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Answer:
The correct option is 1.
Step-by-step explanation:
If a quadratic equation is defined as

then the quadratic formula is

The given equation is

Here, a=1, b=-2 and c=-3.
Substitute these values in the above formula.


Therefore, the correct option is 1.
Answer: C
Step-by-step explanation: When triangles are similar, all of their angles should be equal to their respective angles on the other triangle.
Answer: Paired t interval for μdiff
Step-by-step explanation:
The confidence interval suitable for analysing the data described in the scenario above is the paired t test which is employed when there are two different sets of measured reading or observation for each subject. In the scenario above, the subjects are of of the different planters employed whereby the pair of measurement are the weight of tomatoes obtained for each of the two different fertilizer types applied to each of the two plants in a planter. With these data, we can measure the difference in the effectiveness of each of the store brand and homegrown compost.