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anzhelika [568]

3 years ago

9

Mrs. o'Brien bought 50 new books for the school library if mrs. o'Brien puts 9 books on each shelf, how many shelves will she ne

ed?

2 answers:

nikitadnepr [17]3 years ago

8 0

Answer:

she needs 6 shelves

Step-by-step explanation:

Vedmedyk [2.9K]3 years ago

7 0

Answer:

6 shelves

Step-by-step explanation:

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In a survey examining eating habit 34 women over 40 years old and a 54 women 40 and under responded to the survey. What’s the ra

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Step-by-step explanation:

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If 192 students are in 4 buses how many students are in each bus?

horrorfan [7]

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Step-by-step explanation:

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How do you solve 4x squared - 12x = 7 (ALGEBRAICALLY)

amm1812

$4x^2-12x=7 \\
4x^2-12x-7=0 \\ \\
a=4 \\ b=-12 \\ c=-7 \\ b^2-4ac=(-12)^2-4 \times 4 \times (-7)=144+112=256 \\ \\
x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}=\frac{-(-12) \pm \sqrt{256}}{2 \times 4}=\frac{12 \pm 16}{2 \times 4}=\frac{4(3 \pm 4)}{2 \times 4}=\frac{3 \pm 4}{2} \\
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x=-\frac{1}{2} \ \lor \ x=\frac{7}{2} \\ \\
\boxed{x=-\frac{1}{2} \hbox{ or } x=\frac{7}{2}}$

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3 years ago

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a bag contains 5 red cards numbered 1-5 and 5 white cards numbered 1-5. You choose a card at random. Find the possible outcomes

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7 0

3 years ago

nydimaria [60]

<span>Tan(x)=2
Or for x=45 tan(x)=1
then for tan(x)=2 ; x must be superior to 45
Then the answer is </span><span>d. 63.4 degrees</span>

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3 years ago