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avanturin [10]
3 years ago
11

PLEASE HELP!!!

Mathematics
2 answers:
nirvana33 [79]3 years ago
7 0
<span>$100 discount loan for 7% 1) Pay back $100 in one year 2) Receive $93, today. $540 discount loan for 12.5% 1) Pay back $540.00 in 90 days. 2) Receive WHAT, today? It's less than</span>
Anastasy [175]3 years ago
5 0

16.88

523.12

at least for the question i got

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During the first part of a​ trip, a canoeist travels 18 miles at a certain speed. the canoeist travels 4 miles on the second par
storchak [24]
We can set it up like this, where <em>s </em>is the speed of the canoeist:

\frac{18}{s} + \frac{4}{s-5} = 3

To make a common denominator between the fractions, we can multiply the whole equation by s(s-5):

s(s-5)[\frac{18}{s} + \frac{4}{s-5} = 3] \\ 18(s-5)+4s=3s(s-5) \\ 18s - 90+4s=3 s^{2} -15s

If we rearrange this, we can turn it into a quadratic equation and factor:

18s - 90+4s=3 s^{2} -15s \\ 22s-90=3 s^{2} -15s \\ 3 s^{2} -37s+90=0 \\ (3s-10)(s-9)=0 \\ s= \frac{10}{3} ,9

Technically, either of these solutions would work when plugged into the original equation, but I would use the second solution because it's a little "neater."  We have the speed for the first part of the trip (9 mph); now we just need to subtract 5mph to get the speed for the second part of the trip.

9-5 = 4

The canoeist's speed on the first part of the trip was 9mph, and their speed on the second part was 4mph.
5 0
3 years ago
How do you find the linear regression equation?
konstantin123 [22]
You can a linear equation when the line go between the margin and when it have a straight line
8 0
3 years ago
Evaluate the function.<br> f(x) = -x^2 - 4x + 13<br> Find f(3)
julia-pushkina [17]

Answer: i believe the answer is 10

Step-by-step explanation:

3 0
3 years ago
What is the approximate area of the circle shown below?
Musya8 [376]

Answer:

<h2>B. 5027 in²</h2><h2></h2>

Step-by-step explanation:

Area of a circle = π r²

where r = 80/2 = 40 in

<u>plugin value of r=40in into the formula:</u>

Area of a circle = π r²

                         = π (40)²

                         = 5027 in²

6 0
2 years ago
According to the rational root theorem, which is a factor of the polynomial
vekshin1
Supposing 2x-7 were a factor, then 7/2 would be a root.  Use synth. div. to determine whether 7/2 actually is a root:

         __________________________
7/2   /   6    -21     -4    24    -35
                   21      0    -14    35
        ----------------------------------------
            6      0      -4     10     0

Since the remainder is zero, 7/2 is a root and 2x - 7 is a factor.

You could check out the other possible factors in the same manner.

5 0
3 years ago
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