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3 years ago

I don't know why it is faced that way but help plz

Mathematics

2 answers:

Nady [450]3 years ago

7 0

Answer: x > 5

Step-by-step explanation: You need to isolate x. First, distribute the 1/2 into the parentheses. You will get:

4x + x + 2 > 12

Combine like terms.

5x + 2 > 12

Subtract 2 from each side.

5x > 10

Divide by 5 on each side.

X > 2

Since x is by itself, that is the answer.

mr_godi [17]3 years ago

7 0

Answer:

x > 2

Step-by-step explanation:

Distribute 1/2

Distribute 1/2 inside the parentheses

1/2 * 2x = x

1/2 * 4 = 2

Simplify

4x + x + 2 > 12

Combine like terms

5x + 2 > 12

Subtract 2 in both sides

2 - 2 = 0

12 - 2 = 10

5x > 10

Divide 5 in both sides

5x/5 = x

10/5 = 2

Simplify

x > 2

Answer

x > 2

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What is the image of point (4,3) if the rotation is -270

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3 years ago

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marta [7]

$0 = - 4.9t {}^{2} + 27t + 2.4$
Convert decimals to fractions

$0 = - \frac{49}{10} t {}^{2} + 27t + \frac{12}{5}$
Multiply both sides by 10

$0 = - 49t {}^{2} + 270t + 24$
Move expression to the left.

$0 + 49t {}^{2} - 270t - 24 = 0$
Remove zero.

$49t {}^{2} - 270t - 24 = 0$ Solve the quadratic equation.

$t = \frac{ - ( - 270) + - \sqrt{( - 270) {}^{2} - 4 \times 49 \times ( - 24) } }{2 \times 49}$
Remove parenthesis and calculate.

$t = \frac{270 + - \sqrt{72900 + 4704} }{98}$
Add the numbers

$t = \frac{270 + - 77604}{98}$
Separate the solutions

$t = \frac{270 + \sqrt{77604} }{98} \\ t = \frac{270 - \sqrt{77604} }{98}$
The final solution are
$t1 = \frac{270 - \sqrt{77604} }{98} , t2 = \frac{270 + \sqrt{77604} }{98}$

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