2 years ago

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 :

$(x = 0 , y = -3)$

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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

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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:

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

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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

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Answer:

a.20 minutes

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Step-by-step explanation:

60 divided by 3 = 20

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$8 for 1 person

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3 years ago

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Find the area of this triangle

uysha [10]

Answer:

i think the answer is 67.5

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2 years ago