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elena-s [515]
3 years ago
8

Which expression is equivalent to −34÷(−812)?

Mathematics
1 answer:
tatyana61 [14]3 years ago
8 0

Answer:

Step-by-step explanation:

hello :

−34÷(−812)  means : -34/-812 = 17/406

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Help me please I done understand
KonstantinChe [14]
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6 0
3 years ago
Problem 1.(32 points) A random sample of 100 Uber rides in Chicago has on average 5.4miles per ride. Assume the distribution of
marshall27 [118]

Answer:

a) CI = ( 5,1 ; 5,7 )

b) SE =  0,1  

Step-by-step explanation:

a) Sample random     n  = 100

Mean  =  μ = 5,4

Standard deviation   s = 1,3

CI = 99 %    α = 1 %   α = 0,01     α/2 =  0,005

z(c) for  0,005 is from z-table    z(c)  = 2,575

z(c)  =  ( X - μ ) /s/√n          CI  =  μ ± z(c) * s/√n

CI =  5,4 ± 2,575* 1,3/10

CI = 5,4 ± 0,334

CI = ( 5,1 ; 5,7 )

b) SE = Standard deviation / √n

SE = 1,3 /10       SE =  0,1  

We can support that with 99 % of probability our random variable will be in the CI.

6 0
2 years ago
I need help I’ve tried all day
dmitriy555 [2]

Answer:

184

Step-by-step explanation:

bottom rectangle area = 16 x 10 = 160

middle rectangle area= 3 x 4 = 12

Top triangle= 1/2(bh) = 8 x 3 = 24 (1/2) = 12

160+ 12 +12= 184

8 0
3 years ago
Rylee is learning about prime numbers in math class. Her friend ask her to name all prime number between 10 and 20. What numbers
Juli2301 [7.4K]

Answer:

11, 13, 17, 19

Step-by-step explanation:

If you look at the prime numbers chart between 10 and 20, there are:

11, 13, 17, 19

Those are all of the prime numbers that are between 10 and 20.

4 0
3 years ago
Find the quotient of the quantity negative 6 times x to the 2nd power times y to the 8th power plus 12 times x times y to the 3r
olga nikolaevna [1]
[ - 6 * x^2 * y^8 + 12*  x * y^3 - 36 * x * y^2 ] / [6*x*y^2] =

[-6x^2 y^8 ] / [6xy^2] + [12x y^3] / [6xy^2] - [36xy^2] / [6xy^2] =

- xy^6 + 2y - 6

Answer: - xy^6 + 2y - 6

6 0
3 years ago
Read 2 more answers
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