<span>B. (x + 1)2 + (y - 7)2 = 16
</span>D. (x + 2)2 + (y - 5)2 = 9
Answer:
S
ThenSn=n(a1+an)2Sn=n(a1 + an)2 , where nn is the number of terms, a1a1 is the first term and anan is the last term. The sum of the first nn terms of an arithmetic sequence is called an arithmetic series .
Step-by-step explanation:
Answer:
117
Step-by-step explanation:
13*9=117
Answer:
Y = -0.3587+0.09118X
92 %
Step-by-step explanation:
Using technology to fit the data between the variables, test score and hours of sleep; we obtain the linear model :
Ŷ = -0.3587+0.09118X
Where, x = test score ; y = hours of sleep
To obtain the test score of a student who sleep foe 8 hours using the model :
Y = 8
Ŷ = -0.3587+0.09118X
8 = -0.3587+0.09118X
8 + 0.3587 =0.09118X
8.3587 = 0.09118X
X = 8.3587 / 0.09118
X = 91.672515
X = 92 ( approximately)
There are 3 groups of 11 travellers each or 11 groups of 3 travellers each.
Since we have 33 travellers and we need to divide them into equal sized groups, we need to find the factors of 33.
<h3 /><h3>Factors of 33</h3>
So, 33 = 1 × 33 = 3 × 11
So, the two factors of 33 we require are 3 and 11.
<h3 /><h3>The groups of travellers</h3>
Since 11 × 3 = 3 × 11,
So, 3 × 11 implies that we can have 3 groups of 11 travellers each and,
11 × 3 implies that we can have 11 groups of 3 travellers each.
So, there are 3 groups of 11 travellers each or 11 groups of 3 travellers each.
Learn more about factors of a number here:
brainly.com/question/2058395
