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Katarina [22]
3 years ago
15

B+8b -5 -2b = 16 what does b equal

Mathematics
2 answers:
notka56 [123]3 years ago
5 0
B + 8b - 5 - 2b = 16, b = 3
11111nata11111 [884]3 years ago
5 0

Answer:

b = 2.28571428571 or 2.29 or 2 2/7 or 16/7

Step-by-step explanation:

b + 8b - 5 - 2b = 16

b + 8b - 5 - 2b + 5 = b + 8b - 2b

b + 8b = 9b - 2b = 7b

7b = 16

7b / 7 = b

16 / 7 = 2.28571428571 or 2.29 or 2 2/7 or 16/7

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Determine whether the three points are the vertices of a right triangle.
Jobisdone [24]
Yes I have graphed them and they form a 90 degree angle
5 0
3 years ago
By law, an industrial plant can discharge no more than 500 gallons of waste water per hour, on the average, into a neighboring l
lisabon 2012 [21]

Answer:

P = 0.0438 ; We reject the Null and conclude that there is significant evidence that the discharge limit per gallon of waste has been exceeded.

Due to the small sample size.

Step-by-step explanation:

H0: μ = 500

H1 : μ > 500

Test statistic :

(xbar - μ) / S.E

Tstatistic = (1000 - 500) / 200

= 500 / 200

= 2.5

Pvalue from Test score ; df = 4 - 1 = 3 ; using calculator :

Pvalue = 0.0438

At α = 0.05

Pvalue < α ; We reject the Null and conclude that there is significant evidence that the discharge limit per gallon of waste has been exceeded.

The test above has a very small sample size, and for a distribution to be approximately Normal, the sample size must be sufficiently large enough according to the Central limit theorem.

For a two sided analysis ; the Pvalue is twice that for the one sided, hence, Pvalue = (0.0438 * 2) = 0.0876 yielding a less strong evidence against the Null.

3 0
3 years ago
12=24-y find yhelp me pleaseee
Reptile [31]

y = 12

Explanation:12\text{ = 24 - y}

We would collect like terms by subtracting 24 from both sides:

12\text{ - 24= 24 - 24 - y}\begin{gathered} -12\text{ = 0 - y} \\ -12=\text{ -y} \end{gathered}\begin{gathered} \text{divide both sides by -1:} \\ \frac{-12}{-1}=\frac{-y}{-1} \\ y\text{ = 12} \end{gathered}

8 0
11 months ago
I will literally give you brianlist
Rainbow [258]
11
a is the correct answer
8 0
3 years ago
Read 2 more answers
What is BC? Enter your answer in the box. BC=​
Molodets [167]

Answer:

25

Step-by-step explanation:

4x+4=6x-14

2x=18

x=9

2×9+7=25

6 0
3 years ago
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