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raketka [301]
2 years ago
8

Solve sin2x=-1/2 on the interval 0≤ angle≤360°​

Mathematics
1 answer:
GREYUIT [131]2 years ago
8 0

Answer:

x=135

Step-by-step explanation:

We know that sin(270) = -1/2

So 2x = 270

x = 135

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Between which two integers can the square root of 15 be found?
Taya2010 [7]

Answer:

3 and 4

Step-by-step explanation:

Consider squares on either side of 15, that is 9 and 16, so

\sqrt{9} < \sqrt{15} < \sqrt{16}, that is

3 < \sqrt{15} < 4

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3 years ago
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Clark spent a total of $52 on a pair of shoes and a new jacket. The shoes cost $4 more than the jacket. Write a system of equati
lara [203]

Answer:

  • x+y=52
  • x-y=4
  • y=24

Step-by-step explanation:

The sum of the two costs is $52, so we can write ...

  x + y = 52

The shoes cost $4 more than the jacket, so we can write ...

  x - y = 4

These are your system of equations.

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Subtract the second equation from the first:

  (x +y) -(x -y) = (52) -(4)

  2y = 48 . . . . . simplify

  y = 24 . . . . . . .divide by 2

The cost of the jacket is $24.

8 0
3 years ago
Need help due in 3 minutes!!!!
Yanka [14]

Answer:

ENQEU

Step-by-step explanation:

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2 years ago
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The histogram shows the number of text messages sent by two high school juniors on one monday. Which statement most reasonably e
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The students where asleep and did not have phones turned on.

Step-by-step explanation:

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The sum of 5 consecutive numbers is 200. What is the smallest number?​
Vikentia [17]

Answer:

Hey!

Your answer is 44!

Step-by-step explanation:

Here's how...

x+(x+2)+(x+4)+(x+6)+(x+8)=200

5x+20=200  (minus 20 on both sides to get 5x by itself)

5x=180  (divide both sides by 5 to get just x)

x=36

5th number - x+8=36+8=44 (simple substitution and addition)

I HOPE THIS HELPS!

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