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
Stolb23 [73]
2 years ago
5

#5

Mathematics
1 answer:
Zigmanuir [339]2 years ago
6 0

Answer:

6

Step-by-step explanation:

because 5 is greater than 4

You might be interested in
Can I have your help​
Volgvan

Answer:

3/5

Step-by-step explanation:

sin is opposite divided by the hypotenuse ( longest side)

18 is the opposite of angle x and the hypotenuse is 30

18/30 = 3/5

6 0
3 years ago
A study of the amount of time it takes a mechanic to rebuild the transmission for a 1992 Chevrolet Cavalier shows that the mean
Dovator [93]

Answer:

B) 0.0069

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this question, we have that:

\mu = 8.4, \sigma = 1.8, n = 40, s = \frac{1.8}{\sqrt{40}} = 0.2846

Find the probability that their mean rebuild time exceeds 9.1 hours.

This is 1 subtracted by the pvalue of Z when X = 9.1. So

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{9.1 - 8.4}{0.2846}

Z = 2.46

Z = 2.46 has a pvalue of 0.9931

1 - 0.9931 = 0.0069

So the answer is B.

6 0
3 years ago
The scatter plot shows how many bugs, with and without wings, were found by students on a field trip. How many bugs with wings d
fiasKO [112]
Bugs with wings:

Q = 13
F = 11
G = 20
---------add
   = 44

answer

<span>B) 44</span>
8 0
3 years ago
Read 2 more answers
If the length of a pool is 8 more than twice the width and the total area is 960 square feet, find the length and width of the r
melomori [17]

Answer:

l=48, w=20

Step-by-step explanation:

Let the width of the pool be w feet, then the length will be:

l = 2w + 8

The area of the pool is 960 square feet.

This means that:

w(2w + 8) = 960

Expand and rewrite in standard form to get:

2 {w}^{2}  + 8w - 960 = 0

{w}^{2}  + 4w  - 480 = 0

{w}^{2}  + 24w   - 20w- 480 = 0

{w}(w+ 24) - 20(w + 24) = 0

Factor to get:

(w+ 24)(w  - 20) = 0

w =  - 24 \: or \: w   =  20

We discard the negative value because magnitude is positive.

This means

l = 2 \times 20 + 8 = 48

3 0
3 years ago
**30 POINTS** The Scotts have a yard in the shape of a square. The area of the yard is 128 square meters, and the Scotts want to
miskamm [114]

Answer:

45.24m

Step-by-step explanation:

Area of square = s^2

128 = s^2

s^2 = 11.31m.

This is the length of ONE SIDE.

Squares have four sides.

Homeboy wants to place a fence bordering is entire yard. AKA four sides.

11.31*4= 45.24m

7 0
3 years ago
Other questions:
  • the current temperature in smalltown is 20 degrees fahrenheit. this is 6 degrees less than twice the temperature that it was six
    6·1 answer
  • PLZ HELP ASAP SOLID GEOMETRY
    7·2 answers
  • Someone please help me with this asap
    10·1 answer
  • Evaluate the expression ab for a = 10 and b = 4.
    15·2 answers
  • What is the solution to the equation? 8 + 4s – 2s = 16 A. s = –12 B. s = –4 C. s = 4 D. s = 12
    5·1 answer
  • 4. Can two lines be parallel and perpendicular? Explain.
    12·1 answer
  • Anyone have any idea wut the answer is bec I cant figure it out
    7·1 answer
  • 8/m=6/15<br> use cross multiplying
    11·1 answer
  • On the graph of f(x)=sinx and the interval [0,2π), for what value of x does f(x) achieve a minimum?
    10·1 answer
  • PLEASE HELP WITH THIS
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!