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Oksi-84 [34.3K]
4 years ago
12

Which number should go in the square? []+7=7+4

Mathematics
1 answer:
sleet_krkn [62]4 years ago
4 0

Answer:

4

Step-by-step explanation:

commutative property

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2 ( 3x + 2 ) = 2x + 28
iogann1982 [59]

Answer: x = 6

Step-by-step explanation:

1. Distribute

2. Subtract 4 from both sides of the equation

3. Simplify

4. Subtract 2x from both sides of the equation

5. Simplify

6. Divide both sides of the equation by the same term

7. Simplify

6 0
2 years ago
Read 2 more answers
There are 5 red marbles, 8 blue marbles, and 12 green marbles in a bag. What is the theoretical probability of randomly drawing
irinina [24]
The answer is 52% because there is a total of 25 marbles and if you add the red and blue marbles you get 14 which is more than the green mables which is more than half the amount of the total marbles
5 0
3 years ago
Find the linear equations written in standard form. Select all that apply.
ioda

Answer:

Select:

-3x = y

y = 5x -2

6 0
3 years ago
Given the graph of a scatterplot and a trend line, explain how you would find the equation of the trend line.
SpyIntel [72]

To find the equation of a trend line, It is important to find the X axis and Y axis, Once x axis and y axis  is found if there is an association between x axis and y axis, We use linear equation to produce the trend line. Linear regression or algorithm called as OLS (Ordinary least square). Y= mx +c

y = dependent variable, x = independent variable , constant = c , m  = y2-y1/x2-x1.

Step-by-step explanation:

  • Scatter plot is to find association of two different variable.
  • Trend line is the equation between xaxis and y axis.
  • Prediction is best way to form equation.
  • Linear regression y=mx +c
  • Equation helps in predictive modelling between next best form.
  • Y is a dependent variable or example sales.
  • X can be n number of variable involved in the association rule.
  • Linear regression is starting phase of data analysis.
  • C = constant there is a certain point, where system has been started.
  • Stock market did not start from 0 it started at a certain point.

5 0
3 years ago
Read 2 more answers
What is the solution set to the following quadratic?
Svetach [21]

Answer:

x=-1, -6

Step-by-step explanation:

x^2+7x+6=0

factor

(x+1)(x+6)=0

x+1=0, x+6=0

x=0-1=-1

x=0-6=-6

5 0
3 years ago
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