Answer:
Prime.
Step-by-step explanation:
First let's multiply our outer coefficients in this case 1 and 8, so we have 1x8=8. Now the point of this is to get the factors of 8 and see if we can get that middle term -7. Factors of 8 are 1x8, 2x4 and that's it. From there I notice that -8+1 = -7 and so:
Notice that the (x-8) and (x+8) are not the same factors, therefore the factors are not any of those answer choices and so it's prime. You can calculate the factors by using the quadratic formula, however I think that is beyond the scope of this question.
Answer:
The mean average of all "six" students is 36.83.
Step-by-step explanation:
Mean:
The mean is the sum of all scores divided by the number of scores.
A group of five students have a mean test score of "34.2." Another student has a score of 50.
This means that the sum is given by:
What is the mean average of all "six" students?
Sum of 6 students is 221. So
The mean average of all "six" students is 36.83.
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Ten because 6+4=10. Just work backwards with questions like this
4/5 = 0.8 yards for each piece of chain
or
1 yd is 3 ft
4 yds = 12 ft
12/5 = 2.4 ft for each piece of chain
