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3 years ago

Please help! I would really appreciate it!

Mathematics

2 answers:

Arte-miy333 [17]3 years ago

7 0

Answer:

Domain:28

range: 9

Step-by-step explanation:

11Alexandr11 [23.1K]3 years ago

6 0

Domain-28

Range-9

Hope this helps

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A sphere and a cone have the same volume. The sphere has a radius x and height y. The cone has a radius of 1/2x. Find the height

notka56 [123]

Answer:

h = 16x

Step-by-step explanation:

The volume of a sphere and a cone is same such that,

$V_s=V_c\\\\\dfrac{4}{3}\pi r^3=\dfrac{1}{3}\pi R^2h$

We have, r = x, R = (1/2)x, h= ? (height of the cone)

So,

$\dfrac{4}{3}\pi x^3=\dfrac{1}{3}\pi (\dfrac{x}{2})^2h\\\\4x^3=\dfrac{x^2}{4}h\\\\h=\dfrac{16x^3}{x^2}\\\\h=16x$

So, the height of the cone is equal to 16x.

8 0

3 years ago

HELP PLS, The cosine of

velikii [3]

Answer:

add/hyp

Step-by-step explanation:

using SOHCAHTOA cosine of an angle A will be adjacent/ hypotenus

8 0

3 years ago

Corey flying a kite with 105 meters of string.His string makes an angle of 42 degrees with the level ground. How high is the kit

mafiozo [28]

<u>Given</u>:

Given that Corey is flying a kite with 105 meters of string.

The string makes an angle of 42° with the ground level.

We need to determine the height of the kite.

<u>Height of the kite: </u>

The height of the kite can be determined using the trigonometric ratio.

Thus, we have;

$sin \ \theta=\frac{opp}{hyp}$

From the given data, the values are $\theta=42^{\circ}$ , opp = h (height of the kite) and hyp = 105 meters.

Substituting the values, we get;

$sin \ 42=\frac{h}{105}$

Multiplying both sides of the equation by 105, we get;

$sin \ 42 \times 105=h$

$0.669 \times 105=h$

$70.245=h$

Rounding off to the nearest meter, we get;

$h=70$

Thus, the height of the kite is 70 meters.

8 0

3 years ago

Can some one please help me on my home work please i just need some one to show me how they solved this equation answers and wor

nignag [31]

Step-by-step explanation:

well first of all you have to expand the brackets. so 5(y+2)=4(x-3)

5y+10=4x-12

then you subtract 10

5y=4x-12-10=4x-22

then divide by 5 to get the value of y

y=(4x-22)/5

3 0

3 years ago

the length of a rectangle is one more than four times its width. If the perimeter of the rectangle is 62 meteres, fing the dimen

Andrews [41]

Length (L): 4w + 1

width (w): w

Perimeter (P) = 2L + 2w

62 = 2(4w + 1) + 2(w)

62 = 8w + 2 + 2w

62 = 10w + 2

60 = 10w

6 = w

Length: L = 4w + 1 → 4(6) + 1 → 24 + 1 → 25

Answer: 6 meters x 25 meters

7 0

3 years ago