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34kurt
3 years ago
11

Describe in detail, what happens when the point on the unit circle is in quadrant 1 compared to when the point on the circle is

in quadrant 2
Mathematics
1 answer:
Vlad1618 [11]3 years ago
4 0

Answer: The points in Quadrant I is just a reflection across y-axis of the points in Quadrant Ii, that is the x- co ordinates just changes the sign.

Step-by-step explanation:

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It took 4 hours to clean 10 houses, how many houses could be cleaned in 8 hours?
aleksklad [387]

Answer:

3 1/2 houses

Step-by-step explanation:

To find the unit rate we must divide 4 by 10

4 hours divided by 10 house = 1/4

1/4 houses per hour

8 hours times 0.4= 3.2 houses

4 0
3 years ago
Read 2 more answers
See picture below. What is the difference between 4∑n=1 2n+1 and 4∑i=1 (2i+1)?
kondor19780726 [428]

Answer:

3

Step-by-step explanation:

\sum 2n+1= \boxed{\big( \sum_{i=1} ^{4}2n \big) +1}

And,

$ \sum (2i+1)= \sum (2i)+ \sum_{i=1} ^{4} (1) $

$=\sum_{i=1} ^{4}(2i) + 1+1+1+1 $

$=\boxed{\Big(\sum_{n=1} ^{4}(2n)\Big) +4}.... \text{Variable in Summation doesn't matter}$

Hence the difference is 3.

8 0
3 years ago
Solve the equations if possible <br><br> * -5×=×+6(1-×)<br><br> *(2×-5)²=(2×-1)(2×+1)-10(2×-1)
Allushta [10]
-5x = x + 6(1-x)

-5x = x + 6(1) + 6(-x)
-5x = x + 6 -6x
-5x = x - 6x + 6
-5x = -5x + 6
-5x + 5x = 6
0 = 6  Not equal. No solution.

(2x-5)² = (2x-1)(2x+1) -10(2x-1)
(2x-5)(2x-5) = (2x-1)(2x+1) - 20x + 10
2x(2x-5)-5(2x-5) = 2x(2x+1)-1(2x+1) - 20x + 10
4x² - 10x -10x + 25 = 4x² + 2x - 2x -1 - 20x + 10
4x² - 20x + 25 = 4x² - 20x - 1 + 10
4x² - 20x + 25 = 4x² - 20x - 9

Not equal. No solution.

8 0
3 years ago
PLS HELP AND DONT PUT LINKS
Verdich [7]

Answer:

add more pts to get answered

Step-by-step explanation:

8 0
2 years ago
A regular regular pentagon has an apothem measuring 3 cm and a perimeter of 21.8 cm. What is the area of the pentagon, rounded t
lana [24]

Answer:

The area of the pentagon is 32.7 cm.

Step-by-step explanation:


3 0
3 years ago
Read 2 more answers
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