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Andrej [43]
3 years ago
11

In a class of students, the following data table summarizes how many students play an instrument or a sport. What is the probabi

lity that a student plays a sport given that they play an instrument?

Mathematics
1 answer:
hjlf3 years ago
3 0

8 students out of 27

the total of students is 27 out of the 27 students 19 dont play and instrument and a sport

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Let C(n) be the constant term in the expansion of (x + 4)n. Prove by induction that C(n) = 4n for all n is in N. (Induction on n
stiks02 [169]

Answer:

C(n) = 4 n for all possible integers n in N. This statement is true when n=1 and proving that the statement is true for n=k when given that statement is true for n= k-1

Step-by-step explanation:

Lets P (n) be the statement  

C (n) = 4 n

if n =1

(x+4)n = (x+4)(1)=x+4

As we note that constant term is 4  C(n) = 4

    4 n= 4 (1) =4

P(1) is true as C(n) = 4 n

when n=1

Let P (k-1)

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we need to proof that p(k) is true

C(k) = C(k-1) +1)

      =C(k-1)+C(1)           x+4)n is linear

      =4(k-1)+ C(1)          P(k-1) is true

       =4 k-4 +4              f(1)=4

        =4 k

So p(k) is true

By the principle of mathematical induction, p(n) is true for all positive integers n

3 0
3 years ago
Round off 452 to the nearest 100
belka [17]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Inequality of <br> 6 + 2x &lt; -18
MrMuchimi

Answer:

Step-by-step explanation:

Here you go mate

Step 1

6+2x<-18  Equation/Question

Step 2

6+2x<-18  Simplify

-24>2x

Step 3

-24/2=2x/2  Divide by 2

answer

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Kobotan [32]
240,240 is a lot of students for a marching band!

lets use S as a variable for students

s=240/40

240/40

s=6

So there would be 6 students in each row. 
5 0
4 years ago
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Tema [17]

Answer:  14 pieces were not eaten.

Step-by-step explanation:  7 pizzas times 8 slices equal 56 slices total.  75% was eaten, leaving 25% or 1/4 not eaten. 1/4 of 56 or 56 divided by 4 is 14.

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