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quester [9]
3 years ago
8

Factor 7x^4 - 63please I can't afford to fail my homework

Mathematics
1 answer:
Dmitrij [34]3 years ago
4 0
7(x^2+3)(x^2-3)
I used mathpapa.com
Hope this helps!
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6÷2(1+2)= ???????????
choli [55]
3(1+2)
3+6
9 ( the answer is nine)
first you divide six and two then use the distributive property to multiply three and one and three and two, then add three and six to get nine.
3 0
3 years ago
(x+7)^2+9=0<br><br> Find x with quadratics
Ne4ueva [31]

Answer:

x = -7 ±3i

Step-by-step explanation:

(x+7)^2+9=0

Subtract 9 from each side

(x+7)^2+9-9=0-9

(x+7)^2=-9

Take the square root of each side

sqrt((x+7)^2) = ±sqrt(-9)

We know sqrt(ab) = sqrt(a) sqrt(b)

x+7 = ±sqrt(-1) sqrt(9)

We know that sqrt(-1) is the imaginary number i

x+7 = ±i *3

x+7 =±3i

Subtract 7 from each side

x+7-7 = -7 ±3i

x = -7 ±3i

6 0
3 years ago
Read 2 more answers
The screen on a computer monitor has a length of 15 inches and a width of 12 inches. What is the length of the diagonal to the n
Mekhanik [1.2K]

Answer:

19.2

Step-by-step explanation:

You use the pyth.

15^2+12^2=369

Then find the square root of 392 which is 19.2

I hope this helps! have a good day :)

5 0
3 years ago
Kaitlyn bought movie tickets for herself and 12 family members. If a movie tickets costs $13.75 how much did kaitlyn spend on al
Virty [35]

12 people plus herself is 13 people. So 13.75(13)=178.75.


So, $178.75 for all tickets. But... I might be wrong.

7 0
3 years ago
On the first day in each month, Enid deposited $4 into her bank account and Jim deposited $3 into his. They opened these account
ohaa [14]

Answer:

The amount of money in Enid bank account can be written as a linear equation.

Ye = Xe + $4*m

where Ye is the money that Enid has in her account, m is the number of months that have passed since she opened it, and Xe is the initial deposit.

For Jim, the equation is similar:

Yj = Xj + $3*m

where Yj and Xj are similar as above.

Between May 15 and December 31 of the same year, we have 7 months (where i am counting December because the deposit is made in the first day of the month).

Then we have that:

Ye = $72 = Xe + $4*7 = Xe + $28

Xe = $72 - $28 = $44

So in May 15, Enid deposited $44.

For Jim we have:

Yj = $72 = Xj + $3*7 = Xj + $21

Xj = $72 - $21 = $51

So in May 15, Jim deposited $51.

5 0
3 years ago
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