There is an infinite amount of numbers in-between 34.65 and 34.66 for example, 34.652 or 34.6534
Answer:
Cos θ = -4/5
Tan θ = -3/4
Step-by-step explanation:
The question is as following:
Select the correct answer from each drop-down menu.
Angle θ lies in the second quadrant, and sin θ =3/5.
cos θ = -4/5, -3/5, 3/5, 4/5
tan θ = -4/3, -3/4, 3/4, 4/3
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Since, the angle lies in second quadrant (negative x axis and positive y axis) we can deduce that cos θ is negative and tan θ is also negative.
If sin θ =3/5
∴ Cos θ = -4/5 ⇒ because θ lies in the second quadrant.
And
Tan θ = (sin θ)/(cos θ) = (3/5) / (-4/5) = -3/4.
or x= twelve-fifths
Option A is correct.
Step-by-step explanation:
We need to find the solution of:
Solving:
Taking square on both sides:
Verifying the solution by putting x = 12/5 in the given equation, we get true result.
So, or x= twelve-fifths
Option A is correct.
Keywords: Solving Square root Equations
Learn more about Solving Square root Equations at:
#learnwithBrainly
Answer:
2 sqrt(30)
Step-by-step explanation:
We want to find the norm of the matrix
( -2 6
4 8)
Take the square root of the sum of the squares
sqrt( (-2) ^2 + 6^2 + 4^2 + 8^2)
sqrt( 4+36+16+64)
sqrt( 120)
sqrt( 4*30)
2 sqrt(30)