The answer for ur question is :
35/8=4.375
so delia has 4.375 yard of ribbon
HOPE THIS HELPS !!!! :))
From the double-angle identity,
we can rewritte our given equation as:
By factoring 2cosx on the left hand side, we have
This equation has 2 solutions when
From equation (A), we obtain
and from equation (B), we have
On the other hand, we can find one more solution from the original equation by substituting x=0, that is,
then, x=0 is another solution. In summary, we have obtained the following solutions:
However, the intersection of the last set is empty. So the unique solution is x=0 as we can corroborate on the following picture:
Therefore, the solution set is: {0}
Answer:
stratisfied Sampling
Step-by-step explanation:
By definition, stratified sampling is a method of sampling from a population which can be partitioned into subpopulations.
Combine numbers with the same variable so 10a + 7a = 17a and 3b + 6b = 9b. So the full answer is 17a + 9b.
A. 540 is 60% of 900 so 900 people were surveyed.
60/100 • x= 540
Multiply both sides by 100
Then divide both sides by 60
B. If you subtract 900-540 your answer will be 360. 360 people preferred running.