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love history [14]
3 years ago
7

You dropped two coins. What is the probability that they will both land on heads?

Mathematics
2 answers:
ahrayia [7]3 years ago
8 0

Answer: 25%

Both of them (the coins)

1/2 x 1/2 = 1/4 or 25%

VMariaS [17]3 years ago
5 0

Answer:

50/50

Step-by-step explanation:

they both have 2 sides. half of that is %50

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Find the volume of a cone with a base radius of 3 cm and a height of 9 cm
katovenus [111]

The volume of a cone is 84.78 cm                

<u>Step-by-step explanation</u>:

<u>Given</u>:

radius = 3 cm and

height = 9 cm

<u>To Find</u>:

The Volume of a Cone

<u>Formula</u>:

The Formula for the volume of a cone is

V=πr2 *h/3

<u>Solution</u>:

V=πr2 *h/3

π value is 3.14

V= 3.14*(3)^2*9/3

V=3.14*9*3

V= 84.78 cm

Therefore the volume is 84.78 cm.

5 0
4 years ago
Given the following signal:  x(n) = {4, −1, 2, 5, − 2, 3}  Compute the 6-point DFT of x(n) directly from the DFT equation  −
FrozenT [24]

Answer:

Computing the 6-Point DFT of x(n), where X = 0,1,2,3,4,5

x(0) = 11

x(1) = 21/8 -j13/8

x(2) = 27/8 + j33/32

x(3) = 1139/256 + j91/256

x(4) = 4389/1024

x(5) = 4.14685 - j1379/8192

Step-by-step explanation:

See the picture for workings.

Given X(n) = { 4, -1, 2, 5, -2, 3}

Six point DFT implies that N = 6

Step 1 = write out equation X(k)

Step 2 = substitute "Wn" in the equation X(k) to give a new equation

Step 3 = when N=6, substitute for "N" in the new equation and simplify the new X(k) equation.

Step 4 = use 0, 1, 2, 3, 4, 5 in finding the DFT

4 0
3 years ago
If :2,- 1 are the two roots of the equation : x2 + a X + b = 0 ,<br>then find the values of a , b​
harina [27]

Step-by-step explanation:

I'm not sure if this correct or not

7 0
3 years ago
Can i get a lil help here, lollolll
Ratling [72]

Answer:

5 + 2 = 7

4 squared = 16

16 - 7 = 9

value = 9

8 0
3 years ago
Is (1,3) a solution to this system of equations?<br> 4x+5y=19<br> x+5y=16<br><br> ​
Yuri [45]

Answer:

yes

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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