3 years ago

Which method do you prefer to use: Trig Method or Special Right Triangles

Mathematics

1 answer:

kondaur [170]3 years ago

8 0

Answer:

would use the Trig Method.

Step-by-step explanation:

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and Jerry is trying to earn $209 for some new video games if he changes $47 to mow a lawn how many Lawns will he need to know to

Andru [333]

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3 years ago

Help me find Sample variance and standard deviation

AnnZ [28]

First, find the mean. You'll need it to compute the variance.

$\bar x=\displaystyle\frac15\sum_{i=1}^5x_i=\dfrac{21+10+6+7+11}5=11$

The variance of the sample is then computed with the formula

$s^2=\displaystyle\dfrac1{5-1}\sum_{i=1}^5(\bar x-x_i)^2=\dfrac{(21-11)^2+\cdots+(11-11)^2}4=\dfrac{71}2=35.5$

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3 years ago

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Kaylis [27]

Answer:

True

Step-by-step explanation:

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3 years ago

14 fr to 21 ft ( simply )

zimovet [89]

If you're asking the difference between 14 ft and 21 ft your answer is 7 ft, just subtract 14 from 21

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3 years ago

Evaluate the expression when y=-7.<br> y? +4y-1

Delicious77 [7]

Answer:

Step-by-step explanation:

y^2+4y-1=(-7)^2+4(-7)-1=(-7)(-7)-28-1=49-28-1=21-1=20

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3 years ago