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andrey2020 [161]
3 years ago
9

What is tan 30°?

Mathematics
2 answers:
kolezko [41]3 years ago
8 0
0.577 make sure your calculator is in degree mode
SCORPION-xisa [38]3 years ago
8 0

Answer:

Hello,

What is tan 30°?

tan(30^o)=\dfrac {\sqrt{3} }{3}

Step-by-step explanation:

sin(30^o)=\dfrac{1}{2} \\\\cos(30^o)=\dfrac{\sqrt{3} }{2} \\\\\\tan(30^o)=\dfrac{sin(30^o)}{cos(30^o)} \\tan(30^o)=\dfrac{\dfrac{1}{2} }  { \dfrac{\sqrt{3} }{2} }\\\\ =\dfrac {1*2}{2*\sqrt{3} }\\\\ =\dfrac {\sqrt{3} }{3}

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If dy/dx=4y and y=4 when x=0, then y=. A) 4e^4x. B) e^4x. C) 3+e^4x. D) 4+e^4x. e) 2x^2+4
aliina [53]
Hello,

dy/dx=4==>dy/y=4dx==>ln(y)=4x+C
==>y=k*e^(4x)
if x=0 y=4==>4=k*e^(4*0)==>k=4

==>y=4*e^(4x)

Answer A (with parenthesis!!!)
8 0
3 years ago
Given: a-b= c-d, b=d-1, c=6; prove: a=5
Brut [27]

Given :

a-b = c-d    ...1)

b = d-1       ...2)

c = 6

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a = 5

Solution :

Adding equation 1 and 2, we get :

(a-b) + (b) = (c-d) + (d-1)

a = c -1   ...3)

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6 0
3 years ago
Find the hypotenuse of each Isosceles right triangle when the legs are of the given measure.
ludmilkaskok [199]

Answer:

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Step-by-step explanation:

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a^2+b^2=c^2

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6 0
3 years ago
Write 8 1/4 as a decimal (not a percentage)
77julia77 [94]
Answer- 8.25
Hope this helped
6 0
3 years ago
Read 2 more answers
4. Compare the function f(x) = –x^2 – 4x + 3 with the function g(x), graphed here. Which function has a greater absolute maximum
inessss [21]

Answer:

f(x) has the greater absolute maximum

Step-by-step explanation:

f(x)=-x^2-4x+3 \\\\f'(x)=-2x-4=-2(x+2)

so f'(x)=0 for x = -2 and f(-2)=-4+8+3=11-4=7

so f(x) has the greater absolute maximum

hope this helps

3 0
4 years ago
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