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olga nikolaevna [1]
3 years ago
14

When would there be only four different equations for a set of math mountain numbers

Mathematics
2 answers:
Yuri [45]3 years ago
7 0
It is called a fact family

RSB [31]3 years ago
4 0
The name it is called a fact family
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Help help help math math
ziro4ka [17]

Answer:

-2

Step-by-step explanation:

(-3x/2) - 3 = 3

add 3 to both sides

(-3x/2) = 3

multiply both sides by 2

-3x = 6

divide both sides by -3

x= -2

5 0
2 years ago
Evaluate 2(4-1)^2<br><br> A. 60<br> B. 30<br> C. 18<br> D. 36
iogann1982 [59]
Remember the rules of PEMDAS

1. First you want to evaluate the parentheses. (4-1) = 3

2. Square:
3^2 = 9

3. Multiply: 9*2 = 18

Your answer is C
4 0
3 years ago
Write each quadratic expression in standard form. Draw a diagram if needed.<br> (x+4)(x-1)
12345 [234]

Answer:

The standard form of the quadratic equation is x² + 3·x - 4 = 0

Step-by-step explanation:

The standard form of a quadratic equation is a·x² + b·x + c = 0

Given that the expression of the quadratic equation is (x + 4)·(x - 1) = y, we can write the given expression in standard form by expanding, and equating the result to zero as follows;

(x + 4)·(x - 1) = x² - x + 4·x - 4 = x² + 3·x - 4 = 0

The standard form of the quadratic equation is x² + 3·x - 4 = 0

The graph of the equation created with MS Excel is attached

4 0
3 years ago
Solve for q in the proportion
velikii [3]

Answer:

q=14

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which of these graphs represents a rate of change of 4?
mamaluj [8]
<h2><em>The last graph because the slope is 40. </em></h2><h2><em> </em></h2><h2><em>Slope equals rise over run </em></h2><h2><em> </em></h2><h2><em>Rise is 4/ Run is 1 </em></h2><h2><em> </em></h2><h2><em>4/1=4 </em></h2><h2><em> </em></h2><h2><em>Slope (rate of change)=4</em></h2><h2><u><em>C</em></u></h2>
7 0
3 years ago
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