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Softa [21]
3 years ago
7

The area of a circle with a diameter of 240 mm is?

Mathematics
2 answers:
Cloud [144]3 years ago
7 0
The answer would be B
gizmo_the_mogwai [7]3 years ago
4 0
First, consider the formula for area of a circle:

Area of a circle= π r²

Secondly, because the diameter is double the radius, and we have been given the diameter, we can find the radius!

               d/2=r
(240mm) / 2= r
       120mm = r

Finally, now that we know the radius, we can find the area!

Area = π r²
         = π (120)²
         = π 14400mm² OR  45238.93 mm²

Hope this helps!
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Calculate the average rate of change of f(x) = 1 x - x2 - 2 for 3 ≤ x ≤ 6. A) -163 18 B) -18 163 C) 163 18 D) 18 163
larisa86 [58]
To solve this we are going to use the average rate of change formula: A(x)= \frac{f(b)-f(a)}{b-a}
where
A(x) is the average rate of change of the function
f(a) is the position function evaluated at a
f(b) is the position function evaluated at b
a is the first point in the interval
b is the second point in the interval

We can infer for our problem that the first point is 3 and the second point is 6, so a=3 and b=6. Lets replace those values in our formula:
A(x)= \frac{f(b)-f(a)}{b-a}
A(x)= \frac{f(6)-f(3)}{6-3}
A(x)= \frac{6-6^2-2-(3-3^2-2)}{3}
A(x)= \frac{-32-(-8)}{3}
A(x)= \frac{-32+8}{3}
A(x)= \frac{-24}{3}
A(x)=-8

We can conclude that the average rate of change of the function f(x) = 1 x - x2 - 2 for <span>3 ≤ x ≤ 6 is -8</span>
3 0
3 years ago
Read 2 more answers
SOLVE: 12x - 4y = 48 (For y in terms of x)
Anna71 [15]
First, we subtract 12x from both sides. We then get -4y=-12x+48. We then divide this by -4 on both sides to get the y by itself. We then get that the equation is y=3x-12. 
7 0
3 years ago
Given x = 5, y = -6, z = -2, evaluate z - yx
Andreyy89

Answer: 28

Step-by-step explanation: Plugging them in, it would be -2 - (-6)(5).

- 2 - (-30)

-2 + 30

28

8 0
3 years ago
Hi guys can some one help me with this question pls this is kinda hard pls upload in a paper i need all answer i will give them
Ulleksa [173]

Answer:

Step-by-step explanation:

3 0
3 years ago
What is the answer to 216x12-64
Licemer1 [7]

Answer:

2528

Step-by-step explanation:

First, we follow the rules of PEMDAS

Parenthesis

Exponents

Multiply

Divide

Add

Subtract

The first thing we need to do is Multiply

216 * 12

= 2592

Now we subtract

2592 - 64

= 2528

Best Of Luck,

- I.A. -

4 0
3 years ago
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