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Elena-2011 [213]
3 years ago
10

What is the solution to this equation?

Mathematics
2 answers:
tresset_1 [31]3 years ago
8 0

Answer:

x = 9

Step-by-step explanation:

First, we want to isolate variable x on the left side of the equation. We can do this by adding 13 to both sides.

x - 13 + 13 = - 4 + 13

x = 9

Anit [1.1K]3 years ago
4 0

Answer:

x=9

Step-by-step explanation:

to find the answer, add 13 to both sides of the equation.

x-13=-4\\ +13 = +13 \\x=9

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The volume of a cylinder is 30 pie cubic units. A cone shares the same base. The height of the cone is twice the height of the c
bija089 [108]

<u>Given</u>:

The volume of a cylinder is 30 \pi cubic units.

A cone shares the same base.

The height of the cone is twice the height of the cylinder.

We need to determine the volume of the cone.

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

Let h denote the height of the cylinder.

Let H denote the height of the cone.

Since, it is given that, the height of the cone is twice the height of the cylinder, we have;

H=2h

<u>Volume of the cylinder:</u>

The formula to determine the volume of the cylinder is

V=\pi r^2 h

Since, volume of the cylinder is 30 \pi, we get;

30 \pi = \pi r^2 h -------(1)

<u>Volume of the cone:</u>

The formula to determine the volume of the cone is

V=\frac{1}{3} \pi r^2 H

Substituting H=2h, we get;

V=\frac{1}{3} \pi r^2 (2h)

V=\frac{2}{3} \pi r^2 h

Substituting equation (1), we get;

V=\frac{2}{3} (30 \pi)

V=20 \pi

Thus, the volume of the cone is 20π

Hence, Option C is the correct answer.

4 0
3 years ago
800+900×25-65(89+5)-12÷67-7​
vlada-n [284]

Answer:

As there is Bracket lats solve it first but as there is '-' sign before the bracket sign in the bracket will change. so we will have,

'800+900×25-65(89-5)-12÷67-7'

Solving the bracket gives us:

'800+900×25-65(84)-12÷67-7'

Now avoiding the Bracket:

'800+900×25-5460-12÷67-7'

Now first we have to do MUltiplication, so we will get,

'800+22500-5460-12÷67-7'

Now let's do the division, so we will get,

'800+22500-5460-0.17-7'

Now lets do the additions and subtractions we will get,

<h2><u>17,832.83</u></h2>
4 0
2 years ago
Find the variables.<br> (2x)"<br> 54<br> x=
aev [14]

Answer: x= 108

Step-by-step explanation:   (2x)" 54 x= 108x^2= (2^X3^3x^2 )= 108

7 0
2 years ago
79
Zinaida [17]

Answer: 43.988

Step-by-step explanation: The formula for the circumference of a circle is the diameter multiplied by pi. Since the diameter is 14 and it is telling us to use 3.142 as pi, we can multiply the two and get the answer.

6 0
2 years ago
Instructions: Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
GuDViN [60]

Answer:

A) 6

B)5

C)4

D)3

E)1.76

F)1.52

G)1.5

H)1.4

I)1/6

J)2/3

props to the first guy that said it

6 0
3 years ago
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