Answer:
D
Step-by-step explanation:
To find the discriminant you do b^2-4(a)(c), which in this case gives you -28. If your discriminant is less than zero, you will have no real roots.
Nina's rate is 12.7 mph and Sophia's rate is 10 mph. Therefore, Nina is faster.
G(-4) =1
i hope this helps!
Answer:
c. the biology test
Step-by-step explanation:
To answer this problem we need to calculate the z-score of both tests, using the formula:
z = (x - μ) / σ
Where x is Sue's score, μ is the mean, and σ is the standard deviation.
- For the <u>biology test</u>, the z-score is:
z = (76 - 70) / 7 = 6/7 = 0.857
- For the <u>math test</u>, the z-score is:
z = (76 - 75) / 10 = 1/10 = 0.100
Because the z-score for the biology test is greater than the z-score for the math test, Sue did better in the biology test, in comparison to the rest of the class.
Answer:
Step-by-step explanation:
Invert and multiply the second fraction.
All 4 parts of the two fractions can be factored into simpler factors.
Numerous cancelations can occur
- (x - 5) [top right with x - 5 bottom left]
- (x - 2) [top left with x - 2 bottom right]
Answer
