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oksian1 [2.3K]
2 years ago
6

Bernice found that the slope of a trend line is –3 and a point on the trend line is (8, 10). She wanted to find the equation of

the trend line. Her work is shown below. 1. y = negative 3 x + b. 2. 8 = negative 3 (10) + b. 3. 8 = negative 30 + b. 4. 8 + 30 = negative 30 + 30 + b. 5. 38 = b. Examine Bernice’s steps.In which step did she make an error? In step 1,she used the wrong equation. In step 2,she switched the x and y coordinate values. In step 3,she needed to add -3 and 10 In step 4,she needed to -30 on both sides
Mathematics
1 answer:
shusha [124]2 years ago
5 0

Answer:b

Step-by-step explanation:

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39 divided by 780 help me
Fudgin [204]

Answer:

20

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Please help ill give brainliest pls dont guess
LiRa [457]
When y=2 and y=5

1. 2y-1 and (3y-5+y or 4y-5)
when y=2 ; 2(2)-1 = 3 and 4(2)-5=3
when y=5 ; 2(5)-1 = 9 and 4(5)-5=15

----nonequivalent-----

2.5y+4 and (7y+4-2y or 5y+4)
so you don't have to place any value in because 5y+4 and 7y+4-2y are equal,
whatever you place any value in, it will be all the same then

-----equivalent------

and no need to find more
7 0
2 years ago
What is the domain of the function represented by the graph? A graph shows an upward parabola on a coordinate plane vertex at (m
vlabodo [156]

Using it's concept, the domain of the function represented by the graph is all real numbers.

<h3>What is the domain of a function?</h3>

The domain of a function is the set that contains all possible input values for the function.

In this problem, a parabola is used, which has no restriction such as an even root or a fraction, hence the domain is all real values.

More can be learned about the domain of a function at brainly.com/question/10891721

#SPJ1

3 0
1 year ago
PLEASE ANSWER THE BLANKS PLEASE AND USE AN ANSWER FROM THE PARENTHESES BESIDE THE QUESTION, I'M GIVING BRAINLIEST IF YOU ANSWER
sleet_krkn [62]

Answer 1a 18 1b 36 1c 648

1a : if you look at the shape you will see its made of squares. I counted the squares, its 18.

1b : one side is 6 in. since its a square all sides are equal. so multiply 6 by 6 to get 36.

1c : this one is easy. We take the number of squares across the surface (18) by the area of each square (36) it is 648.

Also sorry I didn't make this clearer earlier.

5 0
2 years ago
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yarga [219]

9514 1404 393

Answer:

  • x/45 = 9 m/30
  • x = 13.5 . . . meters

Step-by-step explanation:

In similar triangles, corresponding sides are proportional. This lets us write an equation involving x. Sides adjacent are proportional to sides opposite the vertical angle.

  x/45 = 9/30

__

Multiplying by 45 gives the solution:

  x = 45(9/30) = 13.5 . . . meters

4 0
2 years ago
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