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Annette [7]
2 years ago
7

If x = 3.5, y = -2x + 4, what is y?

Mathematics
1 answer:
MAXImum [283]2 years ago
7 0

Answer:

x = 3.5

y = -2x + 4

y = ?

y = -2(3.5) + 4

y = -3

Step-by-step explanation:

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Use the substitution method <br> Y=-2x+11 y=-3x+21
gogolik [260]

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Y = 2 y /3 − 3


x = − y /3 + 7


Hope this helped!

6 0
3 years ago
Find the acute angle between the two given lines<br><br> y=-2x and y=x
Marina CMI [18]

Answer:

θ ≈ 71.6°

Step-by-step explanation:

The angle between two lines with slopes m₁ and m₂ is:

tan θ = | (m₂ − m₁) / (1 + m₁m₂) |

Here, m₁ = -2 and m₂ = 1.

tan θ = | (1 − (-2)) / (1 + (-2)(1)) |

tan θ = | 3 / -1 |

tan θ = 3

θ ≈ 71.6°

3 0
3 years ago
If a line is 10 feet long but needs to be reduced to 80% of its original, how long will the new line be?
motikmotik

Answer:

8 feet

Step-by-step explanation:

6 0
3 years ago
What is the 4th term of the geometric sequence with a=5 and ratio=3
denis23 [38]
The 4th term is 135 
                                                            n-1
 you get it by using the formula Tn= ar                                                <span />
8 0
3 years ago
Please help me quick!!
andrezito [222]

Answer:

B. (52,32)

Step-by-step explanation:

32 = 52 - 20

32 = 32

52 + 32 = 84

84 = 84

6 0
3 years ago
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