Answer:
D
Step-by-step explanation:
Given
n² - n - 42
Consider the factors of the constant term (- 42) which sum to give the coefficient of the n- term (- 1)
The factors are - 7 and + 6 , since
- 7 × + 6 = - 42 and - 7 + 6 = - 1 , then
n² - n - 42 = (n - 7)(n + 6) ← in factored form
Answer:
1273.95
Step-by-step explanation:
it is that because the hundredth place is two from the right of the decimal.Also the 8 rounds the 4 up to a 5.
Answer:
<em>The cosine of the complementary angle to 38° is 0.62. </em>Answer: d
Explanation:
<u>Complementary Angle</u>
Two angles x and y are complementary if
x+y=90°
The complementary angle of 38° is 90°-38°= 52°
Now use a calculator to find the approximate value of
Rounding to two decimal places:
a. Incorrect. The cosine of 52° is not 0.68
b. Incorrect. The cosine of 52° is not -0.16
c. Incorrect. The cosine of 52° is not -0.22
d. Correct. The cosine of 52° is 0.62 to two decimal places.
Answer:
53 54 55
Step-by-step explanation:
Consecutive Integers are integers that go one after the other unless explained otherwise, so 53, 54 and 55 add up to 162.
Answer:
0.
Step-by-step explanation:
n^2 - 2n.
The first term is when n = 1 so it is 1^2 - 2*1
= -1.
The second term is 2^2 - 2*2
= 0.