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Minchanka [31]
3 years ago
12

What is the value of x?

Mathematics
2 answers:
34kurt3 years ago
8 0
You'd do 13^2 -12^2 as b^2 = c^2 - a^2 so
x^2 = 169(13^2) - 144 (12^2)
169 - 144 = 25
So square root 25 = 5
x = 5
Inessa [10]3 years ago
7 0
Hey user


l think it is 

5

hope this helped

have a good day
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MA_775_DIABLO [31]

Answer:

[0.184, 0.266]

Step-by-step explanation:

Given:

Number of survey n =280

Number of veterans = 63

Confidence interval = 90%

Computation:

Probability of veterans = 63/280

Probability of veterans =0.225

a=0.1

Z(0.05) = 1.645 (from distribution table)

Confidence interval = 90%

So,

p ± Z*√[p(1-p)/n]

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4 0
3 years ago
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makvit [3.9K]

Answer:

Exponential

Step-by-step explanation:

<em>Starter:</em>

According to the title:

"Every day, half a bacteria population dies."

Exponential: y = ab^x ( b > 0 , b ≠ 1)

So the answer is C.

<em>Calculations:</em>

An exponential model is of the form y = a • b^t.

If you start with population of 500 million bacteria

t = 0

so 500 million = a • b^0 = a

Since every day half the population dies then in 1 day population will be 250 million

so a = 500 million, y = 250 million and t = 1

250 million = 500 million • b^1

b = 0.5

Therefore your equation would be

y = 500 million (or whatever the pop) • 0.5^t

Where t = number of days

This could also be written in exponential form ( e = 2.73)

4 0
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Answer:

8 units.

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The smaller of the right triangles formed is similar to the whole triangle so

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7 0
3 years ago
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Alina [70]

Answer:

Step-by-step explanation:

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4 0
3 years ago
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