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Sergeu [11.5K]
2 years ago
12

Find the value of the expression when x = 2, y = - 4 and z = ½.

Mathematics
1 answer:
Alla [95]2 years ago
4 0

what is the expression

I guess the question is incomplete

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Kiara spent $36 and had $12 left.<br><br> what percent money did she spend
Illusion [34]

Answer:

she spent 75%

Step-by-step explanation:

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3 years ago
Read 2 more answers
If you need to know the other options I'll tell you just ask :)​
vazorg [7]

Answer:

The slope is -50. The slope means that the amount of money in the account is decreasing at a rate of  $50 every week.

Step-by-step explanation:

Given coordinates are (4,2400)\ and\ (12,2000)

We need to find the slope of the graph, and explain what does slope means for this graph.

The formula for computing slope (m) is  

m=\frac{y_2-y_1}{x_2-x_1}

Where (x_1.y_1) and (x_2,y_2) are the point on the line.

Let us plug points (4,2400)\ and\ (12,2000) in the equation

m=\frac{2000-2400}{12-4}\\ \\m=\frac{-400}{8}\\\\m=-50

Here, the negative sign of slope (m) represents that the value of the function (budget) is decreasing, with an increase in time (week).

The slope is -50. The slope means that the amount of money in the account is decreasing at a rate of  $50 every week.

6 0
3 years ago
10. Rotate the figure shown 180° clockwise. Record the coordinates of the 3 points<br> image.
inna [77]

Answer:

J' = (6,7)

K' = (6,2)

L'=(3,7)

Step-by-step explanation:

From the attachment, we have:

J = (-6,-7)

K = (-6,-2)

L = (-3,-7)

Rotation: 180 degrees clockwise

Required

Find J', K' and L'

When a point (x, y)is rotated 180 degree clockwise, the resulting point is: (-x, -y)

So, we have:

J' = (6,7)

K' = (6,2)

L'=(3,7)

3 0
3 years ago
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Hi there!

12 - 5x - 4kx = y&#10;&#10;-4kx - 5x = y - 12 &#10;&#10;Factor out variable x &#10;&#10;x(-4k-5)=y-12&#10;&#10;x = (y+12)/(4k+5)
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3 years ago
The sum of 5 and the twice a number is at most 27
LiRa [457]

If you are looking to write an inequality equation that models this situation, then the answer would be: 5+2x\leq 27.  The "at most" signals to use the less than or equal to sign.

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3 years ago
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