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rjkz [21]
2 years ago
9

The mean of five numbers is 8. If one of the five numbers is removed, the mean becomes 9. What is the value of the number that w

as removed
Mathematics
1 answer:
mestny [16]2 years ago
3 0

Using the mean concept, it is found that the value of the number that was removed was of 4.

<h3>What is the mean?</h3>

The mean of a data-set is given by the <u>sum of all observations in the data-set divided by the number of observations</u>.

The mean of five numbers is 8, hence, the sum of the numbers is given by:

S = 5 x 8 = 40.

If one of the five numbers is removed, the mean becomes 9, hence, the sum of the four numbers is given by:

S = 4 x 9 = 36.

The difference is:

40 - 36 = 4.

Hence, the value of the number that was removed was of 4.

More can be learned about the mean concept at brainly.com/question/25122507

#SPJ1

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What is the equation in slope-intercept form of a line (y = mx + b) that has aslope of 3 y-intercept of 6?
arsen [322]

The equation of the line is y = 3x + 6

<h3>What are linear equations?</h3>

Linear equations are equations that have constant average rates of change.

Note that the constant average rates of change can also be regarded as the slope or the gradient

<h3>How to determine the equation of the line?</h3>

The given parameters are

Slope, m = 3

y-intercept, c = 6

A linear equation is represented as

y = slope * x + y-intercept

i.e.

y = mx + c

So, we have

y = 3x + 6

Hence. the linear equation is y = 3x + 6

Read more about linear equation at

brainly.com/question/14323743

#SPJ1

5 0
1 year ago
Given the diagram below what is the tan 60
GalinKa [24]

Answer:

tan 60 = √3

Step-by-step explanation:

using SOH CAH TOA

tan theta = opposite/adjacent

Let the side opposite  to angle 60 degrees be x

Hence;

tan 30 = 5/x

x = 5/tan 30

x = 5/1/√3

x = 5√3

Get tan 60

tan 60 = 5√3/5

tan 60 = √3

4 0
3 years ago
At his aunts farm benjamin sees s horse that is 2 meters long name two other things thats 2 meters long
Kisachek [45]
A person could be about 2 meters, if there are really tall.

Two meters is equal to about 6 and half feet. You could have fences that are that tall, trees that are that tall, doors that are that tall, a couch could be that long, a table could be that long, etc.
3 0
3 years ago
A polynomial in x has m nonzero terms. Another polynomial in x has n nonzero terms. These polynomials are multiplied and all lik
ahrayia [7]

Answer:

Resulting polynomial contains a maximum mn positive terms.

Step-by-step explanation:

Given one polynomial contains m nonzero terms and second polynomial contains n nonzero terms.

To show after multiplication and combining similar terms how many positive terms contan by both polynomial.

Now let,

  • m=1=(a), n=2=(x,y) then after multiplication a(x+y)=ax+ay, 2 positive terms.
  • m=2=(a,b), n=3=(x,y,z) then after multiplication (a,b)(x+y+z)=ax+ay+az+bx+by+bz, 6 positive terms.
  • m=3=(a,b,c), n=4=(x,y,z,t) then after multiplication (a+b+c)(x+y+z)=ax+ay+az+at+bx+by+bz+bt+cx+cy+cz+ct, 12 positive terms.

So we see that after multiplication of m and n positive terms, there are mn positive terms are there.

To prove this we have to apply mathematical induction. So let the statement is true for m=p and n=q number of positive terms, then mn=pq.

We have to show avobe ststement is hold for m+1, n+1. Considering,

(m+1)(n+1)=mn+m+n+1=pq+p+q+1=p(q+1)+1(q+1)=(p+1)(q+1)

Hence above statement is true for m+1 and n+1.

Thus there will be mn nonzero terms after multiplication and combine positive terms.

6 0
3 years ago
8&gt;z-6 <br> please show work
Alexandra [31]

Answer:

14>z

Step-by-step explanation:

add 6 to both sides

4 0
3 years ago
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