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mrs_skeptik [129]
3 years ago
5

Solve the simultaneous equations.3x-y=1, 2x + 5y = 41​

Mathematics
1 answer:
inessss [21]3 years ago
3 0
Y=3x-1, Y=-2/5x + 41/5
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Why is it important to calculate the distance between two points on a cartesian coordinate plane?
Gwar [14]

Answer:

Derived from the Pythagorean Theorem, the distance formula is used to find the distance between two points in the plane. The Pythagorean Theorem,

a

2

+

b

2

=

c

2

, is based on a right triangle where a and b are the lengths of the legs adjacent to the right angle, and c is the length of the hypotenuse. The relationship of sides

|

x

2

−

x

1

|

and

|

y

2

−

y

1

|

to side d is the same as that of sides a and b to side c. We use the absolute value symbol to indicate that the length is a positive number because the absolute value of any number is positive. (For example,

|

−

3

|

=

3

. ) The symbols

|

x

2

−

x

1

|

and

|

y

2

−

y

1

|

indicate that the lengths of the sides of the triangle are positive. To find the length c, take the square root of both sides of the Pythagorean Theorem.

c

2

=

a

2

+

b

2

→

c

=

√

a

2

+

b

2

It follows that the distance formula is given as

d

2

=

(

x

2

−

x

1

)

2

+

(

y

2

−

y

1

)

2

→

d

=

√

(

x

2

−

x

1

)

2

+

(

y

2

−

y

1

)

2

We do not have to use the absolute value symbols in this definition because any number squared is positive.

A GENERAL NOTE: THE DISTANCE FORMULA

Given endpoints

(

x

1

,

y

1

)

and

(

x

2

,

y

2

)

, the distance between two points is given by

d

=

√

(

x

2

−

x

1

)

2

+

(

y

2

−

y

1

)

2

Step-by-step explanation:

4 0
3 years ago
If you were to roll the dice one time what is the probability it will NOT land on a 2? Put your answer in fraction form.
OLEGan [10]

Answer:

5/6

Step-by-step explanation:

On a standard 6-sided die, there is only one 2. That means that there are 5 other numbers that it could land on (1, 3, 4, 5, 6).

Using that information, the probability of it not landing on a 2 is 5 out of 6 or 5/6. This is because you must do part over whole. The "part" in this situation is the 5 "wanted" numbers, and the "whole" is 6 because there are six potential numbers that it could land on.

I hope this helps.

8 0
4 years ago
Read 2 more answers
Write the following fraction as a decimal. A. 1.10 B. 10.1 C. 0.1 D. 0.01
skelet666 [1.2K]

A) 1.1/1=11/10

B)10.1/1=101/10

C).1/1=1/10

D).01/1=1/100

you put the number you have to multiply the decimal with to get a whole n.o as the decimal

Hope you found this answer useful

7 0
3 years ago
Read 2 more answers
here’s a graph of the equation x + 3y = 6 select all coordinates pairs that represent a solution to the equation A) 0,2 B) 0,6 C
Afina-wow [57]

Answer:

(0,2) (3,1)

Step-by-step explanation:

5 0
3 years ago
If a translation of (x,y) → (X + 6, 7-10) is applied to figure
horrorfan [7]
The correct answers would be a b and 2 because I don’t know this is a test to be honestly
4 0
3 years ago
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