What is the domain and the range of (1,-1), (2, -3), (0,5), (-1,3), (4,-5), (-1,5), (4,-4)} ?
padilas [110]
Answer:
Domain: {-1, 0, 1, 2, 4}
Range: {-5, -4, -3, -1, 3, 5}
Step-by-step explanation:
The domain is all the x values.
The range is all of the y values.
The answer is 45 total.
So Tommy is 22 years old while his Father is 45.
45 years of age total, tommy is 23 years younger so 45 - 23 = 22 so tommy is 22 while his father is 45.
Answer:
yeah it is an expression
Explanation:
An expression may refer to any of the following:
A combination of letters, numbers, or symbols used to represent a value of a variable. ..
Answer:
i find the design and functionality very coonfusing and poorly done, voice mail messages will not play, endlessly loading, even tried reinstalling, doesn't help, update: seems to be that you have to force quit the app and then start it again in order to listen to any voice messages, that is a major flaw and why has this been going on for so many months that I've lost count yet no one at the mighty Microsoft corporation seems to be competent enough to fix this?
Answer:
D. 4(2x² + 4x - 6); 130.0 inches
Step-by-step explanation:
Margot is sewing a ribbon on a seam along the perimeter of a square pillow. The side length of the pillow is 2x²+1 inches. She plans to make a similar pillow, including the ribbon, whose side length is 4x−7 inches. What expression can be used for the length of ribbon that she needs for both pillows, and what is the length if x = 3.5?
2x2+4x−6; 22.0 inches
2x2+4x−6; 32.5 inches
4(2x2+4x−6;) 88.0 inches
4(2x2+4x−6;) 130.0 inches
Perimeter of a square = 4 * side length
1- First square pillow
length = 2x²+1 in
Perimeter of first pillow = 4 * (2x²+1) in
Second square pillow
length = 4x-7 in
Perimeter of second pillow = 4(4x-7) in
Total ribbon length required = perimeter of first square pillow + perimeter of second square pillow
Total ribbon length required = 4(2x²+1) + 4(4x-7)
Factorise
4 is the common factor
=4(2x²+1)+(4x-7)
=4(2x²+1+4x-7)
=4(2x²+4x-6)
Total ribbon length required=4(2x²+4x-6)
If x=3.5
Total ribbon length required=4(2x²+4x-6)
=4{2(3.5)²+4(3.5)-6}
=4{2(12.25)+14-6)
=4(24.5+14-6)
=4(32.5)
=130.0 inches
