Answer:
105degrees
Step-by-step explanation:
Using the theorems that states that the sum of the opposite side of the quadrilateral is 180degrees, hence;
<RST + <TQR = 180
5x+15 + 4x+ 3 = 180
9x + 18 = 180
9x = 180 - 18
9x = 162
x = 162/9
x = 18
Since <RST = 5x+15
<RST = 5(18) + 15
<RST = 90 + 15
<RST = 105degrees
Hence the measure of <RST is 105degrees
Answer:
C is correct. Note that the given 6(74) is equivalent to 6(70 + 4).
Step-by-step explanation:
C is correct. Note that the given 6(74) is equivalent to 6(70 + 4).
Answer:
A = 471
B = 4
Step-by-step explanation:
multiply by pi 3.14
AB<span> is a straight line divided at C so that the rectangle contained by </span>AB<span>, </span>BC equals<span> the square on AC ; if AD is </span>equal<span> to </span>BC<span>, </span>
- I’m assuming the expression implies the following:
(1-n)/(n^2 - 1)
The steps goes as follows:
= -(n-1)/(n^2-1) (factored a negative out)
= -(n-1)/[(n+1)(n-1)] (Factored denominator into a difference of squares, but don’t just blindly accept the fact, expand it and you should get the original denominator)
At this point, the (n-1) terms cancel, as you should know: a real number, besides 0, over itself is 1.
= -1/(n+1) , which is the answer
Note: You could also see it as 1/-(n+1) or 1/(-n-1)