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Lynna [10]
3 years ago
11

Direction: Transform each pair of equations into slope-interaction form (y=mx + b) and identify slope (m) and y-intercept (b). W

rite your answers on the space provided and show your solutions in separate sheet of paper. ​

Mathematics
2 answers:
Lunna [17]3 years ago
7 0

Answer:

will I write the answer in the copy and show you

blondinia [14]3 years ago
6 0

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The standard form equation ...

  ax +by = c

transforms to the slope-intercept equation ...

  y = -a/bx +c/b

__

For the purpose of answering this question, it is convenient to write the values of slope and y-intercept, then write the desired equation.

  slope = -a/b

  y-intercept = c/b

__

Note that the equations 2 and 4 are dependent, so describe the same line.

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Cobalt-56 has a decay constant of 8.77 × 10-3 (which is equivalent to a half life of 79 days). How many days will it take for a
sweet-ann [11.9K]
As I read this one, is just a decay exponential equation... so

A = P(1 + r)ᵗ   where "t" is days passed. . hmm in this case is decay, so negative rate  A = P(1 - r)ᵗ, and the decimal amount would be 0.00877 for the rate

62% of P, the original value, is just 0.62P, now... if we hmm take P as just 1, it could be any amount, but 62% of 1,000,000 is just 62% of 1 times 1,000,000

so, for the sake of comparing it with a percentage, 1 will do

\bf 0.62P=P(1-0.00877)^t\implies P=1\implies 0.62=(1-0.00877)^t
\\\\\\
ln(0.62)=ln[(1-0.00877)^t]\implies ln(0.62)=t\cdot  ln(1-0.00877)
\\\\\\
\cfrac{ln(0.62)}{ln(0.99123)}=t
7 0
3 years ago
8) x - 5y = -15<br> x - 2y = -12
Alex787 [66]

Answer:

If solving for X. (didn't know if you were solving for X or Y.

x=2y-12

x=5y-15

Step-by-step explanation:

x-2y=-12

+2y on both sides

x=2y-12

x-5y=-15

+5y on both sides

x=5y-15

6 0
3 years ago
Read 2 more answers
What is the difference of two numbers is 1 and their product is 56​
den301095 [7]

Answer:

8 and 7

Step-by-step explanation:

8 -7 = 1

8*7 = 56

7 0
3 years ago
PLEASE HELP! WILL MARK BRAINLIEST!
Kaylis [27]

Answer:

320 meters

Step-by-step explanation:

x² + 200x = 166400

It's a square, area should be side²

x² + 2(x)(100) = 166400

x² + 2(x)(100) + 100² = 166400 + 100²

(x + 100)² = 176400

x + 100 = 420

Since these are sides, we just consider the positive square root

x + 100 = 420

x = 320m

7 0
3 years ago
In History, you earned an exam score of X-85 where the exam average was μ-65 with a standard deviation of σ-5. In Biology, you e
topjm [15]

Answer: D. History

Step-by-step explanation:

To answer this question, we need to use the z-score formula written below:

\frac{x-pop. mean}{stan. devi.}

Now we'll just plug in the numbers and solve.

History:

\frac{85-65}{5}  = 4

Biology:

\frac{90-85}{10} =0.5

As we can see, history wields a higher z-score than biology, thus leaving us with option D. History

4 0
3 years ago
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