Which best describes the graph of the function f(x) = -5x ?
1 answer:
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Answer:
see explanation
Step-by-step explanation:
Given
4 - 5a² + 1 = 0
Use the substitution u = a², then equation is
4u² - 5u + 1 = 0
Consider the product of the coefficient of the u² term and the constant term
product = 4 × 1 = 4 and sum = - 5
The factors are - 4 and - 1
Use these factors to split the u- term
4u² - 4u - u + 1 = 0 ( factor the first/second and third/fourth terms )
4u(u - 1) - 1(u - 1) = 0 ← factor out (u - 1) from each term
(u - 1)(4u - 1) = 0
Equate each factor to zero and solve for u
u - 1 = 0 ⇒ u = 1
4u - 1 = 0 ⇒ 4u = 1 ⇒ u =
Convert u back into terms of a, that is
a² = 1 ⇒ a = ± 1
a² = ⇒ a = ±
Solutions are a = ± 1 , a = ±
Answer:
<em>Bethany did not do better than Richie because her average score was less than his.</em>
Step-by-step explanation:
<u>Average Value</u>
The average or mean value of m successes out of n tries is given by:
During a practice session playing basketball, Richie made m=12 free throws from n=15 attempts. His average score was:
Bethany made 8 free throws for every 3 that she missed, this means she made 8 out of 11 attempts. Her average score was:
Bethany did not do better than Richie because her average score was less than his.
Greetings!
"Solve and check
"...
Solve for x<span>:
</span>
Remove the Parenthesis.
Simplify.
Add -4 to both sides.
Simplify.
Add 8x to both sides.
Simplify.
Divide both sides by 12.
Simplify.
The answer is: <em>x=-0.166666667
</em>Hope this helps.
<em></em>-Benjamin
"Solve and check
Solve for x<span>:
</span>
Remove the Parenthesis.
Simplify.
Add -4 to both sides.
Simplify.
Add 8x to both sides.
Simplify.
Divide both sides by 12.
Simplify.
The answer is: <em>x=-0.166666667
</em>Hope this helps.
<em></em>-Benjamin