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Svetllana [295]
3 years ago
12

Belts at a department store cost &12 each. Use items from the tiles to complete the proportional relationship of total cost(

$),c, for a number of belts,b
Mathematics
1 answer:
Gnesinka [82]3 years ago
3 0

Answer:

C=12b

..........

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3 ^x = -3

then, x would be -1

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Dilation: expansion or contraction of an image by a scale factor Translation: sliding of a rigid object from one location on a p
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ab=ab=ab 3679y

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3 0
2 years ago
Which two numbers add up to 5 and multiply to -84
11111nata11111 [884]
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5 0
3 years ago
The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a me
zimovet [89]

Answer:

Option D) $275

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = $235

Standard Deviation, σ = $20

We are given that the distribution of amount of money spent by students is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find the value of x such that the probability is 0.975

P( X < x) = P( z < \displaystyle\frac{x - 235}{20})=0.975  

Calculation the value from standard normal z table, we have,  

P( z < 1.960) = 0.975

\displaystyle\frac{x - 235}{20} = 1.960\\x =274.2 \approx 275

Approximately 97.5% of the students spent below $275 on textbook.

7 0
3 years ago
How do I solve an equation like this, one with a negative in front of parentheses?
azamat

The factor outside the parentheses is -1. Distribute using that factor.

2 - (4 - <em>x</em>) = 7<em>x</em> - 5<em>x</em>

<em />

-1 * 4 = -4 and -1 * -<em>x</em> = <em>x</em>

<em />

2 - 4 + <em>x</em> = 7<em>x</em> - 5<em>x</em>

Simplify.

-2 + <em>x</em> = 2<em>x</em>

<em>x</em> = 2<em>x</em> + 2

-<em>x</em> = 2

<em>x</em> = -2

<h3>Answer:</h3>

<em>x</em> = -2

3 0
3 years ago
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