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
Bumek [7]
2 years ago
12

Math answer plz need help with this plz answer

Mathematics
1 answer:
Neporo4naja [7]2 years ago
6 0

Answer:

176.625 sq.ft, 4.8 sq.ft

Step-by-step explanation:

Area of circle=πr^2 or πd^2/4
11. Given,
d=15 ft
Now,
Area=πd^2/4
3.14*15^2/4
176.625 ft^2
Therefore, the area approximation is 176.6 sq.ft
12.
Given,
d=3.5 ft
Now,
Area= πd^2/8
3.14*3.5^2/8
4.8 sq.ft
I got the answer by dividing the area of circle by 2 as semicircle is half of circle.

You might be interested in
If the volume of a cube is increased by a factor of 10 (so that the new volume is 10 times the size of the original volume), by
Alexeev081 [22]

Answer:

surface area of cube 10^{\frac{2}{3} } time

Step-by-step explanation:

given data

new volume =  10 time original volume

to find out

what factor surface area change

solution

we consider here side of cube is a

and volume is V

we consider here a is 2

then volume will be v1 = a³ = 2³ = 8

and surface area = 6a²    = 6(2)² = 24    ..........1

so if volume increase 10 time

than

V = 10 × v1

a³ = 10 × 8

a³= 80

a = 2 × ∛10

and

surface area increase here

surface area = 6a²

surface area = 6( 2 × ∛10 )²

surface area = 24 × 10^{\frac{2}{3} }    ............2

so from equation 1 and 2

surface area / surface area = 24 × 10^{\frac{2}{3} }  / 24

surface area = 10^{\frac{2}{3} }

so here surface area of cube will be 10^{\frac{2}{3} } time

5 0
3 years ago
I NEED HELP PLEASE FOR FINALS <br> What is f(4) for the function f(x) = 3x + 5?
Igoryamba

Answer: F(4) = 17

Step-by-step explanation:

Just plug in 4 for X.

F(4)= 3(4)+5

F(4)=12+5

F(4)=17

7 0
3 years ago
What is the slope of a line that passes through (0,4) (6,13)
Svetach [21]

Answer:  m=3/2

.

Step-by-step explanation:Use the slope formula to find the slope  

m

.

4 0
3 years ago
Find the unit prices to the nearest tenth of one cent 12 oz for $2.10
vlabodo [156]

Answer:

Concept: Unit Price & Algebraic Representation

  1. You have 12 oz
  2. You have a total price of 2.10
  3. Hence you divide 2.10/12
  4. Your result to the nearest tenth is 0.2
  5. Rate positively and give brainlist
3 0
2 years ago
What’s the answer? I’m very confused
Snowcat [4.5K]
F(x) = 29x +38. F(x) is a fancy way of saying y= and you must know the basic formula y=mx+b
6 0
3 years ago
Other questions:
  • Help please! ASAP!!!!
    7·1 answer
  • (THE QUESTION IS AT THE PHOTO)
    12·2 answers
  • Solve by substitution: <br> -5x + y = -2<br> -3x + 6y = -12<br><br> please explain
    6·1 answer
  • On each of n plates there are k apples and m pears. What is the total number of fruit are there on these plates?
    8·1 answer
  • Y=3/4x<br> 5/2x+2y=5<br> Show work
    5·1 answer
  • The sum of two numbers is 46 and the difference is 2
    14·2 answers
  • There are 96 problems on a math test. 40% is Algebra problems and the rest are Arithmetic problems. How many Arithmetic problems
    10·2 answers
  • Find values of x, HJ, and JK.​
    12·1 answer
  • Drawing a red marble from a bag, then replacing the red marble and drawing out a blue marble. This event is Independent.
    9·2 answers
  • Jason has exactly four wooden toy blocks with digits on them. Two of the blocks have the digit 0, one of the blocks has the digi
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!