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Fiesta28 [93]
3 years ago
15

Please, I just don't now waaaaa

Mathematics
1 answer:
Bond [772]3 years ago
6 0
Respuestas :

A) 100km/h

B) 49km/h

C) 2.8 km/h

D) 500 m/s
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A robotic machine fills containers with an acid solution at the rate of 50 + 5 t milliliters (mL) per second, where t is in seco
Alika [10]

Answer:

12,000

Step-by-step explanation:

The machine fills the containers at a rate of 50+5t milliliters (mL) per second.

Therefore, the rate of change of the number of containers, N is:

\dfrac{dN}{dt}=50+5t, 0\leq t\leq 60

dN=(50+5t)dt\\$Taking integrals of both sides\\\int dN=\int (50+5t)dt\\N(t)=50t+\frac{5t^2}{2}+C $(C a constant of integration)\\\\When t=0, , No containers are filled, therefore:$ N(t)=0\\0=50(0)+\frac{5(0)^2}{2}+C\\C=0\\$Therefore, N(t)=50t+2.5t^2

When t=60 seconds

N(60)=50(60)+2.5(60)^2\\N(60)=12000$ mL

Therefore, 12,000 milliliters of acid solution are put into a container in 60 seconds.

7 0
2 years ago
What is the value of expressions ? 18-2×(4+3)
Katarina [22]
BEDMAS

18-2*(4+3)
= 18-2*(7)
= 18-14
= 4
3 0
3 years ago
Read 2 more answers
I have a geometry test I’m gonna fail. If you know any of these answers please put the number of the question,than the answer. I
blsea [12.9K]

Answer:

Step-by-step explanation:

20) Angles 1 and 2 are supplementary angles( sum of angle 1 and angle 2 is 180 degrees)

21) Angles 1 and 2 are supplementary angles( sum of angle 1 and angle 2 is 180 degrees)

22) Angle TUW + Angle WUV =Angle TUV

Therefore

(7x-9) + (5x - 11) = (9x+1)

7x-9 + 5x - 11 = 9x+1

7x +5x-9x =1 + 11 + 9

3x = 21

x = 21/3= 7

23) GEF - 13 = 5DEG

and DEF = 149 degrees

GEF = 5DEG + 13

Sum of angles (GEF + DEG)=DEF

Therefore,

DEG + 5DEG - 13 = 149

6DEG = 149 + 13 = 162

DEG = 162/6 = 27

GEF = 5DEG = 27 × 5 =135

24) 7x - 1 + 6x -1 = 180(sum of angles in a straight line)

13x-2 = 180

13x = 180+2 = 182

x = 182/13 = 14

25) 5x + 4 + 8x - 7 = 180( sum of supplementary angles is 180)

13x = 180+7-4= 183

x = 183/13 = 14.08

3 0
2 years ago
What is the solution to this equation?<br> 2x + 3 = x – 4
gavmur [86]

Answer:

<h3>x = -7</h3>

Step-by-step explanation:

2x + 3 = x – 4

2x - x = -3 - 4

x = -7

5 0
2 years ago
Factorize:<br> 2ax-6ay+bx-3by
Elodia [21]

Answer:

2ax − 6ay + bx − 3

Step-by-step explanation:

The expression is not factorable with rational numbers

3 0
2 years ago
Read 2 more answers
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