Answer:They are all Less Than
Step-by-step explanation:
Answer:
x=2
Step-by-step explanation:
4^2x-4=4^0
2x-4=0
2x=4
x=4/2
x=2
Answer:
38.6m
Step-by-step explanation:
Theory of solving angle of elevation problem bus to take it as a right angle triangle.
The length of the the rope is the hypotenuse and the angle formed is the hypotenuse angle.
To determine the height , we take the side as opposite the angle.
Sin (angle) = height/hypotenus
Sin40= height/60
0.6428 *60 = height
38.568 = height
Approximately 38.6m
2x - 1 > 7 ; Start
2x > 8 ; Add 1 to each side of the inequality
x > 4 ; Divide both sides by 2
So, x have to be less than 4 in order to be in the solution set.
To do this task the best way is always add both "sides" of ratio and divide whole group by this sum.
sum=4+7=11
33:11=3
Now we know how much is 1 and we can multiply by 4 and by 7 to find the answer.
3*4=12 - first group
3*7=21 - second group
Your result is ok.
