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S_A_V [24]
3 years ago
14

Need of helpp for my test​

Mathematics
2 answers:
Alexxandr [17]3 years ago
8 0
Answer:

-2


Explanation:
katrin [286]3 years ago
5 0

Answer:

-2

Step-by-step explanation:

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Helllohello help please if you want -
Harrizon [31]

Answer:

y = 10 is the true number sequence

Step-by-step explanation:

y + 6 = 16

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Twenty percent of all undergraduates at a university are chemistry majors. In a random sample of six ​students, find the probabi
tamaranim1 [39]
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4 years ago
Help please!! i don’t understand this one!
12345 [234]

Answer:

  C, D

Step-by-step explanation:

This equation can be solved any of several ways. One that doesn't require much thought is using the quadratic formula.

For ax² +bx +c = 0, the solutions are ...

  x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

In the given equation, a=2, b=11, c=5, so this becomes ...

  x=\dfrac{-11\pm\sqrt{11^2-4\cdot2\cdot5}}{2\cdot2}=\dfrac{-11\pm\sqrt{81}}{4}\\\\x=\dfrac{-11\pm9}{4}=\left\{-\dfrac{20}{4},-\dfrac{2}{4}\right\}=\{-5,-\frac{1}{2}\}

The solutions are ...

  C. x = -5

  D. x = -1/2

_____

My personal favorite is using a graphing calculator. The solutions are the x-intercepts of the expression on the left. That is, where its value is zero, as the equation says.

5 0
3 years ago
Will give brainliest if 2 people answer :)
zubka84 [21]

D) There is no association between commuting preferences and gender.

8 0
4 years ago
Read 2 more answers
6500 is what percent of 32,500?
blagie [28]

i belive its 6500 is 20% of 32500


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3 years ago
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