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saw5 [17]
3 years ago
11

Thought it was 180 but it’s not so help lol

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
8 0

Step-by-step explanation:

Area = ½ b × h

height = √(13²-5²)

=12

Area = ½ × 10 × 12

= 60 cm²

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The radioactive element​ carbon-14 has a​ half-life of 5750 years. A scientist determined that the bones from a mastodon had los
Arisa [49]

Therefore, the bones were 6612.5 years old at the time they were discovered.

<h3><u>Half life</u></h3>

Given that the radioactive element​ carbon-14 has a​ half-life of 5750 years, and a scientist determined that the bones from a mastodon had lost 57.5​% of their​ carbon-14, to determine how old were the bones at the time they were discovered, the following calculation must be made:

  • 50 = 5750
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Therefore, the bones were 6612.5 years old at the time they were discovered.

Learn more about half life in brainly.com/question/24710827

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8 0
2 years ago
Which represents the solution(s) of the system of equations, y = x2 - 2x - 15 and y = 8x - 40? Determine the solution set
suter [353]

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8 0
3 years ago
What is the x-intercept of the line with this equation 8x− 1 3 y=16 ? Enter your answer in the box. (, 0)
padilas [110]
8x - 13y = 16

At the x intercept y = 0 so we have:-

8x - 13(0) = 16
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6 0
3 years ago
Hey.. I’m really stuck on this page of homework, can anyone help?
eduard

Answer:

Easy!

Step-by-step explanation:

All you have to do is..       Percentage = (number you want to find the percentage for ÷ total) × 100. Move the decimal point two places to the right to convert from a decimal to a percentage, and two places to the left to convert from a percentage to a decimal.

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3 0
3 years ago
3 divide by what number equals 5
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First write the equation
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Divide
0.6 = n


So 3/0.6 = 5
4 0
4 years ago
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