3 years ago

Solve for x. enter answer in the box

Mathematics

1 answer:

Sphinxa [80]3 years ago

4 0

Answer:

I found x here it is → x I found it

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What constant do you need to add to each quadratic to complete the square?

babunello [35]

Answer:

1. 4

2. 16

3. 9

Step-by-step explanation:

Completing the square requires a quadratic in $ax^2+bx=c$ form. Once in this form, calculate $(\frac{b}{2})^2$ .

1. $(\frac{b}{2})^2=(\frac{-4}{2})^2=4$

2. $(\frac{b}{2})^2=(\frac{-8}{2})^2=16$

3. Requires you divide everything by 3 first.

$\frac{3x^2+18x}{3} =\frac{249}{3} \\x^2+6x=81$

$(\frac{b}{2})^2=(\frac{6}{2})^2=9$

6 0

3 years ago

Which of the following are equations for the line shown below? Check all that

Alona [7]

c) y= -2x +1

Step-by-step explanation:

y= -2x +1

m= (- 3 -5)/2+2

= -2

c=1

y-(-3)= -2(x-2)

y= -2x +4 -3

y = -2x+1

6 0

3 years ago

What is the area of the parallelogram * 19 sq cm 32 sq cm 56 sq cm 28 sc cm

Softa [21]

area = base times height, or 8 cm times 4 cm, or 32 cm^2

8 0

3 years ago

Use I = PRT to solve. (time is in years) Find R. [?]% (Give your answer as a percent.) P = $1,200 1 = $99 T = .75 years Enter

KatRina [158]

Answer:

Rate = 0.11%

Step-by-step explanation:

Using I = PRT

Where,

P = Principal = $1200
R = Rate = ✘
T = Time in years = 0.75 years
I = Interest = $99

⟼ I = PRT

Substitute values

⟼ 99 = 1200 × 0.75 × ✘

Multiply

⟼ 99 = 900✘

Divide both sides by the coefficient of ✘

⟼ 99/900 = ✘

⟼ ✘ = 0.11

Therefore, Rate is 0.11%

7 0

2 years ago

jada walks up to a tank of water that can hold up to 10 gallons. When it is active, a drain empties water from the tank at a con

alexdok [17]

Answer:-2/3 gallon per minute

-2/3 gallon per minute

Step-by-step explanation:

6 0

3 years ago

Solve for x. enter answer in the box​

Solve for x. enter answer in the box