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Andrew [12]
3 years ago
15

What is identity property mean?

Mathematics
1 answer:
kow [346]3 years ago
6 0
Any number multiplied by one keeps its identity
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Find the solutions of each equation on the interval [0, 2π). si (3pi/2+x)+ sin (3pi/2+x)=-2
ANEK [815]

Answer:

The solutions are 0° and 3π

Step-by-step explanation:

On solving the equation given;

sin(\frac{3\pi}{2}+x )+ sin(\frac{3\pi}{2}+x ) = -2\\2sin(\frac{3\pi}{2}+x ) = -2\\sin(\frac{3\pi}{2}+x ) = -1\\\frac{3\pi}{2}+x  = sin^{-1}-1\\ \frac{3\pi}{2}+x = -\frac{\pi}{2} \\x = -\frac{\pi}{2} -\frac{3\pi}{2} \\x =  \frac{-4\pi}{2} \\x = -2\pi\\

<u>Since sin is negative in the 3rd and 4th quadrant, </u>

In the 3rd quadrant;

x =180°+2π

x = π + 2π

x = 3π

In the 4th quadrant;

x = 360°-2π

x = 2π-2π

x = 0°

6 0
4 years ago
Which digit is in the hundredth place in the following number: 234.567 *​
iVinArrow [24]

Answer:

4 because digits are counted before decimal.

8 0
2 years ago
Read 2 more answers
Subtract m + 8 ​​from​ 5m + 11.<br><br> ???
nasty-shy [4]

Answer:

=−4m+19

Step-by-step explanation:

8 0
3 years ago
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Can you help me?
Semenov [28]

Answer:

0=0

Step-by-step explanation:

8 0
3 years ago
If 48 feet are represented by 12 inches on a scale drawing, then a scale of 1/4 inch represents how many feet? a. 3 foot c. 2 fo
alukav5142 [94]
Hello there!

Math is hard! So we as students, we need to play the smart game with Math in order to find the easiest way to solve the problems. What do I mean? Well as you can see they gave us Fraction which won't be easy! So we will transform the fractions into decimals. So let's get started.

Then a scale of 1/4. Transformed into decimal = Then a scale of 0.25
So instead of using the fraction 1/4, I used its decimal 0.25

So if:

48 feet ......> 12 inches
x feet ........> 0.25 inches

Cross multiply

12 * x = 0.25 * 48

12x = 12
Divide both sides by 12
12x/12 = 12/12

x = 1

The correct answer is option D, 1 foot

I hope this helps! Please let me know if you have any question.

Thanks!
5 0
3 years ago
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