Answer:
i would go for the first one but im not entirely sure
i suggest you wait to see other people's answers
Formula: Area = length * width
Substitute in what you know: 42 = length * 6
Divide both sides by 6 to get the length: length = 7
Formula: Perimeter = 2 (length + width)
Substitute in what you know: P= 2 (7+6)
Solve: Perimeter = 26 ft
First one
20=n/5+10
minus 10 both sides
10=n/5
times 5 both sides
50=n
2.
hmm
expand
p(x)=2x^2+5x+3-3x-3n
p(x)=2x^2+2x+3-3n
it looks like the coefients of the x terms are divisble by 2
because
if we have
p(x)=2(something)
the p(x) is divisible by 2
therefor that factor is 2 or -2
find what value of n works
so
3-3n=a multipule of 2
we are given
-3,-2,0,2
try each
3-3(-3)=3+9=12, that's divisble by 2
3-3(-2)=3+6=9, that's not divisible by 2
3-3(0)=3, that's not divisble by 2
3-3(2)=3-6=3, that's not divisble by 2
the onnly one that woks is when n=-3
answer is A
so you for sure cross off the 1st and 3rd problem off and if you choose the last one your answer would be in th left side of the y axis so it the 2nd answer
Answer:
66.4
Step-by-step explanation:
Apply trignometric ratio
![\cos( \gamma ) = \frac{adj \: side}{hypotenuse} \\ \cos( \gamma ) = \frac{6}{15} \\ \gamma = \cos ^{ - 1} ( \frac{6}{15} ) \\ \gamma = 66.4](https://tex.z-dn.net/?f=%20%5Ccos%28%20%5Cgamma%20%29%20%20%3D%20%20%5Cfrac%7Badj%20%5C%3A%20side%7D%7Bhypotenuse%7D%20%20%5C%5C%20%20%5Ccos%28%20%5Cgamma%20%29%20%20%3D%20%20%5Cfrac%7B6%7D%7B15%7D%20%20%5C%5C%20%20%20%5Cgamma%20%20%3D%20%20%5Ccos%20%20%5E%7B%20-%201%7D%20%20%28%20%5Cfrac%7B6%7D%7B15%7D%20%29%20%20%5C%5C%20%20%5Cgamma%20%20%3D%2066.4)