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3 years ago

HELLLP!! 10 POINTS OFFERED

Mathematics

2 answers:

Solnce55 [7]3 years ago

7 0

Answer:

hi, if im right i believe it would be option 2

adelina 88 [10]3 years ago

6 0

Answer:

I hope this helps

Step-by-step explanation:

180 Degree Rotation

When rotating a point 180 degrees counterclockwise about the origin our point A(x,y) becomes A'(-x,-y). So all we do is make both x and y negative.

You might be interested in

How many solutions does this equation have? -6b = -7b - 5

elixir [45]

Answer:

1 solution

Step-by-step explanation:

-6b = -7b -5

-6b +7b = -5

b = -5

8 0

2 years ago

Find the volume of the solid generated when R (shaded region) is revolved about the given line. x=6−3sec y, x=6, y= π 3, and

Dmitrij [34]

Answer:

$V=9\pi\sqrt{3}$

Step-by-step explanation:

In order to solve this problem we must start by graphing the given function and finding the differential area we will use to set our integral up. (See attached picture).

The formula we will use for this problem is the following:

$V=\int\limits^b_a {\pi r^{2}} \, dy$

where:

$r=6-(6-3 sec(y))$

$r=3 sec(y)$

a=0

$b=\frac{\pi}{3}$

so the volume becomes:

$V=\int\limits^\frac{\pi}{3}_0 {\pi (3 sec(y))^{2}} \, dy$

This can be simplified to:

$V=\int\limits^\frac{\pi}{3}_0 {9\pi sec^{2}(y)} \, dy$

and the integral can be rewritten like this:

$V=9\pi\int\limits^\frac{\pi}{3}_0 {sec^{2}(y)} \, dy$

which is a standard integral so we solve it to:

$V=9\pi[tan y]\limits^\frac{\pi}{3}_0$

so we get:

$V=9\pi[tan \frac{\pi}{3} - tan 0]$

which yields:

$V=9\pi\sqrt{3}$ ]

6 0

3 years ago

The table below lists the masses and volumes of several pieces of the same type of metal. There is a proportional relationship b

castortr0y [4]

∵ There is a proportional relationship between the mass and the volume of the places of metal.
Let volume = v and mass = m
So, the relation between volume and mass will take the form:
 v = km
where k is constant and can be calculated as follow:
when m = 34.932 , and v = 4.1 ⇒⇒⇒ k = v/m = 0.117371
when m = 47.712 , and v = 5.6 ⇒⇒⇒ k = v/m = 0.117371
when m = 61.344 , and v = 7.2 ⇒⇒⇒ k = v/m = 0.117371
when m = 99.684 , and v = 11.7 ⇒⇒⇒ k = v/m = 0.117371

∴ v = 0.117371 m

For v =15.3
∴ m = v/k = 15.3/0.117371 = 130.356 gram

The mass of a piece of this metal that has a volume of 15.3 cubic centimeters ≈ 130.4 gram (round to the nearest tenth)

3 0

3 years ago

Read 2 more answers

The floor of the cage measures 11 yardyard wide by 66 feetfeet long. One bag of shavings covers 55 square feetfeet. How many bag

bazaltina [42]

Answer:

3 3/5 bags

Step-by-step explanation:

We have to find the surface area of the floor of the cage first.

The cage measures 1 yard wide by 6 feet long.

1 yard = 3 feet

The floor of the cage is rectangular, so, the surface area of the floor of the cage is therefore:

3 * 6 = 18 square feet

One bag of shavings covers 5 square feet.

To find the number of bags we need to cover the floor, we divide the surface area of the floor by the number of bags per square feet.

The number of bags needed for the floor of the cage is therefore :

18 / 5 = 3 3/5 bags

5 0

3 years ago

Simplify. -22-10) - 92

Rzqust [24]

Answer:

2944

Step-by-step explanation:

(-22-10)-92

(-32)-92

2944

Hope it is helpful for you please follow me

5 0

3 years ago