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Artemon [7]
3 years ago
14

Can someone please tell me the formula for finding the volume of a cone

Mathematics
1 answer:
Crazy boy [7]3 years ago
4 0
V= 1/3 pie(r) squared times height

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Which of the following is a composite number? A. 91 B. 139 C. 13 D. 29
Nonamiya [84]
A composite number is a number that's not prime. A prime number is a number who only has 2 factors (1 and itself). A composite number has multiple factors.

For example;
7 is prime, as the factors of 7 are only 1&7.
14 is composite, as there are 4 factors (more than 2); 1&14, 2&7.

91 is composite, as it has the following factor pairs; 1&91, 7&13.

139 only has 1&19, making it prime.
13 only has 1&13, making it prime.
29 only has 1&13, making it prime.

Your answer is A.) 91.

I hope this helps!

5 0
3 years ago
Read 2 more answers
Can someone help me please
Vesnalui [34]

Answer:

72

Step-by-step explanation:

for the rectangles you use the formula :

a=lw        3x6=18x2=36    +    4x6=24

and for the triangles you use:

a=1/2bh        3x4=12/2   +    3x4=12/2

then you add it all together

36+24+12=72

8 0
2 years ago
(3a - b) / (2a + b) if a = 4 and b = -3
KATRIN_1 [288]

(3x4)-(-3)/(2x4)+(-3) =

= 12+3/8-3

=15/5

=3

5 0
3 years ago
Read 2 more answers
BRAINLIEST ANSWER TO FIRST ANSWERER!!
Natalija [7]

Answer:

13 cms

Step-by-step explanation:

By Pythagoras:-

x^2 = 12^2 + 5^2

x^2 = 144 + 25

x^2 = 169

x  = √169

= 13

5 0
3 years ago
place the following steps in order to complete the square and solve the quadratic equation, x^2-6x+7=0
MatroZZZ [7]
We have that
x²<span>-6x+7=0
</span>Group terms that contain the same variable
(x²-6x)+7=0
Complete the square  Remember to balance the equation
(x²-6x+9-9)+7=0
Rewrite as perfect squares
(x-3)²+7-9=0
(x-3)²-2=0
(x-3)²=2
(x-3)=(+/-)√2
x=(+/-)√2+3

the solutions are
x=√2+3
x=-√2+3



4 0
3 years ago
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