3x - 2 = x + 1
2x = 3
x = 3/2
x = 1.5
3x - 2 = 3(1.5) - 2 = 2.5
or
x + 1 = 1.5 + 1 = 2.5
P = 4(2.5) = 10
perimeter of square is 10 cm so side of square = 2.5cm
Circumference of the outer circle = 2πr = 2π(6) = 12π
circumference of the outer arc = 120/360 x 12π = 12.57cm
circumference of the inner circle = 2πr = 2π(5) = 10π
circumference of the inner arc = 120/360 x 10π = 10.47 cm
Difference in length = 12.57 - 10.47 = 2.1cm (1 d.p.)
Answer: 2.1cm
Aproximately 15%
975-829=146 (difference)
(146/975)×100 = 14.974435897
We already know that the distance of all the planets are generally calculated by keeping the Sun as the main location point.
Explanation:
The distances of all the planets from the Sun in scientific notation and exponential form-
Mercury-
57
million kilometers.
Scientific notation-
5.7
⋅
10
7
km
Venus-
108
million kilometers.
Scientific notation-
1.08
⋅
10
8
km
Earth-
150
million kilometers
Scientific notation-
1.5
⋅
10
8
km
Mars-
228
million kilometers
Scientific notation-
2.28
⋅
10
8
km
Jupiter-
779
million kilometers
Scientific notation-
7.79
⋅
10
8
km
Saturn-
1.43
billion kilometers
Scientific notation-
1.43
⋅
10
9
km
Uranus-
2.88
billion kilometers
Scientific notation-
2.388
⋅
10
9
km
Neptune-
4.5
billion kilometers
Scientific notation-
4.5
⋅
10
9
km
Answer:
36x-3y+4z^2+26-7x^2
Step-by-step explanation:
Okay well for starters, you can't subtract that because it's an expression, not an equation. And secondly, there was '?' which I'm going to assue=me was a typing error.
Now to actually simplify this mess of an expression, you just need to combine the like-terms! Once you do that you really can't do anything else, since you don't know the varibles.
