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mafiozo [28]
3 years ago
12

What is the surface area of the cone below with radius 9 cm and height 12 cm?

Mathematics
1 answer:
V125BC [204]3 years ago
4 0

Answer:

A≈678.58cm²

Step-by-step explanation:

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Can someone plz help me with this one problem plzzz!!!
tresset_1 [31]

so, you just use the x's from the table and plug them into the equation to find the y.

y=(1)+9

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y=(2)+9

y=11

y=(3)+9

y=12

y=(4)+9

y=13

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6 0
3 years ago
Me ayudan por favor con estos ejercicios de álgebra con la 15, 16 y 17
SashulF [63]
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7 0
3 years ago
Determine the value of B such that the line defined by 8x + By + 92 = 0 passes through the point (-4,12).
zvonat [6]
8x + By + 92 = 0

(-4; 12) ⇒ x = -4; y = 12

subtitute

8 · (-4) + 12B + 92 = 0
-32 + 12B + 92 = 0
12B + 60 = 0    |subtract 60 from both sides
12B = -60    |divide both sides by 12

B = -5
8 0
3 years ago
In a right triangle, the acute angles measure x + 15 and 2x degrees.
Valentin [98]

Answer:

50°

Step-by-step explanation:

x+15+2x=90

3x=90-15=75

x=75/3=25

one acute angle=25+15=40°

other acute angle=2×25=50°

7 0
3 years ago
Help me guyssssss skeks
monitta

Answer:

19

Step-by-step explanation:

|-8 -11|=19

7 0
2 years ago
Read 2 more answers
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