840 = 1×840=2×420 = 3×280 = 4×210 = 5×168 = 6×140 = 7×120 = 8×105
4220=1×4220 = 2×2110 = 4×1055 = 5×844
2840 = 1×2840 = 2×1420 = 4 × 710 = 5 × 568 = 8 × 355
Answer:
cos(71)
Step-by-step explanation:
Since 19° is less than 90, we can express this in terms of confunction.
sin(θ) = cos(90-θ)
sin(19) = cos(90-19)
sin(19) = cos(71)
10*10*10*10 = 10,000.
Because you can use either of then digits for each space.
Also, you can see that the valid numbers are from 0000 to 9999 = 9999 + 1 = 10,000 numbers.
Step-by-step explanation:
• 5X + 2Y = 48
• 2Y = 48 - 5X
let's use this and replace it on the second equation
• 3X + 2Y = 32
• 3X + 48 - 5X = 32
• 3X - 5X = 32 - 48
• -2X = -16
• X = 8
now use the X value we found to find the Y
• 5X + 2Y = 48
• 5*8 + 2Y = 48
• 40 + 2Y = 48
• 2Y = 48-40
• Y = 8/2
• Y = 4
A: x = $8, y = $4