Answer:
<h2>The equivalent to sin 60 is cos 30</h2>
Step-by-step explanation:
we can obtain our answer either from calculator
or from four figure table
from calculator punching sine 60 will display 0.8660
likewise cosine 30 will display 0.8660
Hence both trigonometric values are equivalent
Answer:
187.5
Step-by-step explanation:
17 × 5 = 85
100 - 85 = 15% = 0.15
1250 × 0.15 = 157.5
Option D
<u>Answer:
</u>
y = 
is the equation representing proportional relationship.
<u>
Solution:
</u>
For the proportional relationship, for all values of x, 
must be a constant value.
Let’s check option A.
Divide both the sides by x.
For x = 1,
For x = 2,
So is different for x = 1 and x = 2.
So option A do not represent proportional relationship.
Similarly for option B and C also there is constant term in the equation.
So option B and C will also have different values of for two values of x.
For option D
So for all value of x in above case y/x will be 1/3 .hence D is correct option , that is y = (1/3)x is the equation represents proportional relationship.
Not quite sure what you mean by brackets, but you can get the solution to this equation in a few steps:
<span>(-2x - 1)</span>² <span>= 0 ... square root both sides to eliminate the squared binomial
</span>√(-2x - 1)² = √0 ... simplify; the square is canceled out and the root of 0 brings you back to 0
-2x - 1 = 0 ... solve like a two-step equation
-2x = 1
x = -1/2 is your x-value.
Answer:
7+6x
Step-by-step explanation:
12+3(2x-3)+4
12+6x-9+4
7+6x
