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Kisachek [45]
3 years ago
8

Solve Fast Please!!!!!!!!!!!!!! ok thanks, Bye (2x−5)^2−.5x<(2x−1)(2x+1)−15

Mathematics
1 answer:
Andrews [41]3 years ago
8 0

Keep these rules in mind:

  1. (a + b)² = a² + 2ab + b²
  2. (a - b)² = a² - 2ab + b²
  3. (a + b)(a - b) = a² - b²

Firstly, solve the exponent and multiplication:

4x^2-20x+25-0.5x

Next, combine like terms:

4x^2-20.5x+25

Next, subtract 4x² on both sides:

-20.5x+25

Next, subtract 25 on both sides:

-20.5x

Lastly, divide both sides by -20.5. And since you are dividing by a <u>negative</u>, flip the inequality sign:

x>2

<u>Your answer is x > 2.</u>

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Which ordered pair is a solution of the equation?<br> Y-4=7(x-6)
deff fn [24]

Answer:

(6,4)

Step-by-step explanation:

The equation is in 'point-slope' form.

y-y_1=m(x-x_1)\\\rule{150}{0.5}\\(x_1,y_1) \rightarrow \text{a point that's given}\\\\m \rightarrow \text{slope}

This means we can identify the point that was used in the equation.

y-\boxed{y_1} =m(x-\boxed{x_1}) | y-\boxed{4}=7(x-\boxed{6})\\\rule{210}{0.5}\\y_1 = 4\\\\x_1 =6\\\rule{210}{0.5}\\(x_1,y_1) \rightarrow \boxed{(6,4)}

(6,4) would be a solution to the equation given.

Hope this helps.

4 0
2 years ago
At a used book sale, all the books cost the same price. Henry buys 4 paperback books for $3.20. Laney buys 9 books. How much doe
Lemur [1.5K]

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Henry: 12.80

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Step-by-step explanation:

3 0
3 years ago
Syme SUV<br>Graph both lines on the same coordinate plane.<br>4y = x + 8<br>y+3 = 2 x​
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Answer:

i can show you how to do it...

Step-by-step explanation:

first put 4y=y+3

then put x+8=2x

all you have to do is subtract 4 on both sides and also 2 on both sides

3 0
3 years ago
What is the area of a semi circles with the diameter 20
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First we will find the radius.

20/2 = 10

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Hope this helps :)
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