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Elis [28]
3 years ago
5

Assessment Practice

Mathematics
2 answers:
frosja888 [35]3 years ago
7 0

Answer:

D

Step-by-step explanation:

seraphim [82]3 years ago
3 0

Answer:

45

Step-by-step explanation:

45 don't belong

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A cell phone plan costs $39 a month. The plan includes 2 gigabytes (GB) of free data and
DerKrebs [107]

a) C(0.5) = 39,  C(2)  =  39,  C(4)  =  69

b) Answers in part (a) represents the values of C at x = x₀

c) C(x) is continuous at x = 2

C (x) = 39 for 0 ⩽ x ⩽ 2

Since x = 0.5 is in the range 0 ⩽ x ⩽ 2:

C(0.5)  =  39

Since x = 2 is in the range 0 ⩽ x ⩽ 2

C(2)  =  39

Since x = 4 is in the range x  >  2

C(4) = 39 + 15(x - 2)

C(4) = 39  +  15 (4 - 2)

C(4)  =  39  +  15(2)

C(4)  =  39  +  30

C(4)  =  69

b) The answers in part A represents C(x). That is, the values of C at x = x₀

c) Is C(x) continuous at x = 2

C(2)   =  39

\lim_{x \to 2} C(x) = 39

Since \lim_{x \to 2} C(x) = C(2), the function C(x) is continuous at x = 2

Learn more here: brainly.com/question/20710468

4 0
2 years ago
9-5(4-2)<br> --------------<br> 3+5
nirvana33 [79]

Answer:

-1/8

Step-by-step explanation:

9-5(4-2)

--------------

3+5

First do the parentheses

9-5(2)

--------------

3+5

Then calculate the top and bottom of the fraction

We need to multiply and divide first

9-10

--------------

3+5

-1

--------------

8

5 0
3 years ago
Please help!! (Number 73)
Rasek [7]
So hmm notice the picture below

one is 7x5x1.75 the volume of a rectangular prism is V = length * width * height

so 7*5*1.75 gives us 61.25 ft³

the second one, is larger by some width and length we dunno, but we know that it required that 61.25 plus an extra 17.5 to fill it up, so its volume is 61.25 + 17.5 or 78.75

the height is the same... so \bf V=l\cdot w\cdot h\qquad &#10;\begin{cases}&#10;l=length\\&#10;w=width\\&#10;h=height\\ --------\\&#10;h=1.75\\&#10;V=78.75&#10;\end{cases}\implies 78.75=lw\cdot 1.75&#10;\\\\\\&#10;\cfrac{78.75}{1.75}=lw\implies 45=lw

so.. if you factor 45, to two factors, one will be the length, the other the width

3 0
2 years ago
A boat took 3 hours to go downstream with a 6 mile per hour current. the return trip back upstream took
Savatey [412]

Answer:

14

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Jenny owns a salon. She had 150 customers at the end of the third quarter, 151
Alika [10]

Answer:

The answer is 96%

Step-by-step solution:

I just took the test and the way my test is set up, it doesn't show you the answer, you just have the ability to do it again and again with no limit. I saw that most people got all the other questions right but the salon one. And I did too before but after doing it over and over again I finally understood. So the question is Customer Retention = (# Customers at End of time Period less New Customers)/Customers at beginning of time Period

Multiply the result by 100 to convert to percentage

So pretty much what the question is saying is to subtract the numbers at End of time Period by the new costumers then divide that by the costumers at beginning of time Period then multiply the solution by 100 for the percentage. Most people probably dismissed the word less but it's indeed important and it would've been simpler if they just put a subtract sign but hey we got the answer anyway.

6 0
2 years ago
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