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Black_prince [1.1K]
4 years ago
12

Why do you start with the greater number when adding on a number line

Mathematics
2 answers:
Furkat [3]4 years ago
7 0

Solution:

The reason is that it helps you to deal in which direction you have to move either on right or left of number line of that number.

Let me illustrate this by considering few examples.

1. 5 + 3 , here greater number is 5, so to add 3 you have to move 3 units right on number 5.

2. 5 + (-8), Greater number 8 , but it has negative sign before it . So to add 5 move 5 units left of 8,  on number line.


Leokris [45]4 years ago
4 0
U start with the geater number because its father away from 0 and so u can go back or forth
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5. Solve for x using any method you'd like. Round to the hundredth. Show all your work. (2 points each) d. 20x^3 = 7x^5
Sindrei [870]

Solving this equation for x, we have:

\begin{gathered} 20x^3=7x^5 \\ 7x^5-20x^3=0 \\ x^3(7x^2-20)=0 \\ \begin{cases}x^3=0\to x=0 \\ 7x^2=20\to x=\pm\sqrt[]{\frac{20}{7}}\end{cases} \end{gathered}

6 0
1 year ago
A circle of radius 10cm had a hole cut out of its centre to form a ring. Find the radius of the hole if the remaining area is 50
valentina_108 [34]

Answer:

7.07cm

Step-by-step explanation:

A=πr2

= 100 π

= 314.159265359/2 (squared)

50% = 157.07963268cm ^2

We look for radius in the area formula

A=πr2

(A / π ) = 157.07963268/ 3.14159265359 =  √50 = 7.07106781187

We do not need to half this as already has been squared.

6 0
3 years ago
Here is a picture of a math problem.
MAXImum [283]
The coordinates are (6,-9) (-12,-3) (0,-7)

you put 6 in the place of x to get 6+3y=-21 then you must take 6 away from each side to get 3y= -27 then divide each side by 3 so -27 divided by 3 is -9. do this for all of them! hope it helped!
3 0
3 years ago
Can anyone help me with this question please thank you!
Vedmedyk [2.9K]

Answer:

B. The individual events are dependent. The probability of the combined event is 3.772%.

Step-by-step explanation:

The individual events are dependent because you would have to draw 2 red candies in a row. After the first drawing, there would be one less red candy in the bag, which would affect the second drawing.

First drawing probability: 11/54, or 20.370%

Second drawing probability: 10/54, or 18.519%

Combined probability: 20.370*18.519 = 3.772%

6 0
3 years ago
Which expression has the least value when x = 100<br><br>A. 1/x<br>B. 10/x<br>C. 1-x<br>D. 10-x​
noname [10]

Answer:

C. 1-x

Step-by-step explanation:

Negatives are alwys less than positives meaning a&b are out and 1-100 is -99 and 10-100 is -90 meaning that C is your answer

6 0
3 years ago
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