need help with this

[bitter tartan]

1. Wait patiently for a helper to come along.
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+close

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[haughty creek]

cos 50 = x/26 , x is the distance from the base

x=26cos50

,calc 26 cos((50*pi)/180)

[golden kestrel]

Result:

16.71247785185

[haughty creek]

16.7 feet

[keen lantern]

thank you !! could you help me out with a few more things?

[keen lantern]

A cylinder has a diameter of 10 mm and a height of 16 mm. If the cylinder is dilated with a scale factor of k = 3, what is the new surface area?

1,890π mm2
4,680π mm2
210π mm2
630π mm2

[haughty creek]

idk what dialated means

I am guessing it means radius becomes 3 times

2(pi 15^2+2 pi 15 16)

,calc 2(pi 15^2+2 pi 15* 16)

[golden kestrel]

Result:

4429.6456415616

[haughty creek]

,calc 2(pi*(5 3^(1/2))^2+2pi5*3^(1/2)*16)

[golden kestrel]

The following error occured while calculating:
Error: Parenthesis ) expected (char 9)

[haughty creek]

,calc 2(pi(5 3^(1/2))^2+2pi53^(1/2)*16)

[golden kestrel]

The following error occured while calculating:
Error: Parenthesis ) expected (char 8)

[haughty creek]

,calc 2(pi(5 3^(1/2))^2+2pi53^(1/2)*16)

[golden kestrel]

The following error occured while calculating:
Error: 'pi' is not a function; its value is:

[haughty creek]

,calc 2(pi*(5 3^(1/2))^2+2pi53^(1/2)*16)

[golden kestrel]

Result:

2212.4862877033

[haughty creek]

yeah sorry I can't help you

[keen lantern]

i got it dw

i have 3 more questions im stuck on

A principal amount of $1,100 is placed in a savings account with an annual interest rate of 5.95% compounded quarterly. How much interest does the account earn after 12 years?

$2,246.36
$2,234.58
$1,146.36
$1,134.58

i wanna say its 2,234