How many significant figures are there in the ff:

Use dimensional analysis with conversion factors to find the number of feet in a 25 kilometer race. Round to the nearest foot. The information you need to form your conversion factor(s) can be found in the following tables: English Measure and Equivalents Length 12 inches (in) =1 foot (ft) 3 feet (ft) -1 yard (yd) 5280 feet (ft) =1 mile (mi) Weight 16 ounces (oz) =1 pound (Ib) 2000 pounds=1 ton (T) Liquid Volume 3 teaspoons (tsp) =1 tablespoon (tbs) 8 fluid ounces (oz)=1 cup 2 cups (c) =1 pint (pt) 2 pints=1 quart (qt) 4 quarts=1 gallon (gal) Time 60 seconds (sec) =1 minute (min) 60 minutes=1 hour (hr) 24 hours=1 day 7 days-1 week 52 weeks=1 year 365 days=1 year Conversions Between Systems Length 2.54cmlin Im-3.28ft 1.61km-1mi Weight 28.39=1oz 2.2lb=1kg Volume 1.06qt=1L 3.79L-1gal Part: 0/3 Part 1 of 3 (a) How many conversion factors will be needed to find the number of feet in a 25 kilometer race?

V 3= 3. where B is the area of the base and h is the height. Find the volume of this pyramid in cubic meters. (1 acre = 43,560 ft) %3D m3 (b) What If? If the height of the pyramid were increased to 509 ft and the height to base area ratio of the pyramid were kept constant, by what percentage would the volume of the pyramid increase?

The area of a triangle is given by the formula  A = 1/2 bh,  where A is the area, b is the length of the base, and h is the triangle's height. If a triangle has a base 6 meters long and a height twice the length of the base, find its area. Because b is given to be _______ meters long, substitute _____  for b in the given formula for the area of a triangle. A=1/2bh A=1/2 ( ? )h

How many significant figures are there in (a) 0.0210, (b) 5.060, (c) 7.10 * 10-4,(d) 1.0 * 105?

If you get 8 hours of sleep at night, how many seconds is that? Solve this using dimensional analysis

(a) A pyramid has a height of 465 ft and its base covers an area of 12.0 acres (see figure below). The volume of a pyramid is given by the expression V = 1 3 -Bh, where B is the area of the base and h is the height. Find the volume of this pyramid in cubic meters. (1 acre = 43,560 ft²) 2294276.22 m³ (b) What If? If the height of the pyramid were increased to 520 ft and the height to base area ratio of the pyramid were kept constant, by what percentage would the volume of the pyramid increase? 99.95 X %

Using a ruler, you measure the length of a rectangle to be 12.75 cm and the width to be 3.64 cm. Calculate the area of this rectangle and include the correct number of significant figures.

The density of an object is defined as its mass divided by itsvolume. Suppose a rock’s mass and volume are measured tobe 6 g and 2.8325cm3  .To the correct number of significantfigures, determine the rock’s density (mass /volume).

Since 0.254 m = 25.4 cm = 254 mm, we could conclude that unit conversions within the metric units of length can be accomplished by simply shifting the ______ the appropriate number of places.