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3 years ago

Can you crack the code? question in attached file.

Mathematics

1 answer:

Helen [10]3 years ago

3 0

Step-by-step explanation:

Given : options for key lock

2 9 1 - one number is correct and well placed

2 4 5 - one number is correct but wrong placed

4 6 3 - Two numbers are correct but wrong placed

5 7 8 nothing is correct

5 6 9 one number is correct but wrong placed

To find : code to open lock

<h3>Solution:</h3>

2 9 1 - one number is correct and well placed

2 4 5 - one number is correct but wrong placed

Hence 2 can not be correct number

5 7 8 nothing is correct

so 2 , 5 , 7 & 8 are not the number in code

2 4 5 - one number is correct but wrong placed

2 & 5 are not correct

hence 4 is correct but wrong placed

4 6 3 - Two numbers are correct but wrong placed

Hence location of 4 is defined as 1st & 2nd position are bot correct

and out of 6 & 3 one has to be correct

x x 4

2 9 1 - one number is correct and well placed

1 can not be well placed as last position is already taken

hence 9 is correct & well placed

x 9 4

5 6 9 one number is correct but wrong placed

9 is the number

hence 6 can not be correct

out of 6 & 3 - 3 has to be correct

3 9 4 is the code

<h3>Hope this helps.</h3>

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PLEASE HELP ASAP! THANK YOU

Dafna1 [17]

Answer:

39 m.

Step-by-step explanation:

The area of a triangle is calculated by the expression given as:

Area = bh/2

where b is the base and h is the height.

We calculate as follows:

270 = b (15) / 2

b = 36

hypotenuse = sqrt ( 15^2 + 36^2 ) = 39

4 0

3 years ago

Sean bought a laptop and a printer.

stealth61 [152]

Answer:

£102.04

Step-by-step explanation:

£1250 - £1100 = £150

printer sold for £150

£150 = 147%

1% = 1.0204

100% = 102.0408

to 2dp = £102.04

3 0

2 years ago

which transformation causes the described change in the graph of the function y = cos x? the transformation results in a horizon

luda_lava [24]

The transformations that can occur to the graph of the function y = cos x that will exhibit changes would be changes to the angle, or changes to the coefficient. The transformations can be viewed as follows:

y = cos x transforms to y = cos (kx)

k > 1 ; a horizontal shrink occurs
0 < k < 1 ; a horizontal stretch occurs

y = cos x transforms to y = A cos x

|A| > 1 ; a vertical stretch occurs
|A| < 1 ; a vertical shrink occurs

5 0

3 years ago

Suppose you & your friends are going to the movies.The amount of money you spend for tickets varies directly with the number

mojhsa [17]

This is the equation you need to use: y = kx
So, let's put it this way:
y can be the total amount of money you spend (so $48), and x the number of people (6)

y=kx
48=k*6
k = 48/6
k = 8

The constant variation, and the price of one ticket is 8.

3 0

3 years ago

A horse corral is situated on a triangular plot of land. Two sides of the plot are 150 feet long and they meet at an angle of 55

Brrunno [24]

Answer : d. 438.5 ft

The diagram for the given statement is attached below.

Two sides AB and AC are equal so the angle B = angle C

WE know sum of three sides of a triangle = 180

angle A + angle B + angle C = 180

55 + B + C = 180

B + C = 180 -55 = 125

B and C are equal so we divide 125 by 2

angle B = 62.5 and angle C = 62.5

Now we apply sin law

$\frac{sin A}{a} = \frac{sin B}{b}$

$\frac{sin 55}{a} = \frac{sin 62.5}{150}$

150 * sin(55) = sin(62.5) * a

122.8728066 = sin(62.5) * a

a = $\frac{ 122.8728066}{sin(62.5)}$

a= 138.52 feet

To find perimeter we add all the sides

150 + 150 + 138.52 = 438.52 feet

5 0

3 years ago

Can you crack the code? question in attached file.​

Can you crack the code? question in attached file.