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3 years ago

Find the value of y that makes the equation y= 1/2x- 2 true when x=4 A. -4

Mathematics

1 answer:

olchik [2.2K]3 years ago

6 0

Answer:

y = 0

Step-by-step explanation:

y =1/2(4)-2

y= 2-2

y=0

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I need help with the question !!

nikdorinn [45]

Answer:

Step-by-step explanation:

x = 136/2 = 68°

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2 years ago

1. Solve x squared + x - 6 by Factoring

Alex

Answer:

x= -3 and x= 2

E. none of the above

x²+x-6=0

x²+3x-2x-6=0

x(x+3)-2(x+3)= 0

(x-2)(x+3)=0

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3 years ago

Read 2 more answers

12^13–12^12+12^11 is divisible by 7 and 19.

fiasKO [112]

Answer:

The statement is true

Step-by-step explanation:

The question is as following :

$12^{13}-12^{12}+12^{11}$ is divisible by 7 and 19, true or false?

The given expression is $12^{13}-12^{12}+12^{11}$

Take $12^{11}$ as a common

$12^{13}-12^{12}+12^{11} = 12^{11}*(12^2-12^1+12^0)\\= 12^{11} *(144-12+1)\\=12^{11} * 133\\= 12^{11} * 7 * 19$

So, $12^{11} * 7 * 19$ divided 7 = $12^{11} * 19$

And $12^{11} * 7 * 19$ divided 19 = $12^{11} * 7$

$12^{13}-12^{12}+12^{11}$ is divisible by 7 and 19 (<u>True</u>)

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3 years ago

Substation method x-2y=5 ,<br> 3x-5y=8

valina [46]

$x-2y=5 \\
3x-5y=8 \\ \\
\hbox{solve the first equation for x:} \\
x-2y=5 \ \ \ |+2y \\
x=2y+5 \\ \\
\hbox{substitute 2y+5 for x in the second equation:} \\
3(2y+5)-5y=8 \\
6y+15-5y=8 \\
y+15=8 \ \ \ |-15 \\
y=-7 \\ \\
x=2y+5=2 \times (-7)+5=-14+5=-9 \\ \\
\boxed{(x,y)=(-9,-7)}$

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3 years ago

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adoni [48]

112? kxkdjejeiidisiskskdkks

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3 years ago