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insens350 [35]
3 years ago
9

If using the method of completing the square to solve the quadratic equation

Mathematics
1 answer:
meriva3 years ago
3 0

Answer:

The number to add is (11/2)^2 = 121/4

Step-by-step explanation:

Here, we want to know the number that will complete the square

We rewrite the equation as follows;

x^2 + 11x = -30

x^2 + 11x + (11/2)^2 = -30 + (11/2)^2

x^2 + 11x + 121/4 = -30 + 121/4

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Suppose you have entered 115-mile biathlon that consists of a run and a bicycle race. During your​ run, your average velocity is
Maksim231197 [3]

Answer:

The distance of the run was 27 miles and the distance of the bicycle race was 88 miles.

Step-by-step explanation:

Since I have entered 115-mile biathlon that consists of a run and a bicycle race, and during my run, my average velocity is 9 miles per hour, and during my bicycle race, my average velocity is 22 miles per hour , and I finish the race in 7 hours, to determine what is the distance of the run and what is the distance of the bicycle race, the following calculations must be performed:

7 x 22 + 0 x 9 = 154

5 x 22 + 2 x 9 = 128

4 x 22 + 3 x 9 = 115

Therefore, the distance of the run was 27 miles and the distance of the bicycle race was 88 miles.

3 0
3 years ago
Please help I’m stuck on this question
yan [13]
It helps demonstrate it since it forms a right triangle in the middle with 2 base lengths and a hypotenuse. The areas of the squares can be plugged into the pythagorean theorem in order to find the answer
3 0
3 years ago
Solve for x.
Aleksandr-060686 [28]

The answer is x= 5.4

I did it with pencil and took a picture of my work and explain how I did it and I used my calculator

3 0
3 years ago
Please help me with this!
Troyanec [42]

Answer:

1/2 - 1/8= 4/8 - 1/8= 3/8

Step-by-step explanation:

hope this helps

6 0
2 years ago
What is 123.768 x 764.892
daser333 [38]

Answer:

94666.093488

Step-by-step explanation:

you could have used a calculator for a faster answer but I guess this is fine too

5 0
3 years ago
Read 2 more answers
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