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elixir [45]
3 years ago
8

Part a:Create a table to show how the number of days is related to the number of hours.Show at least 5 days.

Mathematics
2 answers:
Usimov [2.4K]3 years ago
6 0
On part a you just create a table so you go 1 day is 24 hrs and two days is 48 hrs and then for part be the answer is yes and in part c it would be k=1/24x
sveticcg [70]3 years ago
5 0

Answer:

A.  Table is mentioned below.

B. Yes, it is a proportional relation.

C. y=\frac{1}{24}x

Step-by-step explanation:

Part C : We know that,

1 day = 24 hours,

\implies 1\text{ hour}=\frac{1}{24}\text{ day}

Thus, the number of days in x hours( say y ) = hours × number of days in each hour

\implies y = \frac{1}{24}x

Which is an equation of line.

Part A :

Hours       1              2           3           4          5      

Days       1/24       1/12        1/8         1/6       5/24

Part B :

∵ a line passes through the origin always shows a proportional relation,

Since, for (0, 0),

0=\frac{1}{24}(0) ( True )

i.e. there is a proportional relation between number of days and number of hours.

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Which of the following could be the equation for a parabola that opens down with the vertex (-11,-28)?
Mekhanik [1.2K]

Answer:y=-5(x+11)^2 -28

Step-by-step explanation: Okay think about what you know about translations and transformations of parent functions. In this case, the parent function is x2. So what now?

First, the problem states that the parabola opens DOWN. This means that you should look for a negative leading coefficient. This narrows your options down to C or D. (-5 is the leading coefficient)

Now starting with the x2, the vertex would be at (0,0), but in this problem it is at (-11,-28). That means it was TRANSLATED 11 spots in the negative x-direction and 28 spots in the negative y-direction.

Look at your options, when a number is being added directly unto the x variable, such as in answer C, it moves in the negative x-direction. This tells you that C has to be your answer.

I hope that helps!

8 0
3 years ago
One of the legs of a right triangle measures 9cm and the other leg measures 8cm. Find the measure of the hypotenuse. If necessar
Aleks04 [339]

Answer:

12.0 cm

Step-by-step explanation:

Use Pythagorean theorem a^2+b^2 = c^2

a = 9

b = 8

hypotenuse = c = \sqrt{8^2+9^2}

c = 12.04 cm

4 0
2 years ago
Please hurry guys, I need this explained and answered
kherson [118]
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4 0
2 years ago
Correct 7 to 2 decimal places
Zielflug [23.3K]

Answer:

7 to 2 decimal places is:

7 = 2.64

5 0
3 years ago
Read 2 more answers
Which value of a in the exponential function below would cause the function to shrink? f(x) = a(three-halves) Superscript x Four
Natalka [10]

Answer:

Four-fifths

Step-by-step explanation:

As we know that

By multiplying the function by a constant, we may expand or shrink the function in the y-direction.

Now we have

y=a(b^{x})

if a> 1  > the function would enlarge

if 0< a < 1 > the function would shrinks

Now

For case A

a = \frac{4}{5}

0 < (\frac{4}{5} )< 1 ....... > the function would shrinks

For case B

a = \frac{5}{4}

(\frac{5}{4} )>1 .......> the function would enlarge

For case C

a = \frac{3}{2}

(\frac{3}{2} )>1 .........> the function would enlarge

For case D

a = \frac{7}{4}

(\frac{7}{4} )>1 .........> the function would enlarge

Therefore the second option is correct

5 0
3 years ago
Read 2 more answers
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