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
aleksandr82 [10.1K]
3 years ago
6

The diameter of a circle is 18 in. 4x +5 represents the radius. Write two equations that you can find the value of x. Then find

the value of x.
Which equations can you use to solve for x ?
Select two equations
A. 4x+5=9
B.2(4x+5)=9
C. 2(4x+5)=18
D. 4x+5=18
Mathematics
1 answer:
Firdavs [7]3 years ago
7 0
A and C are the formulas to use
You might be interested in
How do I solve for X?
lidiya [134]
We use the theory of Pythagoras because the triangle is right.

AB {}^{2}  =  AC {}^{2}  +  BC {}^{2}
since AB = AC = x
8 {}^{2}  = x {}^{2}  + x {}^{2}
64 = 2x {}^{2}
32 = x {}^{2}
x =  \sqrt{32}
x =  \sqrt{16 }  \times  \sqrt{2}
x = 4 \sqrt{2}
6 0
3 years ago
Read 2 more answers
What is the volume of the prism?
Triss [41]

Answer:

volume of hexagonal prism = area of base * perpendicular height

Step-by-step explanation:

4 0
2 years ago
Consider the data set
Serhud [2]
Answer: 3.496

Explanation: You find the mean, which is 57.714. Next, you subtract the mean from each number in the dataset, |55 - 57.714|, |59 - 57.714|, etc. You then add all of those numbers together and divide them by the amount of numbers like you would determining the mean. This gives you 3.496. Also sorry for taking so long to respond I’m on my phone and cannot type as fast as I would on pc.
7 0
2 years ago
How does the value of a decimal change as you move left to right
Lapatulllka [165]
If you move the decimal from left to right, then you make it either a whole number or a percentage.
4 0
3 years ago
Ji-Hun and Kana are running a marathon. Due to the volume of people running, the starts occur in waves. Kana starts at 9:35 a.m.
iris [78.8K]

Answer:

23.52 miles

Step-by-step explanation:

Let us find the number of miles that they would have run.

Kana starts at 9:35 a.m. and runs at an average rate of 7 mph.

Let the time she has spent so far be t.

Speed is given as:

s = d / t

where d = distance and t = time

=> d = s * t

Therefore, for Kana:

d = 7 * t = 7t _____________(1)

Ji-Hun starts at 10:00 am (25 minutes after Hannah) and runs at an average rate of 8 mph.

25 minutes = 25/60 hour = 0.42 hour

So, his time (compared to Kana's) is t - 0.42.

therefore, for Ji-Hun:

d = 8 * (t - 0.42)

=> d = 8t - 3.36 ____________(2)

Equating (1) and (2):

7t = 8t - 3.36

=> 8t - 7t = 3.36

t = 3.36 hours

Therefore, let us find d:

d = 7 * 3.36 = 23.52 miles

So, Ji-Hun will catch up to Kana after 23.52 miles.

6 0
3 years ago
Other questions:
  • The amount of money paid out of earnings that is divided among shareholders.
    6·1 answer
  • You roll a regular six-sided cube
    5·1 answer
  • Write a word phrase for the algebraic expression 2+-9
    7·2 answers
  • In an 8 hour and 30 minute shift a patrolman drove 272 miles. What was his average rate(mph) during the shift?
    11·2 answers
  • Ben is a potato farmer. The function P(a) = 25,000a - 1000 gives the amount
    8·1 answer
  • On a road trip, Maura drove at a speed of 60 miles per hour for the first two hours. She then
    12·1 answer
  • AD contains BC and AD=40. A point on AD is chosen at random. The probability that the point is also on BC is 0.2. What is BC?​
    13·1 answer
  • Which of the following functions has a range of f(x) ≥ 2?
    13·1 answer
  • Choose the fragment that best completes the following sentence. The more money in an account earning compound interest,
    10·1 answer
  • What makes this equation true?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!