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4 years ago

The school plans to spend $5000 to order computers for its

Mathematics

1 answer:

ioda4 years ago

3 0

Answer:

$400

Step-by-step explanation:

12c+200=5000 (12*c)+200=5000

c = 400 per computer

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sin x = -1/2, and the cos y = √3/2. if angle x is in the fourth quadrant and angle y is in the first quadrant, the value of cos(

skad [1K]

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Step-by-step explanation:

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3 years ago

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Write the equation of a line that passes through the points ( 2 , - 5 ) and ( 8 , - 2 )

kati45 [8]

Answer:

$y=\frac{1}{2}x-6$

Step-by-step explanation:

Hi there!

Linear equations are typically organized in slope-intercept form: $y=mx+b$ where m is the slope and b is the y-intercept (the value of y when the line crosses the y-axis)

<u>1) Determine the slope (m)</u>

$m=\frac{y_2-y_1}{x_2-x_1}$ where two points that fall on the line are $(x_1,y_1)$ and $(x_2,y_2)$

Plug in the given points (2,-5) and (8,-2)

$m=\frac{y_2-y_1}{x_2-x_1}\\=\frac{-2-(-5)}{8-2}\\=\frac{-2+5}{8-2}\\=\frac{3}{6}\\=\frac{1}{2}$

Therefore, the slope of the line is $\frac{1}{2}$ . Plug this into $y=mx+b$ :

$y=\frac{1}{2}x+b$

<u>2) Determine the y-intercept (b)</u>

$y=\frac{1}{2}x+b$

Plug in one of the given points and solve for b

$-5=\frac{1}{2}(2)+b\\-5=1+b$

Subtract 1 from both sides to isolate b

$-5-1=1+b-1\\-6=b$

Therefore, the y-intercept of the line is -6. Plug this back into $y=\frac{1}{2}x+b$ :

$y=\frac{1}{2}x+(-6)\\y=\frac{1}{2}x-6$

I hope this helps!

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3 years ago

I need some to report my last 4 questions

eduard

Answer:

Will do!

I get the scam links too

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3 years ago

Calculate the slope of a line that intersects points(6,2) and (-4,_3).

Aleks04 [339]

If that is a negative three then the slope is .5 But if the three is not a negative then the answer is -0.1

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3 years ago

Drew exercises every eight days and sara every 12 days. drew and sara both exercised today. how many days will it be until they

xenn [34]

It will take 24 days for them to exercise together. You have to find a common number that both 8 and 12 go into evenly so 8x1=8, 8x2=16, 8x3=24 and 12x1=12, 12x2=24. So this will be Drew's third time at the gym and Sara's second time when they both go together

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3 years ago