An ounce of cinnamon sticks costs $3.25 and the cocoa costs $0.75 per ounce. What is the combined cost of 1.6 ounces of cinnamon sticks and 9.4 ounces of cocoa?

$12.25

Step-by-step explanation:

1.6 ounces of cinnamon sticks and 9.4 ounces of cocoa. The equation for this would be 3.25s + 0.75c = t, where s is the amount of cinnamon sticks, c is the amount of cocoa, and t is the total price.

    3.25s + 0.75c = t

    3.25(1.6) + 0.75(9.4) = t

    5.2 + 7.05 = t

    12.25 = t

The total price is $12.25.

answer: a and c are correct

step-by-step explanation:

the +5 is the vertical translation

the added negative symbol in front is the reflection over the y-axis

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629