Question

The base and height of a triangle are consecutive odd integers, and the height exceeds the base. If the base is b, find the area of the triangle.

A. b(b+2) / 2

B. b(b+1) / 2

C. b(b+4) / 2

D. (b+1)(b+3) / 2

At 2:00 PM, a train left a station traveling east at R mi/h. At 3:00 PM, a second train headed west from the station at a rate of 20 mi/h faster than the first.

A. R mi/h

B. (R+20) mi/h

C. (R−20) mi/h

D. (2R+20) mi/h

Seth sold 16 tickets to a school play. Of these, AA were adults’ tickets at $3.75 each. The rest were children’s tickets at $2.59 each.

A. 16A+3.75(16−A)

B. 16A+2.59A

C. 3.75A+2.59(16−A)

D. 3.75A+2.59A

Answer 1

To find the area of a triangle with a base of 166 mm and a height of 930.0 mm, substitute the values into the formula for the area of a triangle and express the answer to the proper number of significant figures.

Step-by-step explanation:

The formula for the area of a triangle is 1/2 × base × height. To find the area of a triangle with a base of 166 mm and a height of 930.0 mm, we can substitute these values into the formula:

Area = 1/2 × 166 mm × 930.0 mm

Area = 1/2 × 154380 mm²

Area = 77190 mm²

We express the answer to the proper number of significant figures, which is three, so the area of the triangle is 77190 mm².