Answer:
3 1/4
Step-by-step explanation:
difference between the 2 = -5 3/4-(-2 1/2) = -5 3/4+2 1/2 = -3 1/4
since distance is +ve, answer is 3 1/4
Answer:
I think it would be 11.2
Step-by-step explanation:
because if I is 10 and it only goes across to the other side then it would only be 11.2
Answer:
The 31st term is 84
Step-by-step explanation:
Here, we want to calculate the 31st term of the sequence
Firstly, we need to determine the type of sequence herein
As we can see;
200-204 = 196-200 = -4
The relationship between the numbers is a sum, that means the sequence is arithmetic
and; -4 represents the common difference
Mathematically, the nth term of an arithmetic sequence can be calculated using the equation;
Tn = a+ (n-1)d
with respect to the question;
a is the first term = 204
n = 31 and d = -4
Substituting these numbers;
T31= 204 + (31-1)-4
T31 = 204 - 4(30)
T31 = 204 - 120
T31 = 84
By Cosine Rule:
CosT = (s² + r² - t²) /(2sr)
<span>CosT = (10² + 11² - 7²) /(2*11*10)
</span>
<span>CosT = 172 /220 </span>≈ 0.7818
T = Cos⁻¹(0.7818)
T ≈ 38.57°
T ≈ 38.6°
