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TEA [102]
3 years ago
9

On Monday, Taylor lost $20 to

Mathematics
2 answers:
saw5 [17]3 years ago
3 0

Answer:

32

Step-by-step explanation:

Aleksandr-060686 [28]3 years ago
3 0

Answer:

32

Step-by-step explanation:

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A turtle is at the bottom of a 20 foot well. Each day it crawls up 4 feet but it slips back 2 feet. After how many days will the
Zarrin [17]
It will take 10 days to climb to 20 foot well, because he crawls 2 feet a day.
3 0
3 years ago
Will the measurements represent the side lengths of a right triangle?
sleet_krkn [62]
Yes it will, 6cm and 17.5
4 0
3 years ago
What is the value of x ?
jolli1 [7]

Answer:

x=3

Step-by-step explanation:

180-120=60

60+15x+5+22x+4=180

69+37x=180

37x=111

x=3

4 0
3 years ago
Pls help
KATRIN_1 [288]

Answer:

169.04 in² (nearest hundredth)

Step-by-step explanation:

Surface area of a cone = \pir² + \pirl

(where r = radius of the base and l = slant height)

Given slant height l = 10 and surface area = 188.5

Surface area  = \pir² + \pirl

188.5 = \pir² + 10\pir

\pir² + 10\pir - 188.5 = 0

r = \frac{-10\pi +\sqrt{(10\pi )^2-(4\times\pi \times-188.5)} }{2\pi } = 4.219621117...

Volume of a cone = (1/3)\pir²h

(where r = radius of the base and h = height)

We need to find an expression for h in terms of l using Pythagoras' Theorem a² + b² = c², where a = radius, b = height and c = slant height

r² + h² = l²

h² = l² - r²

h = √(l² - r²)

Therefore, substituting found expression for h:

volume of a cone = (1/3)\pir²√(l² - r²)

Given slant height l = 10 and r = 4.219621117...

volume = 169.0431969... = 169.04 in² (nearest hundredth)

5 0
2 years ago
Read 2 more answers
Make a subject of r = square root of a / 3
hodyreva [135]
Multiply both sides by 3 to get:

3r = sqrt(A)

Square both sides:

9r^2 = A
4 0
3 years ago
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