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
TEA [102]
3 years ago
9

A team of engineers must design a fuel tank in the shape of a cone (excluding the base) is given by the formula S=Pi x square ro

ot of (r^2 + h^2). Find the radius of a cone with a height of 21 meters and a surface area of 155 meters squared. Round your answer to the nearest tenth if necessary.
Mathematics
2 answers:
fiasKO [112]3 years ago
5 0
To answer the given question, substitute the values given to the equation,
                                     S = π x sqrt(r² + h²)
 
                                   155 m = π x sqrt (r² + (21 m)²))
 
                                        r = 44.65 m
Therefore, the radius of the cone is approximately 44.65 m.

Rina8888 [55]3 years ago
5 0

Answer:

The radius of cone is 44.6 meters.

Step-by-step explanation:

Consider the provided information.

The shape of a cone (excluding the base) is given by the formula S=Pi x square root of (r^2 + h^2).

This can be written as:

S=\pi \times \sqrt{r^2+h^2}

We need to find the radius of a cone with a height of 21 meters and a surface area of 155 meters squared.

Substitute the respective values in the above formula.

155=\pi \times \sqrt{r^2+21^2}

\frac{155}{\pi}=\sqrt{r^2+21^2}

49.32=\sqrt{r^2+441}

2432=r^2+441

1991=r^2

r=44.6\ approximately

Hence, the radius of cone is 44.6 meters.

You might be interested in
A rabbit can run short distances at a rate of 35 miles per hour . A fox can run short distances at a rate of 21 miles per half h
Veronika [31]
The rabbit is faster by 14 mph.
35-21=14

Hope my answer helped you :)
4 0
3 years ago
What is the written form of the decimal number .954? A. Nine and fifty-four thousandths B. Nine hundred fifty four hundredths C.
Sladkaya [172]
The answer is B because its 9 hundred and thousandths is the smallest place
7 0
3 years ago
Read 2 more answers
17 points!!<br> Need anyone FAST! Please
guapka [62]

Answer:

80%

Step-by-step explanation:

((y2 - y1) / y1)*100 = your percentage change

(where y1=start value and y2=end value)

((36 - 20) / 20) * 100 = 80 %

3 0
3 years ago
Read 2 more answers
`If I measure from the very top point of one wave to the same top point on the next wave, what have I measured?
morpeh [17]
I believe it’s wavelength!
7 0
3 years ago
Find the total number of diagonals for a polygon of 10 sides.
Ugo [173]
Diagonals = n(n-3)/n where n is the number of sides

if a polygon have 10 sides
= 10(10-3)/10
= 7

thus, the polygon have 7 diagonals.
7 0
3 years ago
Other questions:
  • 2 Points
    11·1 answer
  • If f(x) = 6x - 5 and (x) = -x + 1 , what is the value of f(g(-3)).
    12·1 answer
  • Do you multiply from left to right, or from right to left?
    15·2 answers
  • 6•x=0 6=x•0 what’s X
    8·1 answer
  • Plz show work and help me
    14·2 answers
  • B / 9 - 9 = 14<br> what is the value of b?
    15·1 answer
  • Aight come on i need the answer to this question
    15·1 answer
  • The scale on a map is
    11·1 answer
  • What is the surface area of the rectangular prism?
    13·1 answer
  • Write an equation for the description.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!