Answer:
Supplementary
Step-by-step explanation:
∠ADW = 60 +90 = 150°
∠ADW + ∠YDW = 150 + 30 = 180°
If sum of two angles is 180, then they are supplementary
In order to answer this question, we must break this mathematical expression up into a series of mathematical operations (exponent, multiplication,division, addition, and/or subtraction):
"4 times a number" - The word "times" implies that we have to multiply 4 by an unknown number. We can simply label this unknown number as x.
"cubed" - In order to "cube" a number, we must raise it to the third power, or have an exponent of 3. Our unknown number of x now becomes x3 because we raised it to the third power.
"decreased by 7" - The word "decreased" implies that we must subtract 7 from the product of 4 multiplied by x3
With all of the information we now have, we can form an algebraic expression for this problem.
"4 times a number cubed decreased by 3" now becomes:
4x3 - 7
(3)(2)(4) is how I see it.
•You can do 3*2 = 6 then 6*4 = 24
•You can do 3*4 = 12 then 12*2 = 24
•You can also do 2*4 = 8 then 8*3 = 24
•It equals 24 no matter what way you do it.
I don't know what method they want you to use to find this, but you could just keep adding 3 to the previous number. Week 5 she has 25. Week 6 she has 28. Week 7 she has 31. 8, 34. 9, 37. 10, 40. 11, 43. 12, 46. 13, 49. 14, 52. 15, 55. 16, 58. 17, 61. And finally, at week 18, she will have 64 stamps.
