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3 years ago

Simplify −6+{14+2[60−9(1+3)]}

2 answers:

6 0

The answer is 56.

I know this because...
<span>-6 + {14 + 2 [60 − 9(1 + 3)]}
-6 + </span>{14 + 2[60 − 9(4)]}
-6 + {14 + 2[60 − 36]}
-6 + {14 + 2[24]}
-6 + {14 + 48}
-6 + {62}
-6 + 62 = 56

Maslowich3 years ago

3 0

Answer:

Step-by-step explanation:

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WORTH 20 POINTS HELP

vfiekz [6]

Below represents the proof that the quadrilateral QRST is a parallelogram

<h3>How to prove that QRST is a parallelogram?</h3>

The coordinates are given as:

Q = (-1,-1)

R = (2,9)

S = (-4,5)

T = (-7,-5)

Calculate the length of each side using:

$d = \sqrt{(x_2 -x_1)^2 + (y_2 -y_1)^2}$

So, we have:

$QR = \sqrt{(-1 - 2)^2 + (-1 -9)^2} = \sqrt{109}$

$RS = \sqrt{(-4 - 2)^2 + (5 - 9)^2} = \sqrt{52}$

$ST = \sqrt{(-7 + 4)^2 + (-5 - 5)^2} = \sqrt{109}$

$TQ = \sqrt{(-7 + 1)^2 + (-5 + 1)^2} = \sqrt{52}$

The above computations show that opposite sides are equal.

Next, we determine the slope of each side using:

$m = \frac{y_2 -y_1}{x_2 -x_1}$

So, we have:

$QR = \frac{9 + 1}{2 + 3} = \frac{10}3$

$RS = \frac{5-9}{-4 - 2} = \frac{2}3$

$ST = \frac{5+5}{-4 + 7} = \frac{10}3$

$TQ = \frac{-5+1}{-7 + 1} = \frac{2}3$

The above computations show that opposite sides are parallel, because they have equal slope

Hence, the quadrilateral QRST is a parallelogram

Read more about parallelograms at:

brainly.com/question/3050890

#SPJ1

6 0

2 years ago

Terms written in the form a/b are fractions. For example 2/3. If you see 3 1/2 it should be 3 and 1/2

aliina [53]

Answer:

7/2??

Step-by-step explanation:

Im not sure what you mean but 3 1/2 is the same thing as 7/2

5 0

2 years ago

Solve for x. x−53 = 4

natima [27]

Answer:

x = 57

Step-by-step explanation:

x−53 = 4

Add 53 to each side

x-53+53 = 4+53

x = 57

5 0

3 years ago

Read 2 more answers

Original amount = 80 dollars. 20 percent off is 64 dollars. 20 percent off is question mark.

lord [1]

Answer:

Step-by-step explanation:

80/100=0.8

0.8x60=48

7 0

2 years ago

6c+3d use c=8 and d= -8

lisov135 [29]

Answer:

brain

Step-by-step explanation:

brain to the fullest

8 0

2 years ago