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3 years ago

15

An angle passes through the point (-7,-5). What is the compass heading of this angle?

1 answer:

umka21 [38]3 years ago

3 0

To find the angle use arc tan (-5/-7) which simplifies tips arctan(5/7). arc tan is tan to the power -1, which is also called inverse tan. The heading of the angle, if you drew this out on a graph your angle would be in the third quadrant and therefore the heading is south of west.

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HELP ASAP!!!! SO STUCK ON THIS! Will give brainliest IF CORRECT! :) please help! Be sure please!

vlada-n [284]

If I can read the #'s correctly:
add the yes answers together 23+147 = 170
add the no answers together 112+48= 160

so your ratio of haves to have nots is 170 to 160

but both sides can be divided by 10, so it can be simplified to 17 to 16.

Good Luck!

4 0

3 years ago

Read 2 more answers

Eric and Sarah both have lemonade stands. The graph below represents how many cups of lemonade Eric sells per day. The equation

Georgia [21]

Answer:

Eric

Step-by-step explanation:

At 5 days (the x axis), the y axis is 60 which is how much lemonade he sold.

sarah sold 10x or 10 x 5 days=50 cups.

‘Eric sold 60, Sarah sold 50

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3 years ago

A Petri dish containing 500,000 bacteria is used in an experiment investigating growth rates for bacteria. The table below shows

ki77a [65]

What’s the question

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2 years ago

what is the ratio for the volumes of two similar spheres given that the ratio of their radii is 4:7 A.)343:64 B.)49:16 C.)16:49

quester [9]

Answer:

Volume of the similar sphere be 64 :343 .

Option (D) is correct.

Step-by-step explanation:

Formula

$Volume\ of\ a sphere = \frac{4}{3}\pi r^{3}$

As given

The volumes of two similar spheres given that the ratio of their radii is 4:7 .

Let us assume that the x be the scalar multiple of the radi .

Radius of first sphere = 4x

Radius of second sphere = 7x

Putting the values in the formula

$Volume\ of\ first\ sphere = \frac{4}{3}\pi\times 4x\times 4x\times 4x$

$Volume\ of\ first\ sphere = \frac{4}{3}\pi\times 64x^{3}$

$Volume\ of\ second\ sphere = \frac{4}{3}\pi\times 7x\times 7x\times 7x$

$Volume\ of\ second\ sphere = \frac{4}{3}\pi\times 343x^{3}$

Thus

$\frac{Volume\ of\ first\ sphere}{Volume\ of\ second\ sphere} = \frac{\frac{4\pi\times 64x^{3}}{3}}{\frac{4\pi\times 343x^{3}}{3}}$

$\frac{Volume\ of\ first\ sphere}{Volume\ of\ second\ sphere} = \frac{64}{343}$

Therefore the ratio of the volume of the similar sphere be 64 :343 .

Option (D) is correct .

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3 years ago

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The cost of a gallon of milk is $.50 more than five times the cost of a gallon of water. If

pychu [463]

Answer:

$0.65

Step-by-step explanation:

3.75-.5=3.25

3.25/5=.65

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3 years ago