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2 years ago

If Q = 1, what is the value of the expression 73 - 20q?

Mathematics

1 answer:

Digiron [165]2 years ago

3 0

Answer:

Step-by-step explanation:

73 - 20(1)

73 - 20 = 53

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How do you turn f(x) = 3x 2– 40x + 180 into a graph?

Nuetrik [128]

Answer:

Intersept is (4.55,0)

Step-by-step explanation:

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2 years ago

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A rectangular tank that is 5324 ft cubed with a square base and open top is to be constructed of sheet steel of a given thicknes

marishachu [46]

Answer:

Side of 22 and height of 11

Step-by-step explanation:

Let s be the side of the square base and h be the height of the tank. Since the tank volume is restricted to 5324 ft cubed we have the following equation:

$V = s^2h = 5324$

$h = 5324 / s^2$

As the thickness is already defined, we can minimize the weight by minimizing the surface area of the tank

Base area with open top $s^2$

Side area 4sh

Total surface area $A = s^2 + 4sh$

We can substitute $h = 5324 / s^2$

$A = s^2 + 4s\frac{5324}{s^2}$

$A = s^2 + 21296/s$

To find the minimum of this function, we can take the first derivative, and set it to 0

$A' = 2s - 21296/s^2 = 0$

$2s = 21296/s^2$

$s^3 = 10648$

$s = \sqrt[3]{10648} = 22$

$h = 5324 / s^2 = 5324 / 22^2 = 11$

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2 years ago

Kevin , Alison and Fred work part time . Kevin works every second day. Alison works every third day. Fred works every fourth day

arsen [322]

The will work together again in 12 days

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2 years ago

According to the Census Bureau, in 2014 California had an estimated population of 3.88 x 10^7 and Wyoming had an population of 5

Verdich [7]

The population of California is 3.88 x 10^7 - 5.84 x 10^5 = 3.82 x 10^7 more than the population of Wyoming. Alternatively the population of California is 3.88 x 10^7 / 5.84 x 10^5 = 66 times the population of Wyoming.

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2 years ago

Use long division to find the value of 1,875÷15.

SashulF [63]

Answer:

125

Step-by-step explanation:

1875 / 15 = 125

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