What is an equivelent expression for 4(x+5)+2(x+3)

Mathematics

2 answers:

Alexxx [7]3 years ago

8 0

4(x+5)+2(x+3)
4x+20+2x+6
6x+26

zloy xaker [14]3 years ago

7 0

4x+20+2x+6 is what you get when you distribute, just group the similar ones together and get 6x+26, that's the answer 6x+26

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What is the solution to the equation 1/4x = 5?

puteri [66]

The solution to your equation is:

Solve:
1/4x = 5

Step 1: Multiply both sides by 4
4 * (1/4x) = (4) * (5)

x = 20

Thus your answer is:

Letter Choice (C), x = 20

Hope that helps!!!

5 0

3 years ago

A second particle, Q, also moves along the x-axis so that its velocity for 0 £ £t 4 is given by Q t cos 0.063 ( ) t 2 v t( ) = 4

Vladimir79 [104]

Answer:

The time interval when $V_Q(t) \geq 60$ is at $1.866 \leq t \leq 3.519$

The distance is 106.109 m

Step-by-step explanation:

The velocity of the second particle Q moving along the x-axis is :

$V_{Q}(t)=45\sqrt{t} cos(0.063 \ t^2)$

So ; the objective here is to find the time interval and the distance traveled by particle Q during the time interval.

We are also to that :

$V_Q(t) \geq 60$ between $0 \leq t \leq 4$

The schematic free body graphical representation of the above illustration was attached in the file below and the point when $V_Q(t) \geq 60$ is at 4 is obtained in the parabolic curve.

So, $V_Q(t) \geq 60$ is at $1.866 \leq t \leq 3.519$

Taking the integral of the time interval in order to determine the distance; we have:

distance = $\int\limits^{3.519}_{1.866} {V_Q(t)} \, dt$