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Dmitriy789 [7]
3 years ago
15

What is the quadratic domain of y=x squared

Mathematics
1 answer:
statuscvo [17]3 years ago
4 0

domain is the numbes you are allowed to use for x

what I usually do is just find the numbers that aren't allowed in the domain. such numbers are numbers that cause a division by 0 or a squaer root of a negative number

given y=x^2, there are no numbers that you can use for x that will cause a division by 0 or a square root of a negative number


so domain is all real numbers or D={x | -∞<x<∞}

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I need help can someone explain this simply
statuscvo [17]
In order to do this, you have to use the Pythagorean Theorem which is a^2 +b^2=c^2 It does not matter in what order a and b are, but c is always the hypotenuse or the side across from the right angle. First, you substitute 24 in for a and 45 in for b so your equation so far would look like 24^2 + 45^2 = c^2 Then, you square 24 and 45 and get 576+2025=c^2 Then you add the two to get 2601=c^2 Finally, you would square root both sides and get 51=c So the width of the recycling bin is 51 inches long
8 0
2 years ago
The price of a computer was decreased by 30% to £147. What was the price before the decrease?
Sunny_sXe [5.5K]

Answer:

£210

Step-by-step explanation:

A decrease of 30% represents 70% of the original cost.

100% represents the original cost

Divide the price by 70 to find 1% then multiply by 100 for original cost

original cost = \frac{147}{70} × 100 = 2.1 × 100 = £210

4 0
3 years ago
Read 2 more answers
Which pairs of angles in the figure below are vertical angles?
andre [41]

Answer:

C & D because vertical angles have the same measures and thoses angles intersects each other

Step-by-step explanation:

5 0
2 years ago
120 books increased by 55%
Novay_Z [31]

<span> To find 55% of 120 books, multiply 120 x .55  
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120 + 55% = 186

6 0
3 years ago
Helppp!!!!!
nydimaria [60]

Answer:

true, false, true

Step-by-step explanation:

it only changes the direction

8 0
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