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Crank
3 years ago
9

Which number is a solution of the inequality? n(n - 3) < 54 A 10 B 9 C 3

Mathematics
1 answer:
daser333 [38]3 years ago
4 0

Answer:

The answer is c

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Jen had 60 fossils. If she put 6 fossils in each box, how many boxes were there?
Monica [59]

Answer:

10 boxes

Step-by-step explanation:

Take the number of fossils and divide by the number per box to determine the number of boxes

60/6 = 10

She needs 10 boxes

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Consider the function f(x)= (x+4)(x-2) what is the equation of the axis of symmetry
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if we zero out f(x), namely make y = 0, we can get the roots or x-intercepts for this quadratic equation

\bf 0 = (x+4)(x-2)\implies \begin{cases} 0=x+4\implies &-4=x\\ 0=x-2\implies &2=x \end{cases}

now, the equation is in x-terms, meaning is a vertically opening parabola, so the axis of symmetry will be x = something, a vertical line.

well, we have two x-intercepts, one at -4 and another at 2, and the vertex is right half-way between those guys

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X+y=7 and 16x+25y=148
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Suppose you need to minimize the cost of fencing in a rectangular region with a total area of 450 square feet. The material that
natta225 [31]

Answer:

The problem is stated as:

Min C = 15*(2*x +y) + 21*y

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Step-by-step explanation:

Given that the region is rectangular, it has two opposite sides called x and two other opposite sides called y (both measured in feet). Then, the area (in square feet) is:

A = x*y = 450

One of the sides called y costs $21 per linear foot. The other 3 sides (two x and one y) costs $15 per linear foot. Then, the cost function is:

C = 15*(2*x +y) + 21*y

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