Answer: x = pi
sin²x - 2cos x - 2 = 0
⇔ 1 - cos²x - 2cos x - 2 = 0
⇔ cos²x + 2cos x + 1 = 0
⇔ (cos x + 1)² = 0
⇒ cos x + 1 = 0
⇔ cos x = -1
⇒ x = pi + k2pi
because 0 ≤ x < 2pi
=> x = pi
Step-by-step explanation:
Answer:
24 miles
Step-by-step explanation:
12 x 8 = 96
1 in = 0.25
96 in = 24
Answer:
q1
Step-by-step explanation:
Answer:
The correct answer is Pete saves $2.10 by buying bulbs in packages of 3 for $6.39 each.
Step-by-step explanation:
Pete can buy daffodil bulbs in packages of 3 for $6.39 or in packages of 2 for $4.40.
He needs to buy 30 bulbs at a better price.
Money spent by buying bulbs in packs of 3 = 10 × 6.39 = $63.90.
Money spent by buying bulbs in packs of 2 = 15 × 4.40 = $66.
Money saved if bought in packs of 3 = 66 - 63.90 = $ 2.10.
Thus Pete should buy 30 daffodil bulbs in packages of 3 and save $2.10.
Answer:
The graph on the right.
Step-by-step explanation:
The graph has a higher unit rate because it's slope is 48.5, as opposed to the equation on the left which has a slope of 23.5