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
Sergio039 [100]
2 years ago
6

Could some one help me plz

Mathematics
1 answer:
AlladinOne [14]2 years ago
7 0
X=2.5
Because y ok get 5x-8 for the triangle and x+2 for the square set them up to 5x-8=x+2 and you solve yo get 4x=10 and once you divide you get 2.5
You might be interested in
Whats the hcf of 108 and 308​
inna [77]

Answer:

i think this should help

5 0
3 years ago
Read 2 more answers
Mackenzie spent a total of $17.50 on Saturday afternoon.She bought a movie ticket for $7.25 and snacks for $4.95.She spent the r
Helga [31]
17.50-7.25-4.95=5.30/2=2.65
5 0
2 years ago
Create and solve a system of equations and solve for x and y.
Helga [31]

Answer:

Step-by-step explanation: x+4-5=y

8 0
2 years ago
Assume that there is a 4​% rate of disk drive failure in a year. a. If all your computer data is stored on a hard disk drive wit
kap26 [50]

Answer:

a) 99.84% probability that during a​ year, you can avoid catastrophe with at least one working​ drive

b) 99.999744% probability that during a​ year, you can avoid catastrophe with at least one working​ drive

Step-by-step explanation:

For each disk drive, there are only two possible outcomes. Either it works, or it does not. The disks are independent. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

4​% rate of disk drive failure in a year.

This means that 96% work correctly, p = 0.96

a. If all your computer data is stored on a hard disk drive with a copy stored on a second hard disk​ drive, what is the probability that during a​ year, you can avoid catastrophe with at least one working​ drive?

This is P(X \ geq 1) when n = 2

We know that either none of the disks work, or at least one does. The sum of the probabilities of these events is decimal 1. So

P(X = 0) + P(X \geq 1) = 1

We want P(X \geq 1). So

P(X \geq 1) = 1 - P(X = 0)

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{2,0}.(0.96)^{0}.(0.04)^{2} = 0.0016

P(X \geq 1) = 1 - P(X = 0) = 1 - 0.0016 = 0.9984

99.84% probability that during a​ year, you can avoid catastrophe with at least one working​ drive

b. If copies of all your computer data are stored on four independent hard disk​ drives, what is the probability that during a​ year, you can avoid catastrophe with at least one working​ drive?

This is P(X \ geq 1) when n = 4

We know that either none of the disks work, or at least one does. The sum of the probabilities of these events is decimal 1. So

P(X = 0) + P(X \geq 1) = 1

We want P(X \geq 1). So

P(X \geq 1) = 1 - P(X = 0)

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{4,0}.(0.96)^{0}.(0.04)^{4} = 0.00000256

P(X \geq 1) = 1 - P(X = 0) = 1 - 0.00000256 = 0.99999744

99.999744% probability that during a​ year, you can avoid catastrophe with at least one working​ drive

7 0
3 years ago
The figure is formed from rectangles . Find the total area
Anna35 [415]
It might be c. im not really sure, but that's what I got. sorry if its wrong...
8 0
3 years ago
Other questions:
  • Which number line represents the following statement?<br><br> A number is more than negative five.
    5·2 answers
  • Suppose $50,000 is divided into two bank accounts. one account pays 4% simple interest per year and the other pays 6.4%. after f
    10·1 answer
  • 42.5% of what is 25.16
    10·2 answers
  • Josh get paid 100 in one day he work 5 hours a day how much he makes an hour?
    11·2 answers
  • Any help If possible Thank you so much ❤
    14·1 answer
  • Use a decimal number to describe the shaded amount<br><br> 5 out of 10
    7·2 answers
  • Whats the measure of angle E ?
    6·1 answer
  • HELP PLEASE!! a space station orbits earth at a rate of 57 miles every 3 seconds
    6·1 answer
  • Solve the formula for the specified variable. V=XLJ for X
    12·1 answer
  • Mm<br> E<br> 9. Solve: 3(x+4) ≤36<br> x&gt; 8<br> x≤8<br> x≤12<br> X&gt;12
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!