Answer:
$135
Step-by-step explanation:
We can answer this by multiplying $150 by (1.00 - 0.10), or by 0.90:
0.90($150) = $135.
Note that 1.00($150) = $150 (full price)
and that 0.10($150) = $15 (discount)
and that (0.90)($150 = $135 (the fastest way to calculate the final (sale) price.
For this case, you must use the given expression, taking into account that:
n = number of days.
We have then that for day 21, n = 21.
Substituting we have:
a21 = 100 + (21-1) * 4
a21 = 180
Answer:
she sprints 180 yards on day 21
Answer:f ( x - 1 ) = 3x² - 5x - 7
Step-by-step explanation:
Answer:
0.249
Step-by-step explanation:
tan(theta) = opposite / adjacent (according to the SOH CAH TOA rule), which effectively means y/x in this case.
So -0.242 / -.970 ≈ 0.249
Other explanation:
On a unit circle,
y = sin(θ)
and
x = cos(θ).
And since, tan = sin/cos, tan(θ) = y/x. You y and x are given, so calculating tan is a matter of dividing them.
