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3 years ago

15

Please help!!!!!!!!! (Solve The quadratic equation by completing the square) 2x^2+12x=66 fill in the value of a and b to complet

e the solution

2 answers:

nydimaria [60]3 years ago

6 0

Answer: in order

x=-3- $\sqrt{42}$

x=-3+ $\sqrt{42}$

Step-by-step explanation:

100 % edmentum

yKpoI14uk [10]3 years ago

5 0

I hope this it

Explanation:

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Mark decided to build a rectangular vegetable garden in his backyard that was 8 feet long and 4 feet wide. Steve liked Mark's ga

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Answer:

24 ft long

Step-by-step explanation:

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4 years ago

Please help!! Thank you so much!!

Olenka [21]

Answer:

AC, AB, BC

Step-by-step explanation:

3x-13+2x-20+x+15=180

6x-18=180

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3 0

3 years ago

Ou want to get an oil change every 4,000 miles. How many oil changes do you get in a year driving 1000 miles a month?

deff fn [24]

3.

1000 miles per month.
12 months in a year.
1000 × 12 = 12000 miles per year

Oil change every 4000 miles.
12000 ÷ 4000 = 3

Therefore 3 oil changes per year.

5 0

3 years ago

Solve for x and explain the steps in your answer. Please Help :/

Solnce55 [7]

I believe the answer is -25/6 :)

7 0

3 years ago

If the mass of a material is 45 grams and the volume of the material is 11 cm^3, what would the density of the material be?

Nuetrik [128]

Answer:

Density of material would be 4.09 $g/cm^3$

units is $g/cm^3$

Step-by-step explanation:

Given: The mass of a material is 45 grams and the volume of the material is 11 cubic centimeter

Density is defined as mass per unit volume.

It is given by:

$p= \frac{m}{V}$ where p is the density , m is the mass and V is the volume of the material respectively.

Here, Density is expressed in grams per centimeter cubed (g/cubic cm)

Here, m = 45 g , V = 11 cubic cm

We get;

$p= \frac{45}{11}$ = 4.09 $g/cm^3$

therefore, density of a material would be, $4.09 g/cm^3$

and its units is $g/cm^3$

7 0

3 years ago