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Alexeev081 [22]
3 years ago
14

Which real-world scenario involves a right triangle?

Mathematics
1 answer:
alexira [117]3 years ago
5 0
Putting a ladder up against a straight wall. The sides of the triangle are:
1: the ladder
2: the walls
3: the ground from the wall to the ladder
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Help me plzzzz!! It is math and I have to walk the number line. And i don't know how to do it!
bazaltina [42]

Answer:

1 is 13

2 is 13

3 is -7

4 is 7

Step-by-step explanation:

8 0
3 years ago
At Pages Aplenty book store, the more books you buy, the more books you get! With the
Alex Ar [27]

Answer the answer would be 6

Step-by-step explanation:

6 0
3 years ago
9. Determine how long it takes for 80% of the material to decay.
Vilka [71]

Using an exponential function, it is found that it takes 18.6 days for 80% of the material to decay.

The amount of a substance after t days is modeled by:

A(t) = A(0)e^{-kt}

In which:

  • k is the decay rate, as a decimal.
  • A(0) is the initial amount.

The half-life is of 8 days, hence A(8) = 0.5A(0), and this is used to find k.

A(t) = A(0)e^{-kt}

0.5A(0) = A(0)e^{-8k}

e^{-8k} = 0.5

\ln{e^{-8k}} = \ln{0.5}

-8k = \ln{0.5}

k = -\frac{\ln{0.5}}{8}

k = 0.08664339757

Hence:

A(t) = A(0)e^{-0.08664339757t}

The time it takes for 80% of the material to decay it t for which A(t) = 0.2A(0), hence:

0.2A(0) = A(0)e^{-0.08664339757t}

e^{-0.08664339757t} = 0.2

\ln{e^{-0.08664339757t}} = \ln{0.2}

-0.08664339757t = \ln{0.2}

t = -\frac{\ln{0.2}}{0.08664339757}

t = 18.6

It takes 18.6 days for 80% of the material to decay.

To learn more about exponential functions, you can take a look at brainly.com/question/24906920

5 0
3 years ago
Put these groups of numbers starting with the smallest 1.506, 1.06, 1.501, 1.605​
maks197457 [2]
1.06
1.501
1.506
1.605


Hope this helps
6 0
2 years ago
Can someone please answer this. Is it a,b,c, or d
Mashcka [7]

Answer:

(n+6)(n-6)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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