Answer:
7. Height = 21 in
8. Height = 13 cm or 130 mm
Step-by-step explanation:
7.
½ × 5 × height = 52.5
height = 21 in
8.
23 mm ÷ 10 = 2.3 cm
½ × 2.3 × height = 14.95
height = 13
15400=1200 (1+0.04)^t
Solve for t
T=log(15,400÷1,200)÷log(1+0.04)
T=65 years
All angles are 90 degrees, which cancels out a kite and a rhombus, leaving you with two options (rectangle or square). Using Pythagoras' theorem, you can work out that all sides are also of equal length, which means this shape is a square :)
His percent error was by .2 of a second, so we can do
to get our answer. After dividing, you should have got around .0869. You can convert this to a decimal by moving the decimal spot 2 places to the right to get 8%.
8% is your answer.
Take the -3/5 and add it to 1/30 which would equal 19/30, so x= 19/30