Answer:
17 - 7m
Step-by-step explanation:
Assuming you require to subtract the expressions, then
16 + m - (8m - 1) ← distribute parenthesis by - 1
= 16 + m - 8m + 1 ← collect like terms
= 17 - 7m
Answer:
c
Step-by-step explanation:
because if u fold the nets and see the horizontal part of the left flat surface is equivalent to the right flat surface that is c
-k-(-8k+7)
Distribute the negative sign
-k+8k-7
Combine like terms
7k-7
Nothing further can be done with this equation so the answer is: 7k-7
Step-by-step explanation:
From Pythagorean theorem, one of the sides can be determined as x^2 + y^2 =8^2
or y = (8^2 - x^2)^(1/2)
we can write the perimeter P as
P = 2x + 2y ---> 20 = 2x + 2(8^2 - x^2)^(1/2)
Dividing by 2, we get
10 = x + (8^2 - x^2)^(1/2)
Move the x to the other side,
10 - x = (8^2 - x^2)^(1/2)
Take the square of both sides to get rid of the radical sign:
(10 - x)^2 = 8^2 - x^2
Move everything to the left and expand the quantity inside the parenthesis:
x^2 + (100 - 20x + x^2) - 64 = 0
2x^2 - 20x + 64 = 0
or
x^2 - 10x + 32 = 0
Now we can see that a = -10 and b = 32
Answer:worked 7 hours
Step-by-step explanation:
93 - 65 = 28
28/4 = 7 hours
