Answer:
see explanation
Step-by-step explanation:
A difference of 2 squares factors in general as
a² - b² = (a - b)(a + b)
(x - 1)² - 25 ← is a difference of squares
with a = x - 1 and b = 5, thus
(x - 1)² - 25
=(x - 1 - 5)(x - 1 + 5) = (x - 6)(x + 4), then
(x - 6)(x + 4) = 0
Equate each factor to zero and solve for x
x - 6 = 0 ⇒ x = 6
x + 4 = 0 ⇒ x = - 4
Solutions are x = - 4, x = 6
1/-5, because when x INCREASES by 1, y DECREASES by 5
Answer:
x=6,-4
Step-by-step explanation:
Use the formula (b/2)^2 in order to create a new term. Solve for x by using this term to complete the square.
x=6,-4
8 meters is equivalent to 8000 millimeters, 1 meter = 1000 milimeters
Hope this helps
Answer to Q2:
Can't really do a tree diagram here but the combinations are:
NN
NR
NW
NG
RN
RR
RW
RG
WN
WR
WW
WG
GN
GR
GW
GG
That's 16 combinations, 4 of which are matching both pants and shirt. 4/16 = 1/4. So there's a 25% chance of a matching outfit.
199/100 = 1.99
1.99*20 = 39.8
20% = 39.8
