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Molodets [167]
3 years ago
9

The bar graph shows the z-score results of four students on two different mathematics tests. The students took Test 1 and then,

a month later, took Test 2. Which student had the lowest score on Test 2? Euan Felicia Dave Carla

Mathematics
1 answer:
bezimeni [28]3 years ago
5 0

Answer:

euan had lowest score on test 2

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X^2+10x+19=0 complete the square PLEASE EXPLAIN
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Answer:

Step-by-step explanation

In the form ax^2+bx+c

a x c should equal two factors of b

However, in this equation

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so you must use the Quadratic Formula which is,

x = \frac{-b+-\sqrt{b^2-4ac} }{2a}

so the answer should be

x = \frac{-10+-\sqrt{10^2-4(1)(19)} }{2(1)}

x = \frac{-10+-\sqrt{24} }{2}

x = \frac{-10+2\sqrt{6} }{2}      and    x = \frac{-10-2\sqrt{6} }{2}

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3 years ago
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Answer:

23 %

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2 years ago
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salantis [7]

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3 years ago
In 2010, there were 311 middle schools in Virginia. In 2016, there were 306. By what percent did the number of middle schools in
Nataly_w [17]

Answer:1.6%

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