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4 years ago

The polar coordinates of a point are given. find the rectangular coordinates of this point.(5, 3pi/4

1 answer:

3 0

X would be r*cos theta and y would be r*sin theta.

Here, x is 5cos 135 deg = 5(-1/sqrt(3))
and y is 5* sin 135 deg = 5*(1/sqrt(3))

Write this point in the form (x,y), using the above values for x and y.

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3 women push a stalled car. Each woman pushes with a 425 N force. What is the mass of the

iogann1982 [59]

Answer:

1,500 Kg

Step-by-step explanation:

Formual for froce is given by

force = mass * acceleration

Force exerted by 1 woman = 425 N

no. of women exerting force = 3

Force exerted by 3 woman = 425 * 3 N = 1275 N

Acceleration produced by 1275 N force = 0.85 m/s^2

Using formula force = mass * acceleration

1275 = mass * 0.85 m/s^2

=> mass = 1275/ 0.85 m/s^2 = 1,500 Kg

Thus, mass of car is 1,500 Kg.

8 0

3 years ago

BRAINLIEST

Cloud [144]

10 ways I think if its wrong I'm sorry

3 0

3 years ago

Another correction (Tried these on my own hand but got confused)

kirill115 [55]

Answer: Triangle: x = 40 Line: x = 10

Explanation:
All angles of a triangle adds up to 180. So x + 50 + 90 (the square box represents a 90° angle) = 180
Simplify: x + 140 = 180
So x = 40°

A straight line is 180°
so 7x+110=180
7x= 70
x=10

7 0

3 years ago

Read 2 more answers

Conrad spent $48 on art supplies. The canvas for each of his paintings is an additional $2. He plans to sell his paintings for $

Gnom [1K]

I’m sorry I didn’t mean to tell 6

6 0

3 years ago

A flute instructor examined student progress.he found that playing a longer song does not necessarily mean that a student will h

Sunny_sXe [5.5K]

Answer:

The flute instructor can conclude that the length of the song does not have a direct variation or correlation with the number of incorrect notes.

Step-by-step explanation:

Direct variation and correlation means that as the "x" variable increases, the "y" variable will change according to it.

If the flute instructor took numerical data, for example, made a chart, and graphed it, then he would not find a trend.

It would probably look like this (see first photo). The plotted points are all over the place. ("x" is the song length, "y" is the number of incorrect notes).

If there was a correlation, then the data would look more like a straight line (see second photo).

5 0

3 years ago