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Mathematics

1 answer:

rodikova [14]3 years ago

7 0

Question 3) Bank Branch
question 4) The distance between the bank and your home

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3.) rewrite r(x) in expanded form

Andrew [12]

Answer:

Step-by-step explanation:

r(x)= (x-3)(x+5)

= x²+5x-3x-15

=x²+2x-15

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4 years ago

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Round each decimal to the nearest whole number 2.7 0.7 18.2 6.34 9.8 9.4

never [62]

1. 3.0
2. 1.0
3. 18.0
5. 6.0
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3 years ago

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If 2 1/4 pounds of bananas cost $1.89, what is the cost per pound?

Svetach [21]

Answer:

The cost per pound of bananas is $0.84.

Step-by-step explanation:

The question asks to use the given information to set up a proportion and solve for the missing variable. In this case, we know that the cost of 2 1/4 (or 2.25) bananas is $1.89. Since they are asking for cost per pound, we can set up a ratio (fraction):

$\frac{1.89}{2.25}=\frac{cost}{pounds}$

Since the cost of bananas is the same regardless of the number of pounds, we can set up a proportion to find the cost for just one (1) pound:

$\frac{1.89}{2.25}=\frac{x}{1}$ Where 'x' is the cost.

Using cross-multiplication and division we get: 2.25x = 1.89. Next, we use inverse operations to divide both sides by 2.25: 2.25x/2.25 = 1.89/2.25. Solve: x = 0.84 or $0.84 per pound.

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4 years ago

I don't know how to find the answer for (3 + 6b + 3b^2). I'm still confused even after my teacher explained it. Could someone br

yarga [219]

Answer:

steps below

Step-by-step explanation:

3 + 6b + 3b² = 3 (b² + 2b + 1) = 3 (b + 1)²

root: -1 if 3 + 6b + 3b² = 0 b = -1

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3 years ago

Express your answer in scientific notation. 4.1 x 10^-2 - 2.6 x 10^-3