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11111nata11111 [884]
3 years ago
7

The temperature has been going down at a constant rate. In 4 hours it went down 12 degrees. Which expression best shows the temp

erature change each hour?
Mathematics
1 answer:
Nookie1986 [14]3 years ago
4 0

Answer:

i think its 45 % but where are the expressions

Step-by-step explanation:


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In the diagram shown, m 1= 50 and m2 = (2x-20)
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Answer:

x = 35

Step-by-step explanation:

Since m1=m2 :

2x - 20 = 50 \\ 2x = 70 \\ x = 35

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A circle has a radius that is 4 centimeters long. if a central angle has a measure of 3 radiants, what is the length of the arc
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She completed 60 math problems. That was only 15% of what she had to do. How many math problems did she have to do
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400

Step-by-step explanation:

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2 years ago
Read 2 more answers
Which relation is a function? {(0, 2), (0, 4), (0, 6), (0, 8)} {(1, 2), (2, 3), (3, 4), (4, 5)} {(1, 2), (2, 1), (1, 3), (3, 1)}
o-na [289]

Answer:

{(1,2),(2,3),(3,4),(4,5)}

Step-by-step explanation:

A function is any relationship which takes one element of one set and assigns to it one and only one element of the second set.

From the above definition, the relation {(0,2),(0,4),(0,6),(0,8)} is not a function. 0 gives different values, if x=0, it gives 2 or 4 or 6 or 8. It is one-to-many relation

The relation {(1,2),(2,1),(1,3),(3,1)} is not a function, 1 is assigned to 2 or 3.

If x=1,it gives 2 or 3

The relation {(1,2),(3,4),(5,6),(1,8)} is not a function. It is a one - to - many relation. If x=1, it gives 2 or 8

The relation {(1,2),(2,3),(3,4),(4,5)} is a one - to- one relation and it is a function. One and only one value is assigned to only one value of the  second set. It is like the function f(x)= x+1

                    If x=1, f(x)=2

                    If x=2, f(x)=3

                    If x=3, f(x)=4

                    If x=4, f(x)=5

8 0
2 years ago
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