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liubo4ka [24]
3 years ago
5

-2 x 2y if x = -3 and y = -1

Mathematics
1 answer:
pentagon [3]3 years ago
4 0
The answer is 12 because u have to replace it -2(3)2(-1) and -2*3=-6 and 2(-1)=-2 and -6*-2=12
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A. 0.12<br> B. 0.13<br> C. 0.14<br> D. 0.15<br> Explain why you chose the answer
blagie [28]
The answer is C. 0.14
8 0
2 years ago
Isla flipped a coin 30 times. The coin landed heads up 9 times and tails up 21 times.
DedPeter [7]

A.) Either way the probability would be 1/2 because there are only 2 sides of a coin so fate decides on which side it will land on.


B.)Same as A

8 0
3 years ago
One year Terry had the lowest ERA​ (earned-run average, mean number of runs yielded per nine innings​ pitched) of any male pitch
Colt1911 [192]

Answer:

Their respective​ z-scores are:

Thomas : -2.15279

Karla : -1.40221

Which player had the better year relative to their​ peers, Terry or Karla ​? ​

Terry had a better year because he had a lower Era and he was a better pitcher.

Step-by-step explanation:

The formula for calculating a z-score is is z = (x-μ)/σ,

where x is the raw score,

μ is the population mean

σ is the population standard deviation.

any male pitcher at his​ school,

For Thomas:

z = (x-μ)/σ

x = 2.85 μ = 4.893 σ = 0.949.

z = 2.85 - 4.893/0.949

z = -2.15279

For Karla

z = (x-μ)/σ

x = 2.95 μ = 4.348 σ = 0.997.

z = (2.95 - 4.348) /0

z = -1.40221

Their respective​ z-scores are:

Thomas : -2.15279

Karla : -1.40221

Which player had the better year relative to their​ peers, Terry or Karla ​? ​(Note: In​ general, the lower the​ ERA, the better the​ pitcher.)

Terry had a better year because he had a lower Era and he was a better pitcher.

5 0
3 years ago
What is the value of y
AVprozaik [17]

Answer:

D) 44°

Step-by-step explanation:

An exterior angle of a triangle is equal to the sum of the opposite interior angles

So

y + y = 88

2y = 88

y = 44

6 0
3 years ago
Help.....././././////////././.
alexgriva [62]

Answer:

hello, i am not sure. but the answer is between a and c

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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