Answer:
2(5x-3y-1)
Step-by-step explanation:
perimeter of a rectangle formula:
2l+2w
l=length(2x-3y)5x
w=width(3x-1)
2(2x-3y)+2(3x-1)
4x-6y+6x-2
10x-6y-2
2) all of these numbers have a gcf of 2 so lets divide this equation by 2:
2(5x-3y-1)
hope this helps!
Answer:
(a) 0.873 (b) 0.007 (c) 0.715 (d) 0.277 (e) 1.25 and 1.09
Step-by-step explanation:
The probability that the random variable X takes the value x is given by P(X=x) =
. Then,
(a) ![P(X\leq) = (25C0)(0.05^0)(0.95^{25}) + (25C1)(0.05^1)(0.95^{24}) + (25C2)(0.05^2)(0.95^{23})= 0.873](https://tex.z-dn.net/?f=P%28X%5Cleq%29%20%3D%20%2825C0%29%280.05%5E0%29%280.95%5E%7B25%7D%29%20%2B%20%2825C1%29%280.05%5E1%29%280.95%5E%7B24%7D%29%20%2B%20%2825C2%29%280.05%5E2%29%280.95%5E%7B23%7D%29%3D%20%200.873)
(b) ![P(X\geq5) = 1-P(X\leq4) = 1 - (0.873 + (25C3)(0.05^3)(0.95^{22}) + (25C4)(0.05^4)(0.95^{21})) = 1 - (0.873 + 0.12) = 0.007](https://tex.z-dn.net/?f=P%28X%5Cgeq5%29%20%3D%201-P%28X%5Cleq4%29%20%3D%201%20-%20%280.873%20%2B%20%2825C3%29%280.05%5E3%29%280.95%5E%7B22%7D%29%20%2B%20%2825C4%29%280.05%5E4%29%280.95%5E%7B21%7D%29%29%20%3D%201%20-%20%280.873%20%2B%200.12%29%20%3D%200.007)
(c) ![P(1\leqX\leq4) = (25C1)(0.05^1)(0.95^{24}) + (25C2)(0.05^2)(0.95^{23}) + (25C3)(0.05^3)(0.95^{22}) + (25C4)(0.05^4)(0.95^{21}) = 0.715](https://tex.z-dn.net/?f=P%281%5CleqX%5Cleq4%29%20%3D%20%2825C1%29%280.05%5E1%29%280.95%5E%7B24%7D%29%20%2B%20%2825C2%29%280.05%5E2%29%280.95%5E%7B23%7D%29%20%2B%20%2825C3%29%280.05%5E3%29%280.95%5E%7B22%7D%29%20%2B%20%2825C4%29%280.05%5E4%29%280.95%5E%7B21%7D%29%20%3D%200.715)
(d)
(e) E(X) = np = (25)(0.05) = 1.25 and ![Sd(X) = \sqrt{Var(X)} = \sqrt{np(1-p)} = 1.09](https://tex.z-dn.net/?f=Sd%28X%29%20%3D%20%5Csqrt%7BVar%28X%29%7D%20%3D%20%5Csqrt%7Bnp%281-p%29%7D%20%3D%201.09)
Here is your answer! The coefficient of xy is 6. To solve this problem, you need to multiply your two polynomials together. I used the FOIL Method- multiply the First two, the Outside two, the Inside two, and the Last two. You can see how I did it on the picture attached. Next, the answer that you get as a result from FOILing is your polynomial. If you look at the number before xy, that is the coefficient. A coefficient is a number that is right before and attached to a variable. I hope this helps you! :))
Answer:
D
Step-by-step explanation:
not good at explaining i just think its D