The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable
Answer:
A. Between 3.0 and 3.5 and between 4.0 and 4.5
Step-by-step explanation:
The zeroes of a function occur whenever a value of x returns zero. To predict where the zeroes lie, determine the interval(s) where the function crosses the x-axis. This occurs when either goes from a negative value to a positive value or vice versa.
From and , the y-values go from 4.0 (positive) to -0.2 (negative), respectively. Therefore, there must be a zero in this interval.
From and , the y-values go from -0.8 (negative) to 0.1 (positive), respectively. Therefore, there must also be a zero in this interval.
Thus, the zeros of this function occur between 3.0 and 3.5 and between 4.0 and 4.5, leading to answer choice A.
Hello there!
Your question states: What is this expression 2(5x-1)+14
2 * 5x = 10x
2 * -1 = -2
10x + -2 + 14 = 10x + 12
Your answer is 10x + 12
Hope I helped!
Let me know if you need anything else!
~ Zoe
Answer:
purchase cost + 338500
Step-by-step explanation:
given that immediately after acquisition, Samtech demolished the building. Demolition costs were $260,000 and the salvaged materials were sold for $6,500.
In addition, Samtech spent $80,000 clearing and grading the land in preparation for the construction of a new building.
Thus initial valuation of the asset = purchase cost + expenses - sale value of salvaged materials
Hence here we get
initial value = purchase cost + 260000-6500+80000
= purchase cost + 338500
Solve this like a regular equation:
2n + 5 > 1
2n > -4
n > -2
Hope this helped!