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2 years ago

11

PLEASE HELP AS SOON AS POSSIBLE!!

1 answer:

hram777 [196]2 years ago

3 0

Answer:

A

Step-by-step explanation:

The problem says it is at least 6 so it can't be 0.

sorry if I get it wrong.

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Which box-and-whisker plot shows the scores of ten students on a mathematics exam?89, 78, 93, 90, 75, 81, 91, 80, 89, 79

Rzqust [24]

Answer:

A box-and-whisker plot is shown above a number line that extends from 70 to 100 with 1 unit markings. The box extends from 79 to between 90 and 91 with a division at 89. There is also a point marked at 89. The whisker on the left extends from 75 to 79. The whisker on the right extends from between 90 and 91 to 93.

i hope this helps u and makes sense :))

7 0

2 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

Dexter had 15 fish in his fish tank. 7 were

melamori03 [73]

Answer:12

Step-by-step explanation: so sart by subtracting 15 and 7

15-7

this gives you 8

now add 4

8+4

this gives you 12

6 0

2 years ago

(27x^4-18x^3+9x^2)÷3x

Goshia [24]

Answer:

the answer is 9x^3 - 6x^2 + 3x

Step-by-step explanation:

take each number with variable and divided by 3x

3 0

3 years ago

Stefan is making new cushion covers for a chair. There are three sizes of cushions on the chair. What is the surface area of the

Valentin [98]

Answer:

990 square inches:)!

Step-by-step explanation:

i took the test >:).

8 0

2 years ago