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
nignag [31]
2 years ago
5

Do the ratios 21:28 and 6:8 form a proportion?

Mathematics
1 answer:
Nezavi [6.7K]2 years ago
7 0

Answer:

Yes

Step-by-step explanation:

they are both equal to 3:4

21:28 can be reduced by 7

21/7=3

28/7=4

and 6:8 can be reduced by 2

6/2=3

8/2=4

You might be interested in
Help with physic I need ​
BARSIC [14]

Answer:

ff

Step-by-step explanation:

fff

6 0
2 years ago
How can you find the area of an irregular polygon using area formulas?
algol [13]
Divide the polygon into separate shapes.  Like a rectangle and then a triangle.  
find the areas of those shapes and then add them together.

6 0
3 years ago
Which unit price is the highest?
Leviafan [203]

Answer:peppers

Step-by-step explanation:

4 0
2 years ago
The function H(t) = −16t2 + 75t + 25 shows the height H(t), in feet, of a baseball after t seconds. Part A: After how many secon
nlexa [21]

Step-by-step explanation:

Given that,

The function that shows the height of a baseball after t seconds is given by :

H(t)=-16t^2+75t+25 ....(1)

Part (A).

When the baseball hits the ground,

H(t) = 0

So,

-16t^2+75t+25=0\\\\t=5\ s\ and\ t=-0.31\ s

After 5 seconds the baseball will hit the ground.

Pat (B)

For maximum height, put dH/dt = 0

So,

\dfrac{d}{dt}(-16t^2+75t+25)=0\\\\-32t+75=0\\\\t=2.34\ s

Put t = 2.34 s in equation (1).

H(t)=-16(2.34)^2+75(2.34)+25\\\\H(t)=112.89\ m

Hence, this is the required solution.

8 0
2 years ago
What is a 90-degree rotation on a graph.
Oksanka [162]
Rotation of a point through 90-degree is about he origin in clockwise direction when point M(h,k) is rotated about the origin O through 90-degree in clockwise direction
4 0
3 years ago
Other questions:
  • Zach family brings a large sandwich they cut into 8 equal parts 4 people each take 1 piece of the sandwich write a fraction to s
    10·1 answer
  • An equation ___has one solution.<br> alwa<br> sometimes<br> never
    7·1 answer
  • A piece of art paper is 1 1/2 inches wide and 4 inches long.What is the area of the paper
    12·1 answer
  • How many groups of sixty are in two hundred forty-four
    8·2 answers
  • Find the perimeter of the triangle with coordinates A(5,2), B(5,4), and C(1,1). Round to the nearest tenth.
    8·1 answer
  • An unknown number is multiplied by 3 and divided by -4. The result is -6.
    12·1 answer
  • The length of a rectangle is 3 yd longer than its width.
    7·1 answer
  • Giovanni can read 250 words per minute. If there are approximately 400 words on a page, about how many
    11·1 answer
  • 7a+3b=27 <br> 6a+3b=24<br><br> Solve in simultaneous<br><br> A=<br> B=
    5·2 answers
  • Find the value of x and y
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!