Answer:
<em>y = 4x - 57 </em>
Step-by-step explanation:
(
,
)
(
,
)
m =
y -
= m ( x -
)
~~~~~~~~~~~~~~~
( 15 , 3 )
( 19 , 19 )
m =
= 4
y - 3 = 4 ( x - 15 )
<em>y = 4x - 57</em>
X=2
Distribute 3 into parentheses. Then subtract 15 from both sides which gives you 3x=x+4.
Subtract x from both sides which gives you 2x=4. Divide by 2 on both sides thus giving you x=2.
∆ABC and ∆FDE are congruent by the SSS
criterion.
x + 3 = 14 |subtract 3 from both sides
x = 11
subtitute the value of x to the equation x - y = 3
11 - y = 3 |subtract 11 from both sides
-y = -8 |change the signs
y = 8
Answer: x = 11 and y = 8.
Answer:
18
Step-by-step explanation:
13.5 / 3 = 4.5
so 4 x 4.5 = 16 + 2 = 18
Answer:
(a-1) *(a^2 +a-1) (a+2)
Step-by-step explanation:
a^4+2a^3-a-2
Lets factor by grouping
a^4-a + 2a^3-2
Factor out an a from the first group and a 2 from the second group
a(a^3 -1) +2(a^3-1)
Factor out (a^3-1)
(a^3-1)(a+2)
We need to recognize that a^3-1 is the difference of cubes
(x^3-y^3) = (x-y) (x^2+xy+y^2)
Let x=a and y=1
(a-1) *(a^2 +a-1) (a+2)