9556.72 cubic feet of water is needed to refill the tank.
Answer : A)
Standard form of equation is
The vertex form of equation is
where (h,k) is the vertex
To find x coordinate of vertex we use formula
, a=1, b=-2 and c=-6
Plug in the values
Now plug in x=1 in the equation
h= 1 and k=-7
The vertex form of equation is
Plug in the values h=1 and k=-7
<h3>
Answer: 44.63 dollars</h3>
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Explanation:
If Hannah saves 30%, then she pays the remaining 70%, which then converts to the decimal form 0.70
The 15% discount leads to her paying the remaining 85% and that converts to the decimal 0.85
We'll multiply 0.70 and 0.85 to find the net discount
0.70*0.85 = 0.595
After combining both discounts, she pays 59.5% of the original price.
If the original price was $75, then she pays 0.595*75 = 44.625 = 44.63 dollars after applying both discounts.
Answer: Jennifer didn't randomly assign participants to the control and experimental group.
Step-by-step explanation: In the scenario discussed above, Jennifer failed to perform a random assignment of the participants who took part in the survey, that is the experimental group, those who receive the treatment and the control group, those who don't. Random assignment is required in other to address the issue of bias in our experiment. She was supposed to perform a random assignment of the participants to the two groups instead of asking them to make a choice.