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belka [17]
3 years ago
11

In a right triangle, the hypotenuse has endpoints P(–3, 2) and Q(1, –3). On a coordinate plane, line P Q has points (negative 3,

2) and (1, negative 3). If R represents the third vertex in the triangle and R is located in the third quadrant, what is the length of PR?
Mathematics
2 answers:
Marina CMI [18]3 years ago
6 0

<u><em>Answer:</em></u>

<u><em>The length of PR is 5 units.</em></u>

<u><em>Step-by-step explanation:</em></u>

<u><em></em></u>

mrs_skeptik [129]3 years ago
4 0

Answer:

The length of PR is 5 units

Step-by-step explanation:

Here, we want to calculate the length of PR

Since PQ is the hypotenuse, it means that the right-angle would be between lines PR and RQ

Also, since R is on the third quadrant, then its coordinates are (-x,-y)

To get the coordinates of R since we know that we need a right angle, we drop a straight vertical line through P and a straight horizontal line through Q

What this mean is that the coordinates of R will take the x-coordinate of the point P and the y-coordinate of the point Q

Hence, we have that the coordinates of the point R is (-3,-3)

Now, we want to calculate the length of PR

PR will be the distance between the points P and R

Mathematically, to get this, we use the distance formula

That will be;

√(y2-y1)^2 + (x2-x1)^2

Thus, we have

√(2-(-3)^2 + (-3-(-3))^2

= √5^2 + 0^2

= √25 = 5 units

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Naddika [18.5K]

Answer:

(f-g)(x)=4x^{4}+2x^3}-2x-4

Step-by-step explanation:

Let f and g be two functions that are defined in the same interval and have the same independent variable. Then, the Subtraction of Function is defined as:

(f-g)(x)=f(x)-g(x)

Let's solve (f-g)(x) with f(x)=5x^{4}+4x^3}+3x^{2}+2x+1 and g(x)=x^{4}+2x^{3}+3x^{2}+4x+5

(f-g)(x)=(5x^{4}+4x^3}+3x^{2}+2x+1)-(x^{4}+2x^{3}+3x^{2}+4x+5)\\(f-g)(x)=5x^{4}+4x^3}+3x^{2}+2x+1-x^{4}-2x^{3}-3x^{2}-4x-5\\(f-g)(x)=4x^{4}+2x^3}-2x-4

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6 0
3 years ago
Evaluate the expression.
Advocard [28]
Hello :)
When y=3
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When y=8
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2(10+2)=24

When y=2
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8 0
3 years ago
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Step-by-step explanation:

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Answer:

Step-by-step explanation:Answer Explanation

Correct answers:

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1. Open Excel, enter the given data in column A, and find the sample mean, x¯, using the AVERAGE function. Thus, the sample mean, rounded to two decimal places, is x¯=251.78.

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3. The margin of error, rounded to two decimal places, is zα/2σn‾√≈10.36. The confidence interval for the population mean has a lower limit of 251.78−10.36=241.42 and an upper limit of 251.78+10.36=262.14.

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6 0
3 years ago
Are (1,1.5) and (12,4) solutions to the equation y=1/4x+5/4
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The first set is a solution, the second is not.

Step-by-step explanation:

Testing by filling in the numbers into the equation:

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(12, 4): x=12, y=4

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⇒ 4 =? \frac{12}{4}  + \frac{5}{4}

⇒ 4 =? \frac{17}{4} ⇒ Incorrect: this is not a solution for the equation

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