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How do you determine which region to shade to indicate the solution set of a system linear equation?
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Is m 7 a solution to the equation 2m 3 3m 3?
To determine if ( m = 7 ) is a solution to the equation ( 2m = 3m + 3 ), substitute ( m ) with 7: [ 2(7) = 3(7) + 3 ] [ 14 = 21 + 3 ] [ 14 = 24 ] Since this statement is false, ( m = 7 ) is not a solution to the equation.
Is (2 -3) a solution of x 5y 4?
To determine if (2, -3) is a solution of the equation ( x + 5y = 4 ), we substitute ( x = 2 ) and ( y = -3 ) into the equation. This gives us ( 2 + 5(-3) = 2 - 15 = -13 ), which does not equal 4. Therefore, (2, -3) is not a solution of the equation.
You are given a colourless solution Describe three tests you would carry out to determine whether the solution is an acid or an alkali without tasting or using indicators?
Test for electrical conductivity: Acids conduct electricity in solution due to the presence of hydrogen ions, while alkalis conduct electricity due to the presence of hydroxide ions. By testing the electrical conductivity of the solution using a conductivity meter, you can determine whether it is acidic or alkaline based on the level of conductivity observed. Test for reaction with metals: Acids react with active metals such as magnesium or zinc to produce hydrogen gas. Alkalis, on the other hand, do not react with metals in the same way. By adding a small piece of metal to the solution and observing for the formation of gas bubbles, you can deduce whether the solution is acidic or alkaline. Test for reaction with carbonate compounds: Acids react with carbonates to produce carbon dioxide gas, while alkalis do not react with carbonates in the same way. By adding a small amount of carbonate compound, such as baking soda, to the solution and observing for the effervescence of gas bubbles, you can determine whether the solution is acidic or alkaline.
Is x2-9 a solution or no solution?
To determine if ( x^2 - 9 ) is a solution or no solution, we need more context, such as an equation or inequality to solve. If you are asking if ( x^2 - 9 = 0 ) has solutions, then yes, it does, as it can be factored to ( (x - 3)(x + 3) = 0 ), giving solutions ( x = 3 ) and ( x = -3 ). If you're referring to something else, please provide additional details.
Is 8765 and 4 an arithmetic sequence?
In order to determine whether or not this is an arithmetic sequence, there must be at least 3 numbers.
Is x3 a solution of the equation 3x-54x?
To determine if ( x^3 ) is a solution of the equation ( 3x - 54x = 0 ), we first simplify the equation. The left side simplifies to ( -51x = 0 ), which implies ( x = 0 ) is the only solution. Since ( x^3 ) is not equal to ( 0 ) for any ( x ) other than ( 0 ), ( x^3 ) is not a solution to the equation.
Show whether 0 3 is the solution of the linear system below 2x plus y equals -3 x plus 2y equals 8?
For (x, y) = (0, 3) the first equation gives: 2*0 + 3 = -3 that is, +3 = -3 which is FALSE. So (0, 3) is not a solution.
Is 3 the solution to -13-1 equals x-15?
To determine if 3 is the solution to the equation (-13 - 1 = x - 15), we first simplify the left side: (-13 - 1 = -14). The equation then becomes (-14 = x - 15). Adding 15 to both sides gives (x = 1), not 3. Therefore, 3 is not the solution.
Which point is a solution of the equation y-7x 3?
To determine if a point is a solution to the equation ( y - 7x = 3 ), you need to substitute the x and y coordinates of the point into the equation. If the left side equals the right side (3), then the point is a solution. For example, for the point (1, 10): substituting gives ( 10 - 7(1) = 3 ), which satisfies the equation, making (1, 10) a solution.
What is the molatity of a solution made by dissolving 6 moles of NaOH in 3 kg of water?
Molarity is defined as the number of moles of solute per liter of solution. To find the molarity of the NaOH solution, we first need to determine the total volume of the solution. Since the density of water is approximately 1 kg/L, 3 kg of water is roughly 3 L. Therefore, the molarity of the solution is 6 moles of NaOH divided by 3 L of solution, which equals 2 M (moles per liter).
What is the molarity of a solution that has 6 moles CaCl2 in 3 kg of water?
To find the molarity of the solution, first, we need to determine the total volume of the solution in liters. Since the density of water is approximately 1 kg/L, 3 kg of water corresponds to about 3 liters. Molarity (M) is calculated as moles of solute divided by the volume of solution in liters. Thus, the molarity of the solution is ( \frac{6 \text{ moles}}{3 \text{ L}} = 2 \text{ M} ).
