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777dan777 [17]
3 years ago
12

For any real number √a² a - |al lal. -a

Mathematics
1 answer:
spayn [35]3 years ago
6 0

Answer:

|a|

Step-by-step explanation:

For any positive or negative a, when you square it, the answer is positive.

The square root symbol means the principal square root. For a positive number, the principal square root is positive. To make sure the square root is always non-negative, use absolute value.

Answer: |a|

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B)Given 0º &lt; x &lt; 360° , solve for x in:<br> 2 sin (2x - 30°) = √3.​
Rainbow [258]

Answer:

180°

because x is the mid pf 0° and 360°

3 0
3 years ago
What is the coordinate of the midpoint of (2, 1) and (18, 7)?
lara31 [8.8K]

Answer:

The midpoint is (10, 4)

Step-by-step explanation:

To find the midpoint, you add the x value from the first coordinate and the x value from the second coordinate, then divide by two to get the x coordinate of the midpoint. You do the the same exact thing with the two y values to find the y coordinate of the midpoint.

2 + 18 = 20

20 / 2 = 10

1 + 7 = 8

8 / 2 = 4

(10, 4)

Hope this helps!

3 0
3 years ago
Read 2 more answers
Seven less than 5 times a number is 62. What is the number. (Explain)
Marrrta [24]

7-5*14=62

The equation above is how you would write it with a variable.

The number is 14.

This is because if you do 14 times 5, the answer is 70. Then If you subtract from that, it would be 62.

You can also do 62+7, which is 70, and then divide that by 5 and you will still get 14.


7 0
4 years ago
Amir has a bag of dimes and quarters. He has a total of 31 coins worth $5 20. Let x represent the number of dimes and y represen
yulyashka [42]

Answer:

This is the given information for which system of equations would be used to find out how many dimes and quarters Amir has?

x = dimes          x = 0.10 or 0.1

y = quarters      y = 0.25

31 coins

worth $5.20       = 5.2

x + y = 31

0.1x + 0.25y = 5.2

Step-by-step explanation:

3 0
2 years ago
What is the value of c?
lara31 [8.8K]
You have to use the Pythagoreas theorem where you do 3 squared + 4 squared=25
Then you square root 25 which is 5 so
c is 5
5 0
3 years ago
Read 2 more answers
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