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Zolol [24]
3 years ago
12

HELPPP I NEED HELP DUE VERY SOONNN

Mathematics
1 answer:
Dovator [93]3 years ago
8 0

Answer:

x .  1 .  3  .  5  .  7  .  9

y . 6 . 18 . 30 . 42 . 54

Step-by-step explanation:

X-values are the odd numbers

Y-values are the corresponding x-values multiplied by 6

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In a competition, a school awarded medals in different categiories.40 medals in sport 25 medals in danceand 212 medals in music,
aleksley [76]

Answer:

210

Step-by-step explanation:

Given:

Medals in sports = 40

Medals in dance = 25

Medals in music = 212

Total students that received medals = 55

Total students that received medals in all three categories = 6

Required:

How many students get medals in exactly two of these categories?

Take the following:

A = set of persons who got medals in sports.

B = set of persons who got medals in dance

C = set of persons who got medals in music.

Therefore,

n(A) = 40

n(B) = 25

n(C) = 212

n(A∪B∪C)= 55

n(A∩B∩C)= 6

To find how many students get medals in exactly two of these categories, we have:

n(A∩B) + n(B∩C) + n(A∩C) −3*n(A∩B∩C)

=n(A∩B) + n(B∩C) + n(A∩C) −3*6 ……............... (1)

n(A∪B∪C)=n(A)+n(B)+n(C)−n(A∩B)−n(B∩C)−n(A∩C)+n(A∩B∩C)

Thus, n(A∩B)+n(B∩C)+n(A∩C)=n(A)+n(B)+n(C)+n(A∩B∩C)−n(A∪B∪C)

Using equation 1:

=n(A)+n(B)+n(C)+n(A∩B∩C)−n(A∪B∪C)−18

Substitute values in the equation:

= 40 + 25 + 212 + 6 − 55 − 18

= 283 - 73

= 210

Number of students that get medals in exactly two of these categories are 210

6 0
3 years ago
What is the value of b in the equation below?
grin007 [14]

Answer:

I think it is -10

Step-by-step explanation:

Using a^m*a^n=a^(m+n)

b=(m+n)

In this question,

m= -8 and n= -2

so b= (m+n)=(-8+-2) = -10

6 0
3 years ago
For a few months, the function f(x) = 15(3)^x represented the number of bees in a new hive x months from the time it was started
Brut [27]
I had the same problem. It's C.
6 0
3 years ago
Read 2 more answers
Find parametric equations for the line. (Use the parameter t.) The line through the origin and the point (2, 6, −1) (x(t), y(t),
dimaraw [331]

Answer:

5

Step-by-step explanation:

i think its 2 with the remainder of 8

5 0
3 years ago
Lydia bought a shirt at 20% off its retail price of $40. She paid a 5% tax on the price after the discount. How much did Lydia p
Alecsey [184]
40 x .80 = 32 x 1.05 = 33.60 is what she paid
3 0
3 years ago
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