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Sonja [21]
3 years ago
9

What is the first step in solving quadratic equations by finding square roots? a. give the positive and negative answer c. squar

e root both sides to isolate x b. isolate the x squared by using inverse operations d. none of these Please select the best answer from the choices provided A B C D
Mathematics
1 answer:
daser333 [38]3 years ago
4 0

Answer:

C: isolate the x squared by using inverse operations

Step-by-step explanation:

This method of solving quadratic equation is used when there is only x² term and no x term. Thus;

For example, we have a quadratic equation;

x² - 1 = 80

To solve this by square root method, the first step we have to take is to isolate the x² term by inverse operation which is by addition of 1 to both sides to get rid of the -1 on the left side so that x² can be isolated.

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How to calculate 99 : 5​
Goryan [66]

Answer:

19.8

Step-by-step explanation:

99/5= 19.8

5 0
3 years ago
A truck's gas tank holds 50 gallons of gas. if one gallon takes 30 seconds to pump, how many minutes will it take to fill the em
umka2103 [35]
To find how long it will take to fill the tank, you can use the idea that every 30 seconds will get you one gallon closer to being full.

This means to fill 50 gallons, you will need 50 groups of 30 seconds.  

50 x 30 = 1500 seconds

1500/60 = 25 minutes.

It will take 25 minutes.  

You could also think of it as filling 2 gallons every minute.  It would take 25 of these.
7 0
2 years ago
Y+6=-6(x+3)<br> rewrite the equation in Ax+By=C
kow [346]

Answer:

y=-6x-24

Step-by-step explanation:

just expand

y+6=-6x-18

then move the six from the left to the right

y=-6x-24

6 0
3 years ago
Seriously guys, begging for your help. First to successfully do this right and show me their work gets brainliest
koban [17]

Answer:

1000 one hundred 56 million bagillion and 9

Step-by-step explanation:

5 0
3 years ago
15x + 45 = 15 (3 + x) always never one solution how do I do it​
const2013 [10]

Answer:

0

Step-by-step explanation:

First, you need to try to get rid of the ().

To do this:

15 * 3 and 15 * x

This makes 45 and 15x after the = , so the formula is now:

15x + 45 = 45 + 15x

Now get the 15x to the left side. When a number switches sides, it becomes negative when positive and positive when negative. So in this case 15x will become -15x and the 45(on the left) becomes - 45

15x - 15x = 45 - 45

Answer: 0

8 0
3 years ago
Read 2 more answers
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