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wel
2 years ago
15

Well yes... math I am very sad because this is confusing.so....yeah..help.. please

Mathematics
2 answers:
NISA [10]2 years ago
6 0
A.) x = # of bottles
Fill It Up, Inc.: y = 4x
Bottles by Bob, Co.: y = 3x + 25

b.) x is the independent variable, and y is the dependent variable because it depends on the value of x. See picture below for graphs.

c.) Not sure if the class size is given, but if there are less than 25 students then Fill It Up, Inc. would be cheapest. However, if there are more than 25 students then Bottles by Bob, Co. would be cheapest. This is shown in the graph. The class size influenced the decision.

d.) The intersection in the graphs at point (25, 100) shows that for 25 bottles the price will be the same ($100).
Aleks [24]2 years ago
4 0
Can you please be more specific
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AYUDA CON ESTO!!! ALGUIEN PORFAVOR
Gre4nikov [31]

Answer:

Problem 1)  frequency:  160 heartbeats per minute, period= 0.00625 minutes (or 0.375 seconds)

Problem 2) Runner B has the smallest period

Problem 3) The sound propagates faster via a solid than via air, then the sound of the train will arrive faster via the rails.

Step-by-step explanation:

The frequency of the football player is 160 heartbeats per minute.

The period is (using the equation you showed above):

Period = \frac{1}{frequency} = \frac{1}{160} \,minutes= 0.00625\,\,minutes = 0.375\,\,seconds

second problem:

Runner A does 200 loops in 60 minutes so his frequency is:

\frac{200}{60} = \frac{10}{3} \approx  3.33   loops per minute

then the period is: 0.3 minutes (does one loop in 0.3 minutes)

the other runner does 200 loops in 65 minutes, so his frequency is:

\frac{200}{65} = \frac{40}{13} \approx  3.08   loops per minute

then the period is:

\frac{13}{40} =0.325\,\,\,minutes

Therefore runner B has the smaller period

8 0
3 years ago
Two groups of students were asked how many pets they had. The table below shows the numbers for each group:
Charra [1.4K]
Whats the question tho
6 0
3 years ago
PLS HELP! ASAP!
Oduvanchick [21]

Answer:

i only know (d)

was -i s now

1.8 m - 0.6 m

1.2 m - 0.4 m

2.4 m - 0.8 m

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
An educator wants to determine whether a new curriculum significantly improves standardized test scores for fourth grade student
vesna_86 [32]

Answer:

Independent Sampling

Step-by-step explanation:

There are two scenarios for independent sampling .

Testing the mean we get the differences between samples from each population. When both samples are randomly  inferences about the populations. can get.

Independent sampling are sample that are selected randomly. Observation does not depend upon value.Many analysis assume that sample are independent.

In this statement 90 dash are divides into two groups Group 1 and Group 2 . Both are standardized that mean both are randomly selected. Means are observed. Observation doesn't depend upon value.  So this style of sampling is independent Sample.

5 0
3 years ago
The function g is given in three equivalent forms. Which form most quickly reveals the zeros (or "roots") of the function? Choos
koban [17]

Answer:

C. g(x) = -2 \cdot (x + 1)\cdot (x+7)

Step-by-step explanation:

The polynomial form that reveals most quickly the zeroes is the form of a product of binomials. That is:

g(x) = \Pi\limits_{i=1}^{n}  (x-r_{i})

Where \Pi is the product function and r_{i} is the i-th root of the polynomial.

Hence, g(x) = -2 \cdot (x + 1)\cdot (x+7) resembles a form that is close to the form described above. The right option is C.

8 0
3 years ago
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