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Margaret [11]
3 years ago
9

Which ones are proportional or non-proportional ?

Mathematics
1 answer:
castortr0y [4]3 years ago
4 0

Answer:

3. proportional

4. non propotional

Step-by-step explanation:

When the graph of the linear relationship contains the origin, the relationship is proportional

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Maurinko [17]

Answer:

40 divided by 4 is 10, the next question, it is 10 times the value, 2,143 and 164

Step-by-step explanation:

7 0
3 years ago
According to data from the U.S. Bureau of the Census, the approximate population y (in millions) of Los Angeles between 1950 and
dmitriy555 [2]

Answer:

The year in which the population of Los Angeles reached 2.6 million is 1965.

Step-by-step explanation:

We are given the approximate population y (in millions) of Los Angeles between 1950 and  2000 is given by:

y = 0.0000113x^3-0.000922x^2 +0.0538x + 1.97

y = Population(in millions)

We are supposed to find the year in which the population of Los Angeles reached 2.6 million.

Substitute y = 2.6

2.6 = 0.0000113x^3-0.000922x^2 +0.0538x + 1.97\\2.6-1.97=0.0000113x^3-0.000922x^2 +0.0538x\\0.63=0.0000113x^3-0.000922x^2 +0.0538x

The real solution is x=14.77≈15

We are given that 0 corresponds to 1950.

So, 15 corresponds to 1965

Hence the year in which the population of Los Angeles reached 2.6 million is 1965.

7 0
3 years ago
For this Prism to be a right prism, all the lateral faces must be rectangles. Is enough infromation given to prove the lateral f
Ilia_Sergeevich [38]

Answer:

yes i think that is definitely enough intonation

6 0
3 years ago
The left and right page numbers of an open book are two consecutive integers whose sum is 321
PIT_PIT [208]

Answer:

160,160

Step-by-step explanation:

let the first page be X

second one be x+1

x+x+1=321

2x=320

x= 320÷2=160

pages 160 161

6 0
3 years ago
Help!! <br> Show that 1 + tan2(x) = sec2(x)​
Papessa [141]

Answer:

tan2(x) + 1 = sin2(x)/cos2(x) + 1 = [sin2(x) + cos2(x)]/cos2(x) = 1/cos2(x) = (1/cos(x))2 = sec2(x). Thus tan2(x) + 1 = sec2(x).

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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