Answer:
-14
Step-by-step explanation:
f(x) = 4x² + 2x
Take the first derivative:
f'(x) = 8x + 2
Evaluate at x = -2:
f'(-2) = 8(-2) + 2
f'(-2) = -14
The tangent slope is -14.
Answer:
86
Step-by-step explanation:
t = ten's digit u= one's digit
t + u = 14 t = 2u - 4
In the first equation substitute for t 2u - 4 that we find in the second equation above.
t + u = 14
2u - 4 + u = 14 Combine the u's
3u - 4 = 14 Now add 14 to both sides
3u = 18 Divide both sides by 3
u = 6. We found the unit's digit, now we will find the ten's unit by plugging in 6 for u in the first equation above.
t + u = 14
t + 6 = 14 Subtract 6 from both sides
t = 8
So, your answer is 86.
[2] \frac{x}{y} [/3]*[1] \frac{x}{y} [/3]=[2] \frac{x}{y} [/9]
2*1=2
3*3=9
5 and 1 are the common factor between them
Ab + bc = ac
3x + 4 + x + 3 = 5x + 2
4x + 7 = 5x + 2
7 - 2 = 5x - 4x
5 = x <==
ab = 3x + 3....3(5) + 4 ....15 + 4 = 19
bc = x + 3 ...5 + 3 = 8
ac = 5x + 2....5(5) + 2.....25 + 2 = 27
