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Daniel [21]
3 years ago
6

SOMEONE PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
aivan3 [116]3 years ago
7 0
Part A: Find the area of the circle of spilled milk as a function of time, or A[r(t)]
<span>πr^2 = π(4t)^2  =π4^2*t^2=  16πt^2 </span>

<span>Part B: A= 16π(4)^2 = 256π= 803.84 

here ya go c:</span>
Rina8888 [55]3 years ago
4 0

Answer:

Part A:

Setting up the problem: A[r(t)] =  π (4t)^2

= Multiplying: A[r(t)] = 3.14 x 16t^2  

= Solving/Answer:  A[r(t)] = 50.24t^2

Part B: Area after 4 min of spilling = t=4

= r (4)= 4x4 =16

= Setting up the problem: A(16) = 3.14 x 16^2

= Multiplying:  A(16)= 3.14 x 256

= Solving/Answer: A(16) = 803.84

= The spilled area of milk after 4 min is 803.84.

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Which expression is NOT equivalent to −38⋅(−4+12)? Drag this expression to the box.
lesya [120]

I had this question so here's the answer and explanation! :)

Answer:

The answer to your question is the first option :D

Step-by-step explanation:

Original expression

                                -3/8 (-4 + 1/2)

First option    -3/8 (-4)  + (3/8)(1/2)       This option is not equivalent because

                                                             they forgot the negative sign of the

                                                             second term.

Second option (-3/8)(-4) + (-3/8)(1/2)    This option is equivalent to the

                                                              original. Distributive property

Third option    (-3/2)(-3 1/2)                 This option is equivalent to the original

Fourth option  (-3/8)(-3) + (-3/8)(-1/2)  This option is equivalent to the original

HOPE THIS HELPS :)

5 0
3 years ago
Read 2 more answers
Jolene earned a 75% on her last quiz. If there were 8 questions, how many did she answer correctly
sveticcg [70]

Answer:

6

Step-by-step explanation:

100% / 8 questions= each question is worth 12.5 points

12.5*6=75

Therefore 6 were answered correctly

3 0
3 years ago
The horizontal viewing angle is the angle subtended by a straight line from
SSSSS [86.1K]

The measure of the arc is given as π/2. See the explanation below.

<h3>What is an arc?</h3>

An "arc" is a curve that connects two points in mathematics.

It can also be depicted as a section of a circle. It is essentially a portion of a circle's circumference. An arc is a kind of curve.

<h3>What is the calculation for the above solution?</h3>

Note that the viewing angle is 45°.

Thus, the center angle is:
45 X 2 = 90°

Measure of the arc therefore is:
= (π/180°) x 90

= π/2

Learn more about arcs at:
brainly.com/question/2005046
#SPJ1

7 0
2 years ago
Subtract. <br> –84 – 55<br> a. –29<br> b. –139<br> c. 29<br> d. 139
Hitman42 [59]
-84 - 55 = -139 Here both have same sign (-) so u add and put the common sign(-) .... So the answer is option B ( -139)... Hope it helps!!!
8 0
3 years ago
Charlene had 5,750 pieces of penny candy. She sold 3/5 of them and divided rest into 5 equal bags to give her friends for Hallow
Musya8 [376]
(3/5)*5750=3450
3450÷5=690
6 0
3 years ago
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