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
What is the domain of f(x) = 3x?
Stolb23 [73]
Answer is C.
All real numbers

hope it helps
5 0
2 years ago
Read 2 more answers
The distance between the school and the airport on a map is 7.25 cm. The scale of the map is 1 cm : 12 m. What is the actual dis
Naily [24]

Answer: 87 M

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
a video game arcade offers a yearly membership with reduced rates for game play. A single membership costs $60 per year. Game to
7nadin3 [17]

slope is $0.10            <em>($1.00 per 10 tokens = $0.10)</em>

y-intercept is $60    <em>($60 is the annual fee)</em>

y = .10x + 60            <em>(y = mx + b)</em>  

domain is x ≥ 0        <em>(you can't buy a negative number of token)</em>

range is y ≥ 60        <em>(input the domain (x ≥ 0) to find the range)</em>

Answer: the y-intercept of the function is $60

6 0
3 years ago
Read 2 more answers
Complete the square 4y^2+x+8y+1=0
sammy [17]

Answer: Simple and best practice solution for 4y^2+8y+1=0 equation. ... Begin completing the square. ... Square it (1) and add it to both sides.

Step-by-step explanation: Complete the square for x2+2x x 2 + 2 x.

4 0
2 years ago
50/24= x/495<br> what does x =
vesna_86 [32]

Answer:

1031.25 =x

Step-by-step explanation:

50/24 = x /495

We can use cross products to solve

50 *495 = 24*x

24750 = 24x

Divide each side by 24

24750/24 =24x/24

1031.25 =x

7 0
2 years ago
Read 2 more answers
Other questions:
  • Is x^2+13x-4=0 a quatratic function? Why?
    6·1 answer
  • Gracie uses 10 beads on each necklace she makes. She has 60 beads to use. How many necklaces can Gracie make?
    11·2 answers
  • A rectangular pool is 20 ft wide and 50 ft long. the pool is surrounded by a walkway. the walkway is the same width all the way
    14·1 answer
  • (-12, -1) and (-3,-4)
    7·1 answer
  • Solve the system by graphing. Where necessary, indicate when the system has no solution or infinitely many solutions.
    13·2 answers
  • HELP PLEASE!!!!!!!!​
    14·1 answer
  • 52, 24, 5, 72, 49, 52,9 Find the range of the data set.​
    10·1 answer
  • What is the slope of the line?
    5·1 answer
  • 2(5x + 3) -x + 3 = 18
    9·1 answer
  • The regular price of an item at store is $2000 if the sale price is $1,120, what percent is the discount
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!