3 years ago

Help help me help help please help help me help help please help help me help help

Mathematics

1 answer:

goblinko [34]3 years ago

5 0

Answer:

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Solve 2((3+-1)^2 - -1)

Sunny_sXe [5.5K]

Answer:

10 is correct

Step-by-step explanation:

2(4+1)

2(5)

=10

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3 years ago

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How do you solve this? rs/a = k for r

morpeh [17]

Answer:

Step-by-step explanation:

In $\frac{rs}{a}=k$ begin by multiplying both sides by a to get

rs = ak and divide away the s to get

$r=\frac{ak}{s}$

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3 years ago

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elena55 [62]

Answer:

32x-4

Step-by-step explanation:

1. Add the numbers.

2x(16)-4

2. Multiply the numbers.

32x-4

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What is the maximum volume in cubic inches of an open box to be made from a 12-inch by 16-inch piece of cardboard by cutting out

Romashka-Z-Leto [24]

If you start with a 12x16 rectangle and cut square with side length x, when you bend the sides you'll have an inner rectangle with sides $12-2x$ and $16-2x$ , and a height of x.

So, the volume will be given by the product of the dimensions, i.e.

$(12-2x)(16-2x)x = 4x^3-56x^2+192x$

The derivative of this function is

$12x^2-112x+192$

and it equals zero if and only if

$12x^2-112x+192=0 \iff x = \dfrac{14\pm 2\sqrt{13}}{3}$

If we evaluate the volume function at these points, we have

$f\left(\dfrac{14-2\sqrt{13}}{3}\right) = \dfrac{64}{27}(35+13\sqrt{13})> f\left(\dfrac{14-2\sqrt{13}}{3}\right) = -\dfrac{64}{27}(13\sqrt{13}-35)$

So, the maximum volume is given if you cut a square with side length

$x=\dfrac{14-2\sqrt{13}}{3}\approx 2.7$

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3 years ago

Find the equation of the line in slope-intercept form (4,-6) and no slope

marin [14]

Answer:

x=4

Step-by-step explanation:

No slope means slope is undefined --> you have vertical line that passes through (4,-6), where x=4, y= -6

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