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Anestetic [448]
3 years ago
6

Une particule se déplace le long de la courbe y = 2x 2 – x + 3 et son abscisse est donnée par x = t 3 – 2t. Trouver la vitesse d

e la particule au temps t = 3.
Mathematics
1 answer:
Mars2501 [29]3 years ago
7 0
2*2=4 first you multiply  
4-1=3 then subtract  
3+3=6 now you add and that is your answer =6
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When c=_6 and x=2 x-8c
DiKsa [7]

Answer:-46

Step-by-step explanation:

2-8(6)

=-46

5 0
3 years ago
Fidn the points of intersection
Sedbober [7]

EQ. 1: x + y = 8

EQ. 2: 4x-y = 7

Rewrite EQ. 1 as EQ. 3: x = 8-y

Replace x in EQ.2 with EQ. 3:

4(8-y) - y = 7

Use the distributive property:

32 - 4y - y = 7

Combine like terms:

32 - 5y = 7

Subtract 32 from each side:

-5y = -25

Divide both sides by -5

y = -25 / -5

y = 5


Now replace y with 5 in EQ. 3 to solve for X:


x = 8-5

x = 3


The point of intersection is X = 3, Y = 5, which is written as (3,5)

8 0
3 years ago
Identify the amount, base, and percent in the problem: What is 60% of 485?
IrinaK [193]

Hey there! I'm happy to help!

The percent in the problem is 60% (as it has a percent time).

The base is the number we start with, so it is 485.

The amount is the percent of the base. As a decimal, 60% is 0.6. So, we just multiply this by 485.

0.6×485=291

Therefore, the amount is 291.

AMOUNT: 291

BASE: 485

PERCENT: 60%

Have a wonderful day! :D

3 0
3 years ago
Dan earns a commission of 15% on his sales. Last month his sales were: $550.23, $793.23,
elixir [45]

9514 1404 393

Answer:

  $533.86

Step-by-step explanation:

The sum of the sales amounts is $3,559.07. Dan's commission is ...

  0.15 × $3,559.07 = $533.86

5 0
3 years ago
F(x) = 3x+2<br><br> What is f(5)?
Ksju [112]

F(5)= 3.(5)+2=15+2=17

Another example: F(0)=3.(0)+2=0+2=2

You just replace the value in the two sides.

4 0
2 years ago
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