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musickatia [10]
4 years ago
5

Leah likes to stretch 5 minutes for every 10 minutes of dancing. How many minutes should she stretch if she is doing a 50 minute

dance class?
Mathematics
1 answer:
tangare [24]4 years ago
7 0
Let's set up a proportion.
5/10=?/50
We know that ten times 5 equals 50, so we can multiply the numerator, 5, by 5 to get our answer (what you do to the denominator, you must also do to the numerator).
5x5=25
The answer is 25,
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The relationship between a bacteria population p, in thousands, and time d, in days, since it was measured to be 1,000 can be re
Assoli18 [71]

d = log₂p represents a logarithmic function, The expression log₂(10) tells us when the population reaches 10,000 and the equation 7 = log₂(128) tells us that the population reaches 128,000 in 7 days.

<h3>What is an exponential function?</h3>

An exponential function is in the form:

y = abˣ

Where a is the initial value of y and b is the multiplication factor.

Let p represent the bacteria population in thousand after d days.

Since each day, the bacteria population grows by a factor of 2, hence:

p=2^d

Hence, d = log₂p represents a logarithmic function

The expression log₂(10) tells us when the population reaches 10,000 and the equation 7 = log₂(128) tells us that the population reaches 128,000 in 7 days.

Find out more on exponential function at: brainly.com/question/12940982

8 0
3 years ago
Decide whether the following statement makes sense (or is clearly true) or does not make sense (or is clearly false). Explain yo
schepotkina [342]

Answer:

A. is the correct one. The statement makes sense.

Step-by-step explanation:

A. This is true because if you make your graph starting from the lowest value then the graph will use more space to fit the data and it will make it look bigger. Also, the variation will seem higher because it will feel that you are increasing it from 0, so the relative increase will be higher.

B. Reducing the range of the vertical axis will increase the relative size of variation, not make it decrease, as we explained in A.

C. Even though it is technically certain that the data shown is the same as before, the way to show data also matters. And by making changes on the presentation of your data you can obtain different results on the impression that leaves to people.

D. This is just false, because you are indeed dereasing the range of the vertical axis, not increasing it.

6 0
3 years ago
2
Nezavi [6.7K]

Answer:

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8 0
3 years ago
What is the length of Line segment A C? 3 ft 4 ft 9 ft 18 ft
AfilCa [17]

Answer:

By the given diagram,

AM = MB and CN = NB

M and N are the mid points of the sides AB and CB respectively,

Thus, by the mid point theorem,

MN ║ AC,

By the alternative interior angle theorem,

∠BMN ≅ ∠BAC

∠BNM ≅ ∠BCA

Thus, by AA similarity postulate,

ΔBMN ≅ ΔBAC

By the property of similar triangles,

Thus, The length of AC is 18 ft.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Find the new amount given the original amount and the percent of change.
ella [17]

Answer:

New Amount = $9.8

Step-by-step explanation:

Original amount  = $ 7

Percentage increase = 40%

Increase in amount = 40\% \ of\ 7 = \frac{40}{100}\times 7=\frac{280}{100} = \$2.8

New amount = \textrm{Original amount + Increase} = \$7+\$2.8=\$9.8

New Amount = $9.8

3 0
4 years ago
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