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
beks73 [17]
3 years ago
12

The figures are similar. Give the ratio of the perimeters and the ratio of the areas of the first figure to the second.

Mathematics
1 answer:
pickupchik [31]3 years ago
5 0

Answer: first option.

Step-by-step explanation:

The ratio of the area of the triangles can be calculated as following:

ratio_{(area)}=(\frac{l_1}{l_2})^2

Where l_1 is the lenght of the given side of the smaller triangle and l_2 is the lenght of the given side of the larger triangle.

Therefore:

ratio_{(area)}=(\frac{28}{32})^2=\frac{49}{64}

It can be written as following:

ratio_{(area)}=49:64

The ratio of the perimeter is:

ratio_{(perimeter)}=\frac{l_1}{l_2}

Where l_1 is the lenght of the given side of the smaller triangle and l_2 is the lenght of the given side of the larger triangle.

Therefore:

ratio_{(perimeter)}=\frac{28}{32}=\frac{7}{8}

It can be written as following:

ratio_{(perimeter)}=7:8

You might be interested in
Consider a game in which players roll a number cube to determine the number of points earned. If a player rolls a prime number,
Aleksandr-060686 [28]

Answer:

The expected value of the points earned on a single roll in this game is \dfrac{1}{6} = 0.1667 .

Step-by-step explanation:

We are given that consider a game in which players roll a number cube to determine the number of points earned. If a player rolls a prime number, that many points will be added to the player’s total. Any other roll will be deducted from the player’s total.

Assuming that the numbered cube is a dice with numbers (1, 2, 3, 4, 5, and 6).

Here, the prime numbers are = 1, 2, 3 and 5

Numbers which are not prime = 4 and 6

This means that if the dice got the number 1, 2, 3 or 5, then that many points will be added to the player’s total and if the dice got the number 4 or 6, then that many points will get deducted from the player’s total.

Here, we have to make a probability distribution to find the expected value of the points earned on a single roll in this game.

Note that the probability of getting any of the specific number on the dice is   \dfrac{1}{6} .

      Numbers on the dice (X)                       P(X)

                      +1                                                 \frac{1}{6}

                      +2                                                \frac{1}{6}

                      +3                                                \frac{1}{6}

                      -4                                                 \frac{1}{6}

                      +5                                                \frac{1}{6}

                      -6                                                 \frac{1}{6}

Here (+) sign represent the addition in the player's total and (-) sign represents the deduction in the player's total.

Now, the expected value of X, E(X)  =  \sum X \times P(X)

   =  (+1) \times \frac{1}{6} +(+2) \times \frac{1}{6} +(+3) \times \frac{1}{6} +(-4) \times \frac{1}{6} +(+5) \times \frac{1}{6} +(-6) \times \frac{1}{6}

   =  \frac{1}{6} + \frac{2}{6} + \frac{3}{6} - \frac{4}{6} + \frac{5}{6} - \frac{6}{6}

   =  \frac{1+2+3-4+5-6}{6}

   =  \frac{11-10}{6}= \frac{1}{6}

Hence, the expected value of the points earned on a single roll in this game is  \frac{1}{6} = 0.1667 .

4 0
3 years ago
Please help and thank you
s2008m [1.1K]

Answer:

<em>Answer is</em><em>(</em><em>-1</em><em>,</em><em>-1</em><em>)</em>

Step-by-step explanation:

given \: points \: are \:( 1, - 6) \: and \: ( - 3,4) \\ midpoint \:  =  (\frac{x1 + x2}{2} , \frac{y1 + y2}{2} ) \\  =(  \frac{1 - 3}{2} , \frac{ - 6 + 4}{2} ) \\  (\frac{ - 2}{2} , \frac{ - 2}{2} ) \\ midpoint \:  =   ( - 1, - 1)

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>HAVE A NICE DAY</em><em>!</em>

<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>. </em><em> </em><em> </em><em> </em><em> </em>

3 0
3 years ago
you're 495 miles from home and you are driving toward home at an average of 45mph. How long will it take to drive home if you ma
LenaWriter [7]

11 hours because I did the math

7 0
3 years ago
What is the value of y in the equation 6 + y = −3?
oee [108]
The value of y is -9
6 0
3 years ago
A bag of potato chips is packaged at sea level (1.00 atm) and has
serg [7]

Answer:

406 ml

Step-by-step explanation:

P1V1 = P2V2

(1) (.315) = (.775)(V2)

V2 = .406

3 0
2 years ago
Other questions:
  • What is the domain of the function ​f(x) = 2x^2 - 3​?
    10·1 answer
  • Can sumone help please!
    14·1 answer
  • I need help with this question plz
    8·2 answers
  • Need Help!!!!
    12·1 answer
  • One layer of earth's atmosphere is called stratosphere
    12·1 answer
  • Find two integers whose sum is -23 and product is 132
    15·1 answer
  • What is the simplified value of the expression below? -2.6+5.8
    14·2 answers
  • In a certain year, about 11/5000 of a country’s population were female nursing home residents and about 7/5000 of a country’s po
    7·1 answer
  • Does the budgeted amount cover the actual amount for expenses, savings, and emergencies?
    11·1 answer
  • What is the standard form of (5+i)(6-5i)/2i(-3+7i)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!