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3 years ago

5

Which one ,, giving 35 points to the right person

1 answer:

dybincka [34]3 years ago

7 0

Answer:

31.5

Step-by-step explanation:

Triangular prism formula for volume is V = 1/2 a x c x h

V = 1/2 7 x 4.5 x 2

V = 1/2 63

V = 31.5 in 3

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Graph the piecewise function given below.

Kazeer [188]

Answer:

this may help you.look it once.

8 0

3 years ago

(x/x+3)-(8/x+2)=(-13x-6)/(x^2+5x+6)

Fed [463]

Answer:

x = -9

x = 2

Step-by-step explanation:

Given:

$\dfrac{x}{x+3}-\dfrac{8}{x+2}=\dfrac{-13x-6}{x^2+5x+6}$

First, note that

$x^2+5x+6=x^2+2x+3x+6=x(x+2)+3(x+2)=(x+2)(x+3)$

Since $x+2$ and $x+3$ stay in the denominator, then

$x\neq -2\ \text{and}\ x\neq -3$

Now add two fractions which stay in the left part. The common denominator is $(x+2)(x+3),$ so multiply the numerator of the first fraction by $(x+2)$ and the numerator of the second fraction by $(x+3)$ and subtract them in the numerator:

$\dfrac{x}{x+3}-\dfrac{8}{x+2}=\dfrac{-13x-6}{(x+2)(x+3)}\\ \\\dfrac{x(x+2)-8(x+3)}{(x+2)(x+3)}=\dfrac{-13x-6}{(x+2)(x+3)}\\ \\x(x+2)-8(x+3)=-13x-6\\ \\x^2+2x-8x-24=-13x-6\\ \\x^2+2x-8x+13x-24+6=0\\ \\x^2+7x-18=0\\ \\x^2+9x-2x-18=0\\ \\x(x+9)-2(x+9)=0\\ \\(x+9)(x-2)=0\\ \\x+9=0\ \text{or}\ x-2=0\\ \\x=-9\ \text{or}\ x=2$

3 0

3 years ago

Please help me on this

Gre4nikov [31]

Answer: option a.

Step-by-step explanation:

Given the expression $\sqrt{8^{17}}$ , you need to remember:

The Product of powers property:

$a^m*a^n=a^{(m+n)}$

The Power of a power property:

$(a^m)^n=a^{mn}$

And:

$\sqrt[n]{a^n}=a$

Therefore, as the index of the radical is 2, you can rewrite $8^{17}$ as:

$8^{17}=8^{16}*8$

Rewrite this and simplify. Then:

$=\sqrt{8^{17}}$

$=\sqrt{8^{16}*8}=\sqrt{8^{16}}\sqrt{8}=\sqrt{(8^{8})^2}\sqrt{8}=8^8\sqrt{8}$

This matches with the option a.

3 0

3 years ago

Find the next three terms in the sequence.<br> 1, 3, 6, 10, 15, ...

bixtya [17]

Answer:

21, 28, 36

Step-by-step explanation:

1 + 2 = 3

3 + 3 = 6

6 + 4 = 10

10 + 5 = 15

Next three terms,

15 + 6 = 21

21 + 7 = 28

28 + 8 = 36.

8 0

3 years ago

Read 2 more answers

A research collected data about the favorite car color of a particular population. He asked 250 of people about their favorite v

dlinn [17]

Answer:

a) 20 more people said their favorite vehicle color was blue compared to those who said white.

b) 55 people said their favorite vehicle color was either black or silver

Step-by-step explanation:

(a). How many more people said their favorite vehicle color was blue compared to those who said white explain?

250 people

32% said blue. 32% of 250 is 0.32*250 = 80

24% said white. 24% of 250 is 0.24*250 = 60

80 - 60 = 20

20 more people said their favorite vehicle color was blue compared to those who said white.

(B) how many people said their favorite vehicle color was either black or silver ?

18% said black, 4% said silver.

18 + 4 = 22% of 250 = 0.22*250 = 55

55 people said their favorite vehicle color was either black or silver

5 0

3 years ago