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kramer
4 years ago
12

What basic trig identity would you use to verify that cotxsinx+cosx

Mathematics
1 answer:
vazorg [7]4 years ago
4 0

Answer:

You use cotx = cosx/sinx.

Step-by-step explanation:

I guess you mean cotx sinx = cosx.

You substitute the identity cotx = cosx / sinx:

cotx sinx = (cosx / sin x) * sin x

The sin x ' s cancel to give cosx.

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The value of the 9 is ten times the value of the 9 in 329,513. The value of the 2 is one-tenth the value of the 2 in 7,562. The
nexus9112 [7]

Answer: The number is 90,000.26

Step-by-step explanation:

Extracting key information from the question:-

*** The value of the "9" in Lea's riddle is 10 times the one in 329,513

*** The value of the "2" in the riddle is 1/10 the value of the 2 in 7,562.

*** The value of the 6 in the riddle is one-tenth the value of the 6 in 4.68

*** We are required to solve this possible and reveal the number.

Now, in the number 329,513 the place value of 9 is 9,000. According to the information provided, the value of the 9 in the riddle is ten times the value of the 9 in 329,513.

So, multiplying 9000 by 10 gives:-

9,000 × 10

= 90,000

Again, the value of the 2 in the riddle is one-tenth (1/10) the value of the 2 in 7,562. The value of 2 in 7,562 is 2 units, therefore one-tenth of this 2 units will give:-

1/10 × 2

= 0.2

Similarly, the value of 6 in the puzzle is one-tenth (1/10) the value of the 6 in 4.68; The 6 here is 6 hundredth = 0.6

Therefore, the value of 6 in the puzzle is:

1/10 × 0.6

= 0.06

In order to discover the number in Lea's riddle, we will then add up the calculated values:-

= 90,000 + 0.2 + 0.006

= 90,000.26

This number is the answer to Lea's riddle.

4 0
3 years ago
Find the solutions for this polynomial equation 3(x − 2)(x2 − 9)(x + 7) = 0
kherson [118]

Answer: If the x2-9 is x^2-9, then this is the answer. If not and it's supposed to be 2x then the answer is x=2 or x=−7 or x=9/2

Step-by-step explanation:

3(x−2)(x2−9)(x+7)=0

3x4+15x3−69x2−135x+378=0

Step 1: Factor left side of equation.

3(x−2)(x+3)(x−3)(x+7)=0

Step 2: Set factors equal to 0.

x−2=0 or x+3=0 or x−3=0 or x+7=0

x=2 or x=−3 or x=3 or x=−7

4 0
3 years ago
12.5x + 4 = 7x + 37 solve for x
natulia [17]

Answer:

x = 6

Step-by-step explanation:

12.5x + 4 = 7x + 37

-7x             -7x

5.5x + 4 = 37

        - 4   - 4

5.5x = 33

x = 6

If this answer is correct, please make me Brainliest!

7 0
4 years ago
Read 2 more answers
WHO EVER AWNSERS FIRST AND MAKES THE AWNSER CORRECT ILL MARK BRAINLIEST
Vladimir [108]
Spinning 7- 1/8 chance
Spinning not 7- 7/8 chance
Spinning an even number- 4/8
Spinning a number less than 5- 4/8

Thus, the event that has the greatest likelihood is "Spinning not 7"
5 0
3 years ago
Help pls. I will give brainliest
Iteru [2.4K]

Answer: AC is congruent to PR.

Step-by-step explanation:

Letter A takes the corresponding position as letter P, and letter C takes the corresponding position as letter R in the given congruence statement.

8 0
2 years ago
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