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
Mekhanik [1.2K]
3 years ago
15

A and b find volume and the total surface

Mathematics
1 answer:
Stels [109]3 years ago
5 0

Answer:

Volume=a3 or a*a*a

Volume=24*36*18

Volume=15552inch^3

For surface are formula is

A = 2wl + 2lh + 2hw

You might be interested in
5(3x+2)-2(4x-1)<br> Can someone help me by showing step by step on what to do please?
Eduardwww [97]

To solve this we need to use this formula:

a(b + c) = ab + ac

5(3x + 2) - 2(4x - 1) = 15x + 10 - 8x + 2 =  \\  = 7x + 12

4 0
3 years ago
Read 2 more answers
23.7-2.5x8= Work out
Lubov Fominskaja [6]

Answer:

23.7 -2.5 X 8 = 23.7 - 20

= 3.7

8 0
3 years ago
Henry wants to pour 57.93 grams of salt into a container. So far, he has poured 28.3 grams. How much more salt should Henry pour
-BARSIC- [3]

Answer:

29.63

Step-by-step explanation:

Since there is already 28.3 grams in the container, you just have to subtract 57.93 and 28.3 to get your answer because 57.93 is the total.

7 0
3 years ago
A railroad crew can lay 6 miles of track each day. They need ti lay 174 miles of track. The length, L (in miles), that is left t
Alex17521 [72]
X + y = 13
- x + y = 3
6 0
3 years ago
The lifespan (in days) of the common housefly is best modeled using a normal curve having mean 22 days and standard deviation 5.
Natasha_Volkova [10]

Answer:

Yes, it would be unusual.

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.

If Z \leq -2 or Z \geq 2, the outcome X is considered unusual.

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 = 22, \sigma = 5, n = 25, s = \frac{5}{\sqrt{25}} = 1

Would it be unusual for this sample mean to be less than 19 days?

We have to find Z when X = 19. So

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

By the Central Limit Theorem

Z = \frac{19 - 22}{1}

Z = -3

Z = -3 \leq -2, so yes, the sample mean being less than 19 days would be considered an unusual outcome.

7 0
2 years ago
Other questions:
  • F(x) = x2 -2x &amp; g(x) = 12-8x.<br> Find f(2) - g(3)
    15·1 answer
  • Help plzzz need help
    8·1 answer
  • A portion of a daycare has been set aside for toddlers under 2. the area is a triangle with height 2.5 m and width 4 m. a scale
    12·2 answers
  • A jewelry maker needs 5 inch pieces of wire from sections that are each 4 feet in length. What is the greatest number of 5 inch
    5·1 answer
  • What is the measure of X
    11·1 answer
  • A trip 50 miles out of town takes 45 minutes. If the same person
    10·1 answer
  • Choose the correct simplification of (3xy6)2(y3)3.
    13·2 answers
  • Melissa is making a piece for a stained glass window that has the shape and measures shown below. Point C is the center of the p
    10·2 answers
  • PLZ HELP THIS IS OVER DUE MY MOM IS SO MAD
    12·1 answer
  • Angle A and B are supplementary angles. Angle A measures 45 degrees. What is the measurement of angle B?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!