Answer:
3√25 is irrational
-11/151 is rational
1.1625 is rational
5.15603418923 is rational
√256 is irrational
√141 is irrational
Step-by-step explanation:
Answer:
= 6 over 23 (or = 6/23
Step-by-step explanation:
Convert mixed numbers to improper fractions 3 5/6 = 23/6
Convert element to fraction
= 1 divide 23/6
Apply the fraction rule: a/b divide c/d = a/b x d/c
= 1 over 1 (or 1/1) divide 23/6
Apply rule a/a = 1
= 1 over 1 (or 1/1) x 6/23
Multiply 1x 6/23 = 6/23
= 1 x 6/23
ANSWER 6/23
Hope this helps!
Answer: A=l⋅w where A is the area of the rectangle, l is the length of the rectangle and w is the width of the rectangle.
Problem 7: Correct
Problem 8: Correct
Problem 9: Correct
The steps are below if you are curious
===========================================================================================
Problem 7
S = 180*(n-2)
2340 = 180*(n-2)
2340/180 = n-2
13 = n-2
n-2 = 13
n = 13+2
n = 15
I'm using n in place of lowercase s, but the idea is the same. If anything, it is better to use n for the number of sides since S already stands for the sum of the interior angles. I'm not sure why your teacher decided to swap things like that.
===========================================================================================
Problem 8
First find y
y+116 = 180
y+116-116 = 180-116
y = 64
which is then used to find x. The quadrilateral angles add up to 180*(n-2) = 180*(4-2) = 360 degrees
Add up the 4 angles, set the sum equal to 360, solve for x
x+y+125+72 = 360
x+64+125+72 = 360 ... substitution (plug in y = 64)
x+261 = 360
x+261-261 = 360-261
x = 99
===========================================================================================
Problem 9
With any polygon, the sum of the exterior angles is always 360 degrees
The first two exterior angles add to 264. The missing exterior angle is x
x+264 = 360
x+264-264 = 360-264
x = 96
