MATHEMATICS HIGH SCHOOL

What is the domain of the following function:A. -1 ≤ x ≤0
B. -1≤x≤ 1
C. x>0
D. x is all real numbers.
What is the domain of the following function: A. -1 - 1

Answers

Answer 1
Answer:

Answer:  D. x is all real numbers.

Reason

There aren't any gaps, holes, jumps or disconnects to worry about. We can plug in any real number for x to get some y value between -1 and 1.

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A local hamburger shop sold a combined total of 574 hamburgers and cheeseburgers on Saturday. There were 74 more cheeseburgers sold than hamburgers. How many hamburgers were sold on Saturday?

Answers

500 hamburgers, I believe.

The price of a pair of shoes is $45.90. The sales-tax rate is 5 percent. How much sales tax do you need to pay?a)0.30 b)2.30 c)23 d)48.20

Answers

45.90*0.05=2.295.The answer is $2.30 when you round it off.

If the average of three numbers is V if one number is Z and another is y what is the remaining number ?

Answers

The remaining number, using the concept of average, is  3V-y-z

It is given that

Average of three numbers = V

One number  = z

Another number = y

What is an average?

Average is the sum of observations divided by a number of observations.

Let us take the third number  x

From the question

(x+y+z)/(3) = V

x+y+z = 3V\n\nx=3V-y-z

Therefore, the remaining number is 3V-y-z

To get more about the average visit:

brainly.com/question/6504879
The formula for an average of three numbers is (x+y+z)/3.  So if V equals the average, then we find the formula
V = (x+y+z)/3
We are now looking for x.  We can divide each of the variables in the parentheses by 3, making the formula
V = x/3 + y/3 + z/3
So now bring the unwanted variables to the same side as V.
V - y/3 - z/3 = x/3
Now multiply both sides by 3 to find x.
3V - y - z = x

x = 3V - y - z

Angela spent 6 hours working and made $87. What is her hourly rate?A. $17 1/4 per hour
B. $18 1/2 per hour
C. $14 1/2 per hour
D. $15 per hour

Answers

To find how much Angela made per hour, then we need to divide the total amount made by the hours spent working.

$87 / 6hrs = $14.50/hr

The answer is C.

Susan collected 1,470 stickers and placed them in her sticker book if there are 35 stickers on each page of her sticker book how many pages of stickers does Susan have

Answers

All you need to do is divide 1470 by 35, which is 42.

How to factor 16x²-72xy+81y²

Answers

16x^2-72xy+81y^2=(4x)^2-2\cdot4x\cdot9y+(9y)^2=(4x-9y)^2\n\n=(4x-9y)(4x-9y)\n\n\n\n(a-b)^2=a^2-2ab+b^2
use the perfect square trinomial method. since 16x² is a perfect square and so is 81y² your answer would be (4x-9y)² when u multiply that out it will give u 16x²-72xy+81y²
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