1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mars2501 [29]
3 years ago
12

Which of the following are solutions to the equation below? Check all that apply. 9x^2-64=0

Mathematics
1 answer:
nikdorinn [45]3 years ago
4 0

Answer:

E. -8/3

F. 8/3

Step-by-step explanation:

9x^2-64=0

Add 64 to each side

9x^2-64+64 = 0+64

9x^2 =64

Divide each side by 9

9x^2/9 = 64/9

x^2 = 64/9

Take the square root of each side

sqrt(x^2) = ±sqrt(64/9)

We know that sqrt(a/b) = sqrt(a)/sqrt(b)

x = ±sqrt(64)/sqrt(9)

x = ± 8/3

You might be interested in
Somebody please help with this problem
Mrrafil [7]

Step-by-step explanation:

We have been given that AE=BE and \angle1\cong \angle2.

We can see that angle CEA is vertical angle of angle DEB, therefore, m\angle CEA=m\angle DEB as vertical angles are congruent.

We can see in triangles CEA and DEF that two angles and included sides are congruent.

\angle 1\cong \angle 2

AE=BE

\angle CEA\cong\angle DEB or \angle 3\cong \angle 4  

Therefore, \Delta CEA\cong \Delta DEB by ASA postulate.

Since corresponding parts of congruent triangles are congruent, therefore CE must be congruent to DE.

5 0
3 years ago
Show that there is no solution for the radical equation 4w+4=-4.
Ad libitum [116K]

Answer:

there is a solution

w= -2

Step-by-step explanation:

4w+4=-4

    -4    -4

4w=-8

/4    /4

w=-2

3 0
3 years ago
PLZZZ HELP ME WHAT DOES x=?????? WHOEVER ANSWERS FORST GETS BRAINLIEST THANKYOUUU
Vinil7 [7]
I think it’s 17 cause 51/3 is 17.
6 0
3 years ago
Read 2 more answers
Which is greater: inches in a mile or seconds in a day? Show how you know.​
MrMuchimi

Assuming you don't know the exact numbers, we can sequentially figure out the number of inches in a mile and seconds in a day

Inches in a mile:

There are 5280 feet in a mile.

5280*12 = 63360 inches in a mile

Seconds in a day:

There are 24 hours in a day

There are 24*60 = 1440 minutes in a day

There are 1440*60 = 86400 seconds in a day

There are more seconds in a day than inches in a mile.

4 0
4 years ago
At the train station, the cost for parking is based on an hourly fee. Patrons that park for 2 hours or less are charged at the s
Aleksandr-060686 [28]

Answer:

96

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • Nellie is buying bird seed to put in her bird feeders. She uses about 10 pounds of bird seed each week, but has room to store an
    6·1 answer
  • Fill in the blank.
    9·2 answers
  • Find the degree of w
    9·2 answers
  • Which table shows a proportional relationship?
    15·2 answers
  • Plzzz helppppp. 4>n/-4
    7·2 answers
  • On August 1, Stacy had a negative balance in her bank account: she was $43 in debt. Stacy deposits $75 from her paycheck on Augu
    12·1 answer
  • Which numbers are a distance of 6 units from 2 on the number line? Select the location on the number line to plot each point.
    15·1 answer
  • Determine the intercepts of the line.<br> x-intercept:( , ) <br> y-intercept:( , )
    14·2 answers
  • HELP!! I will give brainliest to best answer! :))
    6·2 answers
  • The line passes through the point (3,0) and has a slope of -3
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!