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irinina [24]
2 years ago
9

Write an equation in slope-intercept form for the line with slope -2/5 and y-intercept 6 .

Mathematics
1 answer:
lana66690 [7]2 years ago
5 0

y=(-2/5)x + 6

Step-by-step explanation:

y-6= (-2/5)x or y=(-2/5)x + 6

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Jim wants to put a wallpaper border around a rectangular room.The room measures 14 feet by 10 feet. If the wallpaper border come
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This drawing shows an Isosceles triangle. Work out the size of angle a. ​
antiseptic1488 [7]
50 degrees

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3 years ago
After being treated with chemotherapy, the radius of the tumor decreased by 23%. What is the corresponding percentage decrease i
Crazy boy [7]

Answer:

The volume of the tumor experimented a decrease of 54.34 percent.

Step-by-step explanation:

Let suppose that tumor has an spherical geometry, whose volume (V) is calculated by:

V = \frac{4\pi}{3}\cdot R^{3}

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The percentage decrease in the volume of the tumor (\%V) is expressed by:

\%V = \frac{\Delta V}{V_{o}} \times 100\,\%

Where:

\Delta V - Absolute decrease in the volume of the tumor.

V_{o} - Initial volume of the tumor.

The absolute decrease in the volume of the tumor is:

\Delta V = V_{o}-V_{f}

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The percentage decrease is finally simplified:

\%V = \left[1-\left(\frac{R_{f}}{R_{o}}\right)^{3} \right]\times 100\,\%

Given that R_{o} = R and R_{f} = 0.77\cdot R, the percentage decrease in the volume of tumor is:

\%V = \left[1-\left(\frac{0.77\cdot R}{R}\right)^{3} \right]\times 100\,\%

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The volume of the tumor experimented a decrease of 54.34 percent.

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3 years ago
Mr. Jones and Mr. Griebel each bought new shoes, Mr. Jones used a 20% off coupon and paid $82. Mr. Griebel used a $20 off coupon
anzhelika [568]

Answer:

Assuming they bought the same shoes, $82.5

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Divide by 0.8 to find the original price.

82 / 0.8 = 102.5

102.5-20=82.5

6 0
2 years ago
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