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Ivan
3 years ago
12

Write an equation for the line that is perpendicular to the given line and that passes through the given point. y = 2x + 7; (0,

0)
Mathematics
1 answer:
Scilla [17]3 years ago
8 0

Answer:

y = 1/-2x + 0 or y = 1/-2x

Step-by-step explanation:

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Newton’s law of cooling states that the temperature of an object changes at a rate proportionalto the difference between the tem
Verizon [17]

Answer:

\frac{dT}{dt} = -0.05\;min^{-1}  (T-70\ºF)

Step-by-step explanation:

Hi!

Lets call:

T = temprature of the object

T₀ = temperature of surroundings

t = time

The rate of change of T is its derivative with respecto to time. If T > T₀, the object looses heat, so T decreases. Then, being k > 0:

\frac{dT}{dt} = -k(T-T_0) \\

In this case T₀ = 70ºF and k = 0.05/min. Then the differential equation is:

\frac{dT}{dt} = -0.05\;min^{-1}  (T-70\ºF)

3 0
3 years ago
Which equations represent functions?
never [62]

Answer:

2x + 3y = 10,  3y = 18  (in both cases, for each input x, there is exactly one output y.

Step-by-step explanation:

3y = 10 - 2x, or y = (1/3)(10 - 2x)   Yes, this is a function.

4x = 16 → x = 4        NOT a Function, because for x = 4 there are an infinite number of possible y -values

2x - 3 = 14 →  2x = 17  →  x = 17/2  Not a function.  See reason given above.

3y = 18 →  y = 6   Function

2x = 14.6   →  x = 7.3  Not a function.  See reason given above

4 0
3 years ago
Which Situation has a greater Rate of Change?<br> A: f(x) = 2(5)*<br> B: f() = 5(2)
Ivanshal [37]

Answer:

B

Step-by-step explanation:

Since 2 is the constant on A and 5 on B and 5's multiples are greater then 2's

7 0
3 years ago
Help me please. It means a lot
kakasveta [241]

Answer: Jonny makes $15 per hour working at Target. He gets a bonus at the end of the month for $85. This month, he made a total of $685. Write an equation to show how many hours he worked

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Simplify 3(2x-2)-2(x-2)<br><br> A.3x-3<br> B.3x-4<br> C.4x-2<br> D.4x-4
Black_prince [1.1K]
The answer is c 4x-2
5 0
3 years ago
Read 2 more answers
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