Answer:
28.9
Step-by-step explanation:
In ΔVWX, the measure of ∠X=90°, the measure of ∠W=9°, and WX = 8.7 feet. Find the length of XV to the nearest tenth of a foot.
Answer:
Step-by-step explanation:
To solve for y, you have to isolate it on one side of the equation.
<h3>12x+3y=9</h3>
<u>First, you have to subtract by 12x from both sides.</u>
<u>Solve.</u>
<u>Then, you divide by 3 from both sides.</u>
<u>Solve.</u>
Use the distributive property.
<h3>⇒A(B+C)=AB+AC</h3>
9-12x=3(3-4x)
<u>Divide the numbers from left to right.</u>
3/3=1
3-4x
<u>Then, rewrite the problem down.</u>
- <u>Therefore, the correct answer is y=3-4x.</u>
I hope this helps! Let me know if you have any questions.
Factoring a trinomial is a tedious process, sometimes involving a trial-and-error process. The best approach would be to try out all the choices, replace them with x, and see if it satisfies the equation to be equal to zero. Since no choice are given, we use another technique: by using the scientific calculator under mode EQN (equation).
Once you're in mode EQN, choose the trinomial (ax^3 + bx^2 +cx +d =0).Then, all you have to do is substitute the coefficients (a=3, b = 8, c = -87, d = 28). Press equals, then the three roots would appear.
The roots, and therefore factors, are -7, 4 and 1/3. Any of those are factors of the given equation.
Answer:
Can you attach the figure?
Step-by-step explanation:
<u>We are given:</u>
f(x) = -x² - 1
g(x) = x + 5
<u>Finding f(g(x)):</u>
because g(x) = x+5
f(g(x)) = f(x+5)
f(x+5) = -(x+5)² - 1
f(x+5) = -(x² + 25 + 10x) - 1
f(x+5) = -x² - 25 - 10x - 1
f(x+5) = -x² - 10x - 26
comparing with the question,
first blank = (-1)
second blank = (-10)
third blank = (-26)
