Answer:
Ricardo hiked 29 miles.
Step-by-step explanation:
10 6/11 x 2 3/4
convert
116/11 x 11/4 = 1276/44
1276/44 = 29
Answer: 18
Step-by-step explanation: Simplify 2^3 to 8. 3/4 (8+4^2). Simplify 4^2 to 16. 3/4 (8+16). Simplify 8+10 to 24. 3/4*24. Use this rule: a/b * c = ac/b. Simplify 3*24 to 72. 72/4.
<em>Hope this helps!</em>
Answer:
Step-by-step explanation:
t
=
−
122
Answer:
you're not doing anything wrong
Step-by-step explanation:
In order for cos⁻¹ to be a function, its range must be restricted to [0, π]. The cosine value that is its argument is cos(-4π/3) = -1/2. You have properly identified cos⁻¹(-1/2) to be 2π/3.
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Cos and cos⁻¹ are conceptually inverse functions. Hence, conceptually, cos⁻¹(cos(x)) = x, regardless of the value of x. The expected answer here may be -4π/3.
As we discussed above, that would be incorrect. Cos⁻¹ cannot produce output values in the range [-π, -2π] unless it is specifically defined to do so. That would be an unusual definition of cos⁻¹. Nothing in the problem statement suggests anything other than the usual definition of cos⁻¹ applies.
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This is a good one to discuss with your teacher.
Because 17 37/50 is a mixed fraction, we must convert it into an improper fraction:




To make dividing the fraction easier, we can multiply the numerator and denominator by 2:

Now it's easier to divide the numerator by the denominator:

17 37/50 converted into a decimal is
17.74.