1 mile = 5,280 feet:
9 miles x 5280 feet per mile = 47,520 total feet per hour
1 hour = 3600 seconds.
Divide total feet by seconds per hour:
47,520 feet / 3600 seconds per hour = 13.2 feet per second.
Multiply feet per second by number of seconds for distance traveled:
13.2 feet per second x 15 seconds = 198 total feet.
Answer:
Obtuse
Step-by-step explanation:
square the 2 smaller side lengths. 10^2+11^2= 221. If you square the longer side length, you get 225. 15^=225.
An acute triangle is when the 2 smaller side lengths are greater
A right triangle is when the 2 smaller side lengths are equal
An obtuse triangle is when the 2 smaller side lengths are less.
221 is less than 225, making it obtuse.
M2. A (Estimated Difficulty Level: 3)
<span>Try plugging in some real numbers until you get one of the answers. For example, if you choose 4, then </span>calcu- late<span> 2×4+42 +1 = 25. The answers don’t list 25, so choose another integer to start with. If you choose 5, you’ll get 2 × 5 + 52 + 1 = 36, so the answer is A.</span>
<span>If you are an algebra fiend, you may notice that if the integer is x, then the calculation is 2x+x2+1 = (x+1)2, so the final sum must be the square of an integer. Only answer A is a perfect square.</span>
Answer:
X probability = 0.02
Cumulative frequency at x ( 6 ) = 1
Step-by-step explanation:
X P ( X ) Cf ( X )
1 0.58 0.58
2 0.18 0.58 + 0.18 = 0.76
3 0.10 0.76 + 0.10 = 0.86
4 0.07 0.86 + 0.07 = 0.93
5 0.05 0.93 + 0.05 = 0.98
6 0.02 0.98 + 0.02 = 1
To calculate the speed of each one we proceed as follows:
speed=distance/time
a] Noah's speed:
distance=2.5 miles
time=3/5 hours
speed=(2 1/2)/(3/5)
=(5/2)/(3/5)
=5/2×5/3
=25/6
=4 1/6 mi/hr
Emily's speed
distance=3 3/4 miles
time=5/6 hour
thus
speed=(3 3/4)/(5/6)
=15/4)/(5/6)
=15/4×6/5
=4 1/2 mi/hr
Anna's speed:
distance=3 1/3 miles
time=3/5
speed=(3 1/3)/(3/5
=(10/3)/(3/5)
=10/3×5/3
=5 5/9 mi/hr
Anna was the fastest