3 years ago

Solve y=x2-5 for x.

1 answer:

7 0

Answer: x=+/- square root of y+5 (A, i think this one kinda confused me)

y=x^2-5
substitute y for 0
0=x^2-5
subtract x^2 on both sides
-x^2=-5
since they both can be negative and positive change signs to positive to be easier
x^2=5
square root both sides
x=+/- square root of 5

You might be interested in

I NEED HELP ASAP!! Subtract. -30-27= ? -5-(-4)= ?

pashok25 [27]

-30-27= -57
When both numbers are negative, they are “added” in a sense, but remain negative.

-5-(-4)= -1
You have to multiply the (-4) by the “invisible” -1 on the outside before you add/subtract.

5 0

3 years ago

help‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎

Aloiza [94]

Answer:

The answer is B. inches....

4 0

2 years ago

Read 2 more answers

1. 100 students who are in 9th or 10th grade were asked if they participated in at least one extracurricular activity (sports, m

Marianna [84]

I can not set up a 2 way table online but what they want is a collom of the information neatly laid out...

With the 9th graders in one collom and the 10th graders in the other

like this

                   9th grader   10th grader
# of students    32                      40
# of participated 32                      18

Draw this out with lines and it will be correct.

I hope this helps GOOD LUCK...this is tough math for a middle schooler.

5 0

3 years ago

Mike drew the following figure in his notebook. What is the value of ? Show all work

Gre4nikov [31]

Answer:

Mike drew the following figure in his notebook. What is the value of ? Show all work

Step-by-step explanation:

Is 288

3 0

2 years ago

Which is the graph of y= [X] - 2?

Vera_Pavlovna [14]