When is secxtanx equal to 0

Answers

Answer 1
Answer: Where doessec x = 0andtan x = 0?sec x cannot ever be zero, but tan x = 0 when sin x = 0 Chuck norris can make sec x 0
All of these are values of x ....-2pi, -pi, 0, pi, 2pi, 3pi, ....

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A "Local" train leaves a station and runs at an average rate of 35 mph. An hour and a half later an "Express" train leaves the station and travels at an average rate of 56 mph on a parallel track. How many hours after the Express train starts will the it overtake the Local?

Answers

Hello,

Let's assume x the time the express runs.

56*x=35*(1.5+x)
==>21x=52.5

==>x=2.5 h =2 h 30 min
x=2.5 h =2 h. 30 min.

The list shows the number of points Emma scored in eight basketball games.5, 11, 9, 9, 4, 5, 6, 7
Find the mean.

Answers

Answer:

Mean = 7

Step-by-step explanation:

Given the following data;

Number of games = 8

Scores = 5, 11, 9, 9, 4, 5, 6, 7

We would sum all the scores together to get a total score.

Total scores = 5 + 11 + 9 + 9 + 4 + 5 + 6 + 7 = 56

Now, to find the mean;

Mean = \frac {total \; scores}{number \;  of \; games}

Mean = 56/8

Mean = 7

Answer:

7 is the mean score.

Step-by-step explanation:

Now we have to,

→ find the required mean score.

The given scores are,

→ 5, 11, 9, 9, 4, 5, 6, 7

→ Numbers = 8

Then the mean score will be,

→ (5 + 11 + 9 + 9 + 4 + 5 + 6 + 7)/8

→ 56/8 = 7

Hence, the mean score is 7.

In a factory there are three polishing machines, A, b, and C. when all three of them are working, 5700 lenses can be polished in one week. When only A and B are working, 3400 lenses can be polished in one week. When only B and c are working, 4200 lenses can be polished in one week. How many lenses can be polished in a week by each machine?

Answers

It would be answer B

Write an inequality for the situation. all real numbers y that are less than 4 or greater than 9A. y ≤ 4 or y ≥ 9

B. 4 < y < 9

C. y < 4 or y > 9

D. y < 9 or y > 4

Answers

Answer: Hello mate!

The notation:

a < b

means that the number b is bigger than the number a, and the notation:

a ≤ b  

means that the number b is bigger or equal than the number a.

"all real numbers y that are less than 4"

this is written as:

y < 4

"all real numbers that are greater than 9"

this is written as:

y > 9

then, the situation can be written as:

y <4 and y >9, which means that the right answer is option C.

The Correct answer would be C... A would only be correct if they said equal to or less/greater than.

Montel sold 13 popcorn buckets and 13 fruit baskets for a fundraiser. The fruit baskets cost $20.75 each. If Montel raised a total of $468.00, how much did each popcorn bucket cost?

Answers

13\cdot\$20.75=\$269.75-fruit\ baskets\n\n\$468.00-\$269.75=\$198.25-popcorn\ busket\n\n\$198.25:13=\$15.25-cost\ each\ popcorn\ bucket

Simplify the following

Square root 15 / Square root 3

Answers

Answer:

The answer is √5 .

Step-by-step explanation:

Youhavetorationalizethefractioninordertogetridofsurdinthedenorminatorbymultiplying3tobothnumeratoramddenorminator:

( √(15) )/( √(3) )

=  ( √(15) )/( √(3) )  *  ( √(3) )/( √(3) )

=  ( √(15) *  √(3)  )/( √(3)  *  √(3) )

=  ( √(45) )/(3)

=  ( √(9 * 5) )/(3)

=  (3 √(5) )/(3)

=  √(5)