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Y_Kistochka [10]
3 years ago
12

Plz help me w this !!

Mathematics
1 answer:
larisa [96]3 years ago
7 0

Answer:

sum of angles in atriangle=180°

Step-by-step explanation:

w-45°+w-37°+w+19°=180°(sum of angles in a triangle)

3w=180°+45°+37°-19°

3w=243°

w=81°

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The 18 faculty members in a college math department range in age from 32 to 68. A stem plot follows: The first and third quartil
valentina_108 [34]

Answer:

Q_{1}=39, \:and\: Q_{3}=58

Step-by-step explanation:

1) This Stem and Leaf plot works like a Histogram. Completing the question, check below the Stem plot. Look the data out of the Stem plot and within (in the graph below)

32, 34 , 38 , 39 , 39 , 40 , 43 , 45 , 46 , 49 , 53 , 54 , 57 , 58 , 59 , 59 , 63 , 68

2) Notice how the first digit is on the Stem column (check below)

3) To find the first and Third Quartiles

Let's use the formulas to find the position, then the value. As it follows:

Q_3=\frac{3}{4}(n+1) \Rightarrow  Q_3=\frac{3}{4}(18+1) Q_3=14.25 \approx14th =58

Q_1=\frac{(n+1)}{4} \Rightarrow Q_1=4.75 th \approx Q_1 =5th =39

4 0
3 years ago
Chelsey puts twelve colored pieces of chocolate candy in a bag. Three pieces are green,
nydimaria [60]

Answer:

A) 3/110  

B) 3/110  

C) 3/110  

D) The order doesn’t matter as long as you are drawing out the same three colors.  The probability doesn’t change.

Step-by-step explanation:  

A) 3/12x3/11x4/10=36/1320= 9/330 = 3/110  

B) 3/12x4/11x3/10=36/1320= 9/330 = 3/110  

C) 4/12x3/11x3/10=36/1320 = 9/330 = 3/110  

D) The order doesn’t matter as long as you are drawing out the same three colors.  The probability doesn’t change.

I hope this helps! Have a good day (PLZ GIVE BRAINLIEST)

8 0
3 years ago
If U = {all positive integers) and A = {x|x EU and x is an odd positive integer}, which describes AC?
Galina-37 [17]

Answer:

last choice

Step-by-step explanation:

If we are looking at positive integers and we take out the odd ones, the only one's that are left are the even ones.

So last choice.   (Also I assume AC meant the complement of A)

7 0
3 years ago
Read 2 more answers
Ignore the blue dots they are wrong
Juliette [100K]

Answer:

1. true

2. false

3. false

4. true

3 0
3 years ago
Read 2 more answers
A package of 25 wristbands cost $5.25.At this rate,what is the cost of 1 wristband in dollars and cents?
Pani-rosa [81]
$5.25 divided by 25 = .21 cents each
6 0
3 years ago
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