What is the value of K?
What is the value of K? - 1

Answers

Answer 1
Answer: The value of K is 10

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What is 160 divided by 18​

Answers

Answer:

80/9 or 8.8888...

Step-by-step explanation:

Answer:

8.88888888889

160 divided by 18 is 8.88888888889.

Short for 8.889

Find the sum of the two polynomials (2x7−5x6−7x5+8)+(9x7−2x6−2x5−7)

Answers

Here you go! Hope this helps

Which of the following equations are the correct answer? Please help due tomorrow

Answers

(3,2), (-1,-4)

Slope = (y2-y1)/(x2-x1)= (2+4)/(3+1) =3/2
(y-y1) = 3/2(x-x1)
(y-2)=3/2(x-3)
(y+4)=3/2(x+1)
Correct answer: A,E

SHOW WORK! PLEASE HELP ASAP IF YOU CAN :(A stack of index cards is 3/4 of an inch tall. If each card is 3/160 of an inch thick, how many index cards are in the stack?

Answers

Answer:

so what you have to do first is simplify into variables

S=A 3/4 stack of index cards

C= 3/160

first you can do this with a calculator, divide 3/4 of an inch by 3/160 of an inch.

3/4÷3/160=40

Here is my work shown :)

Male the division into multiplication and swap the numbers in 3/160 to 160/3

3/4 x 160/3

For fraction multiplication, multiply the numerators and then multiply the demoninators to get

3 x 160/4 x 3= 480/12

Divide 480 by 12 which is forty

there you go :) sorry if the answers are messed up and there are spelling errors. but in conclusion the answer is 40

By the way, awesome pfp, I just started watching Toilet Bound Hanako earlier tonight and it's very good so far

PhD’s in Engineering. The National Science Foundation reports that 70% of the U.S. graduate students who earn PhD degrees in engineering are foreign nationals. Consider the number Y of foreign students in a random sample of 25 engineering students who recently earned their PhD.a) Find the probability that there are exactly 10 foreign students in your sample – use equation for thisb) Find the probability that there are less than or equal to 5 foreign students in your sample andc) Find the mean and standard deviation for Y

Answers

Answer:

a) P(Y=10)=0.0013

b) P(Y≤5)=0.00000035

c) Mean = 17.5

S.D. = 2.29

Step-by-step explanation:

We can model this as a binomial random variable with n=25 and p=0.7.

The probability that k students from the sample are foreign students can be calculated as:

P(y=k) = \dbinom{n}{k} p^(k)(1-p)^(n-k)\n\n\nP(y=k) = \dbinom{25}{k} 0.7^(k) 0.3^(25-k)\n\n\n

a) Then, for Y=10, the probability is:

P(y=10) = \dbinom{25}{10} p^(10)(1-p)^(15)=3268760*0.0282475249*0.0000000143\n\n\nP(y=10)=0.0013\n\n\n

b) We have to calculate the probability P(Y≤5)

P(y\leq5)=P(Y=0)+P(Y=1)+...+P(Y=5)\n\n\nP(x=0) = \dbinom{25}{0} p^(0)(1-p)^(25)=1*1*0=0\n\n\nP(y=1) = \dbinom{25}{1} p^(1)(1-p)^(24)=25*0.7*0=0\n\n\nP(y=2) = \dbinom{25}{2} p^(2)(1-p)^(23)=300*0.49*0=0.0000000001\n\n\nP(y=3) = \dbinom{25}{3} p^(3)(1-p)^(22)=2300*0.343*0=0.0000000025\n\n\nP(y=4) = \dbinom{25}{4} p^(4)(1-p)^(21)=12650*0.2401*0=0.0000000318\n\n\nP(y=5) = \dbinom{25}{5} p^(5)(1-p)^(20)=53130*0.16807*0=0.0000003114\n\n\n\n

P(y\leq5)=0+0+0.0000000001+0.0000000025+0.0000000318+0.00000031\n\nP(y\leq5)= 0.00000035

c) The mean and standard deviation for this binomial distribution can be calculated as:

\mu=np=25\cdot 0.7=17.5\n\n\sigma=√(np(1-p))=√(25\cdot0.7\cdot0.3)=√(5.25)=2.29

The location of Sonia's school and home are plotted on the coordinateplane shown. What are the coordinates (x, y) of her school?

Answers

The coordinates of the school is (8,2)
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