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Jlenok [28]
3 years ago
5

Write the quadratic equation in standard form with the given roots. {1/2,-8}

Mathematics
1 answer:
frosja888 [35]3 years ago
3 0
The answer is y=x^2+15x/2-4. 
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Determine whether the statement is sometimes, always, or never true. If ax+b-4=b and doesn’t equal 0 then x=4/a?
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Start with expression ax+b-4=b.

1. Separate terms - with x leave in left side, without x write in right side:

ax=b-b+4,\\ \\ax=4.

2. Divide the last expression by a (a\neq 0):

x=\dfrac{4}{a}.

Answer: this statement is true when a\neq 0.

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Can anybody help me please
Mumz [18]

(_ , _) means (X , Y)

(25 , ) means

X = 25 then you need find the value of Y from the equation .

y =  \frac{1}{5} x - 8 \\ y =  (\frac{1}{5}  \times 25) - 8 \\ y = 5 - 8 =  - 3

so the first answer is (25,-3)

..............

( , -8) means

Y = -8 then you need to find the value of X from the equation .

y =  \frac{1}{5} x - 8 \\  - 8 =  \frac{1}{5} x - 8 \\ 0 =  \frac{1}{5} x \\ x = 0

so the second answer is ( 0 , -8 )

hope this would help you

3 0
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alexandr1967 [171]

Answer: -920

Step-by-step explanation:

-447 - 473 = -920

In this case, smaller means more negative

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3 years ago
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The quotient of a number and 14 is 8. Find the number.​
mafiozo [28]

Answer:

The number is 112

Step-by-step explanation:

Let the number be 'x'

\sf \dfrac{x}{14}=8\\\\\text{Multiply both sides by 14}\\\\ \dfrac{x}{14}*14=8*14\\\\

<h3>          x  = 112</h3>
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2 years ago
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