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Scrat [10]
3 years ago
15

Can someone help me with this problem

Mathematics
1 answer:
fredd [130]3 years ago
4 0
So a triangle angles must add up to 180. You would subtract 180 by the two known angle which are 90 and 30. Then if you subtract them you would get 60. The final answer is 60
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See attached image. For part b, my answer is <img src="https://tex.z-dn.net/?f=h%28t%29%3D%5Cfrac%7Bt%5E2%7D%7B100%7D-%5Cfrac%7B
ArbitrLikvidat [17]

Answer:

a) shown

b) h = [sqrt(17) - (5/2)t]²

c) t = 2sqrt(17)/5 seconds

Step-by-step explanation:

V = pi × r² × h

V = pi × 5² × h

V = 25pi × h

a) dV/dt = dV/dh × dh/dt

-5pi × sqrt(h) = 25pi × dh/dt

dh/dt = -sqrt(h)/5

b) 1/sqrt(h) .dh = -5. dt

2sqrt(h) = -5t + c

t = 0, h = 17

2sqrt(17) = 0 + c

c = 2sqrt(17)

2sqrt(h) = -5t + 2sqrt(17)

sqrt(h) = [2sqrt(17) - 5t] ÷ 2

sqrt(h) = sqrt(17) - (5/2)t

Square both sides

h = [sqrt(17) - (5/2)t]²

c) empty: h = 0

0 = [sqrt(17) - (5/2)t]²

sqrt(17) - (5/2)t = 0

(5/2)t = sqrt(17)

t = 2sqrt(17)/5

t = 1.64924225 seconds

sqrt: square root

5 0
3 years ago
Given that the hypotenuse of a triangle is c, which is the Pythagorean Theorem? a2 + c2 = b2 a2 – b2 = c2 2a + 2b = 2c none of t
Alexandra [31]
The pythagorean theorem states that a^2+ b^2=c^2.
Final answer: None of the above
6 0
3 years ago
Read 2 more answers
How can you use a number line to order rational numbers? Give an example.
Margaret [11]

Yes use a number line cuz it'll help you

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3 years ago
True or False: The ordered pair (2, 2) is on triangle A'B'C'.
Brums [2.3K]

Answer: true

Step-by-step explanation:

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3 years ago
Write this word sentence as an equation. 42 less than x is-50
salantis [7]
42 less than x is -50 would be written as x - 42 = -50
7 0
2 years ago
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