Answer:
9/7
Step-by-step explanation:
Z4jshrsursursurwruwurwyrwruw4hwurw
Well from positive y axis Q is situated at 6 units while P is situated at 3 units.
So length of PQ - 6+3 = 9 units.
Rounding up your answer is 10 units
You can't simplify this equation anymore.
Answer:
20 units
Step-by-step explanation:
Initial particle concentration = 80 units
Particles removed each hour = 50% of the remaining particles
To find:
Particle concentration after 2 hours = ?
Solution:
Particles removed in 1 hour = 50% of remaining particles
i.e. Particles removed in 1 hour = 50% of initial concentration
Particles removed in 1 hour = 50% of 80 = 40
Particles removed in next 1 hour = 50% of remaining particles
i.e. Particles removed in next 1 hour = 50% of concentration after 1 hour
Particles removed in next 1 hour = 50% of 40 = 20
Total particles concentration removed in 2 hours = 40 + 20 = 60 units
Therefore, particle concentration after 2 hours = Initial concentration - Total particle concentration removed in 2 hours
= 80 - 60 = <em>20 units</em>
Answer:
Step-by-step explanation:
Surface area is the total area of the surface of an object. A globe is a sphere and the formula for calculating a sphere's surface area is:
The radius (r) of the globe is 28.5 centimeters. Substitute this value into the formula.
Solve the exponent. Multiply the number by itself.
- (28.5 cm)²= 28.5 cm * 28.5 cm = 812.25 cm²
Multiply 4, pi and 812.25 centimeters together.
Round to two decimal place or the hundredth place. The 4 in the thousandth place to the right (10207.03453) tells us to leave the 3 in the hundredth place (10207.0<u>3</u>453).
The surface area of the globe is approximately <u>10,207.03 centimeters squared.</u>
