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WITCHER [35]
3 years ago
15

A repairman leans the top of an 26 foot ladder against the

Mathematics
1 answer:
Natalija [7]3 years ago
6 0

Answer:

26.42139285

Step-by-step explanation:

26x26 + 4.7x4.7 = c2

676 + 22.9 =c2

698.09=c2

square root of 698.09=26.42139285

26.42139285 = c

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Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value u
Alenkasestr [34]

Answer:

The  value is  1.75 \  and  \   -1.75

Step-by-step explanation:

From the question we are told that

     The null hypothesis is  H_1 :  \mu \ne 3.24

     The level of significance is  \alpha = 0.08

From the z table  the critical value of  \alpha considering the two tails of the normal  curve( This is because this a two tailed test ) is

       z= \pm  1.75

Hence the critical value is  

       1.75 \  and  \   -1.75

         

5 0
3 years ago
Will give brainliest
Vlada [557]

Answer:

lenght = 2x + 3

breadth = x - 1

perimeter = 40

Now,

perimeter = 2(l+b)

40= 2( 2x + 3 + x - 1)

40= 2(3x - 2)

40 = 6x- 4

40+4 =6x

44/6 =x

x = 7.33

6 0
2 years ago
4d + 5 >= 13 or 7d - 2 <12
vivado [14]
I'm guessing that the >= is a greater than or equal to sign, so the answer should be d>=2 and d<2, please tell me if I am wrong and I will do my best to correct it!

6 0
3 years ago
63x^12-35x^6 help pls
zmey [24]

Answer:

7x^6×(9×^6-5)

Step-by-step explanation:

63x^12-35x^6

7x^6×(9×^6-5)

7 0
3 years ago
PLSSSSSSS HELP ASAP I IS DEAD
RideAnS [48]

Answer:

The answer is 24.

Step-by-step explanation:

If you multiply 3/4 by 8, you would get 6. Then, subtract 6 from 30, you would get 24. Larry's profit would be only $24.

8 0
3 years ago
Read 3 more answers
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