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3 years ago

What property is this an example of ... 56 + 82 = 82 + 56?

Mathematics

2 answers:

xenn [34]3 years ago

8 0

Answer:

Inverse equations

Step-by-step explanation:

kkurt [141]3 years ago

5 0

Answer: Commutative Property

Step-by-step explanation:

a + b = b + a

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Find the area of an equilateral triangle with a side of 10cm

r-ruslan [8.4K]

Answer:

Since it is an equilateral triangle, all sides are 10cm

Step-by-step explanation:

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3 years ago

Length=5.3 in, width = 1.7

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9.01 you do LxW = your answer

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4 years ago

lisa find a hat that is already marked downtime price tag shows that the original price was $36.00 the marked down price is $27.

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The price has been marked down 25 percent?

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4 years ago

Write sin^2(x)*cos^2(x) as a single power of cosine, show work

WINSTONCH [101]

This is what you're looking for if I'm not mistaken
sin²x + cos²x = 1
So:
sin²x = 1 - cos²x

∴ sin²x * cos²x = (1 - cos²x) * cos²x
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3 years ago

A sample from 16 shortstops was obtained in an effort to determine whether shortstops have higher salaries than other players. T

marissa [1.9K]

Answer:

1.16 to 2.75

Step-by-step explanation:

The mean salary (millions of dollars) for shortstops was 1.95.

$\bar{x}=1.85$

The population mean for all baseball players was 1.85

$\mu = 1.85$

The population standard deviation was 1.61.

$\sigma = 1.61$

Formula of confidence interval : $x-z\times \frac{\sigma}{\sqrt{n}}$ to $x+z\times \frac{\sigma}{\sqrt{n}}$

z at 95% confidence level = 1.96

Substitute the values in the formula

Confidence interval : $1.95-1.96\cdot\frac{1.61}{\sqrt{16}}$ to $1.95+1.96\cdot\frac{1.61}{\sqrt{16}}$

Confidence interval : 1.16 to 2.75

Hence the 95 percent confidence interval for these data is 1.16 to 2.75

8 0

3 years ago