3 years ago

HELP PLZZZ

Mathematics

1 answer:

zhuklara [117]3 years ago

6 0

none of the above, -90 and 270 are the same position on the unit circle

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Which is a right triangle?<br> 10, 13,8<br> 7, 9, 16<br> 4. 8. 12<br> 36, 27, 45

geniusboy [140]

Answer:

get a piece of graphing paper and count out the squares and then when you make the triangles you should have your answer.

Step-by-step explanation:

all i know is that it's not the third one hope this helps!

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Jim paddles from one shore of a lake 3 miles wide at 4 mph, and John paddles from the opposite shore at 5 mph. How long will the

Tomtit [17]

I believe its answer C

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meteroloogist track severe stoms using Doppler radar. A polar grid is used to measure distances as the storms progress. If the c

FinnZ [79.3K]

Answer:

$(x-h)^2+(y-k)^2= (r+ 40 )^2$

Step-by-step explanation:

It is given that a meteorologist is using a Doppler radar to find out the distance of the storm as it passes using a polar grid.

The origin of the radar screen is its center.

And the distance between each ring is 10 miles from the center.

So let :

r = radius

h and k = be the coordinates of the center.

So the equation of a circle is :

$(x-h)^2+(y-k)^2= r^2$

Now the equation of the fourth circle when the radius changes by 10 miles is :

$(x-h)^2+(y-k)^2= (r+ 40 )^2$

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3 years ago

Lisa purchased a hat for $10, a purse for $20, and a book for $23. The sales tax rate was 7.2 percent. What was the total amount

shusha [124]

10+ 20+ 23 = 53
53 x 0.072 = 3.816
53 + 3.82 =
$56.82

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3 years ago

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What is the quotient of 8 and 72.16

Wittaler [7]

72.16./8 is equal to 9.02.

72 divided by 8 is 9.

,16 divided by 8 is .02.

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3 years ago