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Free_Kalibri [48]
3 years ago
12

Given: f(x) = 3x+4 and g(x) = -x^2+4x-5 find: -5f(x) - 4g(x)

Mathematics
1 answer:
sattari [20]3 years ago
3 0

Answer:

642

Step-by-step explanation:

bc it is trust me

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Evaluate the expression!
Fudgin [204]

Answer:

poop

Step-by-step explanation:

5 0
2 years ago
A body moves s metres in a time t seconds so that s = t3 – 3t2 + 8. Find:
Lady bird [3.3K]

Using derivatives, it is found that:

i) v(t) = 3t^2 - 6t

ii) 9 m/s.

iii) a(t) = 6t - 6

iv) 6 m/s².

v) 1 second.

<h3>What is the role of derivatives in the relation between acceleration, velocity and position?</h3>
  • The velocity is the derivative of the position.
  • The acceleration is the derivative of the velocity.

In this problem, the position is:

s(t) = t^3 - 3t^2 + 8

item i:

Velocity is the <u>derivative of the position</u>, hence:

v(t) = 3t^2 - 6t

Item ii:

v(3) = 3(3)^2 - 6(3) = 27 - 18 = 9

The speed is of 9 m/s.

Item iii:

Derivative of the velocity, hence:

a(t) = 6t - 6

Item iv:

a(2) = 6(2) - 6 = 6

The acceleration is of 6 m/s².

Item v:

t for which a(t) = 0, hence:

6t - 6 = 0

6t = 6

t = \frac{6}{6}

t = 1

Hence 1 second.

You can learn more about derivatives at brainly.com/question/14800626

7 0
2 years ago
How do I expand and evaluate (-1.1) to the 3rd power
Leto [7]
-1.331. -1.1 * -1.1 * -1.1
4 0
3 years ago
Please guys help me with this. I will give you brainliest. please ❤❤​
yawa3891 [41]

Answer:

. ........

Step-by-step explanation:

may i know were is the question??

lol

4 0
3 years ago
Read 2 more answers
Café Noir charges a 1% levy on the bill for trading on Sundays. If the final bill is $55.55, what was the original price, taking
svetoff [14.1K]
As I guess I think its 5
7 0
3 years ago
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