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Anon25 [30]
3 years ago
7

Which lines, if any, must be parallel based on the given diagram?

Mathematics
2 answers:
garik1379 [7]3 years ago
7 0

m and n are parallel and p and q are parallel from one another (parallel is when they are side by side and can never intertwine) i think the answer is C

Semmy [17]3 years ago
6 0
I cant really see the letters but the ones that are going straight up. I believe this is the answer because as you can see it's going up without intersecting between each other.
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a 34 gram sample of a substance that's used to treat thyroid disorders has a k-value of 0.137. find the substance's half-life, i
Ira Lisetskai [31]

Answer:

5.1 days

Step-by-step explanation:

Given in the question,

initial amount of substance = 34 grams

k-value = 0.137

To find the half life of this substance we will use following formula

N(0)/2 = N(0)e^{-kt}

here N(0) is initial amount of substance

        t is time in days

Plug values in the formula

34 /2 = 34e^{-0.137t}

1/2 = e^{-0.137t}

Take logarithm on both sides

ln(1/2) = ln( e^{-0.137t})

ln(1/2) = -0.137t

t = ln(1/2) / -0.137

t = 5.059

t ≈ 5.1 days (nearest to tenths)

3 0
3 years ago
What is the common ratio for geometric sequence: 5,15,45,135 ?​
serg [7]

Answer:

the common ratio is 3

Step-by-step explanation:

to solve for the common ratio, I like to take the second term and divide it by the first term

15/5 = 3

then I will check the rest of the terms

15*3 = 45

45*3 = 135

It looks like the common ratio is correct!

5 0
2 years ago
The perimeter of the rectangle is 28 units.
riadik2000 [5.3K]

Answer:

7 units

Step-by-step explanation:

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The number is 276999

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