66.5 divided by 3.5 is 19.
It will be 69 degrees.
(x-1)+x+43=180
2x+42=180
2x=138
x=69
Answer:
16 pi cubic units
Step-by-step explanation:
Given that a region is bounded by
And the region is rotated about x axis.
We can find that here radius would be y value and height would be dx
So volume would be as follows:
If f(x) is rotated about x axis volume
= 
cubic units.
Answer:
0.28
Step-by-step explanation:
Given in question that,we have to decrease by 72%.that means from 100% of total, 72% should be decreased. that means an overall of 28% will be left. so if you make a number into 28% of it, it implies that you have decreased that number by 72%.so from this,we can say that we have to make the number 28%.that means we have to multiply the number with 28/100 which is equal to 0.28.
Answer:
x=21
Step-by-step explanation:
4x+12=96
subtract 12 from both sides
4x=84
divide both sides by 4
x=21
