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GalinKa [24]
3 years ago
9

-2(1/2x-1)=4

Mathematics
1 answer:
Harman [31]3 years ago
6 0
-2(1/2x-1)=4 distribute the -2

-1x+2=4 subtract 2 from both sides

-1x=2 divide -1 on both sides

x=-2 answer
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The difference of the square of a number and 28 is equal to 3 times that number find the positive solution
lutik1710 [3]
<h2>The required positive number is 7.</h2>

Step-by-step explanation:

Let the number = x

To find, the positive number = ?

According to question,

x^{2}-28=3x

⇒ x^{2} - 3x - 28 = 0

By Factorisation method,

⇒ x^{2} - 7x + 4x - 28 = 0

⇒ x(x - 7) + 4(x - 7) = 0

⇒ (x - 7)(x + 4) = 0

⇒ x - 7 = 0 or, x + 4 = 0

⇒ x  = 7 or, x = - 4 [ - 4 is a negative number)

⇒ x  = 7

Thus, the required positive number is 7.

8 0
3 years ago
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Nataly_w [17]

Answer:

1/4

Step-by-step explanation:

we can take two points on the line: (0,2) and (4,3)

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6 0
2 years ago
The equation for f and the graph of g are given. How do the period and the amplitude of the functions
trapecia [35]

Answer:

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Step-by-step explanation:

6 0
3 years ago
Write (2x - 5)2 as a trinomial.
solniwko [45]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
fladli sells televisions. He earns a fixed amount for each television and an additional $ 20 if the buyer gets an extended warra
ivanzaharov [21]

Answer: $80


Step-by-step explanation:

Given: The amount earned by Fadil on selling 14 televisions= $1400

Therefore, the amount he earned on selling 1 television=\frac{1400}{14}=\$100

Since, he sold televisions with extended warranty and he earns $20 additional for it.

Then, the fixed amount Fadil earns for each​ television=\$100-\$20=\$80

Hence, Fadil earns $80 as the fixed amount for each televison.

4 0
3 years ago
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