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2 years ago

Can anyone plz help me plz:

Mathematics

1 answer:

dexar [7]2 years ago

7 0

The range of the data can be calculate by subtracting the min from the max. In this case, the min is 10 and the max is 90. The range is 90 - 10, or 80.

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A stack of identical 8-centimeter-by-10-centimeter rectangular playing cards is sitting on a table. The stack is 1 centimeter hi

snow_lady [41]

Answer: A, B, C.

If the stack of cards are shifted so it is not straight, it still has everything the same.

7 0

2 years ago

Considering only the values of β for which sinβtanβsecβcotβ is defined, which of the following expressions is equivalent to sinβ

-Dominant- [34]

Answer:

$\tan(\beta)$

Step-by-step explanation:

For many of these identities, it is helpful to convert everything to sine and cosine, see what cancels, and then work to build out to something. If you have options that you're building toward, aim toward one of them.

${\tan(\theta)}={\dfrac{\sin(\theta)}{\cos(\theta)}$ and ${\sec(\theta)}={\dfrac{1}{\cos(\theta)}$

Recall the following reciprocal identity:

$\cot(\theta)=\dfrac{1}{\tan(\theta)}=\dfrac{1}{ \left ( \dfrac{\sin(\theta)}{\cos(\theta)} \right )} =\dfrac{\cos(\theta)}{\sin(\theta)}$

So, the original expression can be written in terms of only sines and cosines:

$\sin(\beta)\tan(\beta)\sec(\beta)\cot(\beta)$

$\sin(\beta) * \dfrac{\sin(\beta) }{\cos(\beta) } * \dfrac{1 }{\cos(\beta) } * \dfrac{\cos(\beta) } {\sin(\beta) }$

$\sin(\beta) * \dfrac{\sin(\beta) \!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!{---}}{\cos(\beta) \!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!{---}} * \dfrac{1 }{\cos(\beta) } * \dfrac{\cos(\beta) \!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!{---}} {\sin(\beta) \!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!{---}}$

$\sin(\beta) *\dfrac{1 }{\cos(\beta) }$

$\dfrac{\sin(\beta)}{\cos(\beta) }$

Working toward one of the answers provided, this is the tangent function.

The one caveat is that the original expression also was undefined for values of beta that caused the sine function to be zero, whereas this simplified function is only undefined for values of beta where the cosine is equal to zero. However, the questions states that we are only considering values for which the original expression is defined, so, excluding those values of beta, the original expression is equivalent to $\tan(\beta)$ .

8 0

2 years ago

Which equation is equivalent to the formula below? <br> Y = A ( X - H) ^2 + K

frozen [14]

Answer:

Step-by-step explanation:

Given the expression y = a (x-h)² + k

First make a the subject of the formula

Subtract k from both sides

y = a (x-h)² + k

y- k = a (x-h)² + k - k

y - k = a (x-h)²

Divide through by (x-h)²

y - k/(x-h)² = a

a = y - k/(x-h)²

Hence option B is correct

6 0

2 years ago

Read 2 more answers

If a<=b<=c<=d<=e<=110 and the average of a,b,c,d,e is 100 what is the least possible value of a?. . options: 0 ,

VikaD [51]

The least possible value of a would be 60. The correct answer between all the choices given is the fourth choice or letter D. I am hoping that this answer has satisfied your query about and it will be able to help you, and if you’d like, feel free to ask another question.

7 0

2 years ago

PLEASE HURRY!!!!

____ [38]

Answer:

i think its 19 minunts i could be wrong but if not i hope this helps

Step-by-step explanation:

3 0

2 years ago