Step-by-step explanation:
I didn't need the other angles, but right of the bat you can tell it's two right triangles back to back.
<em>y </em> has to be 90° , as you have noticed they already gave you 70° on the right side of the shape meaning if you were to add 90 which is why plus 70 what would that give you? 160.
the total interior for a triangles angles has to be 180°. if you do the math 180 - 160 you get the leftover 20° for x.
I suck at explaining stuff, hope this helps
Answer:
It looks like (-1, ∞)
Step-by-step explanation:
Answer:
±√6
Step-by-step explanation:
is your expression first muiltiply out the 10 to get 15n= 10n+10 3/n next subtract 10 n from both sides to get 5n=10+3/n multiply both sides by n to get 5n^2=13 combine both sides and use the quadratic equation to solve to get your solution of ±√6
0.125, it's a terminating decimal because it has a finite number of digits.
Answer:
Step-by-step explanation:
First, what's a polynomial? It's an algebraic expression whose only independent variable is x, and in which all the x powers are either zero or positive and are integers: x^3, x^2, x^1, x^0 (for example).
Looking at possible answer choice A, we immediately reject this because that power of x is in the denominator, representing 2x^(-3). This negative power of x is not allowed. Reject A.
In B, we have the powers x^2, x^1 and x^0. Great. This is a polynomial.
In C, we have x^2 + 1 in the denominator of the final fraction. Reject this because of the final term.
In D, we have x^2 + 2x + √
