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dmitriy555 [2]
3 years ago
14

FAST PLEASE‼️‼️‼️ SHOW ALL WORK‼️‼️‼️ EASY‼️‼️‼️‼️

Mathematics
1 answer:
Burka [1]3 years ago
3 0

Answer:

Step-by-step explanation:

1. 2 + 3{(4 - 1)2}

let solve the bracket first

2+3{(3)2}

2+3(9)

2 + 27

=29

2. 3y - ( x +2)

where x = -5 and y = 3

3(3) - (-5 + 2)

9 + 5 - 2

i multiply the bracket with negative sign

9 + 3

= 12

3. 2(4x - 3) + 3x

distribute

8x - 6 + 3x

combine the like terms

8x + 3x -6

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some species of bacteria can copy their DNA and divide every 40 minutes. If a COLONY of 100 of these such bacteria begins with a
VikaD [51]

Answer:

The answer is 51,200 bacterium.

Step-by-step explanation: So you need to figure out the time between 12 and 6pm, then divide it by 40. 12-6 is 360 minutes, you divide by 40 and you get 9 divisions. Multiply the 100 x 2=200, 200 x 2 =400, and so on for 9 times.

You get a result of 51,200 bacterium.

8 0
3 years ago
Three tanks,A,B,C are used to store oil. Tank A contains 'n' litres of oil. Tank B contains (n+150) litres of oil. Tank C is emp
Yuliya22 [10]
500 divide by 300 is 150
6 0
3 years ago
Two forces with magnitudes of 150 and 75 pounds act on an object at angles of 30° and 150°, respectively. Find the direction and
kompoz [17]
Answer:

Magnitude: 121.35 pounds

Direction: 21.64°

Explanation:

1) Decompose each force into its x - y components.

2) Force 1, F1: 140 pounds at angle of 30°

x-component: F1,x

F1, x = F1 *cos(30°) = 140 pounds * cos(30°) = 121.24 pounds

y-component: F1,y

F1,y = F1 * sin(30°) = 140 pounds * sin(30°) = 70 pounds.

3) Force 2, F2: 75 poounds at 150°

x-component: F2,x

F2,x = F2 * cos(150°) = 75 pounds * cos(150°) = - 64.95 pounds

y-component: F2,y

F2,y = F2 * sin(150°) = 75 pounds * sin(150°) = 37.5 pounds

4) Resultant Force, Fr

x-component: Fr,x

Fr,x = F1,x + F2,x = 121.24 pounds - 64.95 pounds = 56.29 pounds

y-component: Fr,y

Fr,y = F1,y + F2,y = 70 pounds + 37.5 pounds = 107.5 pounds

4.1) magnitude

|Fr| = √ [ (56.29 pouns)^2 + (107.5 pounds)^2 ] = 121.35 pounds.

4.2) direction

tan(α) = Fr,y / Fr,3 = 56.29 pounds / 107.5 pouns = 0.5236

=> α = arctan(0.5236) = 27.64 °


5 0
3 years ago
Determine the values of a, b, and c for the quadratic equation: <br> 4x^2 – 8x = 3
TEA [102]
A=4, b=-8, c=-3 since you have to subtract 3 from both sides so that it would equal to 0
6 0
3 years ago
Is -3x+4y=8 parallel or perpendicular to -4x+3y=-6
meriva

Step-by-step explanation:

4y = 3x +8

y= 3/4x +2

3y = 4x -6

y = 4/3x -2

neither, perpendicular is negative reciprocal, and parallel m is the same. 3/4 =\ 4/3 and they are not negative reciprocals.

3 0
3 years ago
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