Answer:
28. 120 degrees
29. 30 degrees
30. 56 degrees & 124 degrees
31. 72 degrees, 108 degrees, and 18 degrees
Step-by-step explanation:
We assign variable x for the answer we are looking for (28-29).
28.
Supplement means x + y = 180 degrees. We also know x = 2y. Substitution gives us 3y = 180 degrees, so y = 60 degrees and x = 120 degrees.
29.
Complement means x + y = 90 degrees. We are given 2x = y. Substitution brings us 3x = 90 degrees, x = 30 degrees.
30.
Supplement means x + y = 180 degrees. We are told that y = 2x + 12, so we substitute. This gives 3x + 12 = 180 degrees, x = 56 degrees. Substituting that back into the equation for y, we get 124 degrees.
31.
Supplement means x + y = 180 degrees. Complement means x + z = 90 degrees. Using our given info, we know y = 6z. We can substitute that in to get x + 6z = 180. Subtracting our second and third equations, we get 5z = 90, z = 18 degrees. Therefore, x = 72 degrees, y = 108 degrees.
So it should be y = 2*2^x
Where x is the time and y is the final width after x minutes
Answer:
Parallelogram, Rectangle, Square, Rhombus, Trapezoid. ... ANSWER Trapezoid: there is one pair of parallel sides
Step-by-step explanation:
there is one pair of parallel sides
Answer:
x(x-1)
Step-by-step explanation:
<span>10.What expression is equivalent to the amount Miko paid?
A) 16 + 1.18
B) 1 + 1.18(16)
C) (16 + 0.18)16
<span>D) 16 + 0.18(16)
9. </span></span>2.75
8. 22 seconds with 23 min<span>
7. </span><span>0.00892857142
6. -0.48
5. can't do it
4. 8.16 cm
3. </span>-3.42857142857
2. 8.3333
1. -1.75
