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
nirvana33 [79]
3 years ago
8

If u get an 81 which is a B in ur English class and then ur teacher gives u an assignment u then get a 88 ℅ she then puts it in

ur progress report.what is ur final grade?
Mathematics
2 answers:
pshichka [43]3 years ago
5 0
You get a B point average
Sergeu [11.5K]3 years ago
5 0

Answer:

you get a b average

Step-by-step explanation:

You might be interested in
What is the following quotient?
seropon [69]

Answer:  Choice B) \frac{5\sqrt{11}+5\sqrt{3}}{8}\\\\

==========================================

Work Shown:

\frac{5}{\sqrt{11}-\sqrt{3}}\\\\\\\frac{5(\sqrt{11}+\sqrt{3})}{(\sqrt{11}-\sqrt{3})(\sqrt{11}+\sqrt{3})}\\\\\\\frac{5\sqrt{11}+5\sqrt{3}}{(\sqrt{11})^2-(\sqrt{3})^2}\\\\\\\frac{5\sqrt{11}+5\sqrt{3}}{11-3}\\\\\\\frac{5\sqrt{11}+5\sqrt{3}}{8}\\\\\\

This shows why choice B is the answer.

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

Explanation:

  • In the second step, I multiplied top and bottom by (\sqrt{11}+\sqrt{3})
  • This is so we can apply the difference of squares rule in step 3. The difference of squares rule is (x-y)(x+y) = x^2-y^2.
  • In step 4, the square roots cancel out with the squaring operation. The two operations are inverses of one another, which is why they cancel.

So in general, if the denominator is \sqrt{a}-\sqrt{b} and you want to rationalize the denominator, then you should multiply top and bottom by \sqrt{a}+\sqrt{b}. The same applies in reverse as well.

This leads to the denominator becoming (\sqrt{a}-\sqrt{b})(\sqrt{a}+\sqrt{b}) = (\sqrt{a})^2-(\sqrt{b})^2 = a-b

Keep in mind that a \ge 0 and b \ge 0

4 0
2 years ago
a carpenter needs to make 60 dowels. Each dowel must be 6 inches long. the wood from which the carpenter will cut the dowels com
forsale [732]
8 pieces of wood. It takes 6 inches to make 1 dowel, so with 4 feet (48 inches) you could make 8 dowels per board. You would need 7.5 boards to make 60, but you cant buy half a board, so the answer is 8


4 0
2 years ago
Read 2 more answers
Find the sample standard deviation with the data 0.62, 1.05, 0.58, 1.17, 1.04, 1.37, 1.32, 0.67, 1.25 1.38, 0.86
sukhopar [10]

standard \: deviation \:  = \sqrt{ \frac{12.5485}{11} }  - (1.028) {}^{2}  \\  = 0.28981
4 0
3 years ago
What is the area of a circle with a radius of 8in
Kaylis [27]

Answer:

200.96in squared

Step-by-step explanation:

are of a circle is pieR^2. Pie is 3.14, so 3.14 x 8^2 which is 200.96 Hope this helps plz mark brainliest

5 0
3 years ago
Read 2 more answers
Witch set of numbers could represent the side lengths of a right triangle
EastWind [94]
C. 6,9,12 I hope this helps! :)
8 0
3 years ago
Other questions:
  • 1789 divided by 3 times 8 times 10.88
    12·1 answer
  • What expression is equivalent to 8 - 3
    7·1 answer
  • Anyone know how to solve this?
    6·1 answer
  • The graph shows the amount of money Miguel earns after working x hours.
    8·1 answer
  • 6. Which pair of points has a positive slope?
    6·1 answer
  • What is 83 tenths in lowest term
    8·1 answer
  • The product of two positive consecutive integers is 132. find the integers.
    5·1 answer
  • Determine the intercepts of the line.
    5·1 answer
  • For this test remember all questions have two answers. Please put the smaller answer in the first blank. Solve t2=144 .
    9·1 answer
  • Evaluate the expression for m = 5.<br><br>Please help meee due soon!!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!