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stich3 [128]
3 years ago
6

Which of the following equations models the relationship of angle A to the length of the line segment BC in the figure below.

Mathematics
1 answer:
Anastasy [175]3 years ago
3 0
Let the line segment BD be x, then sin A = x/15
or, x = 15sinA
Also y^{2} =  x^{2} + (25)^{2}  \\ =  (15sinA)^{2} + 625 \\ =225 sin^{2} A+625 \\ y= \sqrt{225 sin^{2} A+625} 

The last option
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A cylinder and cone have the same height and radius. The height of each is 5 cm, and the radius is 2 cm. Calculate the volume of
never [62]

Answer:

The volume of a cylinder is 62.8 cm and the volume of a cone is 20.9 cm³ .

Step-by-step explanation:

Formula

Volume\ of\ a\ cylinder = \pi r^{2} h

Volume\ of\ a\ cone = \pi r^{2} \frac{h}{3}

Where r is the radius and h is the height .

As given

A cylinder and cone have the same height and radius. The height of each is 5 cm, and the radius is 2 cm.

\pi = 3.14

Thus

Volume\ of\ a\ cylinder =3.14\times 5\times 2\times 2

                                             = 62.8 cm³

Thus the volume of a cylinder is 62.8 cm³ .

Volume\ of\ a\ cone = 3.14\times 2\times 2\times frac{5}{3}

Volume\ of\ a\ cone =\frac{5\times 3.14\times 2\times 2}{3}

Volume\ of\ a\ cone =\frac{62.8}{3}

                                        = 20.9 (Approx) cm³

Thus the volume of a cone is 20.9 cm³ .

Therefore the volume of a cylinder is 62.8 cm and the volume of a cone is 20.9 cm³ .

8 0
3 years ago
Hi! Can someone help me with this, please? I would be very grateful forever!
stich3 [128]
I’m pretty sure it’s talking about the amount of water regulated to food for example how much water does gelatin have 90% why? How? Because the food produces its self with water making it absorbed and the best way the question is asking is how many __in units.
5 0
2 years ago
Sarthak wants to complete his design
Varvara68 [4.7K]

Answer:

Step-by-step explanation:

3 times 60 = 180 minutes

10 * 60 = 600 minutes

600/20 = 30 * 3 = 90 hours

8 0
2 years ago
What is the distance from Cto D?
IRINA_888 [86]

Given:

The two points C(2,-1) and D(5,3) on a coordinate plane.

To find:

The distance from C to D.

Solution:

The distance between two points is defined by the distance formula.

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

The two points are C(2,-1) and D(5,3). Using the distance formula, we get

CD=\sqrt{(5-2)^2+(3-(-1))^2}

CD=\sqrt{(3)^2+(3+1)^2}

CD=\sqrt{(3)^2+4^2}

On further simplification, we get

CD=\sqrt{9+16}

CD=\sqrt{25}

CD=5

The distance from point C to D is 5 units. Therefore, the correct option is A.

8 0
3 years ago
Can you please help me?​
lozanna [386]

Answer:

7/10    70%

Step-by-step explanation:

0.7 = 7/10  0.7 x 10 = 70%

8 0
3 years ago
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