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3 years ago

Which value is a solution of the equation 2-8x=-6 ? ( 1point )

1 answer:

5 0

Here the given equation is : 2-8x= -6 By bring -6 on the Left Hand size and taking 8x on the Right Hand side, the equation become. 2+6= 8X 8= 8X X=8/8 X=1 Hence value of X is 1. Hence correct option is A.

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The contents of seven similar containers of sulfuric acid are 9.8, 10.2, 10.4, 9.8, 10.0, 10.2, and 9.6 liters. find a 95% confi

Kamila [148]

The confidence interval is from 9.81 to 10.19.

We first find the mean of the data:

(9.8+10.2+10.4+9.8+10.0+10.2+9.6)/7 = 10

Next we find the standard deviation:
σ=√([(9.8-10)^2+(10.2-10)^2+(10.4-10)^2+(9.8-10)^2+(10-10)^2+(10.2-10)^2+(9.6-10)^2]/7) = 0.262

The z-score for 95% confidence is found by
1-0.95 = 0.05; 0.05/2 = 0.025; from the z-table, it is 1.96.

The confidence interval is calculated using
 $x\pm z\times (\frac{s}{\sqrt{n}})
\\
\\10 \pm 1.96(\frac{0.262}{\sqrt{7}})=10\pm 0.1941$

7 0

3 years ago

The graph of f(x) = StartRoot x EndRoot is reflected across the x-axis and then across the y-axis to create the graph of functio

allsm [11]

Answer:

The true statements:

The only value that is in the domains of both functions is 0.

The range of g(x) is all values less than or equal to 0.

==================================

Step-by-step explanation:

See the attached figure:

As shown: f(x) = √x with blue color

When f(x) is reflected across the x-axis the result will be (-√x) with red color.

Then the is reflected result across the y-axis to create the graph of function g(x) = -√(-x) with green color.

Domain of f(x) = [0,∞) & Range of f(x) = [0,∞)

Domain of g(x) = (-∞,0] & Range of g(x) = (-∞,0]

So, according to previous, we will check the statements:

1) The functions have the same range. (Wrong)

2) The functions have the same domains. (Wrong)

3) The only value that is in the domains of both functions is 0. (True)

4) There are no values that are in the ranges of both functions. (Wrong)

5) The domain of g(x) is all values greater than or equal to 0. (Wrong)

6) The range of g(x) is all values less than or equal to 0. (True)

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4 years ago

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Find the sales tax for three CDs, if each CD is $14.29 and the sales tax is 7.25%. What is the answer?

Komok [63]

Answer:

Step-by-step explanation:

6 0

3 years ago

A number t is less than or equal to 5

Pavel [41]

It would be written as
T < 5, but there would be a line underneath the less then sign

4 0

3 years ago

- 3c ( 4x - 2y ) PLESE HELP ASAP I WILL GIVE 5 STARS AND BRAINLIEST

Orlov [11]

12cx+6yc pls mark as brainliest

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