(r, theta)= (8, 3/2 pi)
r=(x^2 +y^2)^(1/2)
theta= 3/2 pi
x= r(costheta)
y=r(sintheta)
x=8(cos(3/2 pi))
y=8(sin(3/2 pi))
x=8(0)
y=8(-1)
x=0
y=-8
r=((-8)^2+(0)^2)^(1/2)
r=(64+0)^(1/2)
r=8
rectangular coordinates= (0,-8)
Answer:
1001-70-336=595
Step-by-step explanation:
i think..
<h3>
Answer: 248 miles</h3>
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Work Shown:
1 hr, 30 min = 1 hr + 30/60 hr
1 hr, 30 min = 1 hr + 0.5 hr
1 hr, 30 min = 1.5 hr
The driver travels 93 miles in 1.5 hours, so his speed is
rate = distance/time
r = d/t
r = 93/1.5
r = 62 mph
In four hours, he travels
d = r*t
d = 62*4
d = 248 miles
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An alternative method is shown below
(93 miles)/(1.5 hrs) = (x miles)/(4 hours)
93/1.5 = x/4
93*4 = 1.5*x ..... cross multiply
372 = 1.5x
1.5x = 372
x = 372/1.5
x = 248
Answer: You can send or receive a maximum of 21 text messages per month.
Step-by-step explanation:
First, you need to take out the number the phone bill costs (24.99)
29 - 24.99 = 4.01
Then, you need to find out how many 0.19 fit into 4.01.
21 * 0.19 = 3.99. Any more than that and it would go over.
Answer:
x = 6
Step-by-step explanation:
These are supplementary angles.
This means that the angles add up to 180 degrees.
The first thing we can do is set 6y equal to 90, because the little red box means that is 90 degrees.
6y = 90
y = 15
Now that we have found y we can solve for x.
Plug in the y to the 5x + 4y
5x + 4(15)
5x + 60
We can set this equal to 90 again
5x + 60 = 90
5x = 30
x = 6
Therefore x is equal to 6.
<em>I hope this helps!!</em>
<em>- Kay :)</em>
