Answer:
he would have had to run 20 more feet then Juan
Step-by-step explanation:
Answer:
a. n= 1x +7
b. n= 12 + 4x
Step-by-step explanation:
X² <span>+ 11x + 7
because 7 is a prime number, this doesn't factor prettily. you'll want to use the quadratic formula; if you aren't familiar with it, i'd either research it or look it up in your textbook, because it's clunky and not easily understood in this format:
(-b </span>± √((b)² - 4ac))/(2a)
in your equation x² + 11x + 7 ... a = 1, b = 11, and c = 7. what you do is you take the coefficients of every term, then plug it into your equation:
(-11 ± √((11)² - 4(1)(7))/(2(1))
not pretty, i know. but, regardless, you can simplify it:
(-11 ± √((11)² - 4(1)(7))/(2(1))
(-11 ± √(121 - 28))/2
(-11 ± √93)/2
and you can't simplify it further. -11 isn't divisible by 2, and 93 doesn't have a perfect square that you can take out from beneath the radical. the ± plus/minus symbol indicates that you have 2 answers, so you can write them out separately:
(x - (-11 - √93)/2) and (x + (-11 - √93)/2)
they look confusing, but those are your two factors. they can be simplified just slightly by changing the signs in the middle due to the -11:
(x + (11 + √93)/2) (x - (11 - √93)/2)
and how these would read, just in case the formatting is too confusing for you: x plus the fraction 11 + root 93 divided by 2. the 11s and root 93s are your numerator, 2s are your denominator.
Answer:
about like 8 /10
Step-by-step explanation:
Answer:
There are 12 white rats in the cage.
Step-by-step explanation:
3 : 4 The question says there are 16 rats in the cage. Meaning that 16 is the
<u>x4 x4</u> total. Since 4(from the ratio)x4 is 16. You would multiply 4 on both sides.
12 : 16
Meaning there are 12 white rats to 16 total rats.
If you have any additional questions, please feel free to ask in the comments.
