Answer: 70
Step-by-step explanation:
Because opposite sides of a parallelogram are equal, AB=CD. So,
2x-10=x+30
x=40
Therefore, AB=2(40)-10=70
Answer:
Solving proportions is simply a matter of stating the ratios as fractions, setting the two fractions equal to each other, cross-multiplying, and solving the resulting equation.
Example
1)
2)
See photo for solution and mark me as brainliest if you think i helped!
Answer: 2 independent sample test of proportions
Step-by-step explanation:
The teo independent sample test of proportion is also referred to as the two proportion z-test and it simply allows the researcher to compare the two proportions in order to ascertain if they're the same or not.
In this case, the null hypothesis will be that that the proportions given in the research are the same while the alternate hypothesis will be that there is a difference between the proportions given.
There are 36 in in a yard
36 in ------> 1 yd
99 in ------> x
x = (99)(1)/36
x = 2.75
99 inches equals 2.75 yards and that is the amount of trim that Mandy needs to go around the entire quilt
