Answer:
f(-4) = ⅑
Step-by-step explanation:
Given
f(x) = 9(3)^x
Required.
Find f(-4)
f(x) = 9(3)^x
Substitute -4 for x
f(-4) = 9(3)^(-4)
Apply laws of indices
f(-4) = 9 * 1/(3⁴)
f(-4) = 9 * (⅓)⁴
f(-4) = 9 * 1/81
f(-4) = 9/81
Simplify
f(-4) = ⅑
Answer:
1. Sides 1 and 2 are congruent so sides 3 are also congruent
2. Since angles D and R are the same and the two sides are the same, the triangles are the same
You set all three numbers to a common denominator and compare them:
7/12 = 7/12
1/3 = 4/12
2/3= 8/12
Therefore 7/12 is greaer than 4/12 (or 1/3) but less than 8/12 (2/3)/
Hello.
Parenthesis is going to be your best friend on this problem.
Let's write it out.
-10x² + 6x +5
- (-8x² +10x+5)
_________________ This becomes:
-10x² + 6x +5
+8x² - 10x - 5
________________ Now simplify. Parenthesis disappear because the negative/ subtraction sign has been distributed.
-2x² - 4x
Hope this helped.
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Disclaimer:
Always double check with a reliable source, as mistakes can be made.