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3241004551 [841]
3 years ago
15

A box contains five keys, only one of which will open a lock. keys are randomly selected and tried, one at a time, until the loc

k is opened (keys that do not work are discarded before another is tried). let y be the number of the trial on which the lock is opened
Mathematics
1 answer:
alukav5142 [94]3 years ago
4 0
Each key is 1/5 the way for the door to be open
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What are the x and y intercepts of the line described by this equation? 4x-3y=12.3
Nataly [62]
X-intercept is when y=0; 

4x-3(0)=12.3 
4x=12.3 
x=12.3/4 
x=3.075 (x-intercept) 

y-intercept is when x=0 

4(0)-3y=12.3 
-3y=12.3 
y=12.3/-3 
y=-4.1 (y-intercept) 

Hope I helped :) 
6 0
3 years ago
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Find the additive inverse. <br> 6
Irina18 [472]
-6 it is just the opposite of the number. So a positive would be a negative and a negative a positive. So the answer to your question is -6. 
6 0
4 years ago
What formula do we use to find area of a circle?
mixas84 [53]

Answer:

Your answer is A.

Step-by-step explanation:

When finding the area, you multiply π (3.14) and the radius (r). Then, you square the product (x2).

So, it is A = πr2

Hope this helps! :)

8 0
3 years ago
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Edward has several missing assignments in his math class with a total of 274 problems to complete. His goal is to complete 4 pro
brilliants [131]
Part a I am pretty sure it is a pattern so 4 plus 2 is 6, 6 plus 3 is nine and then 9 plus 4 is 13 Then 13 plus 5 is 18

Answer is 18

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5 0
3 years ago
(05.03)Calculate the area of the irregular polygon shown below: Image of letter E with height of 12 and width of 7 and inside sp
mart [117]

Answer:

24 square inches

Step-by-step explanation:

We are given Image of letter E with height of 12 and width of 7

Inside space of height of 5 and width of 6

Initially calculate the area of rectangle ABKL = length *width = 12*7= 84 square inches

Now to get the area of given figure subtract the area of rectangle CDFE and HGJI from the rectangle ABKL

Area of CDEF = Area of HGJI because the length and width of the rectangles is same

Thus Area of CDEF = length *width =5*6 = 30 square inches

Thus the Area of HGJI = 30 square inches

Now subtract the area of both rectangles from the area of rectangle ABKL

⇒84-(30+30)

= 24 square inches .

Hence  the area of given figure LETTER E = 24 square inches .


3 0
3 years ago
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