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ANEK [815]
3 years ago
15

Xét tính chẵn lẻ của hàm số : y = tanx + cotx

Mathematics
1 answer:
Anna71 [15]3 years ago
5 0

Answer:

Step-by-step explanation:

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HELP I REALLY REALLY NEED THIS HELP MEE SUPER EZ 28 POINTS I REALLY NEED THIS I DONT REALLY CARE IF ITS WRONG AT LEAST YOU TRY ;
Lesechka [4]

Answer:

43. I'm not really sure about this one but here's what I got:

The average height of a 4th grader is 58 inches. (Maybe that'll help) Also if it's by the number of kids in the class....I would assume that there are at most 33 kids in the class....I'm not sure what it's asking...sorry :(

46. There are 8 total marbles so if you were selecting a green marble the probability of getting a green marble would be 3/8. If there are 2 blue marbles  then the probability would be 2/8 or 1/4

LINK: https://mathbitsnotebook.com/Geometry/Probability/PBIndependentDependent.html

48. In a deck of cards there are 26 black cards and 26 red cards. Number of event occurrences. Total number of trials. For example, if a dice is rolled 6000 times and the number '5' occurs 990 times, then the experimental probability that '5' shows up on the dice is 990/6000 = 0.165. That should help with this one

LINK:

https://explorable.com/experimental-probability

49. Since there are 6 sides and each side is a number 1-6, the probability of rolling a six is 1:6

50. This one is easy if you read the question right. There are no pink marbles....

I'm not that great with graphs

I hope this helped a little....some of the questions I didn't understand.

4 0
3 years ago
18 is 45% of what number? ____<br> Please help me I can't solve this
Alexxx [7]

18/x = 45/100

cross multiply

18/x * 45/100

45x =1800

divide both sides by 45

45x/45 =1800/45

x=40

18 is 45% of 40


6 0
3 years ago
Boots: $59.00, discount: 10 percent sales tax 5.5 percent
I am Lyosha [343]

Answer:

Total cost of boots = $56.02

Step-by-step explanation:

$59 x 0.90 = $53.10

$53.10 x 1.055 = $56.02

or

59 x 0.10 = 5.9

59 - 5.9 = $53.10

53.10 x 0.055 = $2.92 tax

$53.10 + $2.92 = $56.02

8 0
3 years ago
If X and Y vary directly, as x decreases, what happens to the value of y?
diamong [38]
As x decreases y also decreased
5 0
3 years ago
Rewrite each expression using the distributive property.<br> 1. (a X 4) + (a x 3) =
Darina [25.2K]

Answer:

(a x 4)+(a x 3)=7a

Step-by-step explanation:

(a x 4)+(a x 3)= 4a+3a

(a x 4)+(a x 3)=7a

or does your question means something else??

3 0
3 years ago
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