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prohojiy [21]
3 years ago
6

What is the surface area of a cone with a radius of 5 and a height of 21 in terms of pi PLZ HELP

Mathematics
1 answer:
klio [65]3 years ago
3 0

Answer:

the surface area is around 417.63

Step-by-step explanation:

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PLSSS HELP IF YOU TURLY KNOW THISS
lana66690 [7]

Answer:

3^13

Step-by-step explanation:

6 0
3 years ago
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PLEASE HELP!<br> simplify this expression <br><br> 4(7x + 5y)
BARSIC [14]

28x + 20y should be it.

4 0
3 years ago
Manny is an online student who currently owns an older car that is fully paid for. He drives, on average, 110 miles per week to
Step2247 [10]

Answer:

The new car costs more

Old car = $5062.125

New car = $7161.357

Step-by-step explanation:

Manny drives an average of 110 miles per week with his old car. The old car gets 16 miles per gallon. The cost per gallon is $2.65 repair and Maintainance costs an average of $740 per year.

For the old car, to find the amount spent on the car we have

110/16 * 2.65 = $18.21875 / week

There are 52 weeks in a year. We have

10.21875*52 = $ 947.375

947.375 + 740

= $1687.375

= 1687.357 * 3

= $5062.125

The new car cost $6500 over a three year loan process.

The car gets 28 miles per gallon. It requires a maintenance f $10 per month. For the new car to find the amount, we have

110*28 * 2.65 *52 = $541.357

541.357 + 10(12) + 6500

= $7161.357

5 0
3 years ago
How old are you now ?<br>​
user100 [1]

Answer: 14

Step-by-step explanation:

4 0
3 years ago
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Waht is the value of ((2/3)^0)^-3​
mestny [16]

Answer:

\left(\left(\frac{2}{3}\right)^0\right)^{-3}=1

Step-by-step explanation:

\mathrm{Apply\:exponent\:rule}:\quad \left(a^b\right)^c=a^{bc},\:\quad \:a\ge 0\\\left(\left(\frac{2}{3}\right)^0\right)^{-3}=\left(\frac{2}{3}\right)^{0\cdot \left(-3\right)}\\=\left(\frac{2}{3}\right)^0\\=1

<3

Red

6 0
3 years ago
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