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Dima020 [189]
3 years ago
13

A telephone plan charges a regular monthly amount plus charges for the number of minutes of use (x) as shown in the equation y =

0.28x + 65. What are the slope and y-intercept? HELP
Mathematics
2 answers:
Brut [27]3 years ago
5 0

Answer:

slope: .28 y-int: 65

because y=mx+b m is slope and b is the y intercept

In-s [12.5K]3 years ago
4 0

Answer:

Slope: 0.28

y-intercept: (0,65)

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At Tech Express, 40% of the customers purchases small coffee and 60% purchases medium. Of those customers purchasing small coffe
Dvinal [7]

Answer and explanation:

Given : At Tech Express, 40% of the customers purchases small coffee and 60% purchases medium. Of those customers purchasing small coffee, 30% prefer decaf. Of those purchasing medium coffee, 50% prefer decaf.

Let A_1 customer purchase small coffee.

i.e. P(A_1)=40\%=0.4

A_2 customer purchase medium coffee.

i.e. P(A_2)=60\%=0.6

Let B be the customer purchase prefer decaf.

So, P(B|A_1)=30\%=0.3

P(B|A_2)=50\%=0.5

(a) What is the probability that the next customer will request medium and decaf coffee?

i.e. P(A_2\cap B)=P(A_2)\times P(B|A_2)

P(A_2\cap B)=0.6\times 0.5

P(A_2\cap B)=0.3

(b) What is the probability that the next customer prefers decaf?

i.e. P(B)=P(A_1\cap B)+P(A_2\cap B)

P(B)=P(A_1)\times P(B|A_1)+P(A_2)\times P(B|A_2)

P(B)=0.4\times 0.3+0.6\times 0.5

P(B)=0.12+0.3

P(B)=0.42

(c) If the next customer prefers decaf, what is the probability that small is requested?

i.e. P(A_1|B)=\frac{P(A_1\cap B)}{P(B)}

P(A_1|B)=\frac{0.12}{0.42}

P(A_1|B)=0.28

3 0
3 years ago
Help me..............
Ira Lisetskai [31]
V = <span>πr^2h
so
r^2 = V/(</span><span>πh)
r = </span>√V/(πh)
r = √(Vπh) / πh

answer is D. last one
r = √(Vπh) / πh

7 0
3 years ago
Which is NOT a zero of the following function?<br><br> f(x)=x3+3x2−x−3<br> -3<br> 3<br> 1<br> -1
OlgaM077 [116]
Oeneiqsbodnwbdisnisnissjaibdosne no wnsnofenifnksdbkjnijjreb djjdnsiind didn’t Bonn j j njjkoodBowie’s and sike did wow sis w sis. Ssijwheisjnxxur. Did sis sis oa dispatch. Owns down sksksk is the answer:))))
6 0
3 years ago
Solve |p+8| over 2 =5
gayaneshka [121]

Answer:

p = 2 or p = - 18

Step-by-step explanation:

given \frac{|p+8|}{2} = 5 ( multiply both sides by 2 )

| p + 8 | = 10

The expression inside the absolute value can be positive or negative

that is p + 8 = ± 10

p + 8 = 10 ⇒ p = 10 - 8 = 2

p + 8 = - 10 ⇒ p = - 10 - 8 = - 18


8 0
3 years ago
Read 2 more answers
At a construction job for a mansion there are 37 painters. Of these painters, 67.6% of them paint the interior of the mansion. H
Inessa05 [86]
This is a relatively easy question to answer. You want to find 67.6% OF 37 mean you need to multiply. 37*0.676≈25. There should be 25 painters painting the interior.
3 0
4 years ago
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