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aleksklad [387]
3 years ago
12

Factorise the expression

Mathematics
1 answer:
serg [7]3 years ago
3 0

Answer:

2x • (2x-1) • 4 + 1     16x2 - 8x + 1

———————————————————  =  —————————————

         4                    4      

Step-by-step explanation:

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Help please what is the answer?
Dmitrij [34]
(pemdas), parenthesis then exponents.
7 * 2 = 14
14^ 7 = 105413504
8 0
3 years ago
A drawer contains 12 brown socks and 12 black socks, all unmatched. A man takes socks out at random in the dark. 21. Required in
avanturin [10]

Answer:

6  socks

Step-by-step explanation:

What we must do is calculate the probability of this happening, that he takes out two black socks in the first two taken out.

There are 12 black socks and in total they are 24, therefore the probability of drawing 1 is:

12/24

and now the probability of getting another one is 11 (there is one less outside) and in total they are 23:

11/23

the final probability is the multiplication of these events:

(12/24) * (11/23)

P = 0.24

Now, to know how many you should get, we multiply the probability by the total number of socks, that is:

0.24 * 24 = 5.76

So you must take out at least 6 socks for the above to happen.

6 0
3 years ago
The diagonal of a TV screen is 26 inches. The screen is 18.8 inches wide. How high is the screen? Round to the nearest hundredth
cluponka [151]
26^2 = 18.8^2 + H^2
H^2 = 322.56
H = 17.96 inches
8 0
3 years ago
1 over 2z = 3 over 4. Which of the following equals z in this equation? 3 over 8 2 over 3 1 over 1 over 2 2 over 2 over 3
Yanka [14]
The answer is

C. 1 1/2

100% Verified

Hope This Helps!
5 0
3 years ago
Read 2 more answers
A toy baseball bat comes with 3 plastic balls. The balls are in a box that is a rectangular solid. The box is just big enough to
vodomira [7]

Answer:

31.4 in³

Step-by-step explanation:

The box is just big enough to hold the 3 balls, so it must have a length 6 times the radius of each ball, a width 2 times the radius, and a height 2 times the radius.

The volume of the box is:

V = (6r)(2r)(2r)

V = 24r³

The volume of the 3 balls is:

V = 3 (4/3 π r³)

V = 4πr³

So the volume of the air is:

V = 24r³ − 4πr³

V = (24 − 4π) r³

Since r = 1.4 inches:

V = (24 − 4π) (1.4 in)³

V ≈ 31.4 in³

5 0
3 years ago
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