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
Zolol [24]
3 years ago
9

What is the value of x in the equation 25x^2=16? A.+ 5/4 B.+4 C.+ 4/5 D.+16/25

Mathematics
1 answer:
4vir4ik [10]3 years ago
5 0

Answer:

x = ± 4/5

Step-by-step explanation:

25 x^2 = 16

Divide each side by 25

25 x^2 /25 = 16 /25

x^2 = 16 /25

Take the square root of each side

sqrt(x^2) = ±sqrt(16/25)

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

x = ±sqrt(16) / sqrt(25)

x = ± 4/5

You might be interested in
4(2a+P)=c+p+a<br> express a in terms of c and p
ExtremeBDS [4]

Answer:

\frac{c-3p}{7}

Step-by-step explanation:

   1) 4(2a+p)=c+p+a

   2) Expand: 8a+4p=c+p+a

   3) subract a and 4p: 7a=c-3p

   4) Divide: a=\frac{c-3p}{7}

3 0
2 years ago
You bought a house in 1963 for $56,000. Since then, you have increased the value 6% per year. What is the value of your house in
7nadin3 [17]

Answer:

244,160

Step-by-step explanation:

8 0
3 years ago
HELP PLEASE FOR 35 POINTS!!!! Solve the rational equation 3 divided by x equals quantity 4 times x plus 3 divided by x squared,
denis23 [38]

Answer:

x=-3

Step-by-step explanation:

So, we are given:

\frac{3}{x}=\frac{4x+3}{x^2}

First, we should immediately rule out 0 as an answer. This is because the if x=0, the equation would be undefined.

x\neq 0

Now, cross multiply.

3(x^2)=x(4x+3)

3x^2=4x^2+3x

Divide everything by x (and we can do this safely because we already know x cannot be equal to zero).

3x=4x+3

-x=3

x=-3

We didn't run into any possibilities for extraneous solutions.

7 0
3 years ago
There is a total of 80 firefighters in a town. There are 4 fire departments in the town: North, South, East, and West. The North
andreev551 [17]
Shshshshshwlkwkskzjsis
7 0
2 years ago
Find the center and radius of the circle with the given equation. Then select the correct graph of the equation.
likoan [24]

Answer:

Step-by-step explanation:

In order to find the center and the radius of this circle, you have to complete the square on it. And only for the x-terms, because the y term is squared and there is no other y term. We'll get to that in a second.

Take half the linear x-term, square it and add it to both sides. Our linear term is 10. Half of 10 is 5, and 5 squared is 25. We add 25 to both sides:

The reason we do this is to create a perfect square binomial inside that set of parenthesis. Simplifying the right side as well gives us:

This tells us that the center is (-5, 0). Remember when I said we would get back to the y terms? Because there was only a y-squared and no other y terms, that is the same as writing the equation as

The radius is the square root of the constant. So the radius is 6.

D is the graph you want.

3 0
3 years ago
Other questions:
  • A system of two equations is shown below: equation
    6·1 answer
  • In 4th grade :) help plss
    6·2 answers
  • The ratio of trucks to cars is 7 to 8. If there are a totalof 21 trucks, how many cars are there?
    11·1 answer
  • Which of the following is equivalent to 36ab^2 - 28ab when it is completely factored?
    7·1 answer
  • Lu is graphing the ordered pair (3,5). Starting at the origin, what does she
    14·1 answer
  • Can you help me find this solution if you can explain it to me please also
    14·1 answer
  • Pls help me find the sum ❣️
    9·1 answer
  • Find the slope of a pipe that slopes down 3/5 inch per foot
    8·1 answer
  • Please just give me the actual answer to this question Or at least help me understand because I don't get it and I have looked i
    12·1 answer
  • What should your units on your base area calculations be, and why? how is this different from the units on your volume calculati
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!