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2 years ago

How do you solve this??

Mathematics

2 answers:

Dafna1 [17]2 years ago

8 0

The sum in the line is 180

vovikov84 [41]2 years ago

7 0

Answer:

The sum of this entire line is 180, so to solve this we would subtract 20 from 180, which means x = 160.

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Please help!

quester [9]

Answer:

The third one

Step-by-step explanation:

Median - Middle number in terms of value

Mode - outcome that appears the most

Mean - average ( add the numbers together and divide that by the amount of numbers )

Data without Kevins score

13, 21, 28, 9, 31

First let's find the mean

To find the mean we simply add the numbers up and divide that by the total amount of numbers ( there are 5 numbers )

13 + 21 + 28 + 9 + 31 = 102

102/5=20.4

So the mean without Kevins score is 20.4

Next let's find the mode

The mode is the number that appears the most

Looking at the data no number appears more than once so there is no mode

Finally let's find the median.

To make it easier to find let's list the numbers in order from least to greatest

9, 13 , 21 , 28, 31

We then go to the middle number ( which would be 21 )

The mode is 21

So for data without Kevins score the mean would be 20.4, the median would be 21 and the mode would be none

Now let's add in Kevin's score and repeat this process

Data with Kevin's score

13, 21, 28, 9, 31, 9

First let's find the mean

( Note that there is 6 numbers this time )

13 + 21 + 28 + 9 + 31 + 9 = 111

111/6 = 18.5

So mean with Kevin's score = 18.5

Next let's find the mode

The number 9 appears the most so the mode is 9

Finally let's find the mean

Once again let's list the numbers from least to greatest

9, 9, 13 , 21 , 28, 31

Because there is an even amount of numbers we will take the sum of the two middle numbers and divide that by 2

The two middle numbers would be 21 and 13

21 + 13 = 34

34/2=17

So median = 17

In the end we get the following

Without Kevins score

Mean = 20.4

Median = 21

Mode = none

With Kevin's score

Mean = 18.5

Median = 17

Mode = 9

This information corresponds with the third table

5 0

2 years ago

Please help solve!!!!!!!!!!

Deffense [45]

Answer:

Height = 17.31821 feet

Step-by-step explanation:

Explanation

From graph

Given angle θ = 6.5° and a = 152 feet

we need to find the height (h)

By using the tangent rule

$tan \alpha = \frac{opposite side}{adjacent side}$

$tan 6.5 = \frac{b}{152}$

Cross multiplication , we get

b = 152 × tan 6.5°

b = 152 × 0.113935

b = 17.31821 feet

Height = 17.31821 feet

6 0

3 years ago

Can someone help please I need help

mina [271]

Answer:

C= 25n+100

Step-by-step explanation:

Let's see what's in the graph :

the image of 4 is 200 C(4)=200
C(2)= 150

let m be the slope of this function :

m= $\frac{200-150}{4-2}$ =25

The first value in the graph is 100 wich is c(0)=100

so the equation is : c=25n+100

7 0

2 years ago

describe why it might not be good idea to use a,key where each symbols stands for 1 in a picture graph

Natalija [7]

Because that is what everyone assumes it to be. So , if it is one, you are just making yourself do more work by making a kind of useless key.

5 0

2 years ago

Greta is opening a savings account. She starts with $100 and plans to add $50 each week. What is the unit rate of change for thi

Semmy [17]

Greta starts with $100 in her savings account

She adds $50 each week

Balance after week 1 = 100 + 50 = 150

Part A

Unit rate of change here is = $\frac{\text{Balance after week 1 - Initial balance}}{\text{Initial balance}} * 100$

⇒ Unit rate of change here is = $\frac{\text{150 - 100}}{\text{100}} * 100$

⇒ Unit rate of change here is = 50%

Part B

Equation to calculate the amount of money Greta will have after any number of weeks = ?

Money after 'x' number of weeks = $\text{Initial Deposit + x * Weekly Deposit}$

⇒ Money after 'x' number of weeks = $\text{100 + x * 50}$

Part C

Money Greta will have after 1 year= ?

In a year there are 52 weeks

So, putting x = 52 in the solution of Part B

⇒ Money after 52 weeks = $\text{100 + 52 * 50}$

⇒ Money after 52 weeks = $\text{100 + 2,600}$

⇒ Money after 52 weeks = 2,700

8 0

2 years ago