Answer: 15) 97
16) 16
17) 24
Step-by-step explanation:
15) (x-75) + (x-52)+ 293=360
x - 75 + x - 52 + 293 = 360
2x - 127 + 293 = 360
2x + 166 = 360
2x = 194 [Subtract 166 from both side]
x = 97 [Divide by 2 from both side]
16) (4x+15)+(5+6x)=180 The angle of a straight line is 180.
4x + 15 + 5 + 6x = 180
10x + 20 = 180
10x = 160 [Subtract 20 from both side]
x = 16 [Divide by 10 from both side]
17) (x+17)+(2x+1)= 90 These two angle combined equal to 90.
x + 17 + 2x + 1 = 90
3x + 18 = 90
3x = 72 [Subtract 18 from both side]
x = 24 [Divide by 3 from both side]
sorry i gave a bad answer
The correct answer is B and D
Explain
Now from those options , in other to get more accurately and interval
1. Use a larger confidence level
2. Use larger sample size
Glad this help you :D
So let's check 8 for example:
step 1: (x^4 + 19^3 + 108x^2 + 236x + 176) - x^3(x-8) =
27x^3 + 108x^2 + 236x +176
step 2: (27x^3 + 108x^2 + 236x + 176) - 27x^2(x-8) =
324x^2 + 236x + 176
step 3: (324x^2 + 236x + 176 ) - 324x(x-8) = 2812x + 176
step4: 2812x + 176 - 2812(x-8) = 2812*8 + 176
which is not zero.
actually you can see that all your answers A - D are incorrect, because the coefficients of the equation are all positive, so the if x is positive the value of the equation is also always positive.
This equation can have only negative roots (if it has any)
Answer:
D
Step-by-step explanation:
p +/- [z + sqrt(pq/n)]
0.65 + [1.645 × sqrt[0.65 × (1-0.65) ÷ 50]
0.65 +/- 0 1109613165
[0.5390386835 , 0.7609613165]