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
Yuliya22 [10]
3 years ago
7

Please help me in this it's similar figures assessment​

Mathematics
1 answer:
OLEGan [10]3 years ago
3 0

Answer:

20

Step-by-step explanation:

the triangles are similar so the sides are in proportion

(x/10)=(12/6)

6x=10*12

x=10*12/6=20

You might be interested in
a plastering contractor charges $18 per square yard( that is $2 per square foot). what is the cost of plastering 100 feet of wal
Tomtit [17]
Basically, this problem is going to require you to solve for the area and multiply it with the given cost unit.

Area = Length*Height
Area = 100 ft * 8 ft = 800 ft²

Total Cost = (Unit Cost)(Area)
Total Cost = ($2/ft²)(800 ft²)
<em>Total Cost = $1,600</em>
4 0
3 years ago
The weight of a package of mints is believed to be normally distributed with mean 21.37 grams and standard deviation 0.4, i.e. X
nasty-shy [4]

Answer:

P(21

And using a calculator, excel or the normal standard table we have that:

P(-1.85

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the weigths of a population, and for this case we know the distribution for X is given by:

X \sim N(21.37,0.4)  

Where \mu=21.37 and \sigma=0.4

Since the distribution for X is normal then we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

We can find the probability required with the following z score formula:

z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}&#10;

And replacing we got:

P(21

And using a calculator, excel or the normal standard table we have that:

P(-1.85

6 0
3 years ago
The perimeter of a triangular window is 141 inches. The ratio of the side lengths of the window is 11:18:18. What are the side l
vaieri [72.5K]

The perimeter of a triangular window is the sum of its side lengths

The side lengths of the window are 33 inches, and 54 inches

<h3>How to determine the side lengths?</h3>

The ratio is given as:

Ratio = 11: 18 : 18

Rewrite as:

Ratio = 11x: 18x : 18x

Express as sum

Sum = 11x + 18x + 18x

Sum = 47x

The perimeter is 141 inches.

So, we have:

47x = 141

Divide both sides by 47

x = 3

Recall that:

Ratio = 11x: 18x : 18x

So, we have:

Ratio = 11*3: 18*3 : 18* 3

Ratio = 33: 54 : 54

Hence, the side lengths of the window are 33 inches, and 54 inches

Read more about perimeter at:

brainly.com/question/17297081

3 0
2 years ago
Suppose your friends parents invest $10,000 in an account paying 7% compounded annually. what will the balance be after 8 years?
ioda

Answer:

17,181.86

Step-by-step explanation:

Just keep multiplying each answer by 1.07 till you reach 8 years.

7 0
3 years ago
Read 2 more answers
What is the surface area of a sphere with a diameter of 6 ft
Aleksandr-060686 [28]

Answer: 113.1ft²

Step-by-step explanation:

The answer is 113.1ft²

7 0
3 years ago
Other questions:
  • A recipe calls for 3/4 cups of flour. If you need to split the recipe in half, how much flour would be needed?
    5·2 answers
  • Evaluate 6−b3a 6-b3a<br><br> a.)-3/10<br> b.)2<br> c.)1/10<br> d.)1/2
    13·1 answer
  • Choose the correct elevation for the peak shown.
    11·2 answers
  • Find the missing side length
    5·1 answer
  • What is the best measure of center for the data represented 2 points<br> by the histogram below?
    6·1 answer
  • Evaluate the algebraic expression 5 + 9(x-8)2 for x = 9.<br> When x = 9,5+9(x-8)2 =
    15·1 answer
  • Which answers are equal to the expression below? Check all that apply
    13·1 answer
  • One of these graphs is of a cubic function which one is it ?
    13·2 answers
  • Please help
    7·2 answers
  • PLEASE HELP ME!!! AWNSER HONESTLY!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!