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PolarNik [594]
3 years ago
13

Select the expression that has a value of 4

Mathematics
1 answer:
Harrizon [31]3 years ago
4 0

Answer:

The answer is letter D.

Step-by-step explanation:

320/80

=4

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What is the square root of -1?
Zigmanuir [339]

Answer:

i is the answer

Step-by-step explanation:

4 0
3 years ago
Which Figure is a rotation of the Blue Figure?<br> A<br> B<br> C<br> D
luda_lava [24]

Answer:

a

Step-by-step explanation:

the green figure is the same as the blue figure.

8 0
3 years ago
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
Which equation could have been used to create this graph?
pishuonlain [190]
B. The y-intercept is 0 so it can't be C or D and the slope is 5/1. How I remember this is rise/run. Hope this helps!
3 0
4 years ago
May 28, 3:14:08 AM
saul85 [17]

Answer:

The circumference is:

C=52.8\: ft

Step-by-step explanation:

The equation of the circumference of a circle is given by:

C=2\pi R

Where:

R is the radius of the circle (R=8.4 ft)

Therefore, the circumference will be:

C=2\pi*8.4

C=2(3.14)8.4

C=52.8\: ft

I hope it helps you!

6 0
3 years ago
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