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bazaltina [42]
3 years ago
6

What is the radius of 28mm

Mathematics
1 answer:
lord [1]3 years ago
8 0
If you are talking about radius of circle it is 2463
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Let f(x) =x+5 and g(x)=x^2-3 then f(g(x)) =?
guajiro [1.7K]

Answer:

Option (a) is true.

Step-by-step explanation:

Given the function

f(x)=x+5

g\left(x\right)=x^2-3

(f∘g)(x) = f(g(x)) = f(x²-3) = (x²-3)+5

                                      = x² + 2

Thus,

f(g(x)) = x² + 2

Therefore, option (a) is true.

6 0
3 years ago
Sodium chlorate crystals are easy to grow in the shape of cubes by allowing a solution of water and sodium chlorate to evaporate
Setler79 [48]

Answer:

48 mm ^ 2

Step-by-step explanation:

We know we have a cube of side x, therefore the volume of that cube will be equal to:

V = x ^ 3, because it is a cube and each side is the same.

Now the derivative of the volume with respect to the length (that is, x) would be:

dV / dx = 3 * (x ^ 2)

They tell us that x takes a value of 4, replacing we have:

dV / dx = 3 * (4 ^ 2) = 48

That is, 48 mm ^ 2 would be the value of dV / dx when x is equal to 4 mm.

6 0
3 years ago
What are the x-intercepts of 4x^ + 8x - 5
mojhsa [17]
Assuming the exponent is supposed to be "^2" your equation will read:

4x² + 8x - 5

It must set equal to y to be a valid function and the y must be set equal to zero to find x-intercepts.

4x² + 8x - 5 = 0
4x² - 2x + 10x - 5 = 0
2x(2x - 1) + 5(2x - 1) = 0

(2x + 5)(2x - 1) = 0

Set each binomial equal to zero.

2x + 5 = 0
2x = 0 - 5
2x = - 5
Divide both sides by 2
x = - 5/2

2x - 1 = 0
2x = 0 + 1
2x = 1
x = 1/2

Your x-intercepts are x = - 5/2, 1/2 or (- 5/2, 0) and (1/2, 0)
6 0
3 years ago
What does 10^2-2(10+5) equal
Nookie1986 [14]

Answer:70

Step-by-step explanation:

10^2 =100

-2(10+15) = -2(15)=-30

100-30= 70

4 0
3 years ago
Plz help me it’s emergency
BaLLatris [955]

Answer:

idk

Step-by-step explanation:

1/4 can also be written as .25

1 divided by 4 is .25

114 times .25 = answer

154 times .25  = answer

3 0
3 years ago
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