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ella [17]
3 years ago
13

Please help me or i will fail

Mathematics
1 answer:
DerKrebs [107]3 years ago
3 0
We gots a squrae and 1/4 circle
circle=pir²
square=side²
side=r=8
so

area=8²+(1/4)pi8²
area=64+(1/4)pi64
aer=64+16pi
area=64+50.24
area=114.24 cm²
2nd option
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Logan and her friend went out to dinner and spent $18.50. They left a tip of $2.59.
Basile [38]
If you are suppose to find how much the spent all together then it would be 21. 09

8 0
3 years ago
Gravel is being dumped from a conveyor belt at a rate of 15 ft3/min, and its coarseness is such that it forms a pile in the shap
gayaneshka [121]

Answer:

0.13 ft/min

Step-by-step explanation:

We are given that

\frac{dV}{dt}=15ft^3/min

We have to find the increasing rate of change of height of pile  when the pile is 12 ft high.

Let d be the diameter of pile

Height of pile=h

d=h

Radius of pile,r=\frac{d}{2}=\frac{h}{2}

Volume of pile=\frac{1}{3}\pi r^2 h=\frac{1}{12}\pi h^3

\frac{dV}{dt}=\frac{1}{4}\pi h^2\frac{dh}{dt}

h=12 ft

Substitute the values

15=\frac{1}{4}\pi(12)^2\frac{dh}{dt}

\frac{dh}{dt}=\frac{15\times 4}{\pi(12)^2}

\frac{dh}{dt}=0.13ft/min

7 0
3 years ago
The lengths of the sides of a triangle are 11.25 inches, 9.25 inches, and 10.25 inches. What is the perimeter of the triangle?
solong [7]

Perimeter of the triangle is 30.75 inches.

Step-by-step explanation:

  • Step 1: Given sides of the triangle = 11.25 in, 9.25 in, 10.25 in
  • Step 2: Formula for perimeter of triangle = length of sides of the triangle
  • Step 3: Substitute in the formula

Perimeter = 11.25 + 9.25 + 10.25

= 30.75 inches

8 0
3 years ago
Help with this !!! best answer excepted
Allushta [10]
Its 6 I think hope this helps


6 0
3 years ago
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A square has a side length of 21 + 11s. Select TWO equivalent
Misha Larkins [42]

Answer:

I choose option c hope it helps

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3 years ago
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