This is how you do it! Please let me know if you need help.
The t-value measures the size of the difference relative to the variation in your sample data. Put another way, T is simply the calculated difference represented in units of standard error. The greater the magnitude of T, the greater the evidence against the null hypothesis.
<span>1x + 2x = 15
3x = 15
3x/3 = 15/3
x = 5
Gemma = 1x, Zak = 2x therefore Gemma = 5 and Zak = 10</span>
Create expressions for the length and width of the rectangle.
- length (l): x - 6
- width (w): x
Perimeter: 2l + 2w
Substitute (x - 6) for l and (x) for w.
Distribute 2 inside the parentheses.
Combine like terms.
Add 12 to both sides.
Divide both sides by 4.
Substitute 16 for x into the length and width of the rectangle.
- length: (16) - 6 = 10
- width: (16) = 16
Answer:
Step-by-step explanation:
First you have to do everything in the brackets, or [ ]. -7+-3--8 is equivalent to 8-3-7, which equals -2. After that you have to do the braces, or {}. That is -5--2, which is the same thing as 2-5, which equals -3. Finally, you can finish it out. -4--2--3 is equivalent to 3+2-4, which equals 1. Hope this helps!
