Answer:
x=0 y=-1
Step-by-step explanation:
16x-10y=10
-8x-6y=6 *2 -16x-12y=12
16x-10y=10
-16x-12y=12
-22y=22 Add it together
y=-1
-8x-(6*(-1))=6
-8x+6=6
x=0
Answer:
22/24
Step-by-step explanation:
Answer:
(a) (b)
Step-by-step explanation:
GIVEN: Suppose that two cards are randomly selected from a standard card deck.
TO FIND: (a) What is the probability that the first card is a club and the second card is a club if the sampling is done without replacement? (b) What is the probability that the first card is a club and the second card is a club if the sampling is done with replacement.
SOLUTION:
(a)
Probability that first card is club
As sampling is done without replacement.
probability that second card is club
Probability that first card is club and second card is club
(b)
Probability that first card is club
As sampling is done with replacement.
probability that second card is club
Probability that first card is club and second card is club
Answer:
(x+6)2
Step-by-step explanation:1
What two numbers sum up to the middle term (6), and have a product of the last term (36)?
After some trial and error, we arrive at 6 and 6, which means we can factor this as
(x+6)(x+6) or (x+6)2
Another way we could have approached this is that we see that the leading term and the last term are both perfect squares.
With this in mind, we could rewrite the expression as
(x)2+12x+(6)2
Now, it becomes a little more clearer that we can factor this as
(x+6)2
Answer:
(x-6)^2
Step-by-step explanation:
Hope this helped
Answer:
Step-by-step explanation:
Slope:
−1
y-intercept:
23
Answer:
0.0189
Step-by-step explanation:
We solve for this using Newton's Law of cooling.
The formula for Newton's Law of cooling =
T −Ts = (To−Ts)e^-kt
T = Temperature after cooling
To = Initial temperature
Ts = Room temperature
k = constant
t = time = 2 mins
(200 - 70) = (205 - 70)e^-2k
130 = 135e^-2t
e^-2k= 130/135
k = In(130/135)/-2
k = 0.018870164
Approximately to 4 decimal places = 0.0189
Therefore, the value of k = 0.0189