Help me with 1,2,3 :)

Answers

Answer 1

Answer: 1.) 4x and 9 are terms in 4x + 9

2.) The number line represents a solution to an equation.

3.) 9 is a constant in 2n - 6m + 9

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Help me im having trouble on slopes

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Answer:

The slope-intercept form of an equation looks like this: y=mx+b

The m stands for the slope and the b stands for the y-intercept.

We need two points from the line to write out this equation.

For example (-2,0) and (1,2)

Now that we have the slope, we can plug it into our equation: y= 2/3x + b

To get b, our y-intercept, we just need to plug in one of the points found and solve. For example (-2,0)

Now that we have both our m and b values, we can plug them in to get our equation: y=2/3x + 4/3

Step-by-step explanation:

$m= (y1-y2)/(x1-x2) = (0-2)/(-2-1)$

$m=(-2)/(-3) = (2)/(3)$

$0=(2)/(3)(-2)+b$

$0=-(4)/(3)+b\n 0+(4)/(3)=-(4)/(3)+(4)/(3)+b\n 0+(4)/(3)=b\n (0*3)/(3)+(4)/(3)=b\n (4)/(3)=b$

If 18 in is equal to 1 1/2 feet how many feet is a 36 in board

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The answers 3 cuz 18divided by 1 1/2 is 12 and 12 divided by 36 is 3

Civil engineer wants to estimate the maximum number of cars that can safely travel on a particular road at a given speed. He assumes that each car is 14 feet long, travels at speed S, and follows the car in front of it at a safe distance for that speed. He finds that the number N of cars that can pass a given spot per minute is modeled by the function N=(89s)/(14+14(s/17)^2))

At what speed can the greatest number of cars travel safely on that road? Assume that the maximum possible speed of a car is less than 300.

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$N(s)= (89s)/(14+14( (s)/(17))^2 )\n\nN'(s)= ((89s)/(14+14( (s)/(17))^2 ) )'= (89* 14(1+( (s)/(17))^2)-89s* (28)/(17) )/(14^2(1+( (s)/(17))^2)) \n\nN'(s)=0\n\n89* 14(1+( (s)/(17))^2)-89s* (28)/(17)=0\n\n1+( (s)/(17))^2- (2s)/(17) =0\n\n289+s^2-34s=0\n\ns^2-34s+289=0\n\n(s-17)^2=0\n\ns=17$

In what city did the bolsheviks seize power and end the rule of the czars

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I think it might be Petrograd

Solve the equation.
1) 2(1.5n + 4) -6n= -7

2) 5s - 2 + 3 (s - 11) = 5

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I hope this helps you

The expression (x8 - 48) can be factored as (x2 - 42)2 (x2 + 42)2.
a. True
b. False

Answers

I think the answer is false, but I'm not sure. I wish I could help more ):

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What is 6.42 written as a fraction in lowest terms?