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Lelu [443]
3 years ago
9

Change to standard form. Please help, ty! Will mark brainliest!

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
7 0

Step-by-step explanation:

6. 7x + 7y = -11

7. -1x + 8y = 12

8. 9x + 11y = -7

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Find each value of the five-number summary for this set of data. [Note: Type your answers as numbers. Do not round.] 46, 19, 38,
frozen [14]

Answer:

Maximum : 51

Minimum: 12

Median: 38

Lower quartile: 19

Upper quartile: 46

Step-by-step explanation:

To answer this question, we first order the data from largest to smallest:

46, 19, 38, 27, 12, 38, 51

12, 19, 27, 38, 38, 46, 51

It can be seen that the maximum value is:

51

The minimum value is

12

Let's call N the amount of data.

To calculate the quartiles we use the following formula:

Q_1 = X_{\frac{1}{4}(N + 1)}

So:

Q_1 = X_{\frac{1}{4}(7 + 1)}

Q_1 = X_2

Where X_2 is the data number 2.

Q1 = 19

As the number of data is imapar, then, the median is the central data:

12, 19, 27, {38}, 38, 46, 51

Median = 38

Finally:

Q_3 = X_ {\frac{3}{4}(n + 1)}\\\\Q_3 = X_ {6}

Where X_6 represents the data number 6

Q_3 = 46

4 0
3 years ago
Which graph represents the equation y = 2x + 1?
Alik [6]

Answer:

B, the second one.

Step-by-step explanation:

Take the equation, y=2x+1. 1 is the y-intercept, so that automatically eliminates some potential answer choices. Your slope is 2/1,  so you would use rise over run to find the correct answer choice.

8 0
3 years ago
0.1x + 9 ≤ 45 what is x?
soldi70 [24.7K]
Hi Robles928518, 

0,1x + 9 ≤ 45
0,1x ≤ 45 - 9
0,1x ≤ 36
x ≤ 360

x ∈ ] - ∞ ; 360 ]
5 0
3 years ago
Read 2 more answers
Gisela is putting her 35 CD into categories. She has 11 that are pop music, and she has 3 times as many rock CDs as she has clas
Sav [38]
R + c=24
r=3c
3c+c=24
x=6
So there are 18 rock CDs
5 0
3 years ago
223x12 please tell me I'm in my last question and dieing.
svlad2 [7]

Answer:

2,676

Step-by-step explanation:

2,676=223x12

7 0
3 years ago
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