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Vlad [161]
3 years ago
8

Evaluate the expression when b=5. b² +9b-8

Mathematics
2 answers:
ziro4ka [17]3 years ago
8 0

Answer:

{b}^{2} + 9 b - 8 \\  {5}^{2}  + (9 \times 5) - 8 \\ 25 + 45 - 8 \\ 62

valkas [14]3 years ago
7 0
5^2 + 45b - 8 i think
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jackson had 1 and 1/3 gallons of juice he poured 5/6 gallon to share with his friends how much of the juice is left
FromTheMoon [43]
1 1/3 - 5/6

Find common demoninator which is 6.

Then do 2*1=2.

Now you got 2/6 - 5/6 = -3/6

Simplify:

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Then combined answers.

1 - 1/2 = 1/2

Final answer is 1/2


6 0
3 years ago
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As part of a drug trial, a survey was done to gather information about the participants' experiences with side effects. Here are
Paraphin [41]

The Venn diagram which represents the distribution of the participant in the drug trial is attached below. The Number of participants in the drug trial that has anxiety is 370

We can find the number of participants who has dizziness(D). Fatigue(F) and anxiety(A) can be calculated thus :

n(D) = n(D only) + (DnF only) + (DnA only) + (DnAnF)

271 = 36 + 86 + 23 + x

271 = 145 + x

x = 271 - 145

x = 126

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<u>Number who has </u><u>atleast one of the three</u><u> side effects can be expressed thus</u> :

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<u>Number of participants</u><u> who has </u><u>anxiety</u><u> can be calculated thus</u> :

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126 + 23 + 159 + 62 = 370 participants

Therefore, 370 of the total participants has Anxiety.

Learn more : brainly.com/question/12570490

8 0
2 years ago
What the vertex of the graph of y=-x^2
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3 years ago
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The second one is the correct answer. Plug in -3 into the equation.
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