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nydimaria [60]
2 years ago
14

Question 1 (1 point)

Mathematics
1 answer:
il63 [147K]2 years ago
6 0

Answer:

Excluding the shipping fee -

23 - 4 = 19

For each book-

19/5

= $3.8

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Find the rectangular coordinates of the point ( -3, 1/2 π)
alexdok [17]

Answer:

x = -3 cos (\frac{\pi}{2})= 0

y = -3 sin (\frac{\pi}{2})= -3

And then the rectangular coordinates for this case are :

(x = 0 , y = -3)

Step-by-step explanation:

We have the following point given P = (-3, \frac{\pi}{2}) and we want to conver from polar to rectangular coordinates and we need to use the following formulas:

x = r cos \theta

y = r sin \theta

For this case we have that:

r = -3

And:

\theta = \frac{\pi}{2}

Replacing we got:

x = -3 cos (\frac{\pi}{2})= 0

y = -3 sin (\frac{\pi}{2})= -3

And then the rectangular coordinates for this case are :

(x = 0 , y = -3)

4 0
3 years ago
Harry created a canvas painting on a square canvas. He then placed an order for a new rectangular canvas. The side length of the
sveta [45]

Answer:

1.x^2

2.x+8

3.x

4. 8x

Step-by-step explanation:

Length of old is x inches.

Because it is square we have that area of the old canvas : x^2

When we read : width of new is increased by 8 so : x+8

Length is x.

The difference of areas:

Old canvas : A1=x^2

New canvas : A2=x(x+8)=x^2+8x

Now we can find A2-A1:

x^2+8x-x^2=8x

8 0
3 years ago
A robot can complete 3 tasks in hour. Each task takes the same amount of time. 10 a. How long does it take the robot to complete
maksim [4K]

Answer:

a.20 minutes

b.3 tasks

Step-by-step explanation:

60 divided by 3 = 20

7 0
2 years ago
Four friends paid a total of $32 for movie tickets. What is the ratio $32 for 4 people written as a unit rate?
ddd [48]

32/4=8/1

$8 for 1 person

6 0
3 years ago
Read 2 more answers
Find the area of this triangle
uysha [10]

Answer:

i think the answer is 67.5

3 0
2 years ago
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