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
Sergeeva-Olga [200]
3 years ago
7

Please answer it now

Mathematics
1 answer:
GaryK [48]3 years ago
8 0

Answer:

1306.90≅  1307 rounded to the nearest tens

Step-by-step explanation:

r= radius = 13 cm

l is the slant height =19 cm

surface area of the cone= area of the circle + area of the curved of the cone

SA=πrl +πr²

SA=π(13)(19) +169π

SA= 247π +169π= 416π=1306.90≅  1307 rounded to the nearest tens

You might be interested in
Will give brainiest answer. Which pair of ratios does NOT form a proportion?
gayaneshka [121]
C is the answer because the fractions are not proportional.

Answer: C. 9/14, 3/4
5 0
3 years ago
Alliya spent $6.70 on 12 pencils at the store. Her cost included $0.46 sales tax. How much did each pencil cost? Enter your answ
Kay [80]
Im pretty sure the answer is .52 I got this by subtracting the toatl by the sales tax and then dividing that total by how many pencils were bought : 6.70-.42=6.24, 6.24/12=54
7 0
3 years ago
Read 2 more answers
A right triangle has an area of 50 square inches. If the triangle is an isosceles triangle, what are the lengths of the legs of
Fed [463]
<span>If this is an isosceles triangle, then it has two 45 degree angles corresponding to two legs of equal length.  Orient the base of this triangle so that it's horizontal, and represent its length by b.  Let h represent the height of the triangle.  Then the area of this right triangle is 50 square inches = (1/2)(b)(h), or A = (b/2)h = 50 in^2.   

Due to the 45 degree angles, the height of this triangle is equal to half the base, or h = b/2.  Thus, (b/2)h = 50 becomes (b/2)(b/2) = 50, or b^2=200. Thus, b = 10sqrt(2), and h=(1/2)(10 sqrt(2)), or h = 5sqrt(2).

The length of one of the legs is the sqrt of  [5sqrt(2)]^2+[5sqrt(2)]^2, or

sqrt(25(2)+25(2)) = sqrt(100) = 10.



</span>
4 0
3 years ago
An architect is standing 250 feet from the base of a building and would like to know the height of the building. If he measures
GREYUIT [131]

see the figure below to better understand the problem

we have that

\begin{gathered} tan55^o=\frac{h}{250}---->\text{ by TOA} \\  \\ solve\text{ for h} \\ h=250*tan55^o \\ h=357.0\text{ ft} \end{gathered}<h2>The answer is 357.0 feet</h2>

8 0
1 year ago
Write each phrase as an algebraic expression.<br> 16 seconds faster than Aya’s time.
Liula [17]
Aya’s time + 16 seconds
X+16
8 0
3 years ago
Other questions:
  • 312,919,563x500➗999,527
    8·1 answer
  • Which statement best describes the association between
    13·2 answers
  • The ellipse x^2/4 + y^2/16 = 1<br> Has a vertical axis of??<br> 8<br> 16<br> 4<br> 3
    9·1 answer
  • A ​used-boat dealership buys a boat for ​$2800 and then sells it for ​$4000. What is the percent​ increase?
    12·1 answer
  • Factor completely -4x^2-28x-48
    7·1 answer
  • Can someone please help me with this
    13·1 answer
  • Which number represents a square root of 3 (cosine (StartFraction pi Over 2 EndFraction) + I sine (StartFraction pi Over 2 EndFr
    5·1 answer
  • Convert 5pie/3 radians to degrees
    9·1 answer
  • Help a broooo outttt
    8·1 answer
  • Circle O is shown. Line segments B O and O C are radii. Point A is on the circle and is not within angle B O C.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!