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MArishka [77]
3 years ago
9

The volume of a cone with a height of 9 inches and a base area of 7 square inches is 21 cubic inches.

Mathematics
2 answers:
RUDIKE [14]3 years ago
4 0
8808730302928172729922
svetlana [45]3 years ago
4 0
The first step in finding the surface area of a cone is to measure the radius of the circle part of the cone. The next step is to find the area of the circle, or base. The area of a circle is 3.14 times the radius squared (<span>πr2</span><span>). Now, you will need to find the area of the cone itself. In order to do this, you must measure the side (slant height) of the cone. Make sure you use the same form of measurement as the radius.
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Which choice best satisfies the formula for the area of a square whose sides are s inches long?
Sergeu [11.5K]

the complete question in the attached figure


we have that the area of a square A= s*s

if the side is s inches long

then A= s² in²

therefore

the answer is the option D  A=s² sq in

7 0
3 years ago
Read 2 more answers
A large cheese pizza costs $18. Each topping you add on costs $1.50. How much would it cost to get a large cheese pizza with cc
grigory [225]

Answer:

\$18+\$1.50c

Step-by-step explanation:

Let

y------> the total cost

c-----> the number of topping

we know that

y=\$18+\$1.50c ----> linear equation that represent the situation

7 0
3 years ago
Write the equation of a parabola with focus at (1,-4) and a directrix at X=2
konstantin123 [22]

Answer:

The equation of a parabola is

x =  \frac{1}{4(f - h)} (y - k) ^{2}  + h

Step-by-step explanation:

(h,k) is the vertex and (f,k) is the focus.

Thus, f = 1, k = −4.

The distance from the focus to the vertex is equal to the distance from the vertex to the directrix: f - h = h - 2.

Solving the system, we get h = 3/2, k = -4, f = 1.

The standard form is:

x =  -  \frac{y ^{2} }{2}  - 4y -  \frac{13}{2}

The general form is:

2x +  {y}^{2}  + 8y + 13 = 0

The vertex form is:

x =  -  \frac{(y + 4) ^{2} }{2}  +  \frac{3}{2}

The axis of symmetry is the line perpendicular to the directrix that passes through the vertex and the focus: y = -4.

The focal length is the distance between the focus and the vertex: 1/2.

The focal parameter is the distance between the focus and the directrix: 1.

The latus rectum is parallel to the directrix and passes through the focus: x = 1.

The length of the latus rectum is four times the distance between the vertex and the focus: 2.

The eccentricity of a parabola is always 1.

The x-intercepts can be found by setting y = 0 in the equation and solving for x.

x-intercept:

( -  \frac{13}{2}  \: ,0)

The y-intercepts can be found by setting x = 0 in the equation and solving for y.

y-intercepts:

(0, - 4 -  \sqrt{3)}

(0, - 4 +  \sqrt{3)}

3 0
2 years ago
If 5.7×10^k= 570,000, what is the value of k?
antiseptic1488 [7]

Answer:

5

Step-by-step explanation:

570000/5.7 is 100000

100000 is 10^5

6 0
3 years ago
What is the slope intercept of -4 and y-intercept -1
Brut [27]

Answer:

Points are given corresponding to (-8,0) and (0,-11), and you want line's equation in the form y=mx+b. Understand, you already have b=-11. If you too understand ...

Step-by-step explanation:

6 0
3 years ago
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