Solve the right triangle. Round decimal answers to the nearest tenth.

Step-by-step explanation:

take angle A as reference angle

using cos rule

cos A = adjacent/hypotenuse

cos A =10/15

cos A =0.66

A=48.194

A=48.2

angle A + angle B + angle C =180 degree (being sum of interior angles of a triangle)

48.2 + angle B + 90 =180

138.2 + angle B =180

angle B =180-138.7

angle B =41.8

for BC

using pythagoras theorem

a^2 + b^2 = c^2

AC^2 + BC^2 = AB^2

10^2 + BC^2 = 15^2

100 + BC^2 = 225

BC^2 = 225-100

BC^2 = 125

BC=5

BC=11.2

c-4 is the final answer! : )

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.