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<u>Solve </u><u>for </u><u>f</u><u> </u><u>:</u>
f = 27.9 ✅
<em>></em><em> </em><em>Given </em><em>expression </em><em>:</em><em> </em>
<em>></em><em> </em><em>Multiply </em><em>both </em><em>sides </em><em>by </em><em>9</em><em> </em><em>:</em>
Therefore, our answer is f = 27.9
▪️Learn more about <em>first-degree </em><em>equations</em><em>:</em><em> </em>
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19 - 1.4 - 4.2 - 1.625 - 1.125 - 5 = 5.65
The slope (or the number before the variable) is always the rate of change, so in this case it’d be -1500
Answer:
No, it is not a right triangle.
Using the Pythagorean theorem the longest side would need to be 21.26 meters , not 20, in order to be a right triangle.
Answer:
x = 9 or x = -21
Step-by-step explanation:
Solve for x over the real numbers:
x^2 + 12 x - 189 = 0
The left hand side factors into a product with two terms:
(x - 9) (x + 21) = 0
Split into two equations:
x - 9 = 0 or x + 21 = 0
Add 9 to both sides:
x = 9 or x + 21 = 0
Subtract 21 from both sides:
Answer: x = 9 or x = -21
