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aalyn [17]
4 years ago
14

Find the volume of the following cone

Mathematics
1 answer:
mezya [45]4 years ago
4 0

Answer:

V≈615.75

Step-by-step explanation:

V= 3.14r^2 h/3 = 3.14 X 7^2 X 12/3 ≈ 615.75216

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Suppose for some value of x the solution to the equation 2.5(y−x)=0 is y = 6. What must be true about x?
Varvara68 [4.7K]

Step-by-step explanation:

In this case, you input the value of y (y = 6) into the equation ( 2.5(y-x)= 0)

2.5(6-x) = 0

Open the bracket,

(2.5×6)-2.5x= 0

Collect like terms.

2.5x= 2.5×6

Divide both sides by the coefficient of x (2.5)

x = 6

So,

x= 6 is true.

.

Substituting 6 for x in the equation,

2.5(6-6)= 0

2.5•0 = 0

0= 0

Which is also true.

7 0
2 years ago
The area of the triangle is 28.7 square centimeters. What is the base length of the triangle in centimeters?
Montano1993 [528]

In order to derive the base of a triangle from its area, you need its height as well.

In fact, if we solve the area formula for the base, we have

A=\dfrac{bh}{2} \iff 2A = bh \iff b=\dfrac{2a}{h}

So, the base length would be

b=\dfrac{2\cdot 28.7}{h} = \dfrac{57.4}{h}

where h is the height relative to the base you're interested in.

3 0
3 years ago
Which ordered pair is the solution to the system of linear equations -5x+y=26 and 2x-7y=16
Yakvenalex [24]
The answer is D. (-6,-4)
3 0
3 years ago
0I NEED HELP PLS........
emmasim [6.3K]

Answer:

Not equivalent

Step-by-step explanation:

Distribute the negative in the parentheses. It basically multiplying everything inside by -1.

( \frac{1}{2}  + 6x + 3)

add like terms

6x + 3 \frac{1}{2}

Not equivalent since the 6x is positive

6 0
3 years ago
Read 2 more answers
4 is the _____ of 4n
murzikaleks [220]

Answer:

4 is the coefficient of 4n

Step-by-step explanation:

8 0
3 years ago
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