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Fittoniya [83]
2 years ago
10

Triangle XYZ is shown on the coordinate plane below:

Mathematics
2 answers:
loris [4]2 years ago
4 0

Answer:

(-4,-5)

Step-by-step explanation:

its correct

Marrrta [24]2 years ago
3 0

Answer:

The correct answer is D

Step-by-step explanation:

Hope this helps!

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Original price: $261.27 Markdown: 72% The sale price is
Alex17521 [72]

Answer: 72% X 261.27 = 188.11

sales price : $261.27 - $188.11 = $73.16

               

3 0
3 years ago
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Twice the sum of a number and seven is eight find the number
pickupchik [31]
<span>twice the sum of a number and seven is 8
2(x+7)=8</span>
7 0
3 years ago
Solve this system of equations by any method.<br> 5x + y = -13<br> 4x + 3y= -17
irga5000 [103]
5x + y = -13.....multiply by -3
4x + 3y = -17
-----------------
-15x - 3y = 39 (result of multiplying by -3)
4x + 3y = -17
-----------------add
-11x = 22
x = -22/11
x = -2

5x + y = -13
5(-2) + y = -13
-10 + y = -13
y = -13 + 10
y = -3

solution (-2,-3)
5 0
3 years ago
Which of the expressions below are equal to 5x + 20y? Select all that apply.
xeze [42]
The correct answers are A and B.
Hope this helps!
8 0
3 years ago
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A random sample of 18 graduates of a certain secretarial school typed an average of 80.6 words per minute with a standard deviat
insens350 [35]

Answer: ( 77.27 , 83.93)

Therefore at 95% confidence/prediction interval is

= ( 77.27 , 83.93)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 80.6 words per minute

Standard deviation r = 7.2

Number of samples n = 18

Confidence interval = 95%

z(at 95% confidence) = 1.96

Substituting the values we have;

80.6+/-1.96(7.2/√18)

80.6+/-1.96(1.697056274847)

80.6 +/- 3.33

= ( 77.27 , 83.93)

Therefore at 95% confidence/prediction interval is

= ( 77.27 , 83.93)

7 0
3 years ago
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