Answer:
f(x)=9x-7
when x=-1
f(-1)=9×-1-7=-9-7=-16
when x=0
f(0)=9×0-7=-7
other are similar to this
The empirical method is the right answer.
Empirical probability is calculated by dividing the number of times an event was seen in your data by the entire sample size. An event's relative frequency is strongly connected to an empirical probability, also known as an experimental probability.
Empirical probability bases its estimation of the likelihood that a specific result will recur on the number of instances of that outcome within a sample set. In short, the empirical method uses relative frequencies to determine probabilities.
Here's another question with an answer similar to this about empirical method:
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E(t) is the elevation Maria is at at t minutes.
The expression to calculate the elevation is 1200 + 40t.
E(t) = 1200 + 40t
E(15) means the elevation Maria is at at time 15 minutes.
E(15) = 1200 + 40(15)
E(15) = 1200 + 600
E(15) = 1800
E(15) = 1800 means that Maria is at an elevation of 1800 ft after 15 minutes.
Answer:
(x+6)(x+2)(x-5)(x-7)
Step-by-step explanation:
step 1: ((((x4)-(4•(x3)))-72x2)+136x)+420
step 2: ((((x4) - 22x3) - 72x2) + 136x) + 420
step 3: Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, 2 and 6
x2 + 2x + 6x + 12
step 4: Add up the first 2 terms, pulling out like factors :
x • (x+2)
Add up the last 2 terms, pulling out common factors :
6 • (x+2)
step 5: Add up the four terms of step 4 :
(x+6) • (x+2)
Which is the desired factorization
<span>Total cost of cashews + Total cost of peanuts = Total cost.
total cost of cashews=$7 * x=7x
total cost of peanuts=$3 * 9=27
total cost=(9+x) * $5=45+5x
7x+27=5x+45
subtract 5x from both sides:
2x+27=45
subtract 27 from both sides:
2x=18
x=9 pounds of cashews</span>
