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coldgirl [10]
3 years ago
11

7.9y-2-3.2y-10=2.8+y

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
3 0

Answer:

y=4

Step-by-step explanation:

7.9y-2-3.2y-10=2.8+y

group like variables

4.7y -12 = 2.8 +y

isolate the variable (y)

3.7y = 14.8

solve for y through division

14.8/3.7=y

4=y

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If the trapezoid on the grid below is translated by using the rule (x,y)-> (x-4,y-3) what will be the coordinates of B’?
vesna_86 [32]

Answer:

B'(3, 5)

Step-by-step explanation:

Rule for the translation of a point (x, y) by 'h' units left and 'k' units upwards,

(x, y) → (x - h, y + k)

If h = 4 and k = 3,

(x, y)\rightarrow(x-4,y+3)

Following this rule coordinates of the image point of B will be,

B(7, 2) → B'(7 - 4, 2 + 3)

           → B'(3, 5)

Therefore, coordinates of the image point B' will be,

B'(3, 5)

6 0
3 years ago
If f(x) =3x+5 and g(x) =x-1, then f[g(0) =?
Kisachek [45]
G(0)= 0-1= -1

f(-1)= 3(-1)+5= -3+5= 2

the answer to the question is 2
8 0
3 years ago
The distance is approximately
Norma-Jean [14]

Distance = the square root of ((x2- x1) ^ 2 + (y2 - y1) ^ 2)

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5 0
3 years ago
What is the range of the set of data this box-and-whisker plot represents? 10 12 13 14 15 16 17 18 19 20 10 8 3 6​
sesenic [268]

Answer:

The 2 box-and-whisker plot is the correct one.

Step-by-step explanation:

The first step you need to do is write the numbers from least to greatest.

5, 7, 8, 10, 13, 14, 17, 17, 21. 5 and 21 will be the end points.

To make the box we need to find the median first. All you have to do is pick the middle number and it is 13. That just leaves box-and-whisker plots 2 and 3.

To find the first and third quartile, you need to take the other numbers from 13 to the left (10+8+7+5) and add them up then divide by 4 to get 7.5 and that is the first quartile.

To find the third quartile, you will go from 13 to the right (14+17+17+21) and divide by 4 to get 17.25.  

This equals the 2nd box-and-whisker plot.

8 0
3 years ago
I need help on this question plz
Gnom [1K]

That's unbiased.

That's unbiased.

5 0
3 years ago
Read 2 more answers
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