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Lilit [14]
3 years ago
8

A company makes wax candles in the shape of a cylinder. Each candle has a diameter of 8 inches and a height of 3 inches. How muc

h wax will the company need to make 120 candles?
Use 3.14 for pie, and do not round your answer.
Mathematics
1 answer:
Sveta_85 [38]3 years ago
3 0

Answer:

18,086.4 cubic units

Step-by-step explanation:

The volume of one such cylinder can be computed by multiplying the height by pi by the radius squared: 3×3.14×4²=150.72.

If you want to make 120 candles, multiply that number by 120: 150.72×120=18086.4.

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What’s the correct answer for this question?
Brut [27]

Answer:

C.

Step-by-step explanation:

First finding height using Pythagoras theorem

(H)²=(B)²+(P)²

8.2²=5.4²+P²

P² = 67.24 - 29.16

P² = 38.08

P = 6.2

Now

Volume of cone = (1/3)πr²h

= (1/3)(3.14)(5.4)²(6.2)

= (1/3)(567.9)

= 189.2 cm³

6 0
3 years ago
What is the value of cos x°?
PolarNik [594]

Answer:

We know,

\cos(x)  =  \frac{b}{h}  =  \frac{15}{17}

so

\cos(x)  = 0.88

.....Hope this helps:)

3 0
2 years ago
one x-intercept for a parabola is at the point (-6,0) find the other x-intercept for the parabola defined by this equation y=x^2
Tanya [424]
Hello.

First off, you can factor this equation to find the missing x-intercept.

y = x² + 8x + 12
y = (x + 6)(x + 2)

Then, you can use the zero product property to find the x values.

x + 6 = 0       x + 2 = 0
    - 6  - 6          - 2  - 2
x = -6            x = -2

As an ordered pair: (-6, 0) and (-2, 0)

Thus, your answer is x = -6, -2.
6 0
3 years ago
Put the following equation of a line into slope-intercept form, reducing all fractions.
Reil [10]

Answer:

y = (-1/5)x - 9

Step-by-step explanation:

15y = -3x - 135

Divide both sides by 15

y = (-1/5)x - 9

3 0
3 years ago
A rectangular lawn is 24 feet wide by 32 feet long. A sidewalk will be built along the inside edges of all four sides. The remai
levacccp [35]
So the original lawn has an area
24 × 32 = 768 the new lawn will have area 425
this means the area of the sidewalk will be 768-425=343
now the sidewalk is a certain width of we draw it out and label it x we see the lawn has an area of
(32 - 2x)(24 - 2x) = 425 \\ 768 - 64x - 48x + 4 {x}^{2}  = 425 \\ 4 {x}^{2}  - 112x  + 343 = 0
use the quadratic formula to solve. then you will know how wide the sidewalk is. I will attach picture

5 0
4 years ago
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