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Ugo [173]
3 years ago
5

Evaluate the expression.

Mathematics
1 answer:
zysi [14]3 years ago
5 0

Answer:

work is shown and pictured

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Math algebra 2 show you’re work plz
LenKa [72]

9514 1404 393

Answer:

  (t, u, w) = (1, -2, -2)

Step-by-step explanation:

A graphing calculator makes short work of this, giving the solution as ...

  (t, u, w) = (1, -2, -2)

__

There are many ways to solve this "by hand." Here's one of them.

Add the first and third equations. Their sum is ...

  -3t +4w = -11 . . . . . [eq4]

Add this to twice the second equation. That sum is ...

  (-3t +4w) +2(-4t -2w) = (-11) +2(0)

  -11t = -11

  t = 1

Substituting this into the second equation gives ...

  -4(1) -2w = 0

  w +2 = 0 . . . . divide by -2

  w = -2 . . . . add -2

Substituting for t in the third equation lets us find u.

  2(1) -2u = 6

  -1 +u = -3 . . . . . divide by -2

  u = -2 . . . . add 1

The solution is (t, u, w) = (1, -2, -2).

5 0
3 years ago
Put in order from least to greatest 12, 8, -9, -12, 10, 16 *​
Nina [5.8K]

Answer:

-12,-9,8,10,12,16

Step-by-step explanation:

3 0
3 years ago
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Graph y=x−2, could someone help?
Eduardwww [97]
Like the other answer said. desmos all the way

4 0
3 years ago
Read 2 more answers
In a town election azeem got 42 percentage of the votes cast and hamza got the remaining votes.If the total number of votes cast
Misha Larkins [42]

Answer:

23200

Step-by-step explanation:

42 percent of 40000 is 16800

40000-16800=23200

please give me brainliest!!!<3

8 0
3 years ago
Read 2 more answers
A bacterial culture starts with 400 bacteria and grows at a rate proportional to its size. After 2 hours there will be 800 bacte
kotykmax [81]

Answer:

  1. P(t) = 400×2^(t/2)
  2. 6400
  3. 5.0

Step-by-step explanation:

The wording "a rate proportional to its size" is an indication that growth (or decay) is exponential.

1) For many problems involving exponential growth, I like to use the numbers given in the problem statement as follows.

  population = (initial population) × (growth factor)^(t/(growth period))

where the "growth period" is the period of time in which the population is multiplied by the "growth factor".

Here, we're given ...

  (initial population) = 400

  (growth factor) = 800/400 = 2

  (growth period) = 2 . . . . hours

So, our population function can be written as ...

  P(t) = 400×2^(t/2)

__

2) Putting t=8 into the formula, we get ...

  P(8) = 400×2^(8/2) = 400×16 = 6400

After 8 hours, the population will be 6400.

__

3) Fill in the given number and solve for t.

  2270 = 400×2^(t/2)

  2270/400 = 2^(t/2)

Taking logs, we have ...

  log(227/40) = (t/2)log(2)

  t = 2×log(227/40)/log(2) ≈ 5.009

After 5.0 hours, the population will reach 2270.

7 0
3 years ago
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