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sweet-ann [11.9K]
3 years ago
7

Z - 3( z + 2 ) = -6 - 2z

Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
8 0

Answer:

0

Step-by-step explanation:

just multiply and bring the numbers to the other sides and both equal 0

Arlecino [84]3 years ago
3 0

Answer: depends (read explanation)

Either 0=0 (doubt) or:

Z= -3

Step-by-step explanation:

1.Assuming that whole line is the equation:

Group like terms. Put all z terms on one side and normal numbers on the other.

There are brackets so remove them first.

Z-3z-6=-6-2z

-2z+2z=-6+6

0=0

2. If you started the question already and got to -6-2z=0:

-6=2z

Z=-6/2

Z=-3

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A Statistics class has an enrollment of 300. Out of these, 95 are taking the Actuarial Statistics major, 120 are Data Science ma
AfilCa [17]

Answer:

0.2833 = 28.33% probability that a student in the class chosen at random is neither an Actuarial Statistics nor a Data Science major

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this question, we have that:

There are 300 students.

80 + 5 = 85 are not Actuarial statistics or data science majors. So

\frac{85}{300} = 0.2833

0.2833 = 28.33% probability that a student in the class chosen at random is neither an Actuarial Statistics nor a Data Science major

4 0
2 years ago
What percentage of 40 is 8?​
Firlakuza [10]

Answer:

20%

Step-by-step explanation:

6 0
2 years ago
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F(x + 1) = 3x - 7<br> f(x) = ?<br> Cevabi kitabda=3x-10<br> Nasil yapmiş kitabda
lina2011 [118]

Answer:

<h2>f(x) = 3x + 4</h2>

Step-by-step explanation:

f(x + 1) = 3x - 7

f(x) = f(x + 1 - 1) = 3(x - 1) + 7 = 3x - 3 + 7 = 3x + 4

Check

f(x) = 3x + 4

f(x + 1) = 3(x + 1) + 4 = 3x + 3 + 4 = 3x + 7 CORRECT

8 0
3 years ago
15 + (5-x)/x=30 solve for x
elixir [45]

Answer:

5/16

Step-by-step explanation:

15+(5-x)/x=30

1) Subtract 15 from both sides:

(5-x)/x=15

2) Multiply both sides by x:

5-x=15x

3) Add x to both sides:

16x=5

4) Divide both sides by 16:

x=5/16

8 0
3 years ago
Find an equation of the line having slope -2 that passes through the point (1, 5)
Alenkasestr [34]
Slope of -2, (1,5)

y = mx + b
slope(m) = -2
(1,5)...x = 1 and y = 5
now we sub and find b, the y int
5 = -2(1) + b
5 = -2 + b
5 + 2 = b
7 = b
so ur equation is : y = -2x + 7

The approximation method used to estimate a point between 2 given points is called linear interpolation. The approximation method used to estimate a point that does not lie between 2 given points is called linear extrapolation.A linear function has the form f(x) = mx + b. Its graph is a line that has slope m and y intercept at (0,b).

8 0
3 years ago
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