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elixir [45]
3 years ago
14

What is the solution to the following equation? 5(2x − 14) + 23 = 7x − 14

Mathematics
2 answers:
g100num [7]3 years ago
7 0
X=11

 Hope this helps your welcome
nexus9112 [7]3 years ago
3 0
5(2x - 14) + 23 = 7x - 14
10x - 70 + 23 = 7x - 14
Combine like terms
10x - 47 = 7x - 14
subtract 7x from both sides
3x - 47 = -14
add 47 to both sides
3x = 33
divide both sides by 3
x = 11

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An electrical rm manufactures light bulbs that have a life span that is approximately normally distributed. The population stand
stira [4]

Answer:

The 't' test statistic = 1.46 < 1.69

The test of hypothesis is H 0 :μ = 800 is accepted

A sample of 30 bulbs are found came from average µ= 800

Step-by-step explanation:

Step 1:-

Given population of mean μ = 800

given size of small sample n =30

sample standard deviation 'S' = 45

Mean value of the sample χ = 788

Null hypothesis H_{0} =µ  =800

alternative hypothesis  H_{1} = µ ≠ 800

<u>Step 2</u>:-

The 't' test statistic t =  \frac{x-μ}{\frac{sig}{\sqrt{n} } }

                             t = \frac{788-800}{\frac{45}{\sqrt{30} } }

                       t = \frac{12}{8.215} = 1.4607

<u>Step 3</u>:-

The degrees of freedom γ = n-1 = 30-1 =29

From "t" value from table at 0.05 level of significance ( t = 1.69)

The calculated value t = 1.4607 < 1.69

Therefore The null hypothesis H_{0} ' is accepted.

<u>conclusion</u>:-

A sample of 30 bulbs are came found from average µ= 800

7 0
3 years ago
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Anna71 [15]

Answer:

Area 60 po is 32

Step-by-step explanation:

First u do 6x10 which equal 60area is a he whole and perimeter is what each side and add all sidesis and the perime Is 32So the po is 32 and the . Is 60 hope it. Helps

7 0
2 years ago
Read 2 more answers
ANSWER NOW FOR A LOT OF POINTS!
sleet_krkn [62]
Answer: x>2
Explanation:
4x- 2>6
4x>8
x> 2
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2 years ago
Divide 8 by the quotient of 5 divivided by 2
ehidna [41]
This question is worded weirdly, but it means:

8 / (5/2)

= 8 * (2/5)

= 16/5
4 0
3 years ago
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Geometric mean of 5 and 8 in simplest radical form
Montano1993 [528]
First, multiply 5 and 8. That equals 40. Then you take the square root of 40, which doesn't result in a whole number, so you factor 40 and removing perfect squares. In which case the answer would be 2√10
6 0
3 years ago
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