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Alla [95]
2 years ago
14

A) Calculate the value of x.

Mathematics
1 answer:
choli [55]2 years ago
6 0

Answer:

18

Step-by-step explanation:

3x + 2x = 90

5x = 90

5x/5 = 90/5

x = 18

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EastWind [94]
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3 0
3 years ago
Planes X and Y are perpendicular. Points A, E, F, and G are points only in plane X. Points R and S are points in both planes X a
NemiM [27]
Given:

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3 years ago
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(8y²)(-3x²y²)(2/3xy⁴)<br><br> HELP PLEASEEEEEEEE
IRINA_888 [86]

Step-by-step explanation:

1 Remove parentheses.

8{y}^{2}\times -3{x}^{2}{y}^{2}\times \frac{2}{3}x{y}^{4}

8y

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×−3x

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y

2

×

3

2

xy

4

2 Use this rule: \frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}

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\frac{8{y}^{2}\times -3{x}^{2}{y}^{2}\times 2x{y}^{4}}{3}

3

8y

2

×−3x

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3 Take out the constants.

\frac{(8\times -3\times 2){y}^{2}{y}^{2}{y}^{4}{x}^{2}x}{3}

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(8×−3×2)y

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2

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\frac{(-24\times 2){y}^{2}{y}^{2}{y}^{4}{x}^{2}x}{3}

3

(−24×2)y

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y

2

y

4

x

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x

5 Simplify -24\times 2−24×2 to -48−48.

\frac{-48{y}^{2}{y}^{2}{y}^{4}{x}^{2}x}{3}

3

−48y

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2

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x

2

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6 Use Product Rule: {x}^{a}{x}^{b}={x}^{a+b}x

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=x

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\frac{-48{y}^{2+2+4}{x}^{2+1}}{3}

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3

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3

10 Move the negative sign to the left.

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−

3

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8

x

3

11 Simplify \frac{48{y}^{8}{x}^{3}}{3}

3

48y

8

x

3

to 16{y}^{8}{x}^{3}16y

8

x

3

.

-16{y}^{8}{x}^{3}

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3

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2 years ago
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shutvik [7]
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3 years ago
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zavuch27 [327]

Answer:

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Step-by-step explanation:

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