For this case we have the following function:
f (x) = - 4sine ((pi / 6) x) + 5
We evaluate the function for x = 0
f (0) = - 4sine ((pi / 6) 0) + 5
f (0) = -4 * (0) + 5
f (0) = 5
We note that the result does not correspond to the table.
Let's rewrite the function:
f (x) = - 4cosine ((pi / 6) x) + 5
We evaluate the function for x = 0
f (0) = - 4cosine ((pi / 6) 0) + 5
f (0) = -4 * (1) + 5
f (0) = 1
The result corresponds to the table
Answer:
The student's mistake is to use the sine function instead of using the cosine function.
The correct function is:
f (x) = - 4cosine ((pi / 6) x) + 5
Repost your question. There is clearly a typo on the right side.
We need two equations for this.
A) (H * J) / (H + J) = 3
Harry is 8 hours faster than Jimmy
B) H + 8 = J
Inserting equation B into A gives us:
A) (H * (H+8))/ (H + H +8) = 3
H^2 +8H / (2H +8) = 3
H^2 + 8H = 6H + 24
H^2 + 2H -24 = 0
H = 4
and so J = 12
Harry takes 4 hours and Jimmy takes 12 hours.
<span>Which of these numbers is irrational?
a. square root of 3
b. 0.25
c. 1/5
d. square root of 9
answer
</span><span>a. square root of 3
</span><span>--------------------------------
What is (-7)^5 in expanded form?
a. -7 • -7 • -7 • -7 • -7
b. -7 • 5
c. (-7) • 7 • (-7) • 7 • (-7) • -7
d. 5 • 5 • 5 • 5 • 5 • 5 • 5
answer
</span><span>a. -7 • -7 • -7 • -7 • -7 </span>
Answer:
2 − 1.4h
Step-by-step explanation:
Step 1) Expand the terms in the parenthesis.
Step 2) Combine like terms
3 ⋅ 2 − 3 ⋅ 0.9h + 1.3h − 4
6 − 2.7h + 1.3h − 4
6 − 4 − 2.7h + 1.3h
2 − 1.4h