Answer:
[-18 10]
[5 -3]
Step-by-step explanation:
If you have a graphing calculator, you can go to 2nd x^-1, edit, put in your numbers, repeat for matrix b, and multiply them in that same menu.
9514 1404 393
Answer:
124
Step-by-step explanation:
In the absence of any information about interest compounding, we'll assume that simple interest applies. The balance is ...
A = P(1 +rt) . . . . . principal P, annual rate r, for t years
A = 100(1 +0.03×8) = 100×1.24
A = 124
124 would be in the account after 8 years.
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<em>Additional comment</em>
If interest is compounded annually, the amount would be ...
100(1.03^8) ≈ 126.68
Answer:
B and C is your answer BH x 1/2 is formula of triangle and formula of rectangle/parallelogram is BH
Xavier spent $84 on supplies (so this is an expense we will make only once), and then he will spend one more dollar for each canvas. So, his total expense for paintings will be
Similarly, he will get 8 dollars for each painting, so he will earn
dollars if he will sell paintings.
In order to break even, earnings and costs must be equal:
Subtract p from both sides:
Divide both sides by 7:
So, he has to sell at least 12 paintings to break even.