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3 years ago

8

Suppose eded is going to burn a compact disk (cd) that will contain 5 songs. in how many ways can ed arrange the 5 songs on the

cd

1 answer:

QveST [7]3 years ago

5 0

There are 120 choices.

5 × 4 × 3 × 2×1 = 120 choices

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I dont understand the question Simplify 5n+13−8n−9

Anarel [89]

You can simplify by adding the like terms which would be -8n and 5n and you get -13n so the simplified version would be -13n+4

5 0

3 years ago

What is m in 4/5m=2/9 is it 5/18

Romashka [77]

$\frac{4}{5} m = \frac{2}{9} \\ \\ \frac{4m}{5} = \frac{2}{9} \\ \\ 4m = \frac{2}{9} \times 5 \\ \\ 4m = \frac{10}{9} \\ \\ m = \frac{10}{9 \times 4} \\ \\ m = \frac{10}{36} \\ \\ m = \frac{5}{18} \\ \\$

The final result is: m = 5/18 or 0.2778.

8 0

3 years ago

Four-fifths the sum of twice a number and nine is equal to negative

wlad13 [49]

Answer:

The number should be -22

Step-by-step explanation:

4/5(2x + 9) = -28

2x + 9 = - 35

2x = - 44

X = -22

8 0

2 years ago

(x+16)²=12 plz help me and show work

Readme [11.4K]

Answer:

The answer is $x=-16$ ± $2\sqrt{3}$ in exact form or $x=-12.535898$ , $x=-19.464102$ in decimal form.

Step-by-step explanation:

To solve this problem, start by moving all terms to the left side of the equation and simplify. Simplify the equation by subtracting 12 from both sides of the equation and squaring $x+16$ , which will look like $x^{2} +32x+256-12=0$ . Next, simplify the equation again, which will look like $x^{2} +32x+244=0$ .

Then, use the quadratic formula to find the solutions. The quadratic formula looks like $\frac{-b(+-)\sqrt{b^{2}-4ac } }{2a}$ .

For this problem, the quadratic variables are as follows:

$a=1$

$b=32$

$c=244$

The next step is to substitute the values $a=1$ , $b=32$ , and $c=244$ into the quadratic formula and solve. The quadratic formula will look like $\frac{-32(+-)\sqrt{32^2-4(1*244)} }{2*1}$ . To simplify the equation, start by simplifying the numerator, which will look like $x=\frac{-32(+-)4\sqrt{3} }{2*1}$ . Then, multiply 2 by 1 and simplify the equation, which will look like $x=-16(+-)2\sqrt{3}$ . The final answer is $x=-16$ ± $2\sqrt{3}$ in exact form. In decimal form, the final answer is $x=-12.535898$ , $x=-19.464102$ .

6 0

2 years ago

Find the area of this circle

KiRa [710]

Answer:

π(8)²=64π

Step-by-step explanation:

Area = Pi times radius squared

We know the Diameter is 16 so the radius must be 8.

8 squared = 64, then we multiply pi when you get your answer.

7 0

2 years ago