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REY [17]
2 years ago
5

-2x+9y=-41 -2x-5y=1 Process of elimination

Mathematics
1 answer:
MrMuchimi2 years ago
3 0

-2x+9y=41.... equation 1

-2x-5y=1 ....equation 2

________________

14y=43

y=43/14

y=43/14 in equation 1

-2x+9(43/14)=41

-2x+387/14=41

-2x=41-387/14

-2x=187/14

x=187/-28

x=187/28 , y=43/14

if you want to check your answer

-2(187/28)+9(43/14)=41

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Jerry was comparing the points the bulls socered for different games he recorded 85,85, 86,77, 93 determine the mean median mode
maks197457 [2]
Answers:
Mean - 85.2
Median - 85
Mode - 85

Explanation:
Mean - 77+85+85+86+93=426/5 (the amount of data points given) = 85.2

Median - Organize the data points from least to greatest and eliminate the outermost numbers two at a time (one from both side) until you’re left with one.

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Nine months ago Alexa deposited $7,000 in a three-year CD. She has received $224.16 in interest.
kvasek [131]
7000 + 224.16 = $7,224.16
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8 0
3 years ago
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Sedbober [7]
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3 0
2 years ago
Suppose <br> f '(x) = xe^−x^2
iogann1982 [59]
<h3>Answers:</h3>
  • (a) The function is increasing on the interval (0, infinity)
  • (b) The function is decreasing on the interval (-infinity, 0)

=======================================================

Explanation:

You should find that the derivative is entirely negative whenever x < 0. This suggests that the function f(x) is decreasing on this interval. So that takes care of part (b).

The interval x < 0 is the same as -infinity < x < 0 which then translates to the interval notation (-infinity, 0)

Similarly, you should find that the derivative is positive when x > 0. So the function is increasing on the interval (0, infinity)

6 0
3 years ago
PLS HELP I WILL GIVE YOU A BRAINLIST AND A THANK YOU!!!!
kramer

Answer:

75

Step-by-step explanation:

We have a 90 degree angle and a 15 degree angle that add up to 105. The angle that is missing can be found by doing 180 - 105 = 75 (since it's a straight line). X is vertical from the 75 degree angle, so 75 is your answer.

6 0
3 years ago
Read 2 more answers
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