Answer:
40
Step-by-step explanation:
4 x 2 = 8 x 5
l x w x h
or
Bxh
7-7
___
8-(-3)
0
_
11
Slope =0
Answer:
77g
Step-by-step explanation:
10 % of 70 = 7
70 + 7 = 77
70 / 10 = 7 ( 10%)
The numbers are 9 and 10.
Let x be the first number. Since they are consecutive, this means (x+1) represents the second number.
The square of x is x². The square of (x+1) is
(x+1)²=(x+1)(x+1)=x²+1x+1x+1=x²+2x+1
The difference of these squares would be given by
x²+2x+1 - x²
Setting this equal to 19,
x²+2x+1 - x² = 19
Combining like terms,
2x+1=19
Subtract 1 from each side:
2x+1-1=19-1
2x=18
Divide both sides by 2:
2x/2 = 18/2
x = 9
The first number, x, is 9. This means the second number, x+1, is 9+1=10.
- 8 and 4
These are the terms of a geometric sequence with a common ratio r
r = 
= 
= 
= - 
the next 2 terms are obtained by multiplying the previous term by r
16 × - = - 8
- 8 × - = 4
