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2 years ago

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Mathematics

1 answer:

Marta_Voda [28]2 years ago

6 0

Answer:

Step-by-step explanation:

rise/run = 4/7

since were coming from the origin this is easy

since the y is 4 we know the rise is 4

since the x is 7 we know the run is 7

y = 4/7x

hope this helps <3

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The average test scores in a physics class is normally distributed with a standard deviation of 5.4. 50 scores with a sample mea

andrey2020 [161]

Answer:

to my knowledge

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2 years ago

A sample of tritium-3 decayed to 94.5% of its original amount after a year.

Zolol [24]

(a) If $y(t)$ is the mass after $t$ days and $y(0) = A$ then $y(t) = Ae^{kt}.$

$y(1) = Ae^k = 0.945A \implies e^k = 0.945 \implies k = \ln 0.945$

$\text{Then } Ae^{(\ln 0.945)t} = \frac{1}{2}A\ \Leftrightarrow\ \ln e^{(\ln 0.945)t} = \ln \frac{1}{2}\ \Leftrightarrow\ ( \ln 0.945) t = \ln \frac{1}{2} \Leftrightarrow \\ \\
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(b)
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3 0

3 years ago

I need an answer quick. I am trying to finish this fast.

inessss [21]

Answer:

D, m<4 is 137°

Step-by-step explanation:

The answer would be D, because m<4 would be supplementary with the angle that's 43 degrees. Supplementary angles add up to 180, so this could be found through the following equation.

x + 43 = 180

x would represent <4

You would now subtract 43 from both sides.

x = 137

8 0

2 years ago

Read 2 more answers

In a triangle ABC, with angles A, B, and C and sides AB, BC, and AC, angle B is a right (90°) angle. If the sin of angle A is 0.

rewona [7]

I hope this helps you

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3 years ago

4/9x+1/5x=58<br> plzhelp

Olenka [21]

Answer:

Solution

x = 90

Step-by-step explanation:

Combine multiplied terms into a single fraction

⋅

\frac{4}{9}x+\frac{1}{5} \cdot x=58

94x+51⋅x=58

⋅

\frac{4x}{9}+\frac{1}{5} \cdot x=58

94x+51⋅x=58

Combine multiplied terms into a single fraction

Multiply by 1

6 0

2 years ago

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