Answer:
b
20
10
Step-by-step explanation:
Well... hell, let's just convert them all with the same denominator then
hmmm let's see, we have the denominators of 8,11 and 3
so... we'll multiply the 5/8 times (11*3) or 33
and then we'll multiply 7/11 times (8*3) or 24
and then we'll multiply 2/3 times (8 * 11)
notice, we're simply using the other's denominator's product, to multiply the fractions... anyhow... let's check
First magnitude...
d^2=5^2+3^2
d^2=25+9
d^2=34
d=√34
now for direction...
tanα=y/x
α=arctan(y/x) and we know y=5 and x=3 so
α=arctan(5/3)
α≈59.03624
So the vector of her ride is:
√34, 59.03624° or if you prefer...
√34, 59°2'10" (in standard angle position)
A decimal point. Im guessing you meant to say tenths instead of tens
To make it easier say the number out loud. 26.2. Twenty six and two tenths. You could also say twenty six point two but the first way to say it makes it easier to write on paper though.
Twenty six and two tenths can also be reduced to twenty six and one fifth.