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3 years ago

14

Consider the net of a rectangular box where each unit on the coordinate plane represents 4 feet. If a can of spray paint covers

40 square feet, how many cans of spray paint are needed to paint the inside and outside of the box red?
A. 4
B. 6
C. 8
D. 12

2 answers:

Vesnalui [34]3 years ago

6 0

Answer:

8

Step-by-step explanation:

took the test

ss7ja [257]3 years ago

3 0

Answer:

The answer is 8

Step-by-step explanation:

:)

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Match the correct angle measurement with its letter from the diagram.

igor_vitrenko [27]

Answer:

<C=48 because 90-42=42 as in the other side of the triangle.

<B=42 because vertical angles are always congruent.

<B+<D=90 because <D is 48 because it is vertical to <C

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2 years ago

What are the roots of the equation 9x^2 + 54x +82 = 0 in simplest a + bi form?

s344n2d4d5 [400]

Answer:

The roots are

<h3> $x = - 3 + \frac{1}{3} i \: \: \: or \: \: \: x = - 3 - \frac{1}{3} i \\$ </h3>

Step-by-step explanation:

9x² + 54x + 82 = 0

Using the quadratic formula

That's

<h3> $x = \frac{ - b\pm \sqrt{ {b}^{2} - 4ac} }{2a}$ </h3>

From the question

a = 9 , b = 54 , c = 82

Substitute the values into the above formula and solve

That's

<h3> $x = \frac{ - 54\pm \sqrt{ {54}^{2} - 4(9)(82)} }{2(9)} \\ x = \frac{ - 54\pm \sqrt{2916 - 2952} }{18} \\ x = \frac{ - 54\pm \sqrt{ - 36} }{18} \\ x = \frac{ - 54\pm 6i}{18}$ </h3>

Separate the real and imaginary parts

That's

<h3> $x = - \frac{54}{18} \pm \frac{6}{18} \: i \\ x = - 3\pm \frac{1}{3} i$ </h3>

We have the final answer as

<h3> $x = - 3 + \frac{1}{3} i \: \: \: or \: \: \: x = - 3 - \frac{1}{3} i \\$ </h3>

Hope this helps you

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3 years ago

What’s the surface area

grin007 [14]

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A new truck that is coming out weights 2(1/2) tons. How much does the truck weigh in pounds?

lys-0071 [83]

Since each ton equals 2000 pounds you add 2000+2000+500 (because of the half) and it equals 4,500 pounds

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3 years ago

Read 2 more answers

how many quarter-pound (1/4) packets of plant food can a garden shop make out of 8 pounds of the plant food?

Inga [223]

Answer:

32.

Step-by-step explanation:

1/4 / 8 = 4 * 8 = 32

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2 years ago