1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
abruzzese [7]
3 years ago
11

Find the widest range of scores that you can get on a final exam in order to receive a grade of B for the class. Using interval

notation
Need answer asap!!

Mathematics
2 answers:
Drupady [299]3 years ago
4 0

Answer:

Correct choice is B

Step-by-step explanation:

Let x% be your final test score, then the average of all test scores is

\dfrac{96+77+74+x}{4}.

Since you must have an average between 80% and 89%, then

80\le \dfrac{96+77+74+x}{4}\le 89,\\ \\320\le 247+x\le 356,\\ \\73\le x\le 109.

X is measured in percent, then the greatest value of x can be 100%. You get that

73\%\le x\le 100%.

stellarik [79]3 years ago
3 0

Answer:

[73, 100}

Step-by-step explanation:

96 + 77 + 74 + 65 = 312

312/4 = 78

96 + 77 + 74 + 70= 317

317/4 = 79.25

96 + 77 + 74 + 73 = 320

320/4 = 80

You might be interested in
You pay $1.56 for 4 pounds of bananas. Write and solve an equation to find out how much it costs for 1 pound of bananas.
Tom [10]

Answer:

1.56 / 4 = 0.39

1 Pound of bananas cost $0.39

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
In a sphere, if the radius is tripled, how much more volume do you have?
lilavasa [31]
If the radius is tripped, the volume will increase by 3^3 = 27 times.

Answer: 27 times
3 0
3 years ago
How do you solve 8x-7= 3x 9?
gtnhenbr [62]
8x - 7 = 3x + 9
8x - 3x = 9 + 7
5x = 16
x = 16/5 = 3 1/5
3 0
2 years ago
What are the amplitude, period, and phase shift of the given function? f(t)=-2/3 cos (3t-3pi)
dybincka [34]

Answer:

amplitude; \frac{2}{3}

Phase shift; \pi units right

Period;\frac{2\pi}{3}

Step-by-step explanation:

The given function is

y=-\frac{2}{3}\cos(3t-3\pi)

This function is of the form;

y=A\sin (Bt+C)

The period is given by:

|A|=|-\frac{2}{3}|= \frac{2}{3}

The period is given by:

T=\frac{2\pi}{|B|}= \frac{2\pi}{|3|}=\frac{2\pi}{3}

The phase shift is given by;

\frac{C}{B}=\frac{-\3pi}{3}=- \pi or \pi units right.

4 0
3 years ago
Which are true?
Tanzania [10]

Answers:

  1. True. All states have a different approach to collecting revenue, which is money they spend on government programs. Most states have income taxes, but a state like Florida doesn't have income taxes. Instead they rely on sales taxes and property taxes. The general rule is that if one tax is missing, then chances are the other tax rates are higher to make up the lack of funds (that the missing taxes would provide).
  2. False. States vary in sales tax rates. For instance, Alabama's sales tax is 4% while Arkansas is 6.5%
  3. True. You can do an online search of "states without sales tax" to find sources to help confirm this. Keep in mind that while the state overall does not impose sales tax, this does not mean the city and/or county governments won't impose sales tax. Unfortunately it's hard to escape taxes and sales tax is just one of those inevitable things.
  4. True. As mentioned in problem 3, local governments (city and/or county) tend to impose taxes of their own on top of state sales taxes. Sales taxes fund state programs while local taxes fund local programs. Though some local government programs will use state or federal dollars.
6 0
2 years ago
Other questions:
  • Trinity created a game that uses a card number 1 to 8 and a six sided cube numbered 1 to 6. Each player chooses one card and roa
    7·1 answer
  • What does the slope of the line represent?​
    14·1 answer
  • Which of these numbers is the same as 4-2?<br> A. -8<br> B. 1<br> C. lo<br> D. 16
    15·1 answer
  • Naoki's bicycle has a mass of 10 kg. If Naoki sits on her bicycle and starts pedaling with a force of 105.6 N, causing an accele
    10·1 answer
  • Let the function f(x) have the form f(x) = Acos(x - C). To produce a graph that
    6·1 answer
  • At 5 a.m., the temperature at an airport was −9.4°F . Six hours later, the temperature was 2.8°F .
    12·1 answer
  • Zoey walked from school to the grocery store, and then to her house. The diagram shows the top view of the three locations and s
    12·1 answer
  • Can someone please help me with this math question?
    15·1 answer
  • In a survey of 3,000 people who owned a certain type of​ car, 1,050 said they would buy that type of car again. What percent of
    10·2 answers
  • Determine if you UTV and RQS are similar if so right the similarities statement
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!