4 significant figures.
we can start counting the numbers after all the zeros in front. the zeros in front doesn't count in. but the zeros after the first number that is 1 or larger counts.
therefore we only need to look at 3010
You can always draw a straight line between two points, so 2 points are always collinear.
However, coplanar means that the two points fall within the same plane. If you’re describing two different points from two different planes, they wouldn’t be collinear, but if they were on the same, they would be collinear.
We can conclude from this information that the answer is B.
Hope this helps!
Addition and Subtraction in Scientific Notation. A number written in scientific notation is written as the product of a number between 1 and 10 and a number that is a power of 10. That is, it is written as a quantity whose coefficient is between 1 and 10 and whose base is 10.
Answer:
Step-by-step explanation:
20) the plane figure is a parallelogram. In a parallelogram, the opposite sides are equal. This means that
2a + 6 = 3a - 10
3a - 2a = 6 + 10
a = 16
Also
6b - 3 = 5a + 1
6b = 5a + 1 + 3
6b = 5a + 4
Substituting a = 16 into 6b = 5a + 4, it becomes
6b = 5 × 16 + 4
6b = 84
b = 84/6 = 14
21) The opposite angles of a parallelogram are congruent. Therefore,
5b + 6 = 8a - 10
8a - 5b = 6 + 10
8a - 5b = 16 - - - - - - - - - - 1
Also
The sum of consecutive angles is 180 degrees. Therefore,
8a - 10 + 4a - 8 = 180
8a + 4a - 10 - 8 = 180
12a = 180 + 18 = 198
a = 198/12 = 16.5
Substituting a = 16.5 into equation 1, it becomes
8 × 16.5 - 5b = 16
132 - 5b = 16
5b = 132 - 16 = 116
b = 116/5 = 23.2
22) The diagonals of the he parallelogram bisect each other. Therefore,
5b - 7 = 3b + 6
5b - 3b = 6 + 7
2b = 13
b = 13/2 = 6.5
Also,
3b - 5 = 2a
2a = 3 × 6.5 - 5
2a = 14.5
a = 14.5/2 = 7.25
23) opposite sides of the parallelogram are equal. Therefore,
1.4b = b + 8
1.4b - b = 8
0.4b = 8
b = 8/0.4 = 20
Also,
3a + 1.8 = 4a - 6.6 (they are alternate angles). Therefore,
4a - 3a = 1.8 + 6.6
a = 8.4
Answer:
12
Step-by-step explanation:
distribute the 2, turning the equation into 2x+12=36
subtract 12 from both sides, now resulting in 2x=24
then divide by 2