All categories

3 years ago

Does the parabola open up or down 120(x+4)^2-1

Mathematics

1 answer:

inn [45]3 years ago

6 0

Answer:

Step-by-step explanation:

the number in the front is positive

You might be interested in

Find the 74th term of the arithmetic sequence -8, 0, 8

love history [14]

Answer:576

Step-by-step explanation:

-8,0,8,...

Common difference=d=8-0

d=8

First term=a=-8

Using the formula

Tn=a + d x (n-1)

T74 = 74th term

T74=-8 + 8 x (74-1)

T74=-8 + 8 x 73

T74=-8 + 584

T74=576

The 74th term=576

6 0

3 years ago

How to solve 3(n-3) = -10

Brrunno [24]

Answer:

-1/3

Step-by-step explanation:

Distribute- 3n-9=-10

Add 9 to both sides- 3n=-10

Divide both sides by 3- n=-1/3

Check- 3(-1/3)-9=-10 (-1)-9=(-10) -10=-10

6 0

3 years ago

In the media cabinet at jacquelyn's House there are 7 comedy DVDs,4 mystery DVDs,and 4 documentary DVDs.What is the probability

Readme [11.4K]

Answer:4/15

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Why are the equations w - x x = w and w x - x = w called identities?

saveliy_v [14]

They are called identities because:
w-x = 0
w = x (carry x to the other side) is the same as x = w

in the other case:
wx-x = w / divide by w on both side
x -x = 0
x = x (carry x to the other side)

In both cases the equations are the same.

5 0

3 years ago

The radius of the large sphere is double the radius of the small sphere. How many times does the volume of the large sphere than

pshichka [43]

Answer:

8 times larger.

Step-by-step explanation:

The radius of the large sphere is double the radius of the small sphere.

Question asked:

How many times does the volume of the large sphere than the small sphere

Solution:

Let radius of the small sphere =  $x$ 

As the radius of the large sphere is double the radius of the small sphere:

Then, radius of the large sphere = $2x$

To find that how many times is the volume of the large sphere than the small sphere, we will divide the volume of large sphere by volume of small sphere:-

For smaller sphere: $Radius = x$

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

$=\frac{4}{3} \pi x^{3}$

For larger sphere: $Radius = 2x$

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

$=\frac{4}{3} \pi (2x)^{3}$

Now, we will divide volume of the larger by the smaller one:

$=\frac{4}{3} \pi (2x)^{3}\div\frac{4}{3} \times\frac{\pi }{1 } \times x^{3}\\ \\ =\frac{4}{3} \pi\times8x^{3} \times\frac{3}{4\pi }\ \times\frac{1}{x^{3} }$

$\frac{4}{3}\pi\ is \ canceled\ by\ \frac{3}{4\pi } \ and\ also\ x^{3} is\ canceled\ by \ \frac{1}{x^{3} }$

Now, we have

= $\frac{8}{1}$

Therefore, the volume of the large sphere is 8 times larger than the smaller sphere.

7 0

4 years ago

Read 2 more answers