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alex41 [277]
3 years ago
15

Find the coordinates of point PP along the directed line segment ABAB, from A(8, 0)A(8, 0) to B(3,−2)B(3,−2), so that the ratio

of APAP to PBPB is 11 to 44. A(8, 0), B(3,−2)A(8, 0), B(3,−2) The coordinates are P
Mathematics
1 answer:
timurjin [86]3 years ago
4 0
Let the coordinate of P be (x, y), then
(x, y) = ((44(8) + 11(3))/(11 + 44), ((44(0) + 11(-2))/(44 + 11)) = ((352 + 33)/55, -22/55) = (7, -0.4)

The coordinates of P are (7, -0.4)
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Explain how the Pythagorean theorem is used to tell if a right triangle.​
kodGreya [7K]

The Pythagorean theorem deals with the lengths of the sides of a right triangle. The theorem states that: The sum of the squares of the lengths of the legs of a right triangle is equal to the square of the length of the hypotenuse.

5 0
3 years ago
b. Find a 99% confidence interval for mean age of ICU patients using the facts that, in the sample, the mean is 57.55 years and
rjkz [21]

Answer:

<em>99% of confidence intervals for mean age of ICU patients</em>

<em>(53.8920 , 61.2079)</em>

Step-by-step explanation:

<u><em>Explanation</em></u>:-

<em>Given sample mean </em>x^{-} = 57.55<em></em>

Given standard error is determined by

                                                             S.E =\frac{S.D}{\sqrt{n} }

<em>Given data standard error = 1.42</em>

<em>99% of confidence intervals for mean is determined by</em>

(x^{-} - Z_{0.01} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.01} \frac{S.D}{\sqrt{n} } )

Z_{\frac{\alpha }{2} } = Z_{\frac{0.01}{2} } = Z_{0.05} = 2.576

(x^{-} - 2.576 S.E , x^{-} + 2.576 S.E)

(57.55 - 2.576X 1.42 , 57.55+ 2.576 X1.42)

(53.8920 , 61.2079)

<u><em>Conclusion</em></u>:-

<em>99% of confidence intervals for mean is determined by</em>

<em>(53.8920 , 61.2079)</em>

5 0
3 years ago
0.67, 43.8, and 1.0073 in expanded
vladimir2022 [97]
That is expanded if im not mistaken LEL
6 0
3 years ago
The graph of g(x) is shown. Determine the transformations from the parent function f(x)=x2 to the new function g(x)=15x2+5
Viktor [21]

Answer:

The graph of g is translated down 5 units from the graph of f and stretched horizontally

Step-by-step explanation:

was correct on test :)

pls brainliest XD

.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.

7 0
2 years ago
Mark’s Pool Repair charges $50 for a service call, plus $40/h for labour. Jennifer’s Pools and Spas charges $30 for a service ca
tatyana61 [14]

Multiply each hourly rate by x ( time to complete the work) add it to the service call for each and then set the equations equal:

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3 0
3 years ago
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