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3 years ago

E

Mathematics

1 answer:

ss7ja [257]3 years ago

7 0

Answer: (-4 ,4)

Step-by-step explanation:

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SEE QUESTION IN IMAGE Find the mean of the distribution above (a) ½ (b) 1 (c) 3 (d) 2

Afina-wow [57]

Answer:

d) 2

Step-by-step explanation:

Total number of oranges:

0*5 + 1*8 + 2*6 + 3*6 + 4*3 + 5*2 = 60

Number of baskets:

5 + 8 + 6 + 6 + 3 + 2 = 30

Mean of the distribution of oranges:

60/30 = 2

Correct choice is d

8 0

3 years ago

to get ready for a field trip, students and adults were put into groups. for every 8 students in a group , there were 3 adults.

Vladimir [108]

There were 18 adults on the field trip. See, since 8x6=48, and there are 3 adults in each group, and there are 6 groups, there are 18 adults (6x3=18)

4 0

4 years ago

(a) Write an expression, in terms of n, for the nth term of this sequence. -1,3,7,11

ExtremeBDS [4]

The expression for nth term is:

a_n = -5+4n

Further explanation:

Given sequence is:

-1,3,7,11

We have to determine first if this is a arithmetic sequence or geometric sequence

The sequence is an arithemtic sequence if the common difference of cosecutive terms is same.

In this case,

$d = a_2 -a_1 = 3-(-1) = 3+1 = 4\\a_3 -a_2 = 7-3 = 4$

As the common difference is same the sequence is an arithmetic sequence

Standard form of arithmetic sequence is:

$a_n = a_1+(n-1)d$

Putting the values of a_1 and d

$a_n = -1 + (n-1)(4)\\a_n = -1+4n-4\\a_n = -5+4n\\$

The expression for nth term is:

a_n = -5+4n

Keywords: Arithmetic Sequence, nth term

Learn more about arithmetic sequence at:

#LearnwithBrainly

6 0

3 years ago

3/5(4.3 – 7.8) + 2 1/9 ?

True [87]

Answer:

0.01

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

Which gives the missing value in 3/n24/40

VashaNatasha [74]

Answer:

n = 120/34

Step-by-step explanation:

3/n = 34/40

3*40 = 34*n

120 = 34*n

n = 120/34 = 60/17

3 0

3 years ago