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levacccp [35]
3 years ago
5

Five times the sum of one-half and a number.

Mathematics
1 answer:
zhenek [66]3 years ago
7 0

Answer:

X+2.5

or X+7.5

or 5x+ 2.5

or 5x+7.5

Step-by-step explanation:

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Please help Need help
Anettt [7]
This problem can be readily solved if we are familiar with the point-slope form of straight lines:
y-y0=m(x-x0) ...................................(1)
where 
m=slope of line
(x0,y0) is a point through which the line passes.

We know that the line passes through A(3,-6), B(1,2)

All options have a slope of -4, so that should not be a problem.  In fact, if we check the slope=(yb-ya)/(xb-xa), we do find that the slope m=-4.

So we can check which line passes through which point:

a. y+6=-4(x-3)
Rearrange to the form of equation (1) above,
y-(-6)=-4(x-3)  means that line passes through A(3,-6) => ok

b. y-1=-4(x-2) means line passes through (2,1), which is neither A nor B
   ****** this equation is not the line passing through A & B *****

c. y=-4x+6  subtract 2 from both sides (to make the y-coordinate 2)
   y-2 = -4x+4, rearrange
   y-2 = -4(x-1)  
   which means that it passes through B(1,2), so ok

d. y-2=-4(x-1)
   this is the same as the previous equation, so it passes through B(1,2), 
   this equation is ok.

Answer: the equation y-1=-4(x-2) does NOT pass through both A and B.
   
8 0
3 years ago
Find the area <br><br> 54 cm<br> 85 cm<br> 170 cm (My answer)<br> 27 cm
Sergeu [11.5K]
If you add 17+17+10+10=54. Hope that helps.
8 0
3 years ago
Suppose the population of a certain city is 5416 thousand it is expected to decrease to 4787 thousand in 5 years find the percen
Marta_Voda [28]

Answer:

11.6% decrease (rounded off to the nearest tenth)

Step-by-step explanation:

Population decrease = 5,416,000 - 4,787,000 = 629,000

Percentage decrease = (decrease ÷ original population) × 100

Percentage decrease = \frac{629,000}{5,416,000} × 100 = 11.61373708%

Or 11.6% decrease (rounded off to the nearest tenth)

3 0
3 years ago
Pls help me
andrezito [222]

Step-by-step explanation:

the answer is in the picture

4 0
3 years ago
In which step did the veterinarian make the first error?<br> Step 1<br> Step 2<br> Step 3<br> Step 4
inna [77]

Answer:step 3 Step-by-step explanation: because it is right and i took the test edge 2021

4 0
3 years ago
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