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ollegr [7]
3 years ago
13

Nancy has 62 more erasers than Barbara. Barbara has ferasers. Write the expression that

Mathematics
1 answer:
Anna11 [10]3 years ago
4 0

Answer:

F+63= The amount of erasers Nancy has

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Simplify 3 – b(7b + 2) + 3b – (11 – b).
bixtya [17]
<span>Simplifying 7b + -4 + 3b + 11 + -1b = 0
 
Reorder the terms: -4 + 11 + 7b + 3b + -1b = 0
 
Combine like terms: -4 + 11 = 7 7 + 7b + 3b + -1b = 0
 
Combine like terms: 7b + 3b = 10b 7 + 10b + -1b = 0
 
Combine like terms: 10b + -1b = 9b 7 + 9b = 0
 
Solving 7 + 9b = 0
 
Solving for variable 'b'.
 
Move all terms containing b to the left, all other terms to the right.
 
Add '-7' to each side of the equation.
7 + -7 + 9b = 0 + -7
 
Combine like terms: 7 + -7 = 0 0 + 9b = 0 + -7 9b = 0 + -7
 
Combine like terms: 0 + -7 = -7 9b = -7
 
Divide each side by '9'. b = -0.7777777778 Simplifying b = -0.7777777778</span>
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3 years ago
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Choose the correct conic section to match the equation. y 2 = 36x<br> I need help
GREYUIT [131]
Remark
I take it that you mean y^2 = 36x. The first thing you should try and do is get a graph of the given equation. I've done that for you. Notice a few characteristics.

1. The graph opens left. Usually most graphs like this one open up or down.
2. The graph is open ended on the right. 
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4. The graph is continuous, but it is not a function. (that's a fact -- but not needed in this question).

When you get a graph looking like this, you have either a graph called a quadratic or a parabola. Either (but not both) could be your answer. If you have choices list them in a comment.
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Use the expression below to answer the following question:
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Coefficients: 2 and 12
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Need help worth 34 points!
exis [7]
  x + y = 3
- x        - x
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  y - y₁ = m(x - x₁)
y - (-1) = -1[x - (-1)]
  y + 1 = -1(x + 1)
  y + 1 = -1(x) - 1(1)
  y + 1 = -x - 1
     - 1         - 1
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The answer is B.
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3 years ago
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At holiday camp the ration of boys to girls
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Answer:

Boys :girls!

Step-by-step explanation:

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