Answer:
x = - 8
Step-by-step explanation:
Given
x + 2 = - x - 5
Multiply through by 8 to clear the fractions
2x + 16 = - 5x - 40 ( add 5x to both sides )
7x + 16 = - 40 ( subtract 16 from both sides )
7x = - 56 ( divide both sides by 7 )
x = - 8
You take 60.5 and multiply it by .15 to get 15% of 60.5. This will be 9.07500. You then do 60.5 - 9.07500. This = 51.42500
Hope this helps :)
A function assigns the values. The function of the given graph is y=3(4)ˣ, thus, the correct option is C.
<h3>What is a Function?</h3>
A function assigns the value of each element of one set to the other specific element of another set.
The complete question is:
If the parent function is y = 4ˣ, which is the function of the graph?
y = −2(4)ˣ
y = −3(4)ˣ
y = 3(4)ˣ
y = 2(4)ˣ
Since the graph intersect the y-axis at 3, and the parent function of the function is y=4ˣ, therefore, we can write,
y = A(4)ˣ
3 = A(4)⁰
3 = A × 1
A = 3
Hence, the function of the given graph is y=3(4)ˣ, thus, the correct option is C.
Learn more about Function:
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Answer:
The answer to your question is a = 2
Step-by-step explanation:
Data
root = -1
Polynomial p(x) = ax³ - x² + x + 4
Process
If -1 is a root of the polynomial, then, we must equal the polynomial to zero and substitute -1 and solve it for a.
1.- Equal to zero
ax³ - x² + x + 4 = 0
2.- Evaluate in -1
a(-1)³ - (-1)² + (-1) + 4 = 0
3.- Simplification
- a -1 - 1 + 4 = 0
-a + 2 = 0
4.-Solve for a
-a = -2
a = 2
ISSA NEGATIVE CORRELATION MY G