3 years ago

Which graph represents the solution for the equation 1/2 x - 1 = -x + 2?

Mathematics

1 answer:

Anna11 [10]3 years ago

3 0

Answer:

Step-by-step explanation:

x=2

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Dan and David win some money and share it in the ratio 2:1. Dan gets £42 more than David. How much did they get altogether?

nalin [4]

Answer:

£126

Step-by-step explanation:

Ratio is 2:1 so the difference between the amount of money will be "1". This is equal to £42 so 2 x 42 is 84 and 1 x 42 is 42, add them together and the answer is £126.

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4 years ago

A satellite television receiver is a parabolic dish with an equation of y=1/32 x^2

choli [55]

Step-by-step explanation:

The equation of a parabola that relates it focus is

${x}^{2} = 4py$

So here, we isolate x^2.

$y = \frac{1}{32} {x}^{2}$

$32y = {x}^{2}$

Next, we factor out 4.

${x}^{2} = 4(8)(y)$

Our p=8 so this tells us the distance of the vertex to the focus.

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2 years ago

Which number should each side of the equation 23x=10 be multiplied by to produce the equivalent equation of x = 15?

Neporo4naja [7]

Answer:

it is 3

Step-by-step explanation:

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3 years ago

X + 2y = 5<br> y = 6x + 3

ki77a [65]

Answer:

x = −1/13 and y = 33/13 or 2 7/13

Step-by-step explanation:

x+2y=5

x+2(6x+3)=5

x+12x+6=5

13x+6=5

-6 -6

13x= -1

/13 /13

y=6x+3

y=6(-1/13)+3

y= 33/13

y= 2 7/13

5 0

3 years ago

Which graph represents this equation y-4= -3(x+5)

Kipish [7]

Answer:

Graph B

Step-by-step explanation:

Simplify.

y - 4 = -3x - 15 Distribute

y = -3x - 11 Add 4 on both sides

The y-intercept should be negative, and option B has a negative y-intercept.

6 0

4 years ago