Answer:
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Answer:
the exact value is x =1/2 or x=0.5
your welcome!
Plug the numbers into the exponential growth formula:
Now work backwards to get the answer:
1)Divide 120150 by 60100 to get 1.998668885
2) Find the 11th root of ANS:
3) Minus 1 from your answer to give 0.064976629
4)Multiply your answer by 100 to give you the rate of x%, which is 6.5 to 1d.p
x=6.5 (1 d.p.)
Btw, this answer also works if you plug it back into the equation
Answer:
Step-by-step explanation:
Slope is the change in y values divided by the change in x values
m = (y₂ - y₁) / (x₂ - x₁)
1) (2 - 1) / (-17 - -3) = -1/14
2) (-10 - -4) / (-12 - -20) = -6/8 = -3/4
3) (-8 - -5) / (0 - -12) = -3/12 = -1/4
4) (14 - 10) / (-7 - 8) = -4/15
Answer
x= 3 and 7
Step-by-step explanation:
√4x-3 - √2x-5=2
√4x-3=2+√2x-5
squaring both sides
(√4x-3)²=(2+√2x-5)²
4x-3=2²+2*2*(√2x-5)+(√2x-5)²
4x-3=4+4(√2x-5)+2x-5
4x-2x-3+5-4=4(√2x-5)
2x-2=4(√2x-5)
again squaring both sides
(2x-2)²=(4(√2x-5))²
(2x)²-2*2x*2+2²=16(2x-5)
4x²-8x+4=32x-80
4x²-8x-32x+4+80=0
4x²-40x+84=0
4(x²-10x+21)=0
x²-10x+21=0
x²-(7+3)x+21=0
x²-7x-3x+21=0
x(x-7)-3(x-7)=0
(x-7)(x-3)=0
now
x-7=0
x=7
x-3=0
x=3
Step-by-step explanation: