Answer:
7
Step-by-step explanation:
x+y=30
x-y=16
2x=14
therefore x=7 and y=23.
the smallest number is 7.
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Answer:
median is 10
Step-by-step explanation:
5,7,9,11,13,13
Answer:
r = 5
Step-by-step explanation:
12 - 1/5r = 2r + 1
12 - 0.2r = 2r + 1
12 - 0.2r + 0.2r = 2r + 0.2r + 1
12 = 2.2r + 1
12 - 1 = 2.2r + 1 - 1
2.2r = 11
2.2r ÷ 2.2 = 11 ÷ 2.2
r = 5
Answer:
- commutative property
- distributive property
Step-by-step explanation:
The expression
4.7x + 10.4 + 15.3x − 8.4x + 15.6
can be simplified in a few stages. First of all, we use the commutative property of addition to swap terms 2 and 3.
4.7x +15.3x +10.4 -8.4x +15.6
Next, we use the distributive property to factor x from the first two terms.
(4.7 +15.3)x +10.4 -8.4x +15.6
Now we perform addition.
20x +10.4 -8.4x +15.6 . . . . . . . . equivalent expression
When we are given sides and an angle, and a right triangle (seemingly), the easiest method of solving is using trigonometry.
Remember: SOH-CAH-TOA
Looking from the given angle, we are given the opposite side and want to know the hypotenuse. Therefore, we should use the sin function.
sin(34) = 2 / x
(x)(sin(34)) = 2
x = 2 / sin(34)
x = 3.7801
x = 3.7801
---Feel free to round to whereever you need/is required by your assignment.
Hope this helps!