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3 years ago

Plz help Draw the following triangle after a counterclockwise rotation about the origin.

Mathematics

1 answer:

Scorpion4ik [409]3 years ago

5 0

You have to swap to (x,y) to (y,x) and make the y negative so it would be (-y,x) and since it’s counterclockwise it would be in the 4th quadrant

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Find the H. C. F of 96 and 240 by division method <br>Please Helppp I am screwed <br>

Svetach [21]

Answer:

H.C.F. is 48

Step-by-step explanation:

I hope this will help u

5 0

3 years ago

There is a lightning rod on top of a building. From a location 500 feet from the base of the building, the angle of elevation to

Kitty [74]

<h2>Hello!</h2>

The answer is:

The height of the lightning rod is 27.4 feet.

To solve the problem, we need to use the given information about the two points of observation, since both are related (both finish and start at the same horizontal distance) we need to write to equations in order to establish a relationship.

So, writing the equations we have:

We know that the angle of elevation from the base of the buildings is 36°

Also, we know that from the same location, the angle of elevation to the top of the lightning rod is 38°.

Using the information we have:

To the top of the building:

$tan(\alpha )=\frac{DistanceToTheTopOfTheBuilding}{BuildingBase}\\\\tan(36\°)=\frac{DistanceToTheTopOfTheBuilding}{BuildingBase}$

To the top of the lightning rod:

$tan(\alpha )=\frac{DistanceToTheTopOfTheLightningRod}{BuildingBase}\\\\tan(38\°)=\frac{DistanceToTheTopOfTheLightningRod}{BuildingBase}$

Now, isolating we have:

$tan(36\°)=\frac{DistanceToTheTopOfTheBuilding}{BuildingBase}\\\\DistanceToTheTopOfTheBuilding=tan(36\°)*BuildingBase \\\\DistanceToTheTopOfTheBuilding=tan(36\°)*500feet=363.27feet$

Also, we have that:

$tan(38\°)=\frac{DistanceToTheTopOfTheLightningRod}{BuildingBase}\\\\DistanceToTheTopOfTheLightningRod=tan(38\°)*BuildingBase\\\\DistanceToTheTopOfTheLightningRod=tan(38\°)*500feet=390.64feet$

Therefore, if we want to calculate the height of the lightning rod, we need to do the following:

Let "x" the distance to the top of the building and "y" the distance to the top of the lightning rod, so:

$LightningRodHeight=y-x=390.64feet-363.27feet=27.37feet$

Rounding to the nearest foot, we have:

$LightningRodHeight=y-x=390.64feet-363.27feet=27.37feet=27.4feet$

Hence, the answer is:

The height of the lightning rod is 27.4 feet.

Have a nice day!

5 0

3 years ago

THIS IS VERY IMPORTANT! PLEASE HELP ME!!!

frez [133]

<span>Equation at the end of step 1 :</span> (8x + 2 • (x - 7)) - (10x - 14) = 0 <span>Step 2 :</span>Pulling out like terms :

<span> 2.1 </span>     Pull out     10x-14

After pulling out, we are left with :
      (10x-14) • ( 1 +( (-1) ))

<span>Step 3 :</span>Pulling out like terms :

<span> 3.1 </span> Pull out like factors :

10x - 14 = 2 • (5x - 7)

<span>Equation at the end of step 3 :</span> 0 = 0

4 0

3 years ago

Read 2 more answers

Please help me solve this problem

bulgar [2K]

Answer:

D, 225

Step-by-step explanation:

Because this equation already has a1, it's useless to test with that, so instead solve for a2.

You would have a2 - 5a1, which would get you a2 = 5(9) because we already know what a1 is, which is 9. a2 = 45

Now we have a2, which is 45, so now we solve for a3

We would have a3 = 5a2 = a3 = 5(45) which is 225 which is a3

Also thanks for the fat 18 points dude, you really put 36 points into this one big value hope this one helped you a lot

3 0

3 years ago

Thank you to whoever helps <3

Igoryamba

Np and the answer is B.35 because you are not supposed multiply your are supposed add for an example 20 + 15 = 35 and if you multiply which you are not supposed to you would get 300 but that wouldn’t be the right answer cuz 300 is not one of the choices so you answer would be B)35

Hope that helped you out oh and can you give me the brainliest

4 0

3 years ago