[(-2)²×3]÷[(-9)-5+2]

Mathematics

2 answers:

Law Incorporation [45]2 years ago

8 0

-1 is the correct answer

Elodia [21]2 years ago

6 0

Answer:

-1

Step-by-step explanation:

1. To simplify this expression, let's go through the steps of BODMAS.

$\frac{(-2)^2(3)}{-9-5+2}$
$\frac{(4)(3)}{-9-5+2}$
$\frac{12}{-9-5+2}$
$\frac{12}{-14+2}$
$\frac{12}{-12}$
$-1$

Therefore, the answer is -1.

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A pentagon has angle measures of 12x°, 7x°, 16x°, 9xº, and 10x°. Find the value of x.

8_murik_8 [283]

Answer:

Step-by-step explanation:

The sum of all the interior angles of a pentagon is 540°

So...

540 = 12x + 7x + 16x+ 9x + 10x

Combine like terms:

540 = 12x + 7x + 16x+ 9x + 10x

540 = 54x

Divide by 54 on both sides:

540 = 54x

/54 /54

10 = x

Hope this helps :)

8 0

3 years ago

Anyone helppp meee please ....

borishaifa [10]

Yep, this one seems sneaky and confusing. But it's not so bad if you remember the things you learned about parallel lines. (It can't be too tough ... I learned them
in 1954 and I still know how to use them.)

Look at the picture. Line ' l ' is parallel to line ' m ', and the horizontal line on the bottom (which is not labeled) is a transversal that cuts the parallel lines.

Did you learn that interior angles on the same side of the transversal are equal ?
I'm sure you did, although it may have a new name nowadays.

Anyway, with the help of that 'tool', angle-'B' and angle-'D' are equal. So . . .

(angle-A + angle-B) = 120

angle-B = 65

angle-A = 120 - 65 = 55 degrees.

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3 years ago

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3 years ago

Cos15°°- Sin 15°= 1/√2

ololo11 [35]

<h2>Refer this attachment</h2>

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