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svp [43]
3 years ago
10

What is the area of a cirlcle that's 4cm ​

Mathematics
1 answer:
Elena-2011 [213]3 years ago
7 0
If the radius of the circle is 4 than the area would be 50.27.

If you are saying that 4 is the diameter, than divide that by 2 to get the radius which is 2. The area for this would be 12.57.

I don’t know which one you mean but hope this helps :))
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This graph relates the volumes of triangular pyramids with a base area of 12 square inches and their heights.
Nikolay [14]

Answer:

V=40\ in^3

Step-by-step explanation:

The graph is not attached, however we know that, the volume of a triangular pyramid is given by the formula

V=\frac{1}{3}Bh

where

B is the area of the triangular face

h is the height of the pyramid

we have

B=12\ in^2\\h=10\ in

substitute the given values

V=\frac{1}{3}(12)(10)=40\ in^3

3 0
3 years ago
Which of the terms cannot be combined with the others?<br><br> 11 x<br> x<br> -3 x<br> 4 x 2
tiny-mole [99]

Answer: D. 4<em>x</em>^2

<em>Hope this helps!</em>

5 0
3 years ago
Find the unit rate. Enter your answer as a mixed number.
lesya [120]

The unit rate is the change of a quantity over one unit of another thus the unit rate of fertilizer covers is (30/8) foot per hour.

<h3>What is the rate of change?</h3>

The rate of change is the change of a quantity over 1 unit of another quantity.

Most of the time the rate of change is the change with respect to time.

For example the speed 3meter/second.

As per the given,

A fertilizer covers 5/8 square feet in 1/6 hour.

5/8 square feet ⇒ 1/6 hour

Multiply both sides by 6

6 × 5/8 square feet ⇒ 6/6 hour

30/8 square feet ⇒ 1 hour.

Hence "The unit rate is the change of a quantity over one unit of another thus the unit rate of fertilizer covers is (30/8) foot per hour".

To learn more about the rate of change here,

brainly.com/question/12786410

#SPJ1

5 0
1 year ago
Which shows two expressions that are equivalent to (Negative 7) (Negative 15) (Negative 5)? (Negative 7) (Negative 75) and (Nega
dimulka [17.4K]

Answer:

1 3 and 4

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find the slope of a line perpendicular to y=3×+7​
polet [3.4K]

Answer:

-1/3

Step-by-step explanation:

y = 3x+7

This is in the form y = mx+b

The slope is m so it is equal to 3

Perpendicular lines have slopes that are negative reciprocals

m perpendicular = - (1/3)

                   

7 0
3 years ago
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