Answer: m = 20.
Step-by-step explanation: A triangle has to be 180 degrees. 180-135-25=20.
Im going to assume you know the formula.
sooo.
x= -11 +- √ (11)² -4 (1) (-15)
---------------------------------
2(1)
= -11 +- √121- (-60)
-------------------------
2
= -11 +- √181
-----------------
2
= -11 +- 13.45
-----------------
2
Either: Or:
X = -11 - 13.45
x = -11 + 13.45 ---------------
2
----- ----------
2
x = 1.23 x= -12.23
Answer:
Option d) x = 25
Step-by-step explanation:
we have
Solve for x
Subtract 4 both sides
squared both sides
Adds 9 both sides
<u><em>Verify </em></u>
1) For x=25
----> is true
therefore
x=25 is a solution
2) For x=-7
The radicand cannot be a negative number
therefore
x=-7 is not a solution
1: w=3
2:w=-4
( 1): ''w2'' was replaced by ''w^2''
w^2+w-(12)=0
Step-by-step explanation:
So you solve the equation for x and then solve it for y. If the x and y match the given ordered pair then the answer is yes
