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
Degger [83]
3 years ago
9

Please please Help! 8 points!

Mathematics
1 answer:
Step2247 [10]3 years ago
5 0

Answer:

  1. area ≈ 59.441 in²
  2. lateral area ≈ 352.671 in²
  3. surface area ≈  471.553 in²

Step-by-step explanation:

1. The area of the regular polygon base of the prism can be found from the formula ...

  A = (nr²/2)sin(360°/n) . . . . where r is the radius and n is the number of sides

Filling in the numbers and doing the arithmetic gives ...

  A = (5·5²/2)sin(72°) ≈ 59.441 . . . square inches

__

2. The lateral area is the product of the height and the perimeter. The perimeter of the regular polygon can be found from ...

  P = 2nr·sin(180°/n) = 50sin(36°) ≈ 29.389 . . . inches

Then the lateral area is ...

  LA = Ph = (29.389 in)(12 in) = 352.671 in²

__

3. The total area is the area of the two bases together with the lateral area:

  S = 2·(base area) + (lateral area) = 2(59.441 in²) + 352.671 in²

  S = 471.553 in²

You might be interested in
Find the missing coefficient.<br><br> -<br> y2 − [-5y − y(-7y − 9)] − [-y (15y + 4)] = 0
maria [59]
There is only one solution in the given equation -y2 − [-5y − y(-7y − 9)] − [-y (15y + 4)] = 0. In solving this problem, apply first PEMDAS (parenthesis, exponents,multiplication, division, addition, subtraction). Then equation will transform into -y2+5y-7y2-9y+15y2+4y=0. Combine terms with same power and achieve 7y2=0. Divide both sides with 7 and perform square root of zero. Since the root is zero, we have one solution of the given equation which is y=0.
5 0
3 years ago
Read 2 more answers
The local home improvement store wants to increase their inventory. Last year 40 lawn mowers cost them $4,776.
hoa [83]
40 mowers = $4,776

Multiply the above equation by 3
120 mowers = $14,328
7 0
3 years ago
Read 2 more answers
Which number is a solution of a² +4= 6a – 1?<br> 07<br> 6<br> 7<br> 8
LuckyWell [14K]

Answer:

a=1 or a=5

Step-by-step explanation:

a^{2}+4=6a−1

Step 1: Subtract 6a-1 from both sides.

a^{2}+4−(6a−1)=6a−1−(6a−1)

a^{2}−6a+5=0

Step 2: Factor left side of equation.

(a−1)(a−5)=0

Step 3: Set factors equal to 0.

a−1=0 or a−5=0

a=1 or a=5

(is it helpful rate me according to that

Thank You:-)

6 0
3 years ago
Bethany has a circular table that she needs to carry inside her house to paint. Her front door is a rectangle and has a width of
RoseWind [281]
I thought I knew this but nvm
4 0
3 years ago
Read 2 more answers
What is the product when you multiply (x2 + 2x - 5) and (x + 3) please answer asap
frozen [14]
Is that supposed to be x squared, or x times 2 in the beginning of the first one?
4 0
2 years ago
Other questions:
  • you and your friend share a package of candies. You eat twice as many candies as your friend. If there were 36 candies in the ba
    5·1 answer
  • Sandi tracks her calories burned during water aerobics class. The number of calories she burns is expressed by the function c(t)
    5·1 answer
  • (3x^2y)(7x^2y)(-2x^2y)
    12·2 answers
  • What is the estimated current value of the team (if sold now) for owners of the Mets?
    5·1 answer
  • Find the area of the shaded region. explain your answer.​
    11·2 answers
  • Identify which type of sampling is used. A rescarch team wants to study the demographics of 9) college students in the U.S. usin
    5·1 answer
  • If a is the average (arithmetic mean) of 6m and 10, b is the average of 4m and 4, and c is the average of 14m and 16, what is th
    9·1 answer
  • Solve similar triangles advanced part 1​
    10·1 answer
  • Equation 5 + 2w = y + 5. What is the value of w
    13·1 answer
  • HALLPPP its worth 50 points
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!