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IgorC [24]
3 years ago
15

Please i need the answer ASAP!!!! will mark brainliest if i can!

Mathematics
1 answer:
Maslowich3 years ago
5 0

A bucket of paint has spilled on a tile floor. The paint flow can be expressed with the function r(t) = 3t, where t represents time in minutes and r represents how far the paint is spreading.

The flowing paint is creating a circular pattern on the tile. The area of the pattern can be expressed as A(r) = πr2.

Part A: Find the area of the circle of spilled paint as a function of time, or A[r(t)]. Show your work.

Part B: How large is the area of spilled paint after 10 minutes? You may use 3.14 to approximate π in this problem.

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The surface area of a cube is 400 millimeters what is the surface area of a similar cube that is larger by a scale factor of 3
yuradex [85]
Larger by 3 means that the legnths of the sides are larger by 3 times
so we have a cube that has area of 400
surface area=legnth times width times 6 since it is a cube and legnth=width
so
SA=w^2 times 6

6w^2=400
divide by 6
w^2=200/3
square root both sides
w=√(200/3)
so w is 3 times larger
(3w)^2 times 6 is new area

w=√(200/3)
(3√(200/3))^2 times 6=9(200/3) times 6=600 times 6=3600

answer is 3600 ml^2
3 0
3 years ago
A student thinks that (1, 2) is a solution to y = 2x - 3. While checking the solution, the student gets 1 = 2(2) -3. What error
BabaBlast [244]
He put in the value of x into y
and the value of y in x
if that confuse you here this is what it will look like
(x,y)->(y,x)
6 0
4 years ago
Need a quick answer please
galben [10]

Answer: angle 1: 62 degrees, angle 2:45 degrees, angle 3: 24 degrees

Step-by-step explanation:

7 0
3 years ago
*there is a picture* how do you solve this? Explain please!
emmasim [6.3K]
350 more compact car spaces are available

2/5 = 0.4 = 40%
40% of 1,000 is 400
400 spots are for compact cars

On Tuesday tner were 150
So there is 350. more spots available 400-150 = 350
4 0
3 years ago
Figure b is a scaled copy of figure a. What is the scale from figure a to figure b
alukav5142 [94]

Answer:

The scale of this figure 4 to 1

8 0
3 years ago
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