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kipiarov [429]
3 years ago
9

What is the value of -3mn + 4m - 3 when m = 2 and n = -4?

Mathematics
2 answers:
photoshop1234 [79]3 years ago
6 0
The value will be 29
grandymaker [24]3 years ago
4 0
-3(2)(-4)+4(2)-3=24+8-3=29

The value is 29
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10. Both x and y vary inversely with each other. When x is 10, y is 6,which of the following is not a possible pair of correspon
elena55 [62]

9514 1404 393

Answer:

  D) 45 and 1.2

Step-by-step explanation:

The "varies inversely" relationship is described by the equation ...

  y = k/x . . . . . . y varies inversely with x (and vice versa)

The value of k can be found from known values of x and y:

  xy = k . . . . . . multiply the above equation by x

  (10)(6) = k = 60 . . . . using the given values

__

To check if a given pair of numbers satisfies ...

  y = 60/x

you can multiply them together to see if the product is 60.

  (A) 12×5 = 60

  (B) 15×4 = 60

  (C) 25×2.4 = 60

  (D) 45×1.2 = 54 . . . . . not a possible pair of corresponding values.

45 and 1.2 are not a possible solution for x and y.

8 0
2 years ago
Is the distance around a circle . You calculate the of a circle by multiplying the diameter by 3.14
anzhelika [568]
Distance around a circle is CIRCUMFERENCE
DIAMETER*PI=CIRCUMFERENCE
7 0
3 years ago
Which statement is true about the parts of this expression?
olganol [36]
<span>A) The constant is 7.5.  FALSE.  7.5 is a coefficient, not a constant.

</span><span>B) The coefficients are 7.5 and -9.  FALSE.  The coefficients are 7.5, -1/9 and 2.  50, being a constant, could be regarded as a coefficient in this case.

</span><span>C) The variables are x and y.  FALSE.  There are three variables:  x, y and z.

</span><span>D) The like terms are 7.5y and 2y.  TRUE.  The variable (y) is the same in each term.</span><span>

</span>
4 0
3 years ago
Read 2 more answers
Please help 9/5a+12=5
vova2212 [387]
A = -35/9 is the answer
8 0
3 years ago
What equation is represented by the equation on the graph ?
solmaris [256]

Answer: The correct option is D.

Explanation:

From the graph we noticed that the x intercept of the line is (2,0) and the y-intercept is (0,2).

If the line passing through two points then the equation of line is,

y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)

Since the ien passing through (2,0) and (0,2).

y-0=\frac{2-0}{0-2}(x-2)

y=-1(x-2)

y=-x+2

This equation is represented by option D, therefore the option D is correct.

6 0
3 years ago
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