Answer:
25
Step-by-step explanation:
a² + 7a + 7
a = 2
Plug in the value of 2 for every occurance of a.
(2)² + 7(2) + 7
First, solve the exponent.
4 + 7(2) + 7
Now, multiply.
4 + 14 + 7.
Add.
25
This is your answer.
Hope this helps!
Answer:
x³ - 5x² + 81x - 405 = 0
Step-by-step explanation:
Complex roots occur in conjugate pairs.
Thus given x = - 9i is a root then x = 9i is also a root
The factors are then (x - 5), (x - 9i) and (x + 9i)
The polynomial is the the product of the roots, that is
f(x) = (x - 5)(x - 9i)(x + 9i) ← expand the complex factors
= (x - 5)(x² - 81i²) → note i² = - 1
= (x - 5)(x² + 81) ← distribute
= x³ + 81x - 5x² - 405, thus
x³ - 5x² + 81x - 405 = 0 ← is the polynomial equation
Answer:
1. false
2.the reason it is False is because Jamiere ploted the numbers wrong.
3.(what are the drop-down choices?) answer: -4
4.-5 -2 +3= -4
Sorry if some are wrong hope you ace it! (:
Answer:
1 answer is A because the data was added and then divided by the number of the given data which sum up to 39
2. the answer is C since it applies to the first question
Answer:
the x-axis
Step-by-step explanation:
because the only thing that changed was the - number
