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Mashutka [201]
2 years ago
7

Find the value of xm<2= x + 132​

Mathematics
2 answers:
podryga [215]2 years ago
3 0

Answer:

x= -12

Step-by-step explanation:

Please see attached picture for full solution.

lawyer [7]2 years ago
3 0

Answer:

x = -12

Step-by-step explanation:

180 - 150 = 30

(Supplementary angles)

Angle 2 = 90 + 30

Exterior angle = sum of interior angles

Angle = 120

x + 132 = 120

x = -12

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Lubov Fominskaja [6]
L= length of one side of the square
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6 0
3 years ago
Scientist can determine the age of ancient objects by a method called radiocarbon dating. The bombardment of the upper atmospher
Artemon [7]

Answer: 2500 years

Step-by-step explanation:

I'm not quite sure if I'm doing this right myself but I'll give it a shot.

We use this formula to find half-life but we can just plug in the numbers we know to find <em>t</em>.

A(t)=A_{0}(1/2)^t^/^h

We know half-life is 5730 years and that the parchment has retained 74% of its Carbon-14. For A_{0 let's just assume that there are 100 original  atoms of Carbon-14 and for A(t) let's assume there are 74 Carbon-14 atoms AFTER the amount of time has passed. That way, 74% of the C-14 still remains as 74/100 is 74%. Not quite sure how to explain it but I hope you get it. <em>h</em> is the last variable we need to know and it's just the half-life, which has been given to us already, 5730 years, so now we have this.

74=100(1/2)^t^/^5^7^3^0

Now, solve. First, divide by 100.

0.74=(0.5)^t^/^5^7^3^0

Take the log of everything

log(0.74)=\frac{t}{5730} log(0.5)

Divide the entire equation by log (0.5) and multiply the entire equation by 5730 to isolate the <em>t</em> and get

5730\frac{log(0.74)}{log(0.5)} =t

Use your calculator to solve that giant mess for <em>t </em>and you'll get that <em>t</em> is roughly 2489.128182 years. Round that to the nearest hundred years, and you'll find the hopefully correct answer is 2500 years.

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5 0
3 years ago
Find the unit rate. 927 pages in 9 days=__pages per day
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6 0
2 years ago
How to do linear functions using the table ?
Ira Lisetskai [31]

Answer:

-8 = m-2+b

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Step-by-step explanation:

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3 0
3 years ago
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Crazy boy [7]

Answer: The simplified form is \frac{1}{9}

Step-by-step explanation:

Since we have given that

3^{-2}

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Hence, the simplified form is \frac{1}{9}

8 0
3 years ago
Read 2 more answers
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