3 years ago

Evaluate 3|−5| − 2|−2|

Mathematics

1 answer:

lilavasa [31]3 years ago

5 0

Answer:118

Step-by-step explanation:

3!-5!-2!-2! =? IF ! MEANS FACTORIAL, 3! MEANS 3X2X1=6,

-5! MEANS -5X4X3X2X1=-120

-2!= -2X1=-2

-2!=-2X1=-2

PROBLEM BECOMES 6--120-2-2=118

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Really need help, I’m trying to catch up in my math and get my marks back up before mid term..

Luba_88 [7]

Answer:

a) 12x + 22 b) 17 $x^{2}$ - x

Step-by-step explanation:

Perimeter is the sum of the each side length.

The first example is a rectangle so the (4x+8) and the (2x+3) are doubled.

(4x+8) x 2 = 8x+16

(2x+3) x 2 = 4x + 6

12x+22

(6 $x^{2}$ - 12x) + (2 $x^{2}$ + x) + (9 $x^{2}$ + 10x)

combine like-terms.

17 $x^{2}$ - x

6 0

2 years ago

Read 2 more answers

What are the coordinates of the center of the circle whose equation is (x – 9)2 + (y + 4)2 = 1?

fiasKO [112]

$\bf \textit{equation of a circle}\\\\ 
(x- h)^2+(y- k)^2= r^2
\qquad 
center~~(\stackrel{}{ h},\stackrel{}{ k})\qquad \qquad 
radius=\stackrel{}{ r}\\\\
-------------------------------\\\\
(x-9)^2+(y+4)^2=1
\\\\\\\
[x-\stackrel{h}{9}]^2+[y-(\stackrel{k}{-4})]^2=1\qquad \qquad \qquad center~(9,-4)$