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Paha777 [63]
3 years ago
14

What is the answer to -x-2/-4=3x+6/2

Mathematics
1 answer:
denis23 [38]3 years ago
8 0

........................

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Express the following in standard form​
sleet_krkn [62]

Answer:

1. 24200

2. 0.0156

3. 0.00009092

Step-by-step explanation:

positive you move the decimal back wards and add the amount of zeros needed.

negative you move the decimal forwards and add zeros.

8 0
3 years ago
After sitting on a shelf for a while, a can of soda at room temperature (73 F) is placed inside a refrigerator and slowly cools.
Alona [7]

Answer:

Step-by-step explanation:

Use Newton's Law of Cooling here:

T(t)=T_s+(T_0-T_s)^{-kt

where T(t) is the temp of something after a certain amount of time, t, has gone by; Ts is the surrounding temp, and T0 is the initial temp. k is the constant of cooling. We need to first solve for this using the information given. Filling in what we know:

53=35+(73-35)^{-35k which can simplify a bit to

53=35+(38)^{-35k and 18=38^{-35k

Take the natural log of both sides:

ln(18)=ln(38)^{-35k

Taking the natural log allows us to pull that exponent down out front:

ln(18)=-35k*ln(38)

and now we can divide both sides by ln(38) to get

-35k = .794585 so

k = -.023

Now that have the value for k, we can go on to solve the rest of the problem which is asking us the temp of the soda after 70 minutes. Filling in using the k value and the new time of 70 minutes:

T(t)=35+(38)^{70(-.023) and

T(t)=35+(38)^{-1.61 and

T(t)=35+.0028612013 and

T(t) = 35 F, basically the temp of the fridge, which is not surprising!

5 0
3 years ago
The table shows three values of x and their corresponding values of f (x) for a linear function f, such that f (r) = 0 and f (0)
Rus_ich [418]

Using a linear function, it is found that the product rs is rs = 81.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

In this problem, when x changes by 68(from -64 to 68), y changes by -16(from 12 to -4), hence the slope is given by:

m = -16/64 = -0.25.

Hence:

y = -0.25x + b.

When x = 34, y = -4, hence this is used to find b.

-4 = -0.25(34) + b

b = 4.5.

Hence the function is:

y = -0.25x + 4.5.

f(r) = 0, hence:

-0.25x + 4.5 = 0

x = 4.5/0.25

x = 18

r = 18.

f (0) = s, hence s = 4.5.

Then the value of the product is:

rs = 18 x 4.5 = 81.

More can be learned about linear functions at brainly.com/question/24808124

#SPJ1

7 0
1 year ago
If I'm doing it wrong correct me please but can you finish the rest for me idk how to
nevsk [136]
Sorry Im in 6th but i still have no idea......

4 0
3 years ago
Can someone please help me solve this -4/5+(3/8)
Inessa05 [86]

Answer:

-\frac{17}{40\\}

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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