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s344n2d4d5 [400]
3 years ago
15

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

Mathematics
1 answer:
inn [45]3 years ago
6 0

Answer:

up

Step-by-step explanation:

the number in the front is positive

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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:

<u>Let radius of the small sphere = </u>x<u />

<u>As the radius of the large sphere is double the radius of the small sphere:</u>

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 <em><u>divide the volume of large sphere by  volume of small sphere:-</u></em>

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} }

<u>Now, we have</u>

= \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
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