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
igor_vitrenko [27]
3 years ago
9

The area of a

Mathematics
1 answer:
mr_godi [17]3 years ago
6 0
The answers X2 plus 4X -21This is because it’s possible
You might be interested in
A concert hall has seven sections. Each section has twenty-three rows. Each row has fourteen seats. If the theater sells out for
gayaneshka [121]
If the theater sells out, 2254 people would have attended. With each ticket being 20 dollars, $45,080 would have been collected at the box office
7 0
3 years ago
Merit works in a florist shop and makes flower arrangements
Vikentia [17]
So what is the question
5 0
3 years ago
A FEW MATH QUESTIONS ! PLEASE EXPLAIN ANSWERS ! (:
7nadin3 [17]

answers

1) 70

2) 3,840

3) 24

4) 72


<u>Explanation</u>

Q1

The surface area of a cone is given by;

S.A = 2Πrl + Πr²

Where r is the radius of the base and l is the lateral height.

Πr² = area of the base = 20 in²

2Πrl = Area of the lateral surface

         = 2.5 × 20

          = 50

Area of the cone = 50 + 20

                            = 70 in²

Q2

The sides of the Pythagorean triangle with legs of 12 and 16.

The 3rd side will be;

c = √(12² + 16²)

  = √400 = 20

Volume = 12 × 16 × 20

              = 3,840

Q3

The volume of a cone is given by;

volume = 1/3 Π r² h

This shows that the volume of a cone is a third the volume of the cylinder.

∴ Volume of the cylinder = 12 × 3

                                            = 24 ft³

Q4

The volume of any regular figure is;

Volume = base area × height

When the dimensions area usually 3. Let these dimensions be x, y and z.

∴ volume  = x × y × z = 9

  Doubling the dimensions;

Volume = 2x × 2y × 2z = 2 × 2 × 2 × 9

             = 8 × xyz = 8 × 9

             = 72 ft²



3 0
4 years ago
Read 2 more answers
I need 6x-8=5x+4 solved
Julli [10]

Answer:

Step-by-step explanation:

Here you go mate

Step 1

6x-8=5x+4  Equation/Question

Step 2

6x-8=5x+4  simplify

6x-8=5x+4

Step 3

6x-8=5x+4  Subtract

x-8=4

Step 4

x-8=4  Add 8

answer

x=12

Hope this helps

8 0
3 years ago
Read 2 more answers
when adding two rational numbers tell what the sign of the sum will be if one rational number is positive and one is negative
Mekhanik [1.2K]

Answer:

True

When you add two negative numbers the sum is always negative ex.

When you add two numbers with different signs get the difference and get the sign by the larger absolute value ex.

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • Eight hundred fourteen million, forty thousand, fifty in word form
    12·2 answers
  • F(x) = 4x - 1
    12·2 answers
  • John's age is 2 years more than twice as old as Mary. The sum of their ages is 32. How old is each? (pls include equation and so
    10·2 answers
  • I will give you a Brainly crown if it is right. Will you help me
    6·1 answer
  • Awnser me pkeaeeeeeeeeee
    9·1 answer
  • Help help help please
    15·1 answer
  • Whats the point on the graph​
    8·2 answers
  • A parking lot in the shape of a trapezoid has an area of 126 square meters. The length of one base is 8 meters, and the length o
    6·1 answer
  • Find the sum which becomes 19,320 on increasing by 15% (Percentage)
    6·1 answer
  • point) Find the measure of each interior angle. K (2x + 15) (3x - 20) (x + 15) N b MZI= 120.8. MLK= 1387, M2M= 52.9, MAN=679 MZJ
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!