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Studentka2010 [4]
3 years ago
13

How would I find the values of the variables?

Mathematics
1 answer:
Ede4ka [16]3 years ago
4 0

x^o\ and\ 3y^o\ are\ Corresponding\ Angles.\\\\Corresponding\ Angles\ are\ equal. Therefore\ we\ have\ equation:\\\\x^o=3y^o\ and\ x^o+y^o=180^o

Substitute:\\\\3y^o+y^o=180^o\\\\4y^o=180^o\ \ \ \ |:4\\\\y^o=45^o\\\\x^o=3\cdot45^o=135^o

<h3>Answer: x° = 135° and y° = 45°</h3>
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The population of a certain country is expected to double every 32 years. The population of this country was 4.2 million people
mojhsa [17]

Answer:

2.2%

Step-by-step explanation:

Given the following :

Population in year 2000 (A) = 4.2 million

Expected population every 32 years = 2 *A

The growth rate per year =?

The population figure after 32 years = (2 * 4.2 million) = 8.4 million

Using the exponential growth formula :

P(t) = A × (1 + r)^t

(1 + r) = g = Total growth percent

A = Initial population

t = time

P(t) = 8.4 million

8,400,000 = 4,200,000 × g^32

g^32 = (8400000/4200000)

g^32 = 2

Taking the root of 32 on both sides

g = 1.02189714865

g = (1 + r)

1.02189714865 = 1 + r

r = 1.02189714865 - 1

r = 0.02189714865

.rate = 0.02189714865 * 100

= 2.18971486541%

= 2.2% ( nearest tenth)

4 0
3 years ago
5 points
noname [10]

Answer:

A. y=10x+50

Step-by-step explanation:

you only add $50 once because it is the "become a member fee", you put a X next to the 10 because its monthly. (so you can replace the variable with any number if needed)

6 0
3 years ago
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Amiraneli [1.4K]
Yes I can. Help you
8 0
3 years ago
Did I do these problem correctly I need help
lana [24]

Answer:yes you did it pefect ly fine but fix number 6 make sure it's correct

Step-by-step explanation:

3 0
3 years ago
HELP!<br> Find the area of a square with a diagonal of length 12.
Rina8888 [55]

Answer:

6

Step-by-step explanation:

5 0
3 years ago
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