Answer:
21,35
Step-by-step explanation:
Answer:
No.
Step-by-step explanation:
1. Since 19 is a prime number, it only has two factors: 1 and 19. Therefore, 3 is not a factor of 19 because no natural number multiplied by 3 equals 19.
Answer:
y = 128(4.926)^x
Step-by-step explanation:
Exponential function: y = ab^x
x = 0, y = 128
128 = ab^0
128 = a
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a = 128, y = 371,293, x = 5
371,293 = 128 x b^5
b^5 = ( 371,293 / 128 )
b = (fifth root) 5^√2900.7265625
b ≈ 4.926
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y = 128(4.926)^x
I hope this helps!
1. This function goes trough 3 points: ( 0,0),(8,0) and (4, -8) so we have to find f(0)=0, f(8)=0, f(4)= -8
f(0)= c=0✔️
f(8)=64 a +8b=0 divide by 4; 16a+2b=0 (1)
f(4)=16a+4b=-8 divide by 4; 4a+b= -2 (2)
From(2)
b=-4a-2
Substitute b in (1)
16 a+2( -4a-2)=0; 16a-8a-4=0; 8a=4
so a=1/2✔️
b=-2-2= -4✔️
The quadratic function is:
f(x)=(X^2)/2 -4x=0
2. This quadratic function goes trough points ( 2,12), (-4,0), (8,0)
The quadratic function is:
f(x)= (-x^2)/3. + 4x/3. +32/3
3. This quadratic function goes trough points ( 2, -6), (-1,0), (5,0)
The quadratic function is:
f(x)=(2x^2)/3. -8x/3. -10/3
4. This function goes trough points (0,2), (-2,0), (4,0)
The quadratic function is:
f(x)=(-x^2)/4. +x/2. +2