Hi
f(x) = g(x) if -x²+3x-2 - ( -x+1) = 0
-x² +3x-2 +x-1 = 0
-x² +4x -3 = 0
To solve, tou have to use the general method of resolution of a quadratic fonction.
To determine if it's has a solution in R, let's calculate Δ
Δ = (4)² - 4 * (1) *(-3)
Δ = 16 +12
Δ= 28
as Δ≥ 0 so the function allow two solution within R
so S 1 = ( -4 +√28) / 2 S 2 = (-4 -√28 ) /2
S1 = ( -4 + 2√7) /2 S2 = (-4 - 2√7) /2
S1 = (2 (-2 +√7) /2 S2 2 (-2 -√7) /2
S1 = -2 +√7 S2 = -2 -√7
So the two function are equal twice. one for x = -2 +√7 and second x = -2-√7
Answer:
36 red blocks.
Step-by-step explanation:
3/4 (.75)*48 = 36
The height of the rectangular sand box is 1 2/3 meters or 1.6666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666667 meters.
Answer:
27: 29.93 Seconds
28: 28 ° Fahrenheit
Step-by-step explanation:
Number #27:
Given:
#1 Lap = 14.76 seconds
#2 Lap = 15.17 seconds
Steps:
1. Use the algorithm method.
1
14.76
+ 15.17
-------------
Answer: 29.93 seconds
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Number #28:
Given:
Wind Chill Temperature: - 18 ° F
Actual Temperature: 10 ° F
Steps:
1. Subtract 18 from 10.
Answer: - 28 ° degrees fahrenheit
Note: Whenever there is a negative sign next to a temperature, it means it's below freezing as the below freezing temperature is 0 ° Fahrenheit. This also means subtraction. In this case, you would subtract the negative amount from the positive amount creating an equation, that equation represents the degrees in fahrenheit:
10 - 18
The result should be -28.
This also means that the difference between both temperatures is 28 degrees. Wind chill creates a feeling of higher temperatures even though the actual temperature in the atmosphere was 10 ° F in this specific land structure.
Hope this helps,
-ROR
