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Zarrin [17]
3 years ago
8

Which function has a domain of all real numbers except x=pi/2+_npi?

Mathematics
1 answer:
Vlad [161]3 years ago
4 0

The answer would be D. Y=secx

Hope this helps and good luck!

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One gallon of gas costs $3.60 and you buy m gallons. How much do you spend on gas?
grandymaker [24]

Answer:

3.60m

Step-by-step explanation:

Basically if 1 bought i gallon its 3.60

2= 7.2 dollars and so forth

4 0
3 years ago
How much pure acid do you mix with 2L of 40% acid to get 70% acid
iris [78.8K]
(2*40%+x*10<span>0%)/(2+x) = 70%; calculate x !</span>
8 0
3 years ago
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A special deck of cards consists of 5 red cards, 20 blue cards, and 25 green cards. Svetlana selects 1 card from the special dec
Ipatiy [6.2K]

Answer:The answer is 50

Step-by-step explanation:

The first step is to add up the numbers in order to get the outcome

5 red + 20 blue +25 green =5+20+25 =50

Step 2

Probability =no of events /no of outcome

We were asked to find the probability of red

Where red represent event

And the summation of red ,green and blue represents outcome .

So probability of red =5/50 = 1/10

Step 3

Recall in the question ,we were told that the card was selected 500 times ,so we multiply the probability of getting red by 500

1/10 *500 =50

Therefore the probability of drawing a red card from the special deck 500 times is 50 .

7 0
3 years ago
Jericho is doing a quick survey for his high school newspaper. He hands out a simple index card to 100 seniors in his high schoo
Kazeer [188]

Answer:

50

Step-by-step explanation:

From research among high school students in the US, it was discovered in 2017 by US Centre for Disease Control and Prevention Agency(USCDC), that around 57.8% of high school students have drank alcohol in the previous 1 year.

Now, applying it to this question, since the survey is done among 100 seniors, the most modest probability would likely be 50% which represents 50 people out of the 100 surveyed that will likely check yes

8 0
3 years ago
Solve the equation -9x+1=-x+17​
Step2247 [10]

Answer:

x=-2

Step-by-step explanation:

-9x+1=-x+17

Add 9x on both sides:

     1=8x+17

Subtract 17 on both sides:

   -16=8x

Divide both sides by 8:

     -2=x

Check x=-2!

-9x+1=-x+17     with x=-2

-9(-2)+1=-(-2)+17

18+1=2+17

19=19

19=19 is a true equation so x=-2 is correct.

5 0
3 years ago
Read 2 more answers
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