X = base / tan(angle)
x = 8.9 / tan(55)
x = 6.23
x= 6.2
Answer is A
"Isolate the constant by adding 7 to both sides of the equation."
This step separates the non-squareable 7 and the squareable
.
"Add 9 to both sides of
to form a perfect square trinomial while keeping the equation balanced."
After separating the non-squareable, add the number which makes the first or left side a perfect square trinomial. The formula to find the number is:
.
When we plug the values:
Simplify:
"Write the trinomial
as
squared."
When you factor
, you will get
.
"Use the square root property of equality to get
."
The 16 is coming from the part when we add 9. We needed 9 on the left side for a perfect square, but to protect the balance of the equality, we need to add 9 to the right side too. When we add 7 and 9, we got 16, and that is where it came from.
"Isolate the variable x to get solutions of -1 and 7."
To isolate x we branched the plus-minus sign:
It’s a isosceles trapezoid or a quadrilateral. Either one should work. It has a line of symmetry bisecting one pair of opposite sides and both the legs and base angles are the same measure.
Answer: The angles are vertical. The value of x=25
Step-by-step explanation:
4x-25=75
+25 +25
4x=100
/4 /4
x=25
I hope this help you! :)
4/7 of a chance. There are a total of 14 cars. 6 are yellow. 8 are not. 8/14 of the cards are not yellow. 8/14 simplifyed= 4/7.