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3 years ago

Which rational number equals 0 point 1 with bar over 1?

Mathematics

1 answer:

horsena [70]3 years ago

6 0

See attachment for math work and answer.

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Round 3,872.3155 to the nearest hundred

zlopas [31]

Answer:

3,872.32

Step-by-step explanation:

the nearest hundredth is 2 numbers on the right of the decimal sign. So you round up from 5 to get answer above.

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3 years ago

Is 21/48 greater or less than 1/2

Svetlanka [38]

:

No.

Half of 48 would be 24, not 21

<3

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3 years ago

What is the equation of the line that passes through the point (7,-3)

andrey2020 [161]

Answer:

Step-by-step explanation:

Im not sure dowload the app caculator online its free and it does ur homework

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3 years ago

Would you set them equal to each other or 90 or 180. HELP ASAP

Ghella [55]

Answer:

Step-by-step explanation:

bc i said so

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3 years ago

Keegan is printing and selling his original design on t-shirts. He has concluded that for x shirts, in thousands sold his total

Katarina [22]

Answer:

t-shirts: 2790

profit: $12209

Step-by-step explanation:

Given the function:

p(x) = -x³ + 4x² + x

we want to maximize it.

The following criteria must be satisfied at the maximum:

dp/dx = 0

d²p/dx² < 0

dp/dx = -3x² + 8x + 1 = 0

Using quadratic formula:

$x = \frac{-b \pm \sqrt{b^2 -4(a)(c)}}{2(a)}$

$x = \frac{-8 \pm \sqrt{8^2 -4(-3)(1)}}{2(-3)}$

$x = \frac{-8 \pm 8.72}{-6}$

$x_1 = \frac{-8 + 8.72}{-6}$

$x_1 = -0.12$

$x_2 = \frac{-8 - 8.72}{-6}$

$x_2 = 2.79$

d²p/dx² = -6x + 8

d²p/dx² at x = -0.12: -6(-0.12) + 8 = 8.72 > 0

d²p/dx² at x = 2.79: -6(2.79) + 8 = -8.74 < 0

Then, he should prints 2.79 thousands, that is, 2790 t-shirts to make maximum profits.

Replacing into profit equation:

p(x) = -(2.79)³ + 4(2.79)² + 2.79 = 12.209

that is, $12209

3 0

3 years ago