3 years ago

A plumber has a 40-ft piece of a PVC pipe. How many 7/5-foot pieces can be cut from the 40-foot piece ?

Mathematics

1 answer:

ValentinkaMS [17]3 years ago

7 0

The answer is 28 pieces

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NISA [10]

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2 years ago

Basketball shoes are on sale for 22% off. What is the regular price if the sale price is $42?

artcher [175]

Answer:

x =53.85

Step-by-step explanation:

Let x be the original price

If the price is 22% of, you will pay 100% -22% = 78%

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Find the minimum value if f(x) = xe^x over [-2,0]

SashulF [63]

Given function:

$f(x)=xe^x$

The minimum value of the function can be found by setting the first derivative of the function to zero.

$f^{\prime}(x)=xe^x+e^x$ $\begin{gathered} xe^x+e^x\text{ = 0} \\ e^x(x\text{ + 1) = 0} \end{gathered}$

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$\begin{gathered} x\text{ + 1 = 0} \\ x\text{ = -1} \end{gathered}$ $\begin{gathered} e^x\text{ = 0} \\ \text{Does not exist} \end{gathered}$

Substituting the value of x into the original function:

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1 year ago

How do i completely factor 9c^4-36c^2?

VLD [36.1K]

You take out the biggest factor of 9 and 36 which is 9c^2. The factors both have the c variable in common so you take the least exponent and put it with the gcf.

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2 years ago

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geniusboy [140]

40-7= 33
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The maximum would be 17 students

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2 years ago

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