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2 years ago

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1. Emmanuel bought 30 lbs of potting soil this week. This amount is 6 lb more than twice the amount of potting soil he bought la

st week. Answer the following questions to find the number of pounds of soil Emmanuel purchased last week.

1 answer:

ikadub [295]2 years ago

3 0

Emmanuel purchased 12 pounds of soil last week. If there is any more information you need just comment on answer.

Hope this helps!

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Choose two positive integers a and b, making sure that a<5 and b>80 . The width of a rectangular computer screen is a inch

qwelly [4]

Answer:

Dimensions of the screen are a minimum of 10 inches wide by 8 inches high. The difference between the height and width will be 2 inches

Step-by-step explanation:

$Height = H$

$Width = H + a$

$Area = Height x Width$

$b = H * (H + a)$

$b = H^{2} + aH$

$H^{2} + aH > 80$

$H^{2} + aH - 80 > 0$

a<5 means 'a' can be a = 1, 2, 3, 4

Solving for H for each option of 'a' will give values of 'H' using the quadratic formula below

$H = \frac{-b\±\sqrt{b^{2}-4ac}}{2a}$

As 'a' and 'b' must be positive integers, H and W must be positive integers as well,

$a = 1, H = 8.46, H = -9.46$

$a = 2, H = 8, H = -10$

$a = 3, H = 7.57, H = -10.57$

$a = 4, H = 7.17, H = -11.17$

Based on above possible answers:

$a=2, H=8$

$W = H + a$

$W = 8 + 2$

$W = 10$

Dimensions of the screen are a minimum of 10 inches wide by 8 inches high. The difference between the height and width will be 2 inches

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3 years ago

What point of concurrency in a right triangle is also the midpoint of the hypotenuse?

tekilochka [14]

The correct answer is d, i got it right

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Please help and show steps

Sonja [21]

Answer:

i think it is c sorry if wrong

Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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2 years ago

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(7*15)*2 + (7*4)*2 + (15*4)*2

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= 386

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2 years ago

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