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Sergio039 [100]

3 years ago

9

Idk how people understand algebra help me

1 answer:

Arturiano [62]3 years ago

3 0

To factor by a binomial, I like to use synthetic division (You can use long division but it is more work).

We are actually given a binomial because if -2 is a zero, the binomial is represented by (x- (-2)) or (x+2)

To use synthetic division,

-2 | 1 2 -9 -18
-2 0 18
____________
1 0 -9 0

Therefore, you know the constants of the equation which is equal to

1x^2 +0x -9x +0

x^2-9x

The full equation is equal to (x+2)(x^2-9x)

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Firdavs [7]

Answer:

4-4=0

16-6-10=0

17-3-4-10=0

1-2+1=0

Step-by-step explanation:

4 0

3 years ago

4 equals 2 m -5 n 4 m

Ostrovityanka [42]

M = 6 - 5n hope this helps

7 0

3 years ago

Hi! I was wondering if you could help with this question please :)

Makovka662 [10]

Answer:

$R=\frac{QJ}{I^2t}$

Step-by-step explanation:

So we have the equation:

$Q=\frac{I^2Rt}{J}$

And we want to solve for R.

First, let's multiply both sides by J to remove the fraction on the right. So:

$(J)Q=(J)\frac{I^2Rt}{J}$

Simplify the right:

$JQ=I^2Rt$

We can rewrite our equation as:

$JQ=R(I^2t)$

So, to isolate the R variable, divide both sides by I²t:

$\frac{JQ}{I^2t}=\frac{R(I^2t)}{I^2t}$

The right side cancels, so:

$R=\frac{QJ}{I^2t}$

And we are done!

7 0

3 years ago

Jennifer buys school supplies for $12.16. The sales tax is 7.25% what is the amount of tax for Jennifer’s purchases? Show how yo

11111nata11111 [884]

Answer:

$12.16 x .0725 = .8816 round is .88 cents

Step-by-step explanation:

change % to decimal and multiply

7 0

3 years ago

Read 2 more answers

What is 4 copies of 1/5

GarryVolchara [31]

Answer:

1/5 + 1/5 + 1/5 + 1/5 = 4/5

Step-by-step explanation:

6 0

3 years ago