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jek_recluse [69]
2 years ago
11

Mark all statements that are true . help !

Mathematics
1 answer:
sweet-ann [11.9K]2 years ago
8 0

Answer:

C D E

Step-by-step explanation:

They are the options that are clear enough

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The difference between twice a number and 16 is 30. Which math statement is an equation that represents this relationship?
valina [46]
The correct equation is d) 2x - 16 = 30. 
3 0
3 years ago
Which two values of x satisfy the equation square root 3-2cos x = 2?
Andrei [34K]

Answer: x=2π/3 and x=4π/3

Step-by-step explanation:

The equation we have is \sqrt{3-2cosx} =2. All we have to do is get cosine alone to find the 2 values of x.

3-2cosx=4\\-2cosx=1\\cosx=-\frac{1}{2}

Now that we have our cosine left, we can use our unit circle to figure out when does cosx=-1/2. Cosine is the x value of the coordinate.

x=2π/3

x=4π/3

8 0
2 years ago
Math practice <br> Will give brainest if correct
svetoff [14.1K]

Answer:

x > 24

Step-by-step explanation:

12 + 12 = 24

5 0
2 years ago
When making a fruit salad, a chef chooses 7 fruits from 10 that are in season. how many different fruit salads can the chef crea
Furkat [3]
For this example, we must combine not permutate; this because a salad in which you first use apple then tomato is the same as the one in which you use first tomato then apple, so order does not matter.

Me must do "10 combine 7" which is written by the binomial coefficient (_{7} ^{10}); in general a binomial coefficient is written by:
(_{k} ^{n})= \frac{n!}{k!(n-k)!}

In which n and k are positive integers, such that n\ \textgreater \ k.

So, for this problem:
(_{7} ^{10})= \frac{10!}{7!(10-7)!}=\frac{10!}{7!3!}= \frac{10*9*8}{3*2}=10*3*4=120

Hence, there are 120 different ways to make the fruit salad.
5 0
2 years ago
Find three consecutive even integers have a sum of 48.
yan [13]

Answer:

14, 16, 18

Step-by-step explanation:

x + (x+2) + (x+4)= 48

3x + 6 = 48

3x = 42

x = 14

x+2 = 16

x+4 = 18

7 0
3 years ago
Read 2 more answers
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