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Mamont248 [21]
3 years ago
14

Help please, I will give brain list

Mathematics
1 answer:
lara [203]3 years ago
5 0
A=WL
115=5L
Divide by 5
23=L
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A teacher assigns 10 questions for homework and wants to randomly pick 3 questions to be graded. He writes the numbers 1–10 on e
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Answer:

B:yes because the paper slips were equally size and the bag was shaken

Step-by-step explanation:

Taking the test

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3 years ago
Calculate the length of ac
svlad2 [7]

Answer:

  12.1 cm

Step-by-step explanation:

Using the law of sines, we can find angle C. Then from the sum of angles, we can find angle B. The law of sines again will tell us the length AC.

  sin(C)/c = sin(A)/a

  C = arcsin((c/a)sin(A)) = arcsin(8.2/13.5·sin(81°)) ≈ 36.86°

Then angle B is ...

  B = 180° -A -C = 180° -81° -36.86° = 62.14°

and side b is ...

  b/sin(B) = a/sin(A)

  b = a·sin(B)/sin(A) = 13.5·sin(62.14°)/sin(81°) ≈ 12.0835

The length of AC is about 12.1 cm.

_____

<em>Comment on the solution</em>

The problem can also be solved using the law of cosines. The equation is ...

  13.5² = 8.2² +b² -2·8.2·b·cos(81°)

This is a quadratic in b. Its solution can be found using the quadratic formula or by completing the square.

  b = 8.2·cos(81°) +√(13.5² -8.2² +(8.2·cos(81°))²)

  b = 8.2·cos(81°) +√(13.5² -(8.2·sin(81°))²) . . . . . simplified a bit

3 0
3 years ago
Read 2 more answers
Please answer correctly !!!!!!! Will mark brainliest answer !!!!!!!!
Allisa [31]

Answer:

A is the answer i believe

Step-by-step explanation:

3 0
3 years ago
There are 4 sticks, you pick up one stick. How many sticks are left
LenaWriter [7]
There are 3 sticks because:

4 sticks is the total and when you take away 1 stick, it is
 
4 - 1, which equals 3 sticks

So, the answer is 3 sticks are left.


Question: If u are in high school, why did you ask this question? You already know 4-1=3. Im guessing it was either a joke, or u were helping other people get points. If it is the second one, thx!!

6 0
3 years ago
Read 2 more answers
Josh practices gymnastics each day
Brums [2.3K]
What is the question?
4 0
3 years ago
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