So if you look at this you will see that 60 - 67 bar has the highest frequency and
30-67 also has the highest frequency if you look at more data. Turn it sideways and you'll see a stem and leaf plot. A quick way to show frequency without messing with the histogram. Either one will show frequency.
15
25
30 32 36
45 48
56
60 61 65 67
75
80 86
90 90
<span>Mary ran the 5 kilometre race in 45 minutes.
45 minutes = 3/4 of an hour
This means that her speed is
S/t=5/(3/4)=20/3 = 6+2/3 (km / hour)
</span><span>Melanie ran the 2 kilometre race in 17 minutes.
</span><span>17 minutes = 17/60 of an hour
</span><span>This means that her speed is
</span>S/t=2/(17/60)=120/17= 7+1/17 <span>(km / hour)
</span>So, Melanie is faster than Mary.
Answer:
Either: 1 neg, 3 pos, 0 imaginary; 1 neg, 1 pos, 2 imaginary
Step-by-step explanation:
Look for the positive possibilities first. Count the numbe of sign changes then subtract 2, if possible, as many times as you can.
There are 3 sign changes. So the possible positive roots are either 3 or 1.
Now look for the negative possibilities. Replace each x with a -x and then count the sign changes. Replacing with -x's gives you this polynomial:
There is only one sign change here, so the possible negative roots is 1. Start with the negative roots to find the possible combinations of positive, negative, and imaginary, since there is only 1.
- 1 1
+ 3 1
i 0 2
Since this is a 4th degree, the number of roots we have has to add up to equal 4.
You have write a fraction from the figure.
In the numerator you have write the total of shaded boxes (in the second figure: 6) and in the denominator you have to write the total of boxes ( in the second figure: 10)
So the answer is 6/10 and this makes sense because this represents the same fraction from first fraction