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3 years ago

Solve the inequality, x + 6.56 > 25.2

Mathematics

1 answer:

pogonyaev3 years ago

7 0

Answer: x>18.64

Step-by-step explanation:

x+6.56-6.56>25.2-6.56

x>18.64

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Which of the following is the correct factored form of the given equation?

katrin [286]

Hint: "4x 2 - 25 = 0" is nearly meaningless. You want 4x^2 - 25 = 0.

Note that both 4x^2 and 25 are perfect squares, so this is the difference of two squares, and is equal to (2x-5)(2x+5)= 0.

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2 years ago

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URGENT pleaseee help 10 points and brainlist if right!!!! Use the Sohcahtoa method!!

Vsevolod [243]

Answer: x is 36 degrees

Step-by-step explanation:

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I need help with this problem

Amanda [17]

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2 years ago

By decreasing each dimension by 1 unit, the area of a rectangle deceased from 40 square feet to 28 square feet. Find the percent

arsen [322]

Answer:

30%

Step-by-step explanation:

Initial area is 40 square feet

Final area is 28 square feet

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Taking the initial area as the base area and expressing the area change in percentage then the percentage decrease will be equivalent to

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2 years ago

The area of a rectangle is 72 cm square. The length of the rectangle is 6 cm longer than the width. What is the width of the rec

miskamm [114]

The correct option will be : B) 6 cm.

Explanation

Suppose, the width of the rectangle is $x$ cm.

As, the length is 6 cm longer than the width, so the length will be: $(x+6) cm.$

Formula for the Area of rectangle is: $(Length)*(Width)$

Given that, the area of a rectangle is 72 cm²

So....

$x(x+6)=72\\ \\ x^2+6x-72=0\\ \\ (x+12)(x-6)=0$

Using zero-product property, we will get...

$x+12=0\\ x= -12$ (Negative value is ignored as width can't be negative)

and

$x-6=0\\ x=6$

So, the width of the rectangle is 6 cm.

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3 years ago