Answer:
1) 2/3
2) 1/2
3) 4/5
4) 3/4
Step-by-step explanation:
4/6 can be divided by 2 to get 2/3 in its simplest
2/4 can be divided by 2 to get 1/2 in its simplest
12/15 can be divided by 3 to get 4/5 in its simplest
6/8 can be divided by 2 to get 3/4 in its simplest
Answer:
The probability that a randomly selected high school senior's score on mathematics part of SAT will be
(a) more than 675 is 0.0401
(b)between 450 and 675 is 0.6514
Step-by-step explanation:
Mean of Sat =
Standard deviation = 
We will use z score over here
What is the probability that a randomly selected high school senior's score on mathe- matics part of SAT will be
(a) more than 675?
P(X>675)
Z=1.75
P(X>675)=1-P(X<675)=1-0.9599=0.0401
b)between 450 and 675?
P(450<X<675)
At x = 675
Z=1.75
At x = 450
Z=-0.5
P(450<X<675)=0.9599-0.3085=0.6514
Hence the probability that a randomly selected high school senior's score on mathematics part of SAT will be
(a) more than 675 is 0.0401
(b)between 450 and 675 is 0.6514
Answer: 188
Add: 47 + 47 + 47 + 47
Well, there are a few ways to go about this problem. The easiest would be to compare the rates.
Nola did -200 feet in 10 min so we have -200 / 10
Next, Nola did -300 in 20 mins so we have -300/10
Now that we have our slope/rate we can compare the two.
-200 / 10 = -20 ft/min
-300 / 20 = -15 ft/min
As we can see, Nola walked down during the first portion at a faster rate, which she went down -20 ft/min
Area= width times height
Since the area is given in the question you would need to find the width or height. Since this is a square, all sides have he same width/height. So in order to find the answer just take the square root of the area.
Square root of 169= 13
Answer: 13m
