On saturday, siena drove a total of 120 miles in 2 hours. on sunday, she drove a total of 110 miles in 2 hours.

which explanation correctly describes a way to calculate how much faster siena drove per hour on saturday?

a.

step 1 divide: 120 ÷ 2.
step 2 divide: 110 ÷ 2
step 3 add the two quotients.

b.

step 1 multiply: 120 × 2
step 2 multiply: 110 × 2
step 3 add the two products.

c.

step 1 multiply: 120 × 2
step 2 multiply: 110 × 2
step 3 subtract the two products.

d.

step 1 divide: 120 ÷ 2.
step 2 divide: 110 ÷ 2
step 3 subtract the two quotients.

Given:
Saturday : 120 miles in 2 hours
Sunday : 110 miles in 2 hours

120 / 2 = 60 mph
110 / 2 = 55 mph

60 mph - 55 mph = 5 mph faster on Saturday.

D. 
Step 1 Divide: 120 ÷ 2.
Step 2 Divide: 110 ÷ 2
Step 3 Subtract the two quotients.

Intersecting secant-tangent theorem states that if a tangent segment and a secant segment are drawn to a circle from an exterior point, then the square of the measure of the tangent segment is equal to the product of the measures of the secant segment and its external secant segment.so to break it down: 1. pq acts as the tangent and ps as the secant with an intersection at p.sr = 21rp = 3x + 3pq = 4x + 4following to equation: tangent squared = the two segments multiplied by each otherso (4x + 4) ^ 2 = (3x + 3) • (21) simplifies to 16x^2 - 31x - 47 = 0 or (16x - 47)(x + 1) x = -1 or x = 47/162. pq acts as the tangent and ps as the secant with an intersection at p (again! )sr = 16rp = xpq = 15(15) ^ 2 = 16 • x225 = 16xx = 225/163. the interesting chords are proportional to each other so a ratio is possible to set up: ap dp 10 3 + x = = —— = pc pb 8 xcross multiple to get 10x = (3 + x)(8)x = 12