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liubo4ka [24]
3 years ago
5

WILL MARK BRAINLIEST!!

Mathematics
1 answer:
Dafna1 [17]3 years ago
3 0

Answer:

h = 9

Step-by-step explanation:

volume = \pi \:  {r}^{2} h \\  1,386 =  \frac{22}{7}  \times 7 \times 7 \times h \\ 1,386 = 154 \times h \\ h =  \frac{1,386}{154}  \\ h = 9

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What is the solution to the following system of equations 2x+3y=3 and -3x-2y=8
SpyIntel [72]
<span>2x+3y=3
</span><span>-3x-2y=8

3y=3-2x
-2y = 8+3x

y = 1 - 2x/3
y = -4 - 3x/2

</span>1 - 2x/3 =  -4 - 3x/2

5 = - 3x/2 + 2x/3

5 = -9x/6 + 4x/6

5 = -5x/6

x = 5 * 6/-5

x = -6

No plug it in.

<span>2x+3y=3 ; x = -6

-12 + 3y = 3

3y=3+12

3y=15

y = 5

So </span>x = -6 and y = 5
3 0
4 years ago
#1 Identify the characteristics of the quadratic graph
shusha [124]
Vertex: (1,-3)
Y intercept: -3
Axis of symmetry x=1
Domain all real numbers
I only got these the rest I don’t know because I just started learning it but these are correct.
8 0
3 years ago
A national military bureau for a certain country collects data on active members in the military. Results are published in a nat
Artemon [7]

Answer:

9.193259%

Step-by-step explanation:

In order to obtain the percentage of military members in the reserves who are​ Black, we will have to multiply the percentage of Black military members in the reserve by the percentage of military members in the reserve. This is calculated as follows:

Military members in the reserves who are​ Black (%) = 77.1771​% × 11.9119​%

                                                                                      = 9.193259%

Therefore, he percentage of military members in the reserves who are​ Black is 9.193259% .

Example

For example, let assume the total number of active members in the military is 100.

To obtain the number of military members who are in the reserves, we multiply 77.1771​% by 100. This gives us 78 approximately.

To obtain the number of military members in the reserves who are​ Black, we multiply 11.9119​% by 78 we got above who are active military members in the reserves. This gives us 9 members approximately.

I wish you the best.

3 0
3 years ago
Read 2 more answers
Sandra has a $20 itunes gift card and spends $3 each month. Which of the following functions models how much money Sandra has on
SCORPION-xisa [38]

Answer:

x3-20

Step-by-step explanation:

x stands for the month 3 is the money that she is spending each month if you multiply those together you get the amount of money she has spent over x amount of months minus the 20 dollars on her gift card

8 0
3 years ago
1 2.52 Test (CS): Functions
Mumz [18]

Answer:

V=lwh=5 x 9 x 3=135cm3

Step-by-step explanation:

7 0
3 years ago
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