Range of is [4,∞).
<u>Step-by-step explanation:</u>
Here we have , function , We need to find range of this function . Let's find out:
In the function , Let's focus on : It's a perfect square whose value will be always positive and greater then equal to zero i.e.
⇒ , So minimum value of is 0 at x=-3 . ∴
⇒
⇒
⇒
Minimum value of is 4 , And maximum value of can be ∞ as value of x can be increased . Therefore , Range of is [4,∞).
Answer:
6x-6-6-5x+2 = x - 10
Step-by-step explanation:
Simply each expression
6x-6-6-5x+2
= x - 10
Answer:
-1.00
Step-by-step explanation:
Given that a publisher reports that 45% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is actually different from the reported percentage.
Sample size n =190
Sample proportion p = 0.41
(Two tailed test )
Assuming H0 to be true
std error =
p difference = -0.04
Test statistic = p differencce/std error
= -1
Hence test statistic is -1.00
Combine the terms by multiplying into a single fraction.
Find the common denominator.
Combine fractions with the lowest common denominator.
Multiply the numbers.
Combine the multiplied terms into a single fraction
Find the common denominator.
Combine fractions with the lowest common denominator.
Multiply the numbers.
Eliminate the denominators of the fractions.
Cancel the multiplied terms that are in the denominator.
To distribute.
Add 28 to both sides.
Simplify
Subtract 3x from both sides.
Simplify
Divide both sides by the same factor.
Simplify
↓
<h3>Verification</h3>
Let x=12.
Checked ✅
1 quarter, 2 dimes, 2 nickels, 10 pennies