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g100num [7]
3 years ago
13

The angle of elevation of a ladder leaning against a wall is 60 degree and the foot of the ladder is 4.6 m away form the wall.Th

e length of the ladder is

Mathematics
1 answer:
Irina-Kira [14]3 years ago
4 0

Answer:

The length of the ladder is 9.2m

Step-by-step explanation:

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x + 3y = 7 x - 3y = 1 Solve the system of equations. A) x = 4, y = 1 B) x = 1, y = 4 C) x = - 2 3 , y = 3 D) x = 3, y = - 2 3
Alik [6]
X+3y=7
x-3y=1
add them together

x+3y=7
<u>x-3y=1 +
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2x=8
divide 2
x=4
subsitute
x+3y=7
4+3y=7
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divid 3
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x=4
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answer is A
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6 0
3 years ago
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Please help!! the table shows the number of hours that a group of friends spent in their first week training to run a marathon.
saw5 [17]
So if they all add 4 hours to their time then they have:
Jeff 9
Mark 14
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so now to find the mean you add all the numbers together to get 76 and then you divide it by the number of people (7 people) so 76 divided by 7 equals 10.8571429 and that's the mean.

Now to find the median you put all the numbers in order from least to greatest: 9;9;9;11;11;13;14 and you take the number in the middle but since both 11 and 11 are in the middle you take the mean of them and the mean of them is 11 so the median of the numbers is 11

now to find the range you take the largest number (14) and you subtract the smallest number (9) so 14 - 9 is 5 so 5 is the range

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8 0
3 years ago
What is the standard form to number 3
Leto [7]
What’s number three?
7 0
3 years ago
Here is some information about a play starts at 7:30pm first act last 46 minutes interval lasts 20 minutes second act last 53 mi
Yuki888 [10]

Answer:

9:29 PM

Step-by-step explanation:

Let us add the number of minutes the first act, interval and second act lasted:

46 + 20 + 53 = 119 minutes

Converting this to hours and minutes:

60 minutes = 1 hour

119 minutes = 1 hour 59 minutes

Therefore, the time that the second act ends is:

  H       M

  7   :   30 PM

+ <u> 1    :  59</u>  

 <u> 9   :   29 </u>

<u />

The second act will end by 9:29 PM

8 0
2 years ago
I need help with this please
yKpoI14uk [10]
D since it looks pretty difficult
5 0
3 years ago
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