Answer:
1. if x + 5 = 12, then x = 7
:Subtraction property of equality
2. If x + y = 20, and y = 5, then x + 5 = 20.
<u>:Substitution property of equality</u>
3. If 2x3 = 11, then 11 = 2x - 3.
<u>:Symmetric property of equality</u>
Step-by-step explanation:
7+8+9=24
second integer is 8 so 8*3=24
Answer:
positive
Step-by-step explanation:
Using the acronym ASTC (all students take calculus), this means that if sin and tan are negative, they must be in the fourth quadrant, which means that cos is positive.
ASTC is an acronym to help students remember which of the three basic trigonometric functions are positive in which quadrants.
A: all
S: sin
T: tan
C: cos
It starts from the first quadrant: all the sin, tan, cos are positive in the first quadrant, only sin is positive in the second quadrant, only tan is positive in the third quadrant, only cos is positive in the fourth quadrant.
Please find the solution below.. If you have questions, let me know.
First you want to figure out 196- 16. That will give you 180. Now divide 180 by 2, which is 90. So the numbers in the parentheses have to add up to 90. Now you want to add 7 and 5. This will give you twelve. Then subtract 12 from 90 to get 78. 78 divided by 3 will give you nine. 78 divided by 3 is 26, so y would be equal to 26.