Answer:u
Step-by-step explanation:
20/8 = 4K/32
5/2 = K/8
Cross multiply
2K = 5×8
2K = 40
K = 40/2
K = 20
Answer:it’s (2,5)
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer:
x
=
2
±
√
7
Explanation:
there are no whole numbers which multiply to - 3
and sum to - 4
we can solve using the method of
completing the square
the coefficient of the
x
2
term is 1
∙
add subtract
(
1
2
coefficient of the x-term
)
2 to
x2
−
4
x
⇒
x
2
+2(−
2
)
x
+
4
−
4
−
3
=
0
⇒
(
x
−
2
)2
−
7
=0
⇒
(
x
−
2
)
2
=
7
take the square root of both sides
⇒
x
−
2
=
±
√
7
←
note plus or minus
⇒
x
=
2
±
√
7←
exact solutions
Answer:
m= 34
Step-by-step explanation: remember a2 plus b2 = c2
