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Ne4ueva [31]
3 years ago
10

Help me plz good points

Mathematics
1 answer:
Valentin [98]3 years ago
7 0

you find the LCM of 3, 4 and 7 which is 84.

84/3= 28 so x= 28

84/4= 21 so y=21

84/7= 12 so z=12

therefore, 28+21+12= 61. Your answer is D

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Find the length of one side of a square if the perimeter of the square is 20 inches.
damaskus [11]

Answer:

5 inches

Step-by-step explanation:

A square is all equal sides, so 20 inches divided by 4 is 5 inches.

Hope this helps :)

7 0
3 years ago
Show how you got the answer.. It is NOT B... THIS IS URGENT ANSWER FAST PLZ
Alborosie

Answer:

it doesn't make any sense the answer is supposed to be b

Step-by-step explanation:

4 0
2 years ago
Someone please help these practice problems are hard
mr Goodwill [35]

Rewrite the equation in slope-intercept form:

9x - 7y = 21

-7y = -9x + 21

y = (9/7)(x) - 3

The y-intercept is where x = 0.

y = (9/7)(0) - 3

y = 0 - 3

y = -3

The x-intercept is where y = 0.

0 = (9/7)(x) - 3

3 = (9/7)(x)

21 = 9x

x = 21/9

x = 7/3

The correct answer would be C. The x-intercept would be at (7/3, 0) and the y-intercept at (0, -3). Hope that helps! :)

7 0
3 years ago
In this scatterplot the individuals are states. The variable "cig" is the number of cigarettes sold per person in the state in 1
Ipatiy [6.2K]

Answer:

e= -5.41

Step-by-step explanation:

Hello!

In linear regression, a residual value is a distance between the observed values and the regression line.

The residual value (e) is calculated as the difference between the observed value (Y) and the predicted value (^Y).

e= Y - ^Y

e= 15.92 - 21.33 = -5.41

I hope it helps!

5 0
3 years ago
Multiply (5x2 + x − 4)(x + 2).
Trava [24]
(x + 2)(5x^2 + x - 4) =
x(5x^2 + x - 4) + 2(5x^2 + x - 4) =
5x^3 + x^2 - 4x + 10x^2 + 2x - 8 =
5x^3 + 11x^2 - 2x - 8 <===

6 0
3 years ago
Read 2 more answers
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