathematics

1 answer:

PtichkaEL [24]3 years ago

3 0

3 Is B. The formula for finding the area of a circle is A= r(to the second power) times Pi. The radius is 6, so you must do 6 to the second power which is 6 times 6. That is 36. Your answer will be 36 pi.

You might be interested in

What is the value of the expression? (-3)(-4)(-5)

nekit [7.7K]

Answer:

-60

Step-by-step explanation:

-3 x -4 x -5

12 x -5

-60

negative x negative x negative= negative

4 0

2 years ago

Evaluate the limit 9n^3 + 5n - 2/2n^3

VikaD [51]

Answer:

9/2 if n goes to infinity and that the 2n^3 is under the whole expression

Step-by-step explanation:

Let me clear this .

find limit (9n^3 + 5*n - 2)/ (2n^3)

as n --> infinity

Did I put the parentheses in the right spot?

because if you leave it the way you did, then the whole expression goes to positive infinity as n goes to infinity But I will do this with parentheses

find limit (9n^3 + 5*n - 2)/ (2n^3)

simplify expression

limit (9/2) + 5/(2n^2) - 1/(n^3)

= (9/2) + 0 - 0

= (9/2)

4 0

2 years ago

The length of the shorter side of a parallelogram is 29 cm. Perpendicular line segment, which goes through the point of intersec

Katena32 [7]

A = 900 $cm^{2}$

The area of a parallelogram can be found by taking its base (b) and multiplying by the height (h). The base has the measure of 33 +12 = 45 cm. Now, you just need to find the height of the parallelogram. The height can be found by using the pythagorean theorem ( $a^{2} + b^{2} = c^{2}$ .

So, when simplified the height of the parallelogram will be found from $\sqrt{ 29^{2} - 21^{2}}$

The height is 20 cm. The base is 45 cm. 45 x 20 = 900.

6 0

3 years ago

What is the slope for a line that is perpendicular to the line x = -6?

VARVARA [1.3K]

Answer:

There is not a slope perpendicular to the lie x = -6

Step-by-step explanation:

In this equation, you are given a line, x = -6.

This is in fact a line with an undefined slope. The slope for a perpendicular intersection is the opposite reciprocal of the slope.

Eg. If you have the line y = 2x

The reciprocal is y = 1/2x, the opposite means negative

So the slope that would intersect this line perpendicularly is y = -1/2x.

There is an undefined slope in this, therefore, you cannot find the slope for a line perpendicular to x = -6.

If it were an option, I would choose "no slope"

8 0

2 years ago

A rectangular prism has a length of 12 centimeters, a width of 6 centimeters, and a height of 9 centimeters. A cross section is

Klio2033 [76]

Answer:

<h2>The perimeter of the cross section is 30 centimeters.</h2>

Step-by-step explanation:

In this problem we have the intersection of a rectangular prism an a plane.

The dimensions of the rectangular plane are

$l=12cm\\w=6cm\\h=9cm$

Assuming the plane is cutting the prism horizontally, the cross section would have dimensions

$w=6cm\\l=9cm$

Because only the height would be cut.

So, the perimeter of the rectangle cross-section is

$P_{cross}=2(l+w)=2(6+9)=2(15)=30cm$

Therefore, the perimeter of the cross section is 30 centimeters.

3 0

3 years ago