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joja [24]
3 years ago
11

Subtract the quantity 12a 2 −8a+4 from the quantity 12−7a 2

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
6 0

Answer:

11a-8

Step-by-step explanation:

Please Note that i assume 12a and 2 are positive.

(12a+2−8a+4)-(12−7a+2)

=12a+2-8a+4-12+7a-2

=12a-8a+7a+2+4-12-2

=11a-8

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How much did you invest if you earned $131.60 in interest at a rate of 4% for seven years?
Ket [755]

The amount invested is $ 470

<h3><u>Solution:</u></h3>

Given that ,  we have earned $131.60 as simple interest for an amount deposit at the rate of 4% for seven years.

We have to find the amount invested.  That is, we need to find the principal sum

Let us use the simple interest formula

<em><u>The simple interest is given as:</u></em>

\text { Simple interest }=\frac{p r i n c i p a l \times \text {rate of interest } \times \text {number of years}}{100}

Here, simple interest = $ 131.60

Rate of interest = 4 %

Number of years = 7

principal = ?

Substituting the values in formula, we get

\begin{array}{l}{131.6=\frac{\text { principal } \times 4 \times 7}{100}} \\\\ {131.6 \times 100=\text { principal } \times 4 \times 7} \\\\ {13160=\text {principal } \times 28} \\\\ {\text {Principal }=470}\end{array}

Thus the amount invested is $ 470

4 0
3 years ago
Justin writes the letter illinois on cards and then places the cards in a hat what are the odds against picking an i
d1i1m1o1n [39]
The odds against picking an i are 5:3, since there are 5 letters that are not i and 3 letters that are.
5 0
3 years ago
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Determine if the function below is continuous.
marshall27 [118]

Answer:

No

Step-by-step explanation:

I believe at the point of (1,1)  there is a distinct sort of point where it looks like an edge or corner which means that it is not continuous.

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3 years ago
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stellarik [79]
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Add
16/6 + 11/6 = 27/6

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4 1/2 is your simplified answer

hope this helps
8 0
3 years ago
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