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borishaifa [10]
3 years ago
5

PLZ HELPPPPPP ASAPPP

Mathematics
1 answer:
lozanna [386]3 years ago
3 0

Answer: y = 3x - 2

the equation is y = ax + b  (a ≠ 0)

see in the picture, the line passes through  (0;-2) and (2;4)

because the line passes through  (0;-2) => b = -2

               the line passes through (2;4) => 2a + b = 4

have: b = -2

          2a + b = 4

⇔ a = 3

    b = -2

=> the equation is y = 3x - 2

Step-by-step explanation:

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X2+7x-8 please factor
vova2212 [387]
x^2+7x-8=x^2+8x-x-8=x(x+8)-1(x+8)=(x+8)(x-1)
8 0
4 years ago
the perimeter of a rectangle is 192 ft. the ratio of its length to its width is 7:5 what are dimensions of the rectangle?
Jobisdone [24]

Answer:  Hence the dimensions are 56 ft and 40 ft.

Step-by-step explanation:

Alright, lets get started.

The ratio of sides of rectangle is given as 7:5.

It means, the length of rectangle is : 7x

It means, the width of rectangle is : 5x

So the perimeter of rectangle will be : 2(length + width)

Plugging the value of sides length and width,

the perimeter of rectangle will be : 2\times(7x+5x)

the perimeter of rectangle will be : 2\times 12x

the perimeter of rectangle will be : 24x

As per question, the given perimeter is 192, so

24x=192

Dividing 24 in both sides,

x=\frac{192}{24}

x=8

Hence the length of rectangle will be : 7\times 8 =56

Hence the width of rectangle will be : 5\times 8 =40

Hence the dimensions are 56 ft and 40 ft.  :   Answer

Hope it will help :)

6 0
3 years ago
1. A caterer charges a flat fee plus $8.50 per
Korolek [52]

Answer:

$1,324

Step-by-step explanation:

$8.50 * 65 = $552.50. $601.50 - $552.50 = $49. So the flat fee would be $49.

$8.50* 150 = $1,275. With the flat fee it would be $1,275+$49 = $1,324.

8 0
3 years ago
What over 126 will equal 1/21 simplified?
FinnZ [79.3K]

Answer:

6

Step-by-step explanation:

Let x over 126 will equal 1/21.

Therefore,

\frac{x}{126}  =  \frac{1}{21}  \\  \\ x =  \frac{126}{21}  \\  \\ x = 6

5 0
3 years ago
I think number 9 is b or c, i don't know what 10 is. please help me!!!
scoray [572]
10 is letter b. I hope this helps!!!
7 0
4 years ago
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