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3 years ago

How do I graph -2=-2x+y

Mathematics

1 answer:

igor_vitrenko [27]3 years ago

6 0

You must first set the y by itself. And use the slope formula to find the slope. 2 would be the point for the y axis

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3. Two cars are parked, 150m apart, and on opposite sides of a building. A camera on the top of the building rotates and can vie

allsm [11]

Answer:

<em>The building is 61.5 m tall</em>

Step-by-step explanation:

The image below is a diagram where all the given distances and angles are shown. We have additionally added some variables:

h = height of the building

a, b = internal angles of each triangle

x = base of each triangle

The angles a and b can be easily found by subtracting the given angles from 90° since they are complementary angles, thus:

a = 90° - 37° = 53°

b = 90° - 42° = 48°

Now we apply the tangent ratio on both triangles separately:

$\displaystyle \tan a=\frac{\text{opposite leg}}{\text{adjacent leg}}$

$\displaystyle \tan 53^\circ=\frac{150-x}{h}$

$\displaystyle \tan 48^\circ=\frac{x}{h}$

From the last equation:

$x=h.\tan 48^\circ$

Substituting into the first equation:

$\displaystyle \tan 53^\circ=\frac{150-h.\tan 48^\circ}{h}$

Operating on the right side:

$\displaystyle \tan 53^\circ=\frac{150}{h}-\tan 48^\circ$

Rearranging:

$\displaystyle \tan 53^\circ+\tan 48^\circ=\frac{150}{h}$

Solving for h:

$\displaystyle h=\frac{150}{\tan 53^\circ+\tan 48^\circ}$

Calculating:

h = 61.5 m

The building is 61.5 m tall

5 0

3 years ago

Is -5/11 equivalent to -5/-11 ? Why or why not?

bekas [8.4K]

No bucease it has a negative on the 11 and the other one don’t

5 0

2 years ago

the gas tank on toms car holds 20 gallons of gas. The fuel gauge of her car shows that the tank is 3/4 full. How many gallons of

Ahat [919]

Simples! It's 15,

Hope it helped

4 0

2 years ago

Read 2 more answers

The vet says Ray's puppy will grow to be at most 28 inches tall. Ray's puppy is currently 1 foot tall. How much more will the pu

Nat2105 [25]

28=12+x

28 represents how tall he will get, 12 represents how tall he is in inches, and x is how much he still has left to grow! Hope it helps!

4 0

2 years ago

What is the volume of this container?

Keith_Richards [23]

Answer:

The volume of the container is $56\ in^{3}$

Step-by-step explanation:

we know that

The volume of the figure is equal to

$V=Bh$

where

B is the area of the base

h is the height of the figure

Let

$h=4\ in$

Find the area of the base B

$B=(4*4)-(1*2)=14\ in^{2}$

substitute

$V=14*4=56\ in^{3}$

3 0

3 years ago