Answer: first one B/the second one and c/the third one for the next question
Step-by-step explanation:
Answer:
y ⋅ (−3 − 7.8 ⋅ x)
Step-by-step explanation:
Answer:
16.2 foot shadow
Step-by-step explanation:
Let the shadow cast by 27 foot tree be x.
Using ratio and proportions,
18 / 30 = x / 27
(18 x 27) / 30 = x
x = 486 / 30
x = 16.2
Total =45
Black hair=21*360/45=168
Blonde=11*360/45=88
Brown=9*360/45=72
Red=4*360/45=32
<h3>The sum expressed in sigma notation is:</h3>

<u><em>Solution:</em></u>
Given that,
11 + 17 + 23 + 29 + 35 + 41
We have to express the sum in sigma notation
Analyse the series
5 + 6(1) = 11
5 + 6(2) = 17
5 + 6(3) = 5 + 18 = 23
5 + 6(4) = 5 + 24 = 29
5 + 6(5) = 5 + 30 = 35
5 + 6(6) = 5 + 36 = 41
<em><u>Thus the series goes on like this:</u></em>
5 + 6(n) , where n = 1 to 6
<em><u>This can be expressed in sigma notation as:</u></em>

<em><u>We can expand the sigma notation and verify the results</u></em>
