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Sloan [31]
2 years ago
12

Y=-x+7

Mathematics
1 answer:
Allisa [31]2 years ago
6 0
Question 1:
y=-x+7
y=2x-2

(-x+7)=2x-2
-x+7+x=2x-2+x
7=2x-2+x
7+2=2x-2+x+2
9=3x
9/3=3x/3
3=x

y=-x+7
y=-(3)+7
y=4

Question 2:
y-1=2x
y+2x=5

y-1=2x
y-1+1=2x+1
y=2x

(2x+1)+2x=5
2x+1+2x=5
4x+1=5
4x+1-1=5-1
4x=4
4x/4=4/4
x=1

y-1=2(1)
y-1+1=2+1
y=3

Answer: x=1 y=3

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Factor 5x4 - 30x2 - 135.
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Answer:

-175

Step-by-step explanation:

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I hope this helps!

7 0
3 years ago
Can you help me solve this?
Wittaler [7]

Answer:

y=-1/2x+4 Is your answer

Step-by-step explanation:

y=mx+b

3=2x+4

-1=2x

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You already know y is 4 so y=-1/2x+4

4 0
3 years ago
F(x) = -4x - 3<br> Evaluate f(9) + f(5)=
RSB [31]

Evaluate f(9) + f(5)= 14f If I didn't answer Your Question fully than tell me please!

7 0
3 years ago
What is the equation of the line that passes through the point (3,2) and has a slope of 2/3 ​
Sladkaya [172]

Answer:

y= ⅔x +1

Step-by-step explanation:

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3 years ago
For a moving object, the force acting on the object varies directly with the objects acceleration. When a force of 35 N acts on
Genrish500 [490]
<h3>Answer:  3 m/s^2</h3>

=======================================================

According to Newton's Second Law, we know that

F = m*a

where F is the force applied, m is the mass and 'a' is the acceleration.

We see that this is a direct variation equation for F and a, such that m is the constant of variation. It's similar to how y = kx is also a direct variation equation.

Plug in F = 35 and a = 5 to find m

F = ma

35 = m*5

35/5 = m

7 = m

m = 7

The object has a mass of 7 kg

Our equation F = ma updates to F = 7a

Now plug in the force F = 21 to find 'a'

F = 7a

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Notice how a smaller force applied means that the acceleration has also gone down as well.

8 0
2 years ago
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