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
nlexa [21]
2 years ago
12

The base perimeter of a triangular prism is 36cm and lateral surface area is

Mathematics
1 answer:
Phoenix [80]2 years ago
4 0

(a)

Lateral surface area of prism =720cm²(Given) Perimeter x height = 720

36 x height = 720

∴ Height\: of\: prism = \frac{720}{36} = 20\\(b) Total \:surface\: area\: of\: prism = 2 x \:base\: area\: + L.\: S.\: A\: of \:prism \\ =  \frac{2 \times  \sqrt{3} }{4}  \times(  {12}^{2} ) + 720 \\  = (72 \sqrt{3}  + 720) {cm}^{2} \\  = (72 \times 1.732 + 720) {cm}^{2}  \\  = 844.704 \frac{}{}  {cm}^{2}

You might be interested in
Mary pays $24.00 for 5 pounds of apples. At the same price, how much would she pay
mina [271]
First calculate the price of one pound of apples
24/5
= $4.80
Then multiply it by 6
6 x 4.80
Your price is $28.80
4 0
3 years ago
Maggs invests $10,250 at a rate of 9%, compounded weekly. To the nearest whole dollar, find the value of the investment after 7
Setler79 [48]
Number of weeks in a year: 52
Weeks in 7 years: 52 x 7 = 364 

Final amount = Initial amount x (1 + interest)^(time period)

Final amount = 10,250 x (1.09)³⁶⁴
Final amount = $4.3 x 10¹⁷
6 0
3 years ago
Read 2 more answers
The original price of a pair of shoes at Nike Outlet is 109.99 and there is a mark down of 25% because the shop is having a blac
marissa [1.9K]

Answer:

27.50

Step-by-step explanation:

109.99=100%

10.999=10%

21.998=20%

27.4975=25%

so they are taking £27.4975 off the original price meaning the new price is £82.4925 but, because it is money, you would need to round this to two decimal places leaving the new price as £82.49

3 0
2 years ago
in a fundraiser, Mrs. Smith pledges $1 for each mile walked . if Sam walks 20 miles how much will Mrs. Smith donate? what is yhe
EleoNora [17]
Mrs. Smith donated $20
The constant proportionality is $1 because no matter what, Mrs. smith will donate $1 for each mile. So if Sam were to only walk 1 mile, mrs. smith would donate $1. Or seen as a 1:1 proportion.
5 0
2 years ago
Anyone please help me with last two I'll vote brainliest!! :))
Alja [10]

Answer:

7. y= x + 12   8. y= -1 + 4x

Step-by-step explanation:

for 7 all you need to do is subtract x from both sides to get y= 12- x, and to make it perpendicular you need to make the current slope it’s exact opposite so in this case that’s just changing the “-” symbol to an “+”.

for 8 you do the same first step you did in 7 and subtract 4x from both sides to get -y= 1 - 4x. Next you divide everything by -1 (because it’s the number in front of the Y) and you get Y= -1 + 4x

7 0
3 years ago
Other questions:
  • Solve 4x−5=7+4y for y.
    7·2 answers
  • Which is the best series on netflix ?
    7·2 answers
  • In the 7th grade, 150 of the students are attending the dance. If this is 62.5% of the entire grade, how many 7th graders are th
    7·1 answer
  • Three over four times one over five
    11·2 answers
  • Families USA, a monthly magazine that discusses issues related to health and health costs, surveyed 20 of its subscribers. It fo
    14·1 answer
  • Identify the segments that are parallel, if any, if ∠DCB and ∠CDA are supplementary.
    15·1 answer
  • Brainliest if correct
    5·2 answers
  • Please answer this quick
    5·1 answer
  • 2<br> 8<br> L<br> J<br> 13<br> Solve for LK
    7·1 answer
  • Distributive property.<br><br> 1. -5(y + 1) + 6y<br> 2. 4(z-2)+3z<br> 3. (f-5)(-2)+ 11f
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!