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2 years ago

PLEASE HELP!

Mathematics

1 answer:

Radda [10]2 years ago

7 0

Answer:

Answer: 67.97%

Step-by-step explanation: BEWARE: THE ANSWER IS NOT 39.56%.

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i need help finding the height of a cone and i do not know where to start. any help will be greatly appreciated:))

Aliun [14]

Answer:

h=12

Step-by-step explanation:

First look at the formula for finding the volume of a cone- $V=\pi r^{2} \frac{h}{3}$

Next substitute any variables for values you already know- $144\pi =\pi (6)^{2} \frac{h}{3}$

Then solve the equation.

3 0

2 years ago

What the answer fast pls

Marrrta [24]

Answer:

x= 20 and y= 12

Step-by-step explanation:

nickel is 5 cents and quarter is 25 cents,

let x be number of nickels and y be number of cents

x+y = 32

5x + 25y = 400

you get x= 20 and y= 12

7 0

2 years ago

Dang it these are tricky for me can somebody help?

erica [24]

Answer:

It has no perfect square factors, unless you count 1 = 1^2. That's sort of a degenerate case we don't usually count, since every integer has that factor. We would usually say that 1290 is a square-free integer. Hope this helps!!

5 0

3 years ago

Wonder if someone can help me with my math work please

stellarik [79]

Answer:

The slope is negative. The relationship is proportional

Step-by-step explanation:

6 0

2 years ago

Find the standard form of the equation of the parabola with a focus at (7, 0) and a directrix at x = -7.

Alecsey [184]

Answer:

y^2 = 28x

Step-by-step explanation:

Since the directrix is horizontal, use the equation of a parabola that opens left or right.

(y−k)^2 = 4p(x−h)

Find the vertex.

(0,0)

Find the distance from the focus to the vertex.

p = 7

Substitute in the known values for the variables into the equation

(y−k)^2 = 4p(x−h).

(y−0)^2 = 4(7)(x−0)

Simplify.

y^2 = 28x

7 0

3 years ago

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