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3 years ago

13

How can you solve quadratic equation in one variable using factoring method?

1 answer:

Tresset [83]3 years ago

4 0

Take a quadratic equation in standard form:
If there exists a sum of two numbers that equal b, whose addends produce a product that equals c. You can rewrite the quadratic as a product of two binomials.

For example take
When thought through throughly, -5 had addends, -2 and -3 that produce 6 when multiplied
Thus, we can rewrite the quadratic as.

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Natalia solved the problem 74.4/12=6.2. complete the model with partial products check Natalia's work using multiplication

tia_tia [17]

Answer:

Natalia's work is wrong.

Step-by-step explanation:

Natalia divided a decimal number by an entire number. Since division is a operation derived from multiplication, the best approach to check if work was good is multiplying the given result by denomination, that is:

1) $x = 6.2\times 12$ Given.

2) $x = \left(6+0.2\right)\times 12$ Definition of addition.

3) $x = 6\times 12 + 0.2\times 12$ Distributive property.

4) $x = 72 + \frac{2}{10}\times 12$ Definitions of multiplication and decimal number.

5) $x = 72 +[2\cdot (10)^{-1}]\cdot 12$ Definition of division/Associative property.

6) $x = 72 + [2\cdot 12]\cdot (10)^{-1}$ Associative property.

7) $x = 72 + 24\cdot 10^{-1}$ Definition of multiplication.

8) $x = 72 + \frac{24}{10}$ Definition of divsion.

9) $x = 72 + 2.4$ Defintion of decimal number.

10) $x = 74.4$ Definition of addition/Result

Natalia's work is wrong.

5 0

2 years ago

3. f(-4) - 3.9(-2) =

snow_lady [41]

Answer:

Step-by-step explanation:

5 0

2 years ago

The two cheese questions please!!

Reil [10]

Answer:

Ham costs: $8.249 repeating

Overall cost: 1.26 repeating

Step-by-step explanation:

$4.95 x 5/3= 8.249

2/3 + 3/5= (2 x 5) + (3 x 3)/ 3 x 5=

19/ 15 or 1 4/15

15 divided by 19= 1.26 repeating

6 0

2 years ago

Read 2 more answers

How many 1/2 cups servings of r ice are in 3/8 cups of rice? Explain your answer

bija089 [108]

1/2÷ 3/8=4/3. To divide one fraction by another, invert (turn upside-down) the second fraction, then multiply.

5 0

2 years ago

Omertà biked 325 miles in 5 day. If she biked the same number of miles each day, how far did she bike each day

Bezzdna [24]

65 because 325÷5=65.

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2 years ago

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