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Aleonysh [2.5K]
3 years ago
13

Which equation best represents the relationship?

Mathematics
1 answer:
Agata [3.3K]3 years ago
4 0

Answer: (C) C=\frac{5}{9}(F-32)

Explanation:

The difference between the degrees in Fahrenheit and the constant 32 corresponds to the expression in brackets (F-32).  The fraction 5/9 of that difference completes the expression: (5/9)(F-32) and gives the degrees Celsius.

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C

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Solve the simultaneous equation x^2-4y^2=9 and x+2y=1​
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Answer:

x=5,y=-2

Step-by-step explanation:

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Read 2 more answers
Explain how to write a quadratic equation given the following three points on the graph (5,31) (3,11) (0,11)
masha68 [24]

Given:

The graph of a quadratic function passes through the points (5,31) (3,11) (0,11).

To find:

The equation of the quadratic function.

Solution:

A quadratic function is defined as:

y=ax^2+bx+c            ...(i)

It is passes through the point (0,11). So, substitute x=0,y=11 in (i).

11=a(0)^2+b(0)+c

11=c

Putting c=11 in (i), we get

y=ax^2+bx+11               ...(ii)

The quadratic function passes through the point (5,31). So, substitute x=5,y=31 in (ii).

31=a(5)^2+b(5)+11

31-11=a(25)+5b

20=25a+5b

Divide both sides by 5.

4=5a+b                  ...(iii)

The quadratic function passes through the point (3,11). So, substitute x=3,y=11 in (ii).

11=a(3)^2+b(3)+11

11-11=a(9)+3b

0=9a+3b

Divide both sides by 3.

0=3a+b                 ...(iv)

Subtracting (iv) from (iii), we get

4-0=5a+b-3a-b

4=2a

\dfrac{4}{2}=a

2=a

Putting a=2 in (iv), we get

0=3(2)+b

0=6+b

-6=b

Putting a=2,b=-6 in (ii), we get

y=(2)x^2+(-6)x+11

y=2x^2-6x+11

Therefore, the required quadratic equation is y=2x^2-6x+11.

7 0
3 years ago
A remote-controlled car travels at a uniform speed of 3.5 m/s and reaches its destination in 5 minutes. How far did the remote-c
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Answer C or 1,050 is the correct answer
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Rectangle QRST has vertices Q(3,2) and S(7,8) What are two possible coordinates for vertices R and T
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Check the picture below.

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