Answer:
2n+10=-2
2n=-2-10
2n= -12
N= -12/2
n=-6
Step-by-step explanation:
Easy bullet point 2 is the answer
Answer:
Distance=520cm
Step-by-step explanation:
The solution is in the image
Answer:
16x-2 = 15x+5 (reason: corresponding angles are equal)
16x-15x-2 = 5
1x-2 = 5
1x = 5+2
1x = 7
x = 7
DEGREE MEASUREMENT OF 16x-2:
16(7)-2
= 112-2
= 110°
50 - 2y2
STEP
2
:
STEP
3
:
Pulling out like terms
3.1 Pull out like factors :
50 - 2y2 = -2 • (y2 - 25)
Trying to factor as a Difference of Squares:
3.2 Factoring: y2 - 25
Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)
Proof : (A+B) • (A-B) =
A2 - AB + BA - B2 =
A2 - AB + AB - B2 =
A2 - B2
Note : AB = BA is the commutative property of multiplication.
Note : - AB + AB equals zero and is therefore eliminated from the expression.
Check : 25 is the square of 5
Check : y2 is the square of y1
Factorization is : (y + 5) • (y - 5)
Final result :
-2 • (y + 5) • (y - 5)
