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Stels [109]
2 years ago
9

Y is inversely proportional to x, when Y = 2, x = 4.Find the value of x when Y = 4.

Mathematics
1 answer:
ratelena [41]2 years ago
8 0

The value of x when y =4 is 2

<h3>How to solve for x?</h3>

An inverse proportion is represented as:

k = yx

Where

k represents the constant of proportion

When y = 2, x = 4.

So, we have:

k =2 * 4

k = 8

Substitute k = 8 in k = yx

So, we have:

yx = 8

When y = 4, we have:

4x = 8

Divide by 4

x = 2

Hence, the value of x when y =4 is 2

Read more about variation at:

brainly.com/question/14254277

#SPJ1

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Find the lateral area of the cone in terms of π.
Andreyy89

Answer:

15\pi\ cm^{2}

Step-by-step explanation:

we know that

The lateral area of the cone is equal to

LA=\pi rl

where

r is the radius of the base

l is the slant height

we have

r=3\ cm

Applying the Pythagoras Theorem find the slant height

l^{2}=3^{2} +4^{2}\\ \\l^{2}=25\\ \\l=5\ cm

substitute in the formula

LA=\pi (3)(5)=15\pi\ cm^{2}

8 0
3 years ago
Find the exact circumference of a circle with the given radius. 5 inches C = 2.5π in. 10π in. 25π in.
docker41 [41]
The circumference, C, of a given circle may be calculated through the equation,
         
                                   C = 2πr

where r is the radius. 

Substituting the known values from the given in this item,
                                    C = 2(π)(5 in)
                                    <em>C = 10π in</em>

Thus, the answer is this item is the second choice. 
5 0
3 years ago
PLEASE I NEED HELP 10 points (dont waste them) What is the area of this figure?
meriva

Answer:

1280

Step-by-step explanation:

I think it is 1280 because 20*16*8/2=1280. I am not 100% sure.

4 0
3 years ago
If (x, 3.4) is a solution to the equation 3x – 5y = 55, what is the approximate value of x?
Whitepunk [10]
The answer is 5(11+y)/3
7 0
3 years ago
Read 2 more answers
Find the missing angle. solve for ?<br>PLZ HELP =&lt;​
m_a_m_a [10]

Answer:

70 degrees

Step-by-step explanation:

180-120=60

180-(60+50)=70

3 0
3 years ago
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