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
Setler [38]
3 years ago
13

The width of a rectangle is 2 less than twice its length. If the area of the rectangle is 110

Mathematics
1 answer:
yanalaym [24]3 years ago
3 0

Answer:

Use the formula of areal*b*h

You might be interested in
What is X? combined with 10x^2
nordsb [41]

Answer:

20 lel. whwhwhw

Step-by-step explanation:

HQHWWNWJW

3 0
3 years ago
I need help ASAP giving brainliest!!
Evgesh-ka [11]

Answer:

9

Step-by-step explanation:

A composite number is a positive integer that can be formed by multiplying two smaller positive integers.

4 0
3 years ago
(92 - 12) – 4 = 2 (2 + for<br> 4.0)<br> I
Goshia [24]

Answer:

Step-by-step explanation:

(92 - 12) – 4 = 2 (2 + for

4.0)

I

7 0
3 years ago
Production of a gas flow meter takes place in two distinct operations. Measurements (n = 15) of the time required for the first
Karolina [17]

Answer:

a) P(a > 80) = 0.323

b) The 95% confidence interval = (73.40, 80.60)

c) The 95% confidence interval expresses that the mean of the distribution can always be found in the given range, with a 95% confidence level.

Step-by-step explanation:

X ~ (45, 4)

Y ~ (32, 2.5)

(X+Y) ~ (77, 6.5)

Let a = (X+Y)

a) Probability that the time required to complete both of those steps will exceed 80 min = P(a > 80)

This is a normal distribution problem

We then standardize 80 min time

The standardized score for any value is the value minus the mean then divided by the standard deviation.

z = (a - μ)/σ = (80 - 77)/6.5 = 0.46

To determine the probability the time required to complete both of those steps will exceed 80 min = P(a > 80) = P(z > 0.46)

We'll use data from the normal probability table for these probabilities

P(a > 80) = P(z > 0.46) = 1 - P(z ≤ 0.46) = 1 - 0.677 = 0.323

b) 95% confidence interval for the expected total time required to produce one flow meter.

We need to obtain the margin of error

Margin of error = (critical value) × (standard error of the sample)

Critical value for a 95% confidence interval = critical value for a significance level of 5% = t(15-1, 0.05/2) = 2.145 (using the t-score since information on the population mean and standard deviation isn't known)

Standard error for the sample of sum of times = (standard deviation of the sum of times)/√n = (6.5/√15) = 1.678

Margin of error = 2.145 × 1.678 = 3.60

Limits of the confidence interval = (Sample mean ± margin of error)

Lower limit of the confidence interval = (Sample mean - margin of error) = 77 - 3.60 = 73.40

Upper limit of the confidence interval = 77 + 3.60 = 80.60

The confidence interval = (73.40, 80.60)

4 0
3 years ago
Find all maxima and minima of the function given below. Use a horizontal span of -6 to 6. (Round your answers to two decimal pla
AVprozaik [17]
Equation: 4 + 4x + x²

Maxima: No maximum value from said equation
Minima: x = -2 since that is the only critical point in the equation
6 0
3 years ago
Other questions:
  • Find the value of x please
    12·2 answers
  • How do you solve 1/3 of 4500
    11·1 answer
  • Determine the decision criterion for rejecting the null hypothesis in the given hypothesis​ test; i.e., describe the values of t
    11·1 answer
  • HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
    15·1 answer
  • Which correctly describes the effects on
    8·1 answer
  • Solve for x: 1/3 (x-22) = 4x<br>x = -2 <br>x = 34<br>x = 2 <br>x = -10 ​
    13·1 answer
  • Differentiate with respect to t
    9·1 answer
  • Plz Help Plz...<br><br><br><br>this is hard cause im a 7th grader doing 8th grade math plz Help​
    9·1 answer
  • Round your answer to two decimal places.
    8·1 answer
  • The seventh graders at your school have collected 345 cans for the canned food drive and are averaging 115 cans per day. The eig
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!