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erik [133]
3 years ago
15

Help help help help help​

Mathematics
1 answer:
shusha [124]3 years ago
3 0
Cone volume = pi x radius^2 x height / 3
392.5 = pi x radius^2 x 15 / 3
1177.5 = pi x radius^2 x 15
78.5 = pi x radius^2
24.99 = radius^2
radius = 4.999
Diameter = 9.998
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Solve the equation<br><br> 1 . J + -2 = -22
olganol [36]

J + -2 = -22

Adding a negative number changes the equation to subtract ruin:

J - 2 = -22

Now add 2 to both sides to get the answer:

J = -20

7 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIEST
mars1129 [50]

Answer:

B

Step-by-step explanation:

8 0
3 years ago
Bill booked a ride to the airport. If it rains, the traffic will be bad and the probability that he will miss his flight is 0.06
kvasek [131]

Answer:0.614

Step-by-step explanation:

Given

Probability he will miss flight if it rains=0.06

Probability he will miss flight it does not rain=0.01

Given the probability of rain=0.21

Therefore Probability that it will not rain=1-0.21=0.79

Probability that he will miss the flight =0.21\times 0.06+0.79\times 0.01=0.0205

P(actual raining and he missed the flight| he miss the flight)=\frac{0.21\times 0.06}{0.21\times 0.06+0.79\times 0.01}

=\frac{0.0126}{0.0205}=0.614

7 0
3 years ago
Ryan has a rope that is 3 yards long. Her brother gave her another rope that is 4 yards long. She needs 20 feet of rope to play
mr Goodwill [35]

Answer:

Yes

Step-by-step explanation:

7 yards of rope is the same as 21 feet of rope. The required amount of rope is 20, meaning that it is possible to play double dutch.

6 0
2 years ago
The digit in the tens place of a two digit number is three times that in the units place. If the digits are reversed the new num
S_A_V [24]
We could do it with algebra.  But we can also do it the long way, which is
shorter than the algebraic way.

The digit in the tens place is 3 times the digit in the units place.
So the number MUST be
31, or
62, or
93 .
It can't be anything else.

Now here they are again, with the reverse of each one:

31 . . . 13      The new number is  18 less.
62 . . . 26      The new number is  36 less.
93 . . . 39      The new number is  54 less.

Obviously, the original number is 62.
 
4 0
3 years ago
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