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miskamm [114]
3 years ago
8

Solve This Using the Quadratic Formula :x^2+3x-12=6

Mathematics
1 answer:
andreyandreev [35.5K]3 years ago
3 0

Answer:

X=3 or -6

Step-by-step explanation

Cross multiplication

化成下图所示就可解出

x_{1} =3 \\x_{2} =-6

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Need help answering this question tysm! (Picture attached)
snow_lady [41]

Answer:

1 and 2 answers are correct

Step-by-step explanation:

2x-y= -8

x-y = -4

ADD BOTH (y is cancelled)

3x= -12

x= -4

-8+y=-8

y=0

    -4-y = -4

     Multiply all by -1

4+y=4

y=0

       

3 0
3 years ago
Classify each polynomial based on the number of terms it contains.
cricket20 [7]

Answer:

see explanation

Step-by-step explanation:

A monomial is an expression with one term

A binomial is an expression with 2 terms

A trinomial is an expression with 3 terms

Thus

- 2x² - x + 3.5 ← has 3 terms, hence trinomial

10xyz³ ← has 1 term, hence monomial

- x²y² + 2y ← has 2 terms, hence binomial

8x² + 0.25 ← has 2 terms, hence binomial

x³y^{4} + 2x²y - 3x ← has 3 terms, hence trinomial

3 0
3 years ago
Investors buy a studio apartment for $120,000. Of this​ amount, they have a down payment of $12,000 . Their down payment is what
umka2103 [35]

Answer:

The percentage for both the cases would be 100% and 35% respectively

Step-by-step explanation:

The computation of the percentage of down payment to the purchase price would be:

In the first case, the percentage would be

= Down payment ÷ Total amount

= $12,000 ÷ $120,000

= 100%

For the second case, the percentage would be

=  Down payment ÷ Total amount

= $42,000 ÷ $120,000

= 35%

The percentage for both the cases would be 100% and 35% respectively

6 0
3 years ago
Zax's sister is 3 years older than him. Their mum's age is twice of Zax's age today. Their mum
Bond [772]

Answer:

zax is 31

Step-by-step explanation:

if his sister was 3 years older and born when the mom was 28 add 3 to 28 and you get 31 the age he was born thus this is the age he is today

5 0
3 years ago
Is 8.25 equal to 8.250
fenix001 [56]
Yes 8.25 is equal to 8.250
4 0
4 years ago
Read 2 more answers
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