Answer:
a or d
Step-by-step explanation:
Answer:
B
C
Step-by-step explanation:
Convert 30% to a decimal:
30% = 0.30
Check each item by multiplying the original price by 0.30 (the 30% off sale). Subtract the product from the original price. If the sale price is the same, the pricing is correct. If they are different, the pricing is incorrect.
Headphones:
24.50 × 0.30
7.35
24.50 - 7.35
17.15
17.15 = 7.35? Incorrect.
Phone Charger:
29.25 × 0.30
8.775
29.25 - 8.775
20.475
Round to the nearest cent (hundredths place):
20.48
20.48 = 20.48? Correct.
Minitablet:
117.95 × 0.30
35.385
117.95 - 35.385
82.565
Round to the nearest cent:
82.57
82.57 = 82.57? Correct.
Printer:
213.45 × 0.30
64.035
213.45 - 64.035
149.415
Round to the nearest cent:
149.416
149.416 = 207.47? Incorrect.
Flat Screen TV:
376.98 × 0.30
113.094
376.98 - 113.094
263.886
Round to the nearest cent:
263.89
263.89 = 236.89? Incorrect.
Answer:
sin(2x)/cos x = 2sin x*cos x/ cos x = 2 sin x = 2
sin x = 1
x = pi/2
but cos pi/2 = 0
so the given equation is indeterminate for x = pi/2
Step-by-step explanation:
Answer:
k = 13.8
Step-by-step explanation:
y = kx where 'k' is the constant of proportionality
'k' can be found using the same method for finding slope
(82.8-27.6) ÷ (6-2)
55.2 / 4 = 13.8
