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2 years ago

Given m||n, find the value of x. (9x-5)(6x+20)

Mathematics

1 answer:

xxTIMURxx [149]2 years ago

7 0

Answer:

5/9 & -10/3

Step-by-step explanation:

Set each to 0 and solve:

9x-5 = 0

9x=5

x=5/9

6x+20=0

6x=-20

x=-20/6

x= -10/3 or -3 1/3

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Step-by-step explanation:

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2 years ago

You can buy 15 stickers for $10 how much would 12 stickers cost

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Answer:

8 dollars

Step-by-step explanation:

We can write a ratio to solve

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------------------ = ----------------------

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2 years ago

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Please solve the question below 1

Fiesta28 [93]

Answer:

Step-by-step explanation:

Find the mean:

Day 1: 2

Day 2: 1

Day 3: 4

Day 4: 5

Day 5: 0

Day 6: 7

Mean = $\frac{2 + 1 + 4 + 5 + 0 + 7}{6} = 3.17$

This does not exceed a daily mean of 3.5 hours which was set by her mom as a guideline.

Therefore we can conclude that:

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2 years ago

Somebody help plz how can i solve the following equations of 6v+3=21

IrinaK [193]

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2 years ago

Which of the following functions gives the length of the base edge, a(v), of a right square pyramid that is 8 inches tall as a f

Reil [10]

Answer:

$\large\boxed{a(V)=\sqrt{\dfrac{3V}{8}}}$

Step-by-step explanation:

The formula of a volume of a square pyramid:

$V=\dfrac{1}{3}a^2h$

a - base edge

h - height of a pyramid

We have H = 8in.

Substitute and solve for a:

$\dfrac{1}{3}a^2(8)=V\\\\\dfrac{8}{3}a^2=V\qquad\text{multiply both sides by}\ \dfrac{3}{8}\\\\\dfrac{3\!\!\!\!\diagup^1}{8\!\!\!\!\diagup_1}\cdot\dfrac{8\!\!\!\!\diagup^1}{3\!\!\!\!\diagup_1}a^2=\dfrac{3}{8}V\\\\a^2=\dfrac{3V}{8}\Rightarrow a=\sqrt{\dfrac{3V}{8}}$

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2 years ago