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
Emmett participated in a race. During the race, he ran 5 miles north and then ran 12 miles west. What is the shortest distance t
Lelechka [254]
I'd suggest you sketch this situation.  If you did, you'd likely see right away that the shortest distance back to the starting point would be the hypotenuse of the right triangle whose legs are of lengths 5 miles and 12 miles.

Apply the Pythagorean Theorem to solve this.
4 0
3 years ago
Plz help i need helppppppp
Goshia [24]

Answer:

1) 36

b) 5

c) 3.0

Step-by-step explanation:

1) The recursive formula that defines the given sequence is

a_1=12 \\  a_n=a_{n-1}+4.

That means we keep adding 4 to the subsequent terms:

The sequence will be:

12,16,20,24,28,32,36,...

Therefore the seventh term is 36.

2) The sequence is recursively defined by;

a_1=20\\  a_n=a_{n-1} - 5

This means, we have to keep subtracting 5 from the subsequent terms.

The sequence will be;

20,15,10,5,...

Therefore the fourth term is 5

3) The sequence is recursively defined by:

f(n+1)=f(n)+0.5

where f(1)=-1.5

This means that, the subsequent terms can be found by adding 0.5 to the previous terms.

The sequence will be:

-1.5,-1.0,-0.5,0,0.5,1,1.5,2.0,2.5,3.0,....

Therefore f(10)=3.0

8 0
4 years ago
Please help me solve this problem guys
mylen [45]

Answer:

17%

Step-by-step explanation:

Again, as the amount of years increase, the population of bees gets multiplied by 0.83. We can rewrite this to 83%, and then again rewrite this to 100%-17%. We can see now that the population of bees decreases by 17% each year.

3 0
3 years ago
Trisha had the following seven distances (in feet) in the triple jump.
butalik [34]
The range of a data set is the greatest value minus the smallest value.

The greatest value here is 32, and the smallest value is 27:

\sf Range=32-27=\boxed{\sf 5}
5 0
3 years ago
Which of these numbers are divisors of 64? 2 6 12 16
ludmilkaskok [199]

64 is able to be divided by 2 and 16

hope that helps

5 0
3 years ago
Other questions:
  • Use synthetic division to solve (3x^4+6x^3+2x^2+9x+10)/ (x+2)
    13·2 answers
  • What is (x - 8)(x + 4) + (x - 3)(x + 9)?
    10·1 answer
  • Solve the following inequality.
    9·1 answer
  • Use a common denominator 1/6 7/10
    11·1 answer
  • Anybody Know This. ?
    10·2 answers
  • Solve for x.<br> *x+3x+4=3+3
    13·1 answer
  • The diameter of a circle is 28 yards. What is the circle's area?
    9·1 answer
  • What is 3.2 x 10^3=????????
    9·2 answers
  • Quadrilateral BCDE is a kite.<br>What is AC ?​
    11·1 answer
  • Which undefined terms are needed to define parallel lines quizlet?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!