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2 years ago

Expanding and Simplifying Triple Brackets: (4x + 6) (x - 3) Please help! Thankyou all! X

1 answer:

4 0

This would only be a double bracket...

but you do
(4x+6) (x-3)
F 4x * X = 4xsquared
O 4x* -3 = -12x
I. 6xX = 6x
L. 6*-3 = -18
collect like terms:
answer= 4x2 - 6x -18
the 4x is squared :)

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Qᴜɪᴢ-<br><br> What is <img src="https://tex.z-dn.net/?f=y%20~%2B~3y%20%3D%200%20~%2B~24" id="TexFormula1" title="y ~+~3y = 0 ~+~

zhuklara [117]

$\huge \boxed{\mathbb{QUESTION} \downarrow}$

What is $\tt\:y+3y=0+24$ ? Explain it.

$\large \boxed{\mathbb{ANSWER\: WITH\: EXPLANATION} \downarrow}$

$\tt \: y + 3 y = 0 + 24$

Combine y and 3y to get 4y.

$\tt \: 4y=0+24$

Add 0 and 24 to get 24.

$\tt \: 4y=24$

Divide both sides by 4.

$\tt \: y=\frac{24}{4} \\$

Divide 24 by 4 to get 6.

$\boxed { \boxed {\bf \: y=6 }}$

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2 years ago

Jeremy bought 5 CD's and a $12 DVD. If c represents the cost of a single CD, write an equation that represents the total cost.

Bumek [7]

Let x represent the total cost, so i have this equation:
x=5c+12. Hope it help!

3 0

2 years ago

As an estimation we are told 5 miles is 8 km. <br> Convert 32.5 miles to km.

elixir [45]

Answer:

52 km

Step-by-step explanation:

Given, 5 miles is 8km.

So, 1 mile will be (8/5) km.

Now, 32.5 miles will be (8/5) x 32.5 = 52 km

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2 years ago

The theoretical probability of a given event is a fraction of 9 and 13. explain what each number represent

Lostsunrise [7]

9 represents the event, 13 represents all possible events.

I have a bag of 13 marbles. 9 of my marbles are blue, 4 are red. My probability of reaching in and pulling out a blue marble at random is 9/13 (Which is 69%)

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2 years ago

52 is what percent of 260

Nataly_w [17]

"is" means =
"what percent" can represent x
"of" is multiplying

so 52 = 260x
so divide 260 by both sides so
x = 52/260 = 0.2
and 0.2 = 20%

3 0

3 years ago