-4p+1 = -4(2)+1 = -8+1 = -7
Answer:
77.
Proved
78.
Proved
79.
Proved.
80.
Proved.
Step-by-step explanation:
77. Left hand side
=
=
=
{Since we know,
}
=
= Right hand side (Proved)
78. Left hand side
=
=
{Since
}
=
= Right hand side (Proved)
79. Left hand side
=
=
{Since
}
=
= Right hand side
80. Left hand side
=
=
{Since
}
=
=
= Right hand side. (Proved)
X=10.5
8/6=14/x
Cross multiply
8x=84
Divide 8 to both sides
X=10.5
11^9 -11^8 + 11^7 = 2163075981
2163075981/3 = 721025327
2163075981/37 = 58461513
Yes it is divisible by both 3 and 37
Therefore, the best and most correct answer among the choices provided by the question is the fourth choice "15 - 2x ≥ 4y". I hope my answer has come to your help.