ranatashia
10.09.2020 •
Mathematics
For g(x)=x^2-2, determine g(x+2)
Solved
Show answers
More tips
- H Health and Medicine How to Improve Your Posture?...
- A Animals and plants How to Properly Care for a Pet Decorative Rabbit at Home?...
- C Computers and Internet How to Check the Speed of My Internet?...
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- W Work and Career How to Write a Resume That Catches the Employer s Attention?...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
Answers on questions: Mathematics
- M Mathematics Why does it matter if the exponent is in the parentheses?...
- M Mathematics What are the intercepts of the line 4x+3y=24?...
- M Mathematics Write the following statement as a conditional statement. a kite is a figure with four sides. if a figure has four sides, then it is a kites. if a figure is a kite, then...
- M Mathematics Awater tank is in the shape of a cone.its diameter is 50 meter and slantedge is also 50 meter.how much water it can store in it ? it releases water to a gated apartment...
- M Mathematics Baruka has gallon of milk left in the 1/2 fridge. how many 5/64 gallon (10-ounce) servings of milk does she have left? show your work...
- M Mathematics What 3 numbers that you can x to get 120...
- M Mathematics Can anyone me with problems 1 to 7 i have to get it done...
- M Mathematics Select the pair of slopes that are the slopes of perpendicular lines. 3 and 1/3 7/8 and -7/8 1/4 and 1/4 -2/3 and 3/2...
- M Mathematics Amilling company wants to mix alfalfa, which contains 20% protein and wheat mids, which contains 15% protein to make cattle feed. the milling company wants to make 1000...
- M Mathematics One die is rolled 3 times, what is the chance of getting all 4 s?...
Ответ:
Proportion says that two ratios (or fractions) are equal.
Example: you want to draw the dog's head ... how long should it be?
proportion dog
Let us write the proportion with the help of the 10/20 ratio from above:
?42 = 1020
Now we solve it using a special method:
?/42 : 10/20
Multiply across the known corners,
then divide by the third number
And we get this:
? = (42 × 10) / 20
= 420 / 20
= 21
So you should draw the head 21 long.
Source: https://www.mathsisfun.com/algebra/proportions.html
Now, back to your question
20/5
a. 100/25
100 x 5 = 500
25 x 20 = 500
Both matches, so 100/25 is proportional to 20/5
b. 10/2
10 x 5 = 50
2 x 20 = 40
50 is not equal to 40, so 10/2 is not proportional to 20/5
c. 60/15
60 x 5 = 300
15 x 20 = 300
Both matches, so 60/ 15 is proportional to 20/5
d. 40/2
40 x 5 = 200
2 x 20 = 40
40 is not equal to 200, so 40/2 is not proportional to 20/5
e. 4/2
4 x 5 = 20
2 x 20 = 40
20 is not equal to 40, so 4/2 is not proportional to 20/ 5
In conclusion, 100/25 and 60/15 are proportional to 20/5.
Hope this helped! Good luck!