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zvonat [6]
3 years ago
8

Assume that the radius r of a sphere is expanding at a rate of 50 cm/min. Determine the rate of change in surface area at t = 2

min, assuming that r = 20 at t = 0
Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
4 0
Hay if you neeed help look up math papa  this wedsite will realy help you
hope that helps
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Solve the system of linear equations.
RoseWind [281]

Answer:

1. No solution

2. Infinite solutions

Step-by-step explanation:

1. To solve the system, set the equations equal to each other and solve for x.

2x - 5 = 2x + 7

-5 = 7

This is a false statement. This means there is no solution.

2. To solve the system, graph each equation.

y = -3/4 x - 5/2 has a y-intercept -5/2 and slope -3/4.

3x + 4y = -10 converts to y = -3/4x -5/2.

This graphs as the exact same line. This system has infinite solutions.

4 0
3 years ago
2. Write the expressions using an exponent. Then solve.
Maurinko [17]
B. Five cubed because there at 5 2s there and 2*2*2*2*2 would be the same thing as saying 5^2
7 0
3 years ago
Read 2 more answers
Someone please help me answer this!!
dybincka [34]

Answer:

17.9 units is the answer

Step-by-step explanation:

points are (-7,-2) and (9,6)

Pythagorean theorem can be written as,

d=\sqrt{(x_2-x_1)^2 + (y_2-y_1)^2} \\\\d=\sqrt{9-(-7))^2 + (6-(-2))^2}\\\\d=\sqrt{(16)^2+(8)^2} \\\\d=\sqrt{256+64} \\\\d=\sqrt{320} \\\\d=17.88

Rounding off,

d = 17.9 units

7 0
3 years ago
.In which situation could the quotient of
saveliy_v [14]

Answer:

Option D -  8 children

Step-by-step explanation:

Twenty four divided by eight the equation is irelated to which MCQ

24/3 = 8

Option D, A cookie jar contains 24 cookies. Each child receives 3 cookies.

The right answer is 24 cookies that are in a jar eaten by children,

If each child get 3 cookies,  

Hence, 24/3 the answer will be = 8

Means 8 children are there to eat 3 cookies that is 24.

3 0
3 years ago
Which phrase is usually associated with addition?
Dovator [93]

Answer: plus

Step-by-step explanation:

3 0
3 years ago
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