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Simora [160]
4 years ago
6

Question: Solving Inequalities 4. Mrs. Motley has $1500 in her bank account. She spends $80 each week. Mrs. Motley wants to have

at least $500 in her account at all times.

Mathematics
1 answer:
solniwko [45]4 years ago
4 0
She can last 12 whole weeks and a few days. Hope this helps :)

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Answer:

100000 = 8 (4) ^t

Step-by-step explanation:

We are multiplying by 4 each time

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y = 8 (4)^t

We want to get to 100000

100000 = 8 (4) ^t

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Rewrite the equation by completing the square.<br><br>x^2 −16x+63=0<br>(x +{ })^2={ }
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What's the verbal expression for this ?
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Four times a number to the second power divided by seven.
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Two right triangles are graphed on a coordinate plane. One triangle has a vertical side of 2 and a horizontal side of 6. The oth
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Consider two <u>right triangles</u>:

1. ΔABC with <u>vertices</u> A(0,0), B(0,2), C(6,0). Then AB is perpendicular to AC and AB=2 units (<u>vertical leg</u>), AC=6 units (<u>horizontal leg</u>).

2. ΔXYZ with vertices X(6,-10), Y(6,0), Z(36,-10). Then XY is perpendicular to XZ and XY=10 units (vrrtical leg), XZ=30 units (horizontal leg).

The equation of the line BC is

\dfrac{x-0}{6-0}=\dfrac{y-2}{0-2},\\ \\-x=3y-6,\\ \\x+3y-6=0.

Check whether points Y and Z lie on this line:

Y(6,0): 6+3\cdot 0-6=0 - true;

Z(36,-10): 36+3\cdot (-10)-6=0 - true.

Answer:  the hypotenuses of these two triangles could lie along the same line

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