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2 years ago

Which equation has an a-value of -2,a b-value of 1 , and a c-value of 3? A. 0=-2x^2+x+3 B. 2x^2+x+3 C. 0=-2x^2+3. 0=2x^2-x+3

Mathematics

1 answer:

katrin2010 [14]2 years ago

6 0

Answer:A

Step-by-step explanation:

0=-2x^2+x+3

-2x^2+x+3=0

a=-2 b=1 c=3

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16x+14y=8 -63x-14y=133

artcher [175]

Answer:

(-3, 4)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Algebra I

Solving systems of equations using substitution/elimination
Solving systems of equations by graphing

Step-by-step explanation:

Step 1: Define Systems

16x + 14y = 8

-63x - 14y = 133

Step 2: Solve for x

Elimination

Combine 2 equations: -47x = 141
Divide -47 on both sides: x = -3

Step 3: Solve for y

Define original equation: 16x + 14y = 8
Substitute in x: 16(-3) + 14y = 8
Evaluate multiplication: -48 + 14y = 8
Add 48 on both sides: 14y = 56
Divide 14 on both sides: y = 4

Step 4: Graph Systems

Check the solution set.

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1 year ago

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snow_lady [41]

Gradient =2 because the slope is 2 units. Y-intercept = -2 because it crosses the y-line at -2.

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2 years ago

I need help my teacher went over it but I don't get it

Dahasolnce [82]

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2 years ago

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I need a 5 digital number

azamat

Answer:

What do you mean by that?

Step-by-step explanation:

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3 years ago

Investors buy a studio apartment for $180,000. Of this amount, they have a down payment of $18,000. Their down payment is what

vovangra [49]

Answer:

$180,000 is 10% $9,000 is 5%

Step-by-step explanation:

To solve for this, you would set up a ratio and cross-multiply.

$18,000/$180,000 = x%/100%

(18,000)(100) = 180,000x

1,800,000 = 180,000x

10 = x

9,000/180,000 = x/100

900,000 = 180,000x

5 = x

$18,000 ÷ 2 = $9,000

10% ÷ 2 = 5%

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2 years ago