The numerical value of the expression (6x² - 4x - 7) when x =2 is 9
<h3>What is the numerical value of the expression when x=2?</h3>
Given the expression in the question;
6x² - 4x - 7
x = 2
To determine the numerical value of the expression when x =2, replace all the occurrence of x with 2 in the expression and simplify.
6x² - 4x - 7
6(2)² - 4(2) - 7
24 - 8 - 7
24 - 15
9
Therefore, the numerical value of the expression (6x² - 4x - 7) when x =2 is 9
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Answer:
This property states that if a = b, then b = a.
Step-by-step explanation:
That is, we can interchange the sides of an equation and the equation could still be true
18-carat gold is 75 percent pure, and gold ratings are proportional, you know that...
<span>18 / 75 = 24 / x </span>
<span>X needs to have the same relationship to 24 that 75 has to 18. </span>
To solve, simply cross-multiply (multiply the numerator in one fraction by the denominator in the opposite fraction, and vice versa). The resulting products will be equal. Then, simply divide away the remaining coefficient to solve for x.
<span>18 / 75 = 24 / x </span>
<span>18x = 24 * 75 = 1800 </span>
<span>x = 1800 / 18 = 100 </span>
<span>x = 100 </span>
<span>Therefore, the purity of 24 carat gold is 100%.</span>
Answer:
The trig ratios can be used to find lots of information, and one of their main purposes is to help solve triangles. To solve a triangle means to find the length of all the sides and the measure of all the angles.
Answer:
24.73
Step-by-step explanation:
h=63.4+2.41f
h=123
123=63.4+2.41f
59.6=2.41f
24.73=f
