Find the total surface area of this cone.
Leave your answer in terms of .
15 cm
78 cm
SA = [ ? 17 cm?
Answers
Answer:
SA = 200π cm²
Step-by-step explanation:
The slant height l is the hypotenuse of the right triangle inside the cone
The triangle is an 8- 15- 17 ( Pythagorean triple ) with l = 17
Then
SA = πrl + πr²
=(π × 8 × 17) + (π × 8²)
= 136π + 64π
= 200π cm²
Answer:
in the right angle triangle,
p=15cm
b=8cm
[tex]h = \sqrt{15 {}^{2} + 8 {}^{2} } \\ = \sqrt{125 + 64} \\ = \sqrt{289} \\ = 17cm \\ sa = \pi \: rl + b \\ = \pi \: 8 \times 17 + \pi \: r {}^{2} \\ = 136\pi + 64\pi \\ = 200\pi[/tex]
Related Questions
select the expression that is equivalent to (x+5)^2-(x-3)(x+5)
Answers
Answer:
I love algebra anyways
the ans is in the picture with the steps
(hope it helps can i plz have brainlist :D hehe)
Step-by-step explanation:
Mr. Wilson's new picnic basket is shaped like a cube. Each side is 11 inches long. What is the volume of the picnic basket?
Answers
Answer:
1331 in^3
Step-by-step explanation:
Well a cube is all identical So followiung the volume for a cube formula
s^3 or in this case 11^3, its 1331.
Find the slope of the line that passes through the pair of points (-6,2),(5,-1)
Answers
Answer:
y = -3/11x + 4/11
Step-by-step explanation:
y2 - y1/ x2 - x1
-1 - 2/ 5 - (-6)
-3 / 11
y = -3/11x + b
-1 = -3/11(5) + b
-1 = -15/11 + b
4/11 = b
LIN
EAR
WEAK
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12
11
10
9
8
7
6
STR
ONO
NON
LIN
EAR
RELATIONSHIP
POS
TIVE
NEOA
TIVE
12 13 14 15 16 17 18 19 20
Answers
Q10.
ABC is a right-angled triangle.
А
11 cm
B
7 cm
C
(a) Work out the size of angle ABC.
Give your answer correct to 1 decimal place.
Answers
Answer:
[tex]B = 50.5^\circ[/tex]
Step-by-step explanation:
Given
[tex]AB = 11[/tex]
[tex]BC = 7[/tex]
See attachment
Required
Determine [tex]\angle ABC[/tex]
[tex]\angle ABC[/tex] implies that we calculate the angle at B.
Given that:
[tex]AB = 11[/tex] --- Hypotenuse
[tex]BC = 7[/tex] --- Adjacent of B
We apply cosine formula
[tex]\cos(B) = \frac{Adjacent}{Hypotenuse}[/tex]
[tex]\cos(B) = \frac{BC}{AB}[/tex]
[tex]\cos(B) = \frac{7}{11}[/tex]
[tex]\cos(B) = 0.6364[/tex]
Take arccos of both sides
[tex]B = cos^{-1}(0.6364)[/tex]
[tex]B = 50.5^\circ[/tex]
PLEASE HELP!!
solve
2x + 3y = 12
( 6x - y = 4 )
A. x = - 1 1/2, y = -13
B. x = 1 1/5, y = 3 1/5
C. x + 1 1/3, y = 4
D. x = 11, y = -3 1/3
Answers
Answer:
I am not sure but
Step-by-step explanation:
try to use to website https://www.symbolab.com/solver/pre-algebra-calculator
you can chose what your learning and it gives you the right answer. make sure you put the numbers in correctly. if you don't it will mess every thing up for that problem. That one reason I have a B in math cuz i use that site for my math. and it shows you how to do it with steps
please give me a heart if the site really helps you guys :)
Which two consecutive integers does -√138 lie between?
A:11 and 12
B:12 and 13
C:-11 and -12
D:-12 and -13
Answers
Answer:
C:-11 and -12
[tex] - \sqrt{138} \\ = - 11.747 \\ - 11 < x < - 12[/tex]
please help lol !!!!
Answers
Answer:
63 degrees
Step-by-step explanation:
Since this is an isosceles triangle, the two bottom angles must be equal, while the top angle (in the way this specific triangle is oriented) must be different. Therefore, angle CDB is 63 degrees.
Answer:
∠CDB = 63°
Step-by-step explanation:
∠CBD and ∠CDB opposite side lengths are congruent (indicated by the little markings)
Because their opposite sides are congruent they are too congruent
So ∠CBD = ∠CDB
because ∠CBD = 63° ∠CDB also equal 63°
Andy constructed a triangle. Angle 1 and 2 are the same size and angle 3 has a measurement of 100 degrees. What is the measurement of angle 1 and angle 2?
a , 30
b 40
c 60
d 90
Answers
Answer:
Angle 1: 40
Angle 2: 40
Step-by-step explanation:
A triangle's angles will ALWAYS add up to 180 degrees total, therefore you can subtract 100 from 180 to find what the measure of A and B are combined.
180 - 100 = 80
So now we know Angles A and B add to 80 degrees, but individually, each is half of that, so both are 40 degrees.
If a man weighs 198 pounds on Earth, his mass on Earth is 90 kilograms. Please answer A&B. A What is this man's weight on the Moon? B What is the mass on the moon? Explain.
Answers
What's the distance between (2,-2) and (-5,-4)
Answers
Answer:
[tex]\sqrt{53\\}[/tex]
Step-by-step explanation:
Use the distance equation ([tex]\sqrt{(x_{2} - x_{1})^2 + (y_{2} - y_{1})^2} = D[/tex]and plug in the values for the distance D
√((-5-2)^2 + (-4 - (-2))^2) = √53
There are 312 fish at the aquarium in 3 different fish tanks. Each tank has the same number of fish. How many fish are in each tank? Write an equation to find the unknown. Then find the unknown.
Answers
Answer:
[tex]312 \div 3 = x \\ x = \frac{312}{3} \\ x = \frac{104}{1} \\ x = 104 fish \: in \: each \: tank[/tex]
1/3 x 4/7? first person to answer gets brainliest!!
Answers
Answer:
4/21
Step-by-step explanation:
Liliana correctly answered 92% of the questions on a geography quiz. Lu answered 47 of 50 questions correctly. Who earned the higher score? Explain.
Answers
Answer:
Lu
Step-by-step explanation:
.....................m
evaluate -1/3 - (-1/6)
explain your answer
Answers
because (-1/6) is a negative expression separated by parenthesis, you use addition instead of subtraction and make it positive.
-1/3+1/6= -1/6
PLSSS HELP IMMEDIATELY!!! i’ll give brainiest if u don’t leave a link and give the correct answer
Answers
Answer:
6
Step-by-step explanation:
The formula to find the area of a triangle is length times height (12) and divide by 2.
A sphere and a right cylinder have the same radius and volume. The cylinder has a height of 6 centimeters. Find the radius.
cm
Answers
Answer:
I think 4.5 cm.
Step-by-step explanation:
Hope that may be right.
Does the point (0,0) satisfy the equation y = 9x?
yes
no
Answers
Find the product. Simplify your answer.
(2u–4)(u2+2u–1)
Answers
.......................................................................................................................................................................
Answers
Answer:
its 65. bcuz you add it all together
Step-by-step explanation:
Find the solution to the system of equations.
x + 3y = 4
2x + 5y = 12
A. (3.8)
B. (-8,4)
C. (16,-4)
D. (1.2)
E. (-1,-2)
Answers
Answer:
C (16,-4)
Step-by-step explanation:
16+3*-4=4
16+(-12)=4
16-12=4
4=4
2*16+5*-4=12
32+(-20)=12
32-20=12
12=12
Which equation has the solution x=6
A. 5x + 7 = 33
B. 5x - 5 = 25
C. 5x + 6 = -36
D. 3x - 9 = 33
you will be marked as BRAINLIEST:)
Answers
Answer:
B. x=6
move all terms to the left that don't contain x to the right side and solve.
What is the total surface area of the square pyramid?
Answers
Answer:
add them all together you will get 240m I think
Step-by-step explanation:
Jimmy won 82 super bouncy balls playing basketball at the county fair. At school he gave three to every student in his math class. He only has 4 remaining. How many students are in his class? Your answer
PLS HELPPP
Answers
Answer:
27
Step-by-step explanation:
so what you need to do is divide 82 and 3 and you get 27.33333333333333 and we know that you can't have part students so you round and that leaves you with 27 people.
Answer:
27
Step-by-step explanation:
4. $5,000 is deposited into an account with an annual interest
rate of 3% compounded continuously. How much will be in the
account after 6 years? Round to the nearest cent.
Answers
Answer:
I wanna say $5,970.26
Step-by-step explanation:
thank you for answering this question :)
Answers
what dose equal 8x3 it equals 24
Answers
Answer:
true
Step-by-step explanation:
3+3+3+3+3+3+3+3=24.
Mark me brainliest please ._.
Answer:
did u just answer ur own question
Step-by-step explanation:
Write b increased by .17 as an expression in the box.
Answers
Answer:
b+.17
Step-by-step explanation:
PLEASE HELP ME!!
Brainliest for most helpful
If you use bit. ly I will ban you
Don't try me
All I need is a decimal
Answers
It might be 0.432 because add all the mornings numbers, 19,2,6,16.
19+2+6+16 = 43.
How many Freshman? 19 so 19/43 and then you divide 19 and 43
19/43 and you get 0.4418604651 about and it looks to be close to 0.432.
What is the sum of 5.6 + 2.89?
Answers
Answer:
The sum is 8.49
Step-by-step explanation:
All you have to do is add the tenths place together but keep the hundredths the same. Hope this helps.