3 years ago

The surface of a polyhedron can be found by

1 answer:

4 0

The surface of a polyhedron can be found by using the following equation:1. Draw a net of the polyhedron.
2. Calculate the area of each face.
3. Add up the area of all the faces.

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Which equals the product of (x – 3)(2x + 1)?

hram777 [196]

Answer:

2x^2 – 5x – 3

Step-by-step explanation:

Apply FOIL method:

=x*2x+x*1+(-3)*2x+(-3)*1

Apply minus-plus rules:

=2xx+1*x-3*2x-3*1

Simplify:

=2x^2 – 5x – 3

Your Answer Is 2x^2 – 5x – 3

plz mark me as brainliest :)

6 0

4 years ago

Read 2 more answers

Santo made 4 less than twice as many cupcakes as Lynn. Write an equation to represent the number of cupcakes that Santo made.

pickupchik [31]

Santo made 4 less than twice as many cupcakes as Lynn.

x * 2 - 4

5 0

3 years ago

In January, Music Marathon priced all the compact discs (CD’s) at $20. In February, these same CD’s were discounted 50% and in M

skad [1K]

Answer:I think it would be $9

Step-by-step explanation:

50% of 20 is $10

10% of $10 is $1

Subtract 1 from 10, which gives you $9

3 0

3 years ago

Behavior patterns which are already present at birth are called ____

PIT_PIT [208]

Answer:

instincts

Step-by-step explanation:

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7 0

3 years ago

It is based on ratios

12345 [234]

Answer:

Gianna makes $18 per hour.

Step-by-step explanation:

Given Gianna makes 90$ for 5 hours. That means she should make $\frac{90}{5}$ $ = 18$ every hour.

Therefore we have:

HOURS DOLLARS

1 18

2 36

3 54

4 72

5 90

6 108

7 126

For the tabular column mark Hours on the x - axis and Dollars on the Y - axis. It can be plotted from the above table easily.

If Gianna works for 8 hours she would have made 8 X 18 = 144$.

So, she will earn 144$ in 8 hours.

To make 60$ she would have to work $\frac{60}{18}$ hours = 3.33 hours.

3 0

4 years ago