Mathematics High School

PLEASE HELP ME!
Explain what the algebraic solution of a system of two linear equations is and what that means in terms of the graphs of the equations of the system. Use AT LEAST 2 complete sentence in
your explanation. (3 points)

PLEASE HELP ME!Explain What The Algebraic Solution Of A System Of Two Linear Equations Is And What That

Answers

Answer 1
The two methods of solving for systems of linear equations algebraically are the methods of substitution and elimination.

The goal of the method of substitution is to reduce a system of two linear equations in two variables to a single equation in one
variable.

The key step in using method of elimination is to obtain opposite coefficients for one of the variables so that adding the two equations eliminates this variable.

Solving systems of linear equations by graphing involves sketching the lines representing the equations to determine whether the lines intersect at a point, which is the solution of the system.

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Related Questions

I kinda need help and an explanation Cant understand

Answers

Answer:

look in explanation

Step-by-step explanation:

Seeing as most of your answers are wrong, I'll start from the beginning.

a rational number is a number that can be expressed as a fraction.

an integer is a  whole number.

an irrational number is a number that cannot be expressed as a fraction.

an integer is also always a rational number.

Using this, we can sort the values.

-77/11 can be simplified as -7, which is an integer.

the square root of 144 is 12, which is an integer.

0.25 is a decimal that can be expressed as a fraction, which makes it a rational number that is not an integer.

the square root of 20 is a value that cannot be expressed as a fraction, which makes it irrational.

17/4 is a fraction that is not a whole number, which makes it a rational number but not an integer.

finally, 2*the square root of 10 is irrational.

What is the solution of log(2 + 4) = log(14-3t)

Answers

Answer:

the answer is 2.66

Step-by-step explanation:

use the calculater

angle1,2 , and angle3 form a straight line. If m angle3 is six more than twice m angle1 m angle2 is 27 less than m angle3 find m angle2

Answers

Since it's an angle on a straight line, the value of angle 2 is 23.25°

Angle 1 = m

Angle 2 = m - 27

Angle 3 = 2m + 6

It should be noted that the sum of angles in a straight line is equal to 180°, therefore we need to equate all the angles given to 180°. This will be:

m + (m - 27) + (2m + 6) = 180°

m + m - 27 + 2m + 6 = 180°

4m = 180° + 27° - 6°

4m = 201°

m = 201/4

m = 50.25°

Therefore, angle 2 will be:

m - 27 = 50.25 - 27 = 23.25°

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What is the answer, I need help.

Answers

Answer: i think is D

Step-by-step explanation:

For brainily please help :/

Answers

Answer:

AB

Step-by-step explanation:

They are the shortest combined side

Is the square of an irrational number always irrational? Explain​

Answers

Answer:NOO

Step-by-step explanation:

For example, √3 is irrational, but (√3)2 = 3, which is rational.

HOPE IT HELP

Answer:

No.

Explanation:

For example, √3 is irrational, but (√3)2 = 3, which is rational.

Hope this helps....


f(x) = x2 - 6x + 8?
In vertex form

Answers

Answer: f(x) = (x - 3)² - 1

Step-by-step explanation:

Hope it helps :)

(y = a(x-h)^2+k)

(h,k) = (x,y) of vertex

Answer:

(-3, -1), the axis of symmetry is x = -3.

Step-by-step explanation:

Solve each problem and decide which is the best of the choices given.
What is the distance between the points (1,6) and (-7,3) on a standard coordinate plane?

39

73

173

55

Answers

55 is the answer !!!!

Step-by-step explanation:

I think you are missing the square root signs or so in the answer options.

the distance between 2 points is calculated by using Pythagoras for right-angled triangles.

c² = a² + b²

c is the Hypotenuse of the triangle and the distance between the points, which are the end points of the Hypotenuse.

a and b are the legs and enclose the 90 degree angle. they are the differences of the x and y coordinates between the 2 points.

so,

distance² = (1 - -7)² + (6 - 3)² = 8² + 3² = 64+9 = 73

=>

distance = sqrt(73)

ANSWER FOR 20POINTS PLEASE

Answers

Answer:

[tex] | {7}^{2} - 8| = |49 - 8 = |41| = 41 [/tex]

When 3 times a number is added to the square of the number, the result is 40. Determine the number

Answers

Answer:

5 or -8

Step-by-step explanation:

[tex](3 \times x) + x {}^{2} = 40[/tex]

[tex]3x + {x}^{2} = 40[/tex]

[tex] {x}^{2} + 3x - 40 = 0[/tex]

using factorization method

[tex]( {x}^{2} + 8x) ( - 5x - 40) = 0[/tex]

[tex]x(x + 8) - 5(x + 8) = 0[/tex]

[tex](x - 5)(x + 8) = 0[/tex]

[tex]x - 5 = 0[/tex]

or

[tex]x + 8 = 0[/tex]

[tex]x = 5[/tex]

or

[tex]x = - 8[/tex]

guys pls help me!!!!!

Answers

13c - 15 = 180
+ 15 + 15
13c/13 = 195/13
C = 15
Hope this helped

Answer:

c = 15

Step-by-step explanation:

(7c - 7) + (6c - 8) = 180

Simplify

13c -15 = 180

13c = 195

c = 15

OMGGGGGGG PLSSS HELP ME WITH THIS QUESTION, IM SUPER STUCK PLS PLS PLS ITS DUE VERY SOON!!!! EXPLAIN PLSSS, WILL MARK THE BEST ANSWER BRAINEST

Answers

It’s H. You have to set up an equation: y=10x-11. -11 is the starting value, so you put it at the end. You add ten each time, so you put 10x. Just plug in 100 for x, and you’ll get 989

The rectangle has an area….

Answers

Answer:

5.5193237 times 10 to the power of -10

Step-by-step explanation:

To solve you just need to divided the area by the length or width the question has provided.  Please note I am in 7th grade.  

Help me pleaseeeeeeeeeeeeeee

Answers

Answer:

34

Step-by-step explanation:

The left shapes' side is 10 and the other side is 7. The difference between these sides are 3.  Onto the next polygon we would do the same thing. So 37-3 = 4

Glenda wants to find out how often people in her town visit the cinema.
She collects data from 10 people standing in a queue outside a cinema.
Write down two reasons why the data she collects may not be reliable.

Answers

Answer:

She has a very low sample size (Only 10 people)She only interviews specific people (She only interviews people on line, which will lead to biased results

Tam giác ABCD có góc B = 65 Độ góc C = 115 Độ hỏi góc A bằng bao nhiêu độ

Answers

Answer:

a

Step-by-step explanation:

kasi yun ang tama at

nain tindi han ko

A





pls give me brainliest!! <3 have a good day

Solve for RS literally so lost

Answers

Answer:

at first find the value of x by combining both equations then put the value of x in first equation (2x-9).

I HOPE IT WILL HELP YOU.

Thank you.

TEDDYLOVER

How does the exponential function f(x) = 2 · 3^x + 4 appear as a graph?
PLEASE PLEASE HELP IM LITERALLY CRYING EVERYONE IS DELETING COMMENTS NEED ASAP

Answers

I believe this is how that exponential function would look as a graph (if you need a better pic let me know)

( −2 x^3) ^ 3 simplify

Answers

Your answer is -8x^9

Answer:

[tex]-8x^9[/tex]

Step-by-step explanation:

We can split up the exponent into multiple products: [tex](-2x^3)^3=(-2)^3*(x^3)^3[/tex].

We know that [tex](-2)^3=(-2)*(-2)*(-2)=-1*-1*-1*2*2*2=-1*8=-8[/tex].

We also know that [tex](x^3)^3=x^{3*3}=x^9[/tex].

So, our answer is [tex]\boxed{-8x^9}[/tex] and we're done!

PLS HELP WILL MARK BRAINLIEST!
A horse travels at about 65 kph. At this rate, how far can it travel in 20 minutes

Answers

Answer:  Approximately 21.667 km

This value as a fraction is 65/3, but I think the decimal form is probably more practical in real world settings.

======================================================

Work Shown:

20 min = 1/3 of an hour, since 20/60 = 1/3. In other words, there are three chunks of 20 minutes that make up a full hour.

distance = rate*time

distance = (65 kph)*(1/3 hr)

distance = (65*1/3) km

distance = (65/3) km

distance = 21.667 km which is approximate

Answer:

Distance rate=Rate x Time

Distance= (75 km/h) 20 mins

Convert 20 mins in hours= 1/3 h

Distance= (75 km/h) (1/3 h)= 25 km.....

listen ok

Step-by-step explanation:

hope it help

Need the answer please 20 points!!! Yes m

Answers

Step-by-step explanation:

I will definitely give you answer if you follow me please I will give you your answer if you follow me please

Answer:

I'm pretty sure it's A

Step-by-step explanation:

if its not I'm sorry :)

which is bigger 3/11 or 3/12​

Answers

Answer:

3/11

Step-by-step explanation:pls mark me brainliest

3/11 one uses they have the same numerator you have to look at the denominator which if things are divided into 11ths rather then 12ths, the 11ths pieces are going to be bigger therefore making 3/11 bigger then 3/12

What is the mode?
-2 -6 -7 -4 -7 -6 -6 -2

Answers

Answer:

-6

Step-by-step explanation:

Mode in math means the number that is the most frequent number found in a data set, and in this data set shown, -6 comes the most frequently.

Answer:

-6

Step-by-step explanation:

can someone help with this question please

Answers

Answer:

3

Step-by-step explanation:

Always include the steps and/or background required to get to the final answer. Let’s help other people understand and solve future problems on their own.

N
2
1
1
3
4
Name the
L corresponding
angle with
angle 8.
M.
7
56
8
B. angle 5
A. angle 4
D. angle 7
c. angle 6

Answers

Answer:

angle 4 is the corresponding angle with angle 8

Step-by-step explanation:

Please mark as brainliest

Sandra drove 117 miles in an hour and 30 minutes to visit her son at college, without stopping. If the speed limit is 60 mph, explain why she should or should not get a speeding ticket. Make sure to include mathematical computations in your answer.

Answers

Answer:

She should get a speeding ticket. The speed limit is 60mph and her speed was 78 mph, 18 miles over the speed limit.

Step-by-step explanation:

She drove 117 miles in 90 minutes.

117/90 = 1.3 miles per minute

1.3 miles x 60 minutes = 78 mph

Part 1 state the domain and range of the given relation.

Part 2 is the relation a function

{(-1, 2),(1, 2),(3, 2), (6, 2)}

Please help

Answers

A relation is any set of ordered pairs, which can be thought of as (input, output).

A function is a relation in which NO two ordered pairs have the same first component and different second components.

The set of first components (x-coordinates) in the ordered pairs is the DOMAIN of the relation.

The set of second components (y-coordinates) is the RANGE of the relation.

Part 1:
Domain: {-1, 1, 3, 6}
Range: {2, 2, 2, 2}

Part 2:
To determine whether the given relation represents a function, look at the given relation and ask yourself, “Does every first element (or input) correspond with EXACTLY ONE second element (or output)?”

Remember that a function can only take on 1 output for each input.

It helps to plot the points on the graph and perform the Vertical Line Test (VLT):

The Vertical Line Test allows us to know whether or not a graph is actually a function. If a vertical line intersects the graph in all places at exactly one point, then the relation is a function.

As you can see in the attached screenshot, every vertical line drawn only has 1 point in it. This means that each x-value corresponds to exactly one y-value. The given relation passed the VLT. Therefore, the relation is a function.


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What is the distance between point A(−1, 3) and point B(−8, 3) ?

2 units

5 units

7 units

9 units

Answers

Answer:

7 units

Step-by-step explanation:

Answer:

7 units

Step-by-step explanation:

d = √(x2-x1)²+(y2-y2)

d = √((-8-(-1)² - (3-3)²

d = √ (-7)²-0

d = √49

d = 7 units

Which division problem does the number line below best illustrate? ​

Answers

Answer: A

Step-by-step explanation:

For brainily please help

Answers

i think z is 54 bc all the triangles angles should add up to 180 so you subtract 72 from 180 and since the lengths of the triangle are the same for the two sides the angles should be the same too so divide whatever you got from 180-72 which is 108 and divide it by two which is 54 hope it helped z=54
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