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Sonbull [250]
3 years ago
5

Keisha spent 45 minutes at soccer practice on Monday, and n minutes on Tuesday. Write an expression that represents the number o

f minutes she practiced soccer.
Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
7 0
Time spent practising soccer = 45 + N<span />
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10x +9 − x=12<br><br> Solve for X, What does X=?
marishachu [46]

Answer:

10*0.3+9-0.3=12

Exact form

1/3

Decimal form

0.3

Hope this helps! :)

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Use the discriminant to describe the roots of each equation. Then select the best description.
wariber [46]
The Discriminant of a quadratic is defined by ⇒     b² - 4ac

In our case:  
a = 1   b = -4  and c = 4

Evaluate the Discriminant:  (-4)² - 4(1)(4) = 16 -16 = 0
Summary of the what the Discriminant tells us:  
If:  
D = a positive value, then we would have two real roots
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You could also verify this by factoring the quadratic into (x - 2)(x -2) implying the double root of '2'

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andrey2020 [161]

the first one is the correct answer

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3 years ago
A chef combines 5 quarts of pineapple​ juice, 6 pints of​ milk, and 7 cups of apple juice to make smoothies. How many cups can b
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Multiply first equation with 2. Then add first and second, we get -x=6. X=-6 and y=-29
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