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
otez555 [7]
3 years ago
8

An ellipse has a major semi-axis of 20 cm and a minor semi-axis of 14 cm. find the area.

Mathematics
1 answer:
avanturin [10]3 years ago
8 0
In order to answer the question, you need to know the formula area of an ellipse.

Area = pi * a * b
a = minor axis
b = major semi-axis

Area = 3.14 * 20 * 14
Area = 879.20 cm^2
You might be interested in
Jordon missed 49 on his multiple choice math final and earned a grade of 65%. How many total questions were on the final exam?
harkovskaia [24]

Answer:

The exam was out of 75.

Step-by-step explanation:

You know that he earned 65% so more than half his answers were correct.

Then, you would guess and check try 49/60, 49/70, and go up by 10s or 5s. You will then realize that 49÷75 equals 65.333. This rounds up to 65.

8 0
2 years ago
At a college, 4/5 of the students take an English class. Of these students, 5/6 Composition. Which fraction of the students at t
Alchen [17]
If I’m doing it correctly it’s 2/3 but I haven’t done it in a while
3 0
3 years ago
Ling worked three more hours on Tuesday than she did on Monday. On Wednesday, she worked one hour more than twice the number of
Nina [5.8K]

Let x be the number of hours ling work on monday.

We know that she worked three more hours on tuesday that in monday, this can be express as :

 x+3

We also know that in wednesday she worked on more hour than twice the number on mondays, this can be expressed as:

2x+1

The total number of hours she worked this three days in two more than five the number of hours she worked on monday, this can be express as :

5x+2\\

Now , once we have all the expressions we add the expressions of the days and equate them to the total

x+(x+3)+(2x+1)=5x+2

Now we solve the equation

x+(x+3)+(2x+1)=5x+2\\x+x+3+2x+1=5x+2\\4x+4=5x+2\\5x-4x=4-2\\x=2

Therefore , she worked 2 hours on monday.

PLEASE MARK ME AS BRAINLIEST

7 0
3 years ago
Read 2 more answers
What is x+x+x+x+x+x+x+x+x+x+b+b+b+b+3=
xz_007 [3.2K]

Answer:

10x+4b+3

Step-by-step explanation:

x+x+x+x+x+x+x+x+x+x+b+b+b+b+3

There are 10 x

4 b

and one number

10x+4b+3

8 0
2 years ago
Which algebraic of an transformation on a coordinate grid does not preserve congruence
Karo-lina-s [1.5K]

Answer:

rotation

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • find the volume of the solid whose base is the region bounded by the x-axis, the curves y=5x, y=3x^2, x=0 and x=1.66667 and whic
    15·1 answer
  • How many times does 12 go into 144
    13·2 answers
  • Write an algebraic expression that is the quotient of a variable term and a constant.
    11·1 answer
  • The local newspaper has letters to the editor from 70 people. If this number represents 2​% of all of the​ newspaper's readers,
    12·1 answer
  • Please help me with this question I took a picture of it
    9·1 answer
  • Find the length of AB pls and thank you
    14·1 answer
  • Please help! Will give brainliest, pls no fake answers or links. :)
    6·2 answers
  • What is the value of this expression?<br><br><br>6.4−2.4÷0.1
    10·2 answers
  • an item is regularly priced at $45 it is on sale for 20% off the regular price how much in dollars is discounted from the regula
    13·1 answer
  • I need help on solving these equations linear. Please helpppp
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!