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Reika [66]
3 years ago
8

Write a equation form for this sentence, of the 37 choir members, 21 were girls, let b represent the boys in the chior

Mathematics
2 answers:
Elena-2011 [213]3 years ago
8 0
Write a equation form for this sentence, of the 37 choir members, 21 were girls, let b represent the boys in the choir

37=b+21 or 37=21+b
AnnyKZ [126]3 years ago
6 0
37= 21+b
(total=girls + boys)
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This venn diagram shows sports played by 10 students what is p
Rainbow [258]

P(A | B) is 2/10 = 0.2.

<h3>What is P(A | B) ?</h3>

P(A | B) means the probability that a students pays both basketball and football. It is the intersection of both circles on the venn diagram.

P(A | B) = number of students that play both games / total number of students

2/10 = 0.2

Please find attached the complete question. To learn more about venn diagrams, please check: brainly.com/question/13192210

#SPJ1

8 0
2 years ago
HELP What is the area of this figure?
Mademuasel [1]
The correct answer is:  [B]:  "40 yd² " .
_____________________________________________________
First, find the area of the triangle:

The formula of the area of a triangle, "A":

A = (1/2) * b * h ; 

in which:  " A = area (in units 'squared') ;  in our case, " yd² " ; 

                 " b = base length" = 6 yd.  

                 " h = perpendicular height" = "(4 yd + 4 yd)" = 8 yd.
___________________________________________________
→  A = (1/2) * b * h = (1/2) * (6 yd) * (8 yd) = (1/2) * (6) * (8) * (yd²) ; 
                                                                 
                                                                   =  " 24 yd² " .
___________________________________________________
Now, find the area, "A", of the square:

The formula for the area, "A" of a square:

   A = s² ;

in which:  "A = area (in "units squared") ; in our case, " yd² " ;
                 
                 "s = side length (since a 'square' has all FOUR (4) equal side lengths);

 A = s²  = (4 yd)² = 4² * yd² =  "16 yd² "
_________________________________________________
Now, we add the areas of BOTH the triangle AND the square:
_________________________________________________
        →  " 24 yd²  +  16 yd² " ; 

to get:  " 40 yd² " ;  which is:  Answer choice:  [B]:  " 40 yd² " .
_________________________________________________
4 0
4 years ago
Cho tam giác ABC vuông tại A đường cao AH có BH=9 cm, CH= 10 cm. a tính AH. b tính ^B ,^ C
ohaa [14]

Answer:

Could you please put this in english?

Step-by-step explanation:

So sorry I can't help

4 0
3 years ago
10 have volunteered to help with the preparations for a party. How many ways can Susan assign someone to buy​ beverages, someone
Lesechka [4]

Answer:

The answer is 720 ways.

Step-by-step explanation:

Total friends who volunteered = 10

Total number of jobs that have to be done = 3

Here order matters, so it is a permutation question.

We can use the formula nPr.

= \frac{10!}{7!}

= 720 ways.

The second way to solve this is:

Susan can choose the first person to do a job in 10 ways

Then the second job can be done in 9 ways and the third in 8 ways.

Total becomes = 10\times9\times8=720 ways

5 0
4 years ago
Find the height of a square pyramid that has a volume of 8 cubic feet and a base length of 2 feet.
WARRIOR [948]

Step-by-step explanation:

Volume of square pyramid

= (Base length)² * (Height/3).

Therefore we have 8 = 2² * (h/3).

=> 8 = 4 * (h/3), h/3 = 2, h = 6.

Hence the height is 6 feet. (1)

6 0
3 years ago
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