Equation with roots -10 and -8 is: y = a(x + 10)(x + 8) = a(x^2 + 18x + 80) = ax^2 + 18ax + 80a . . . . . . . . (1)
Equation with vertex at (-9, -3) is y = a(x + 9)^2 - 3 = a(x^2 + 18x + 81) - 3 = ax^2 + 18ax + 81a - 3 . . . . . . . . (2)
From (1) and (2), we have
80a = 81a - 3
a = 3
Therefore, required equation is:
y = 3x^2 + 18(3)x + 80(3) = 3x^2 + 54x + 240
Answer:
384
Step-by-step explanation:
if 1 mile is 5 mins and she cools for 7 mins so add the 5+ 7mins that is 12 so if 1 mile is 12 so 32 is ? cross multiply that is 384
56 = 0.56 × 10²
so the answer is false :)
hope this helps :)
Answer:
y = -3 - 1/2 x
Step-by-step explanation:
subtract x from both sides and divide by 2
Answer:
Option E
Step-by-step explanation:
Single-blinding refers to a kind of clinical trial in which only the researcher conducting the study knows which treatment or the participant is receiving until the trial is over.
Control Group refers to the group in an experiment that does not receive treatment by the researchers, it is used as a benchmark to measure how the other tested subjects do.
Under the random assignment, the study participants are randomly allocated to different groups, such as the experimental group, or treatment group.
Confounding can be controlled by adjusting for it after completion of a study using stratification or multivariate analysis.
The treatment group refers to the experimental groups that receive treatment in an experiment. The “group” is made up of test subjects (people, animals, plants, cells, etc.) and the “treatment” is the variable under study.
Since here we are making groups to perform the experiment away from the main workforce, the feature used here is the treatment group.
