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mariarad [96]
4 years ago
14

Sin230°= 1. sin130° 2. -sin50° 3. sin50°

Mathematics
1 answer:
belka [17]4 years ago
3 0

Answer:

cosine30

Step-by-step explanation:

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Simplify, y-8(y+12) + 4<br><br>NEED HELP​
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2 years ago
Function f is defined by f(x)=3/2x+c. If f(6)=1, what is the value of f(c)?
ASHA 777 [7]

Answer:

C = - 8

Step-by-step explanation:

f(x) =  \frac{3}{2} x + c \\  \\ plug \: x = 6 \\  \\ f(6) =  \frac{3}{2}  \times 6 + c \\  \\  f(6) = 3 \times 3 + c \\  \\ f(6) = 9+ c \\  \\  \therefore \: 1 = 9 + c \:  \{ \because \: f(6) = 1 \} \\  \\ 1 - 9 = c \\  \\ \huge \red{ \boxed{ c =  - 8}}\\\\f(c) =\frac{3}{2} c +(-8)\\\\\huge \orange { \boxed{ f(c) =\frac{3}{2} c -8}} \\\\

7 0
3 years ago
Given that sin θ = 3/4 and θ is in Quadrant II:<br> Find cos θ.
julsineya [31]

this is for the Sin

*Remember that sin = opposite / hypotenuse*

a² + b² = c² (where a and b are legs and c is the hypotenuse)

From the picture, you can see:

a = 3

c = 4

Plug these into the equation and solve for b.

* a² + b² = c² *

step 1: 3² + b² = 4²

step 2: 9 + b² = 16

step 3: b² = 16 - 9

step 4: b² = 7

step 5: √(b²) = √7

step 6: b = ± √7

FOR COS:

From the picture,  you can see that if θ is in quadrant II, b has to be negative.

b = -√7 = adjacent

Remember that cos θ = adjacent / hypotenuse.

cos θ = adjacent / hypotenuse

cos θ = (-√7 / 4)

4 0
3 years ago
6. y = -3x + 2<br> y = -3x - 7
oee [108]

Answer:

No Solution

Step-by-step explanation:

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8 0
2 years ago
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