Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 11
+ 44
B. 11
- 44
C. 11
- 4
D. 
Answer: B
Mathematics
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Solve the problem.If you toss four fair coins, in how many ways can you obtain at least one head?
A. 15 B. 16 C. 5 D. 4
Mathematics
Provide an appropriate response.If s3t3 + 2r2 - s2 = 1, then 
=
A. - 
.
B. 
.
C. 4r.
D. 
.
E. none of the above
Mathematics
Establish the identity.tan
= -cot x
What will be an ideal response?
Mathematics
Solve. Write the answer as a mixed number in simplest form.Ellen is knitting a scarf with one 7
-inch blue stripe, one 3
-inch green stripe, and one 1
-inch white stripe. How wide is the scarf?
A. 12
in.
B. 2
in.
C. 
in.
D. 
in.
Mathematics