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Reika [66]
3 years ago
15

The bat population in a certain Midwestern county was 270,000 in 2012, and the observed doubling time for the population is 34 y

ears.
Mathematics
1 answer:
Lena [83]3 years ago
3 0
What’s the question?
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Sarah bought a lawnmower for $320. She signed up for the buy now pay later plan at the store with the following conditions: $100
marishachu [46]
Cost of the lawnmower bought by Sarah = $320
Amount of down payment made by Sarah = $100
Amount paid by Sarah in 12 months = (12 * 25) dollars
                                                          = 300 dollars
Total amount paid by Sarah = (300 + 100) dollars
                                             = 400 dollars
Excess amount paid as interest by Sarah = (400 - 320) dollars
                                                                   = 80 dollars
Actual yearly rate of interest paid by Sarah = (80/320) * 100 percent
                                                                     = 25 percent
So 25% yearly interest was paid by Sarah. The correct option is option "C".
4 0
3 years ago
Using the formula r = d/t where d is the distance in miles, r is the rate, and t is the time in hours, at which rate must you tr
mote1985 [20]
75 is the answer for the rate
6 0
3 years ago
Read 2 more answers
Simplify to create a equivalent expression.
Ratling [72]

Answer:

\boxed{\bold{66k+9}}

Explanation:

Expand \bold{5\left(10k+1\right): \ 50k+5}

= \bold{50k+5+2\left(2+8k\right)}

Expand \bold{2\left(2+8k\right): \ 4+16k}

= \bold{50k+5+4+16k}

Simplify \bold{50k+5+4+16k: \ 66k+9}

= \bold{66k+9}

Mordancy.

7 0
3 years ago
Read 2 more answers
Solve for s. write answers as integers or as proper or improper fractions in simplest form.
Rudik [331]

Answer:

+10 or -10

Step-by-step explanation:

square root both sides

8 0
2 years ago
Which graph shows a negative rate of change for the interval 0 to 2 on the x-axis?
valentina_108 [34]

It seems that the four graphs are the same and they do not have a negative change rate in the interval 0 to 2 in the x-axis.

A negative change rate means that when x increases the value of the function (y) decreases; this is, the function is decreasing in the interval being estudied, which is the same that going downward.

So, you must look for in your graphs where the equation is going downward.

For example, in the graph attached, that happens in any interval from negative infitity to  1.5.

The vertex will help you to identify it.

Given that the graph goes downward from negative infinity to the vertex, any interval that includes that range will have negative change.

You must look for a parabola that opens upward and whose vertex is in x = 2.

Read more on Brainly.com - brainly.com/question/3774202#readmore

5 0
3 years ago
Read 2 more answers
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