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arsen [322]
2 years ago
11

Select the correct answer.

Mathematics
1 answer:
Scilla [17]2 years ago
3 0

Answer:

Approximately (2, 1)

See image

Step-by-step explanation:

Rearrange each equation so it is ready to be graphed on an x-y-axis (see image) look for the point where the two lines cross. This is the solution for the system of equations.

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Use a graph to solve this equation.<br> th<br> 2x2–5=-X? + 2x – 1
solong [7]

Answer:

X + 2= 0

X - 4  > 7

-4 + y = 3y + 4 (y - 3)

4 0
2 years ago
The manager went over the sales of mobile phones at the store and found that the mean sale was 45, with a standard deviation of
d1i1m1o1n [39]

The z-score of the sale of mobile phones on that day is 1.75

Step-by-step explanation:

The formula of z-score is z = (x - μ)/σ, where:

  • x is the score
  • μ is the mean
  • σ is the standard deviation

∵ The mean sale was 45

∴ μ = 45

∵ The standard deviation was 4

∴ σ = 4

∵ 52 mobile phones were sold on a particular day

∴ x = 52

To find z-score of the sale of mobile phones on that day substitute the values of x, μ, and σ in the formula of z-score

∵ z=\frac{52-45}{4}

∴ z=\frac{7}{4}

∴ z = 1.75

The z-score of the sale of mobile phones on that day is 1.75

Learn more:

You can learn more about z-score in brainly.com/question/7207785

#LearnwithBrainly

3 0
3 years ago
Solve the inequality and describe the solution set:<br> y-6 ≥ 12
Finger [1]
Y<span>≥18

You want to get the y only on one side of the equation. To get rid of the -6 you  have to add 6 to both sides to even out the equation.

y-6</span><span>≥</span><span>12
 +6 +6
y </span>≥18
3 0
3 years ago
Read 2 more answers
What is the value of a + bc when a = 7, b = 4, and c =8
Bess [88]

Answer:

answer is 39

Step-by-step explanation:

7 + 4*8 = 39

4 0
2 years ago
Read 2 more answers
I have 6 thousands 12 tens 9 hundreds 10 ones and 3 tenths what number am i
mixer [17]

Here let us first write the value of each number:

6 thousands means 6*1000=6000.

9 hundreds means 9*100=900.

12 tens means 12*10 =120

10 ones means 10*1 =10

3 tenths means 3/10 =0.3

Now we just have to add all these values to get the final number.

adding 6000 + 900 +120 +10 +0.3 = 7030.3

So the final number is 7030.3

4 0
3 years ago
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