Answer:
B, it's the only plausible one. A is wrong because the value would be above 180°
 
        
                    
             
        
        
        
Answer:
the first blank is 2, the second one is 1
 
        
                    
             
        
        
        
Answer:
2) 3
Step-by-step explanation:
Graphing the best-fit quadratic curve for the data-set can be done using Ms. Excel Application.
The first basic step is to enter the data into any two adjacent columns of the excel workbook. Highlight the two columns where the values have been entered, click on the insert tab and then select the x,y scatter-plot feature. This will create an x,y scatter-plot for the data. 
Next, click on the Add Chart Element feature and add a polynomial trend-line of order 2 which is basically a quadratic curve. Finally, check the display equation on chart box. This step will plot the quadratic curve as well as give the equation of the best-fit quadratic curve.
The attachment below shows the best-fit quadratic curve to the data-set and its corresponding equation.
A good approximation for the value of c from the equation is thus 3. This is simply the y-intercept of the curve. 3.21 is closer to 3.
 
        
             
        
        
        
Answer:
A. he sold the the car for 1350000
B. his cost price is 1500000
Step-by-step explanation:
A. 150000---> 10%
 x-----> 90%
 
cross multiplication: x=150000×90/10=1350000
B. 10%( price) +90%(price)
 1350000+150000=1500000
 
        
             
        
        
        
Answer:
(x-2)(3x²-4 )
Step-by-step explanation:
- First, you <u>multiply 3x and 8</u> to equal 24x²
- Then, you find the variables that equal -10x (-2x, and -12x)
- then <u>replace the -10x with the two variables you found</u> (3x²-2x-12x+8)
- Sperate the variable (3x²-2x) and (-12x+8)
- Find the <u>GCF</u> of both x(3x-2) and -4(3x-2) (the binomial in the parentheses MUST BE THE SAME
- Replace one of the parentheses with x-4
- Answer: (x-2) (3x-4)