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LiRa [457]
3 years ago
5

Help on number 21. PLZZZ

Mathematics
1 answer:
brilliants [131]3 years ago
5 0
X is -2 when 7+x=5
So 3*-2+2=-6+2
The answer is -4
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Match the information on the left with the appropriate equation on the right.
kiruha [24]

Answer:

See attachment below

Step-by-step explanation:

For the first option, we are given m = - 2 / 3, b = 3. This is likely in the point - slope form y = mx + b, where m = slope and b = y - intercept. Thus, the equation of the line in point - slope form given this information, should be y = - 2 / 3x + 3. It seems as if none of the following equations match this form, so let us interchange the equation a bit,

y = - 2 / 3x + 3,

y + 2 / 3x = 3,

2x + 3y = 9 - Option C

_______________________________________________________

Next we are given m = - 3 / 2, and that this line passes through the point ( 4, - 1 ). Substitute m as - 3 / 2, x as 4, y as - 1, knowing point ( 4, - 1 ), into the form y = mx + b - solving for b.

- 1 = ( - 3 / 2 )( 4 ) + b,

b = 5,

Thus the equation in point - slope form should be y = - 3 / 2x + 5. None of the choices match this, so let us again alter the equation,

y = - 3 / 2x + 5,

2y = - 3x + 10,

- 2y = 3x - 10 - Option A

_______________________________________________________

( 6, 3 ) and ( 3, 1 ) is given to lie on this line. The slope of the line should be as follows,

Slope = 3 - 1 / 6 - 3 = 2 / 3

Now let us determine the y - intercept ( b ) by substitute one of the points, say ( 6, 3 ). In this case x = 6, and y = 3,

3 = ( 2 / 3 )( 6 ) + b,

b = - 1,

y = 2 / 3x - 1 = Option D

Take a look at the attachment below for further help;

3 0
3 years ago
Yolanda and her 3 brothers shared a box of 156 toy dinosaurs . About how many dilnosaurs did each kid get
anygoal [31]

Answer:

52

Step-by-step explanation:

You divide 156 by 3 and you get your answer 52. Therefore, each kid got 52 toys each.

8 0
3 years ago
Read 2 more answers
A certain rectangular prism has a height of 6 m, a length of 5 m, and a width of 4 m. Give the dimensions of a second rectangula
trasher [3.6K]

Answer:

height = length = width = \sqrt \frac{74}{3}

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Someone please help me with this question ✨
Mrrafil [7]
A and D have a lower rate than 1/3.
4 0
3 years ago
How many solutions do the systems of equations have?<br> y =-1/3 x + 9<br> y =- 2/6x
Dovator [93]
The answer is: No solution.

Explanation:
The slopes are the same (-1/3 is the same as -2/6 because -2/6 can be simplified to -1/3) but the y intercepts are different.
7 0
3 years ago
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