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horrorfan [7]
4 years ago
9

How to find the scale factor, ratio of area, & ratio of volume?

Mathematics
1 answer:
Andreas93 [3]4 years ago
3 0

Step-by-step explanation:

If the scale factor of two similar solids is a: b:. then

(1) the ratio of corresponding perimeters is a:b

(2) the ratio of the base areas, of the lateral areas, and of the total areas is a^2: b^2

(3) the ratio of the volumes is a^3:b^3

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??????????????????????
gtnhenbr [62]

Answer:

110 degrees

Step-by-step explanation:

I don't know if that is correct.

6 0
3 years ago
The number of bacteria in a certain culture doubled every hour. If there were 30 bacteria present in the culture initially, how
vichka [17]

Answer:

The number of bacteria after 8th will be 3840

Step-by-step explanation:

Given the initially 30 bacteria present in the culture.

Also, the number of bacteria got doubled every hour.

So, using the equation

A=A_0r^{n-1}

Where A is number of bacteria after n hours.

A_0 is bacteria present initially.

r is the common ration, in our problem it is given that bacteria doubles every hour. So, r=2

And n is the number of hours. In our problem we need amount of bacteria at the end of 8th hours. So, n=8

Plugging values in the formula we get,

A=30(2)^{8-1}\\A=30\times 2^7\\A=30\times 128\\A=3840

So, number of bacteria after 8th will be 3840

3 0
3 years ago
Which numbers in the set of numbers make the inequality 14x+3>5 true?
trapecia [35]
All of them cause if u didnt have them it wouldent be a question
8 0
3 years ago
Read 2 more answers
A right-angled triangle has sides which are 5 inches and 12 inches. How long is the triangle's hypotenuse?
Andrew [12]

Answer:

13 inches

Step-by-step explanation:

Use the Pythagorean Theorem:

a^2 + b^2 = c^2

(5)^2 + (12)^2 = c^2

c^2 = 169 in^2

c = 13 inches

4 0
2 years ago
Find all the missing side and angles for triangle.
pochemuha

the angles the top part that has a square is 90⁰ and x and y are equal so we will name them both x and all angles together make 180⁰

I don't know about the sides

Step-by-step explanation:

90+x+x=180

2x=180-90

2x=90

x=90/2

x=45

6 0
2 years ago
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