2 years ago

22n=418 what is the vaule of n.

Mathematics

1 answer:

AnnZ [28]2 years ago

8 0

Answer:

n = 19

Step-by-step explanation:

22n = 418

Divide both sides by 22.

n = 19

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Step-by-step explanation:

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3 years ago

The function f(x) = –x2 + 20x – 75 models the profit from one customer, in dollars, a shop makes for printing photos, where x is

trasher [3.6K]

The function is graphed as shown below

Part A:

We use the formula $- \frac{b}{2a}$ to find the vertex of the function. A quadratic function of the form of $a x^{2} +bx+c$ and equating this form to the given function $- x^{2} +20x-75$ , we have
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This calculation means that the highest profit is achieved when the number of photo printed equals to ten photos

Part B:

We can find solution to this equation by factorising

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$x^{2} -20x+75=0$
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3 years ago

A van travels 150 miles on 6 gallons of gas. How many gallons will it need to travel 325 miles?

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Answer:

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