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2 years ago

7 x 5e = 105 plz help

Mathematics

2 answers:

Anon25 [30]2 years ago

8 0

e=3.

So this is how I approached this. Since 7 is being multiplied, I divided both sides by 7 so 105/7 = 15. Then it becomes simple as 5e=15. We divide both sides by 5 and get e=3. Tip: just try isolating the variable and then life is much easier.

SSSSS [86.1K]2 years ago

5 0

Answer:

e = 3

Step-by-step explanation:

7 × 5e = 105

35e = 105

35e ÷ 35 = 105 ÷ 35

e = 3

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3 years ago

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Answer:

$(x + 2)(x + 1)$

Step-by-step explanation:

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2 years ago

A certain city's population is 120,000 and decreases 1.4% per year for 15 years.

mart [117]

Answer:

Decay Problem.

Decay rate, r = 0.014
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P(10)=104,220

Step-by-step explanation:

The exponential function for growth/decay is given as:

$P(t)=P_0(1 \pm r)^t, where:\\P_0$ is the Initial Population\\r is the growth/decay rate\\t is time$

In this problem:

The city's initial population is 120,000 and it decreases by 1.4% per year.

Since the population decreases, it is a Decay Problem.

Decay rate, r=1.4% =0.014
Initial Amount =120,000

Therefore, the function is:

$P(t)=120000(1 - 0.014)^t\\P(t)=120000(0.986)^t$

When t=10 years

$P(10)=120000(0.986)^10\\=104219.8\\\approx 104220 $ (to the nearest whole number)$

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2 years ago

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Answer:

1.) D. Rotation

2.) D. Side H

3.) A. Reflection

4a) AB≅WX

DC≅ZY

4b) C≅Y

B≅X

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3 years ago

to construct a parallel to a line through a point not on the line using paper folding, you can perform the _____ construction tw

adoni [48]

The correct answer is:

The midpoint of a segment.

Explanation:

To construct a line parallel to another line through a given point, the first thing you do is fold the given line onto itself, making sure that the given point is on the fold. This is the same construction used to find the midpoint of a segment.

Unfold the paper, and the crease made with the fold creates a line through the given point and given line. Fold this new line (crease) onto itself, making sure the given point is in the fold. This is again the same construction used to find the midpoint of a segment, and this creates our parallel line through our given point.

6 0

3 years ago

Read 2 more answers

7 x 5e = 105 plz help ​

7 x 5e = 105 plz help