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
blagie [28]
3 years ago
14

Find the surface area

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
7 0
First, you need to find the area of the rectangle. As you already know, the formula for area is length times width. So, you would need to do 7 times 6, which is 42. Now, the triangle is a little more complicated. the height is about 2 and the base is 6. 6 times 2 is 12, but if you remember the area of a triangle, it's B times H divided by 2, so 12 divided by 2 is 6, so 42 plus 6 is 48. I THINK that is the surface area :)
You might be interested in
"If 5 is decreased from double Joe's weight, the result is 230. What is Joe's weight?"<br> 30
Gala2k [10]

Answer:

117.5 or 235/2

Step-by-step explanation:

We can set up an equation for this problem:

Lets Joe's weight be x

then:

2x -5 = 230

therefore:

2x = 235

x = 117.5 or 235/2

3 0
3 years ago
Deshawn is serving ice cream with the birthday cake at his party.He has purchased 19 1/2 pints of ice cream. He will serve 3/4 o
soldier1979 [14.2K]
26 and no there will not be any left
8 0
3 years ago
What’s the piremeter of a polygon
Burka [1]

Answer:

the length of all sides added together

6 0
3 years ago
In college​ basketball, a shot made from beyond a designated arc radiating about 20 ft from the basket is worth three points ins
denis-greek [22]

Answer:

a) By the Central Limit Theorem, the distribution would be approximately normal, with mean \mu = 0.45 and standard deviation s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.45*0.55}{100}} = 0.0497

b) 4.02 standard deviations below the mean.

c) Making 25 or less shots has a pvalue of -4.02. Z-scores lower than -2 are considered surprising, so yes, it would be surprising for him to make only 25 of these shots.

Step-by-step explanation:

To solve this question, we are going to 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.

For proportions, we have that the mean is \mu = p and the standard deviation is s = \sqrt{\frac{p(1-p)}{n}}

In this problem, we have that:

p = 0.45, n = 100

a)By the Central Limit Theorem, the distribution would be approximately normal, with mean \mu = 0.45 and standard deviation s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.45*0.55}{100}} = 0.0497

b)This is Z when X = 0.25.

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

By the Central Limit Theorem

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

Z = \frac{0.25 – 0.45}{0.0497}

Z = -4.02

4.02 standard deviations below the mean.

c) Making 25 or less shots has a pvalue of -4.02. Z-scores lower than -2 are considered

surprising, so yes, it would be surprising for him to make only 25 of these shots.

3 0
3 years ago
a laptop's screen is 8 inches long. if the diagonal measures 10 inches, what is the width of the laptop
Ray Of Light [21]
The width of the laptop is 6 inches long.
5 0
3 years ago
Other questions:
  • ming- LI spent $15 at the movies. She then earned $30 babysitting. She spent $12 at the bookstore. She ow has $18 left. How much
    7·1 answer
  • Help me with these fractions with whole numbers
    12·1 answer
  • Find a polynomial with a degree of 3, and the zeros 1,7, &amp; -4 with no other zeros.
    8·1 answer
  • PLEASE HELP I’LL GIVE BRAINLIEST!
    12·1 answer
  • I need which other form can you represent the number 2 1/3
    13·1 answer
  • HELP DUE IN 10 MINS!<br><br> Attached is the Question.
    10·2 answers
  • At PRMS, 25% of the 124 students Mrs. Pasternak teaches buy their lunches in the cafeteria. How many students buy their lunches
    7·1 answer
  • Lee el anexo , posteriormente Escribe 5 preguntas en su cuaderno referente al texto que leiste.
    14·1 answer
  • 7/6 * 16/6 in simplest form​
    9·1 answer
  • Including a 6% sales tax, an inn charges $155.82 per night. Find the inn's nightly cost before tax is added.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!