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3 years ago

If y=1/2x-2 determine the value of y when x=-12

Mathematics

2 answers:

Amanda [17]3 years ago

7 0

Answer:

-8

Step-by-step explanation:

first you substitute x for -12:

y=1/2(-12)-2 which simplifies to

y=-6-2 so

y=-8

vfiekz [6]3 years ago

4 0

Answer:

y = -8

Step-by-step explanation:

y = 1/2x - 2

y = 1/2(-12) - 2

y = -6 - 2

y = -8

Answer: y = -8

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If x - 1 = 5, what is the value of 8x - 8

Serggg [28]

X=6 is the answer to this equation

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3 years ago

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Solve and check: 3 x2 + 5x + 6 + x − 1 x + 2 = 7 x + 3

vagabundo [1.1K]

Answer:

3 $x^{2}$ -2x +5=0

Step-by-step explanation:

Combine liked terms:

3 $x^{2}$ +5x+x-1x+6+2=7x+3

3 $x^{2}$ +6x-1x+8=7x+3

3 $x^{2}$ +5x+8=7x+3

Subtract 3: 3 $x^{2}$ +5x+8-3=7x+3-3

3 $x^{2}$ +5x+5=7x

Now subtract 7x:

3 $x^{2}$ +5x+5-7x=7x-7x

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3 $x^{2}$ -7x+5x+5=0

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Hope this helps!

5 0

3 years ago

The sum of number y and sixty-one

Igoryamba

The answer is y+61 or 61+y.

Hope it helps

6 0

3 years ago

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Find the point B on AC such that the ratio of AB to BC is 2:3

Virty [35]

Answer:

B(4, - 3 )

Step-by-step explanation:

We have A(2, - 7) and C(7, 3 )

Using the section formula to calculate the coordinates of B

$x_{B}$ = $\frac{3(2)+2(7)}{2+3}$ = $\frac{6+14}{5}$ = $\frac{20}{5}$ = 4

$y_{B}$ = $\frac{3(-7)+2(3)}{2+3}$ = $\frac{-21+6}{5}$ = $\frac{-15}{5}$ = - 3

Hence B(4, - 3 )

3 0

3 years ago

The weight of meteorite A is 5 times the weight of meteorite B. If the sum of their weights is 126 tons, find the weight of each

Sholpan [36]

Answer:

Step-by-step explanation:

if you divide 126 by 5, you get Meteorite B, 25.2, then minus that from 132, and you get Meteorite A, 106.8

To check, do 25.2 x 5 and you should get 132.

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2 years ago