A direct proportional variation, is really just a slope-intercept form of equation, except that the y-intercept is always 0, and the constant of variation "k" is the slope pretty much.
<span>Any point in figure A can be mapped to a point in figure B.</span>
A regular polygon has all equal sides and angles, a quadralateral means it has four sides, you are correct.
it can be used to calculate the length of a circular bracelet
Answer:
<u><em>The missing number is 31.</em></u>
Step-by-step explanation:
7+3=10
10+5=15
15+7=22
<u>The number added goes from 3 to 5 to 7, this means each time 2 is added.</u>
Therefore, the next number would be 22+(7+2) or 22+9 which equals 31.
And to check if this fits in we can plug the 31 into the sequence.
7, 10, 15, 22, 31, 42
7+3=10
10+5=15
15+7=22
22+9=31
31+(9+2)= 31+11=42
