The missing angle is 49 :)
Interval notation uses an ordered pair inside brackets. The ordered pair is ...
... lower end of the interval, upper end of the interval
The brackets are square if the endpoint is included (solid dot, or "≤"), and they are curved (parentheses) if the endpoint is not included (open dot, or "<"). The brackets don't have to match.
Here, your interval is -4 ≤ x ≤ -1, so we use square brackets around the end values -4 and -1.
... [-4, -1]
Answer:
C.
Step-by-step explanation:
5/8 = 20/32
20/32 ÷ 2 = 10/16
10/16 ÷ 2 = 5/8
The answer would be 28 square inches because you would multiple the length (4 inches) and the width (7 inches) to each other.
Answer:13 = Smaller Angle and 77 = Larger Angle
Step-by-step explanation: If the measure of the larger of the two complementary angles is 38 more than three times the measure of the smaller angle.
This tells us there are two angles.
- A larger one
- A smaller one
- We then look for which angle is being compared to the other one.
"38 more than three times the measure of the smaller angle"
- This tells us the smaller angle is the angle that being compared to thus it can be labeled as x.
- Let x = the smaller angle
To find the larger angle we must write out all the modifications. This angle is 38 more than. To represent 38 more than we can say +38 (more than indicating addition).
To represent three times the angle we can write 3x (three copies of x)
Thus...
- Let 3x+38 = the larger angle.
If both angles are complementary then they add to 90 so..
- x+3x+38=90
- We can combine like terms to get...
- 4x+38=90
- Subtract 38 and we get 4x=52 and then
- Divide by 4 on both sides nd we get x=13.
- We then can substitute x=13 in and get 13 and 77