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grigory [225]
2 years ago
13

HELP ASAP!! Linear Equationsx/7=3A. 21B. 3/7C. 20D. -21​

Mathematics
2 answers:
svlad2 [7]2 years ago
8 0

Answer:

A. 21

Step-by-step explanation:

If you were to place every answer choice with x. The only right one is 21. 21/7=3 is correct.

vredina [299]2 years ago
6 0

Answer:

21

Step-by-step explanation:

put 21 were x is and then divide 21÷7=3

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In a large accounting firm, the proportion of accountants with MBA degrees and at least five years of professional experience is
Rasek [7]

Answer:

The probability that this accountant has an MBA degree or at least five years of professional experience, but not both is 0.3

Step-by-step explanation:

From the given study,

Let A be the event that the accountant has an MBA degree

Let B be the event that the accountant has at least 5 years of professional experience.

P(A) = 0.35

P(A)^C = 1 - P(A)

P(A)^C = 1 - 0.35

P(A)^C = 0.65

P(B)^C = 0.45

P(B) = 1 - P(B)^C

P(B) = 1 - 0.45

P(B) = 0.55

P(A ∩ B ) = 0.75 P(A^C \ \cap  \  B^C)

P(A ∩ B ) = 0.75 [ 1 - P(A ∪ B) ]  because  P(A^C \ \cap  \  B^C)  = P(A \cup B)^C

SO;

P(A ∩ B ) = 0.75 [ 1 - P(A) - P(B) + P(A ∩ B) ]

P(A ∩ B ) = 0.75 [ 1 - 0.35 - 0.55 + P(A ∩ B) ]

P(A ∩ B ) - 0.75  P(A ∩ B) = 0.75 [1 - 0.35 -0.55 ]

0.25  P(A ∩ B) = 0.075

P(A ∩ B) = \dfrac{0.075}{0.25}

P(A ∩ B) = 0.3

The probability that this accountant has an MBA degree or at least five years of professional experience, but not both is: P(A ∪ B ) - P(A ∩ B)

= P(A) + P(B) - 2P( A ∩ B)

= (0.35 + 0.55) - 2(0.3)

= 0.9 - 0.6

= 0.3

∴

The probability that this accountant has an MBA degree or at least five years of professional experience, but not both is 0.3

3 0
2 years ago
Please helo me ASAP!!!
navik [9.2K]

Answer:

17.6

Step-by-step explanation:

Formula= sumfx÷sumf

sumfx= 63×0+34×0+27×1+13×2=53

sumfx=0+0+1+2=3

53÷3= 17.6

final answer =17.6

3 0
2 years ago
Read 2 more answers
For the following​ equation:
Sedbober [7]

Answer:

a. 0

b. x = 1.25

Step-by-step explanation:

The given equation is:

\frac{4}{x}=\frac{1}{4x}+3

a. The denominators are x and 4x. The values that make a denominator zero are:

x=0\\4x=0\\x=0

b. Solving the equation:

\frac{4}{x}=\frac{1}{4x}+3\\\frac{4x}{x}=\frac{x}{4x}+3x\\  3x=4-\frac{1}{4}\\x=\frac{16-1}{4*3} \\ x=1.25

The solution is x = 1.25

4 0
2 years ago
Determine the function’s value when x = −1.
trapecia [35]
The answer is g(-1)=1
3 0
3 years ago
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Evaluate the following expression using the values given: Find -3a2 - b3 + 3c2 - 2b3 if a = 2, b = -1, and c = 3. Numerical Answ
umka2103 [35]


sub values of a, b and c into the equation.

(-3x2x2)-(-1x3)+(3x3x2)-(2x3x2)-(2x-1x3)

(-12)-(-3)+(18)-(12)-(-6)

=3

4 0
3 years ago
Read 2 more answers
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