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3 years ago

Please help me. God bless you all

Mathematics

2 answers:

Ivahew [28]3 years ago

6 0

Answer:

x = 11, y = -1/2.

In parentheses the answer is (11, -1/2).

Step-by-step explanation:

x + 4y = 9

x - 2y = 12 Subtract to eliminate the x:

6y = -3

y = -1/2

Substituting in the first equation:

x + 4(-1/2) = 9

x - 2 = 9

x = 11.

Check the results in equation 2:

11 - 2(-1/2)

= 11 + 1

= 12

So it checks out ok.

God bless you too.

Yakvenalex [24]3 years ago

5 0

Answer:

x = 11, y=-½

Step-by-step explanation:

Simultaneous equations - subtract the first equation from the second.

x + 4y = 9

-(x - 2y = 12)

6y = -3

y = -½

Substitute y

x + 4(-½) = 9

x + -2 = 9

x = 11

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URGENT HELP What is the equation of the line that passes through the point (-7, -4) and has a

shepuryov [24]

The final equation is:

$y=x+3$

Further explanation:

The general form of equation of a line in slope-intercept form is:

$y=mx+b$

Here m is the slope

Given

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(x,y) = (-7,-4)

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To find the value of b, we have to put the point in the equation

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The final equation is:

$y=x+3$

Keywords: Slope-intercept form, equation of line

Learn more about slope-intercept form at:

#LearnwithBrainly

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3 years ago

What is the slope of the line shown in the graph?<br> A 3/2<br> B 2/3<br> C -3/4<br> D - 2/3

goldenfox [79]

Answer:

D. -2/3

Step-by-step explanation:

Since it is going down, it is negative

Think of this: Rise/Run

In this case, rise is when you are going up or down the graph

Run is when you are going to the right of the graph

Let's use 2 points (0,3) and (3,1)

Since you are going three points to the right we are going to put 3 in for run

You are going 2 places down, so we are going put -2 in for rise

This gives us -2/3

Another way to do this is (1-3)/(3-0) = -2/3

6 0

3 years ago

Domain of y=3secx/4 is

sladkih [1.3K]

Umm I didn't get a domain.... No solutions were found...

3 0

3 years ago

Don’t mind the blue tete

jeka94

Your answer is gonna be C.

5 0

3 years ago

Todd wants to paint a design on the wood along the diagonal shown. If each tile is 15 centimeters on each side, what is the leng

Illusion [34]

Answer:

130 centimeters

Completed question;

Todd placed 32 square tiles along the edge of his wooden dining room table, as shown below.

Todd wants to paint a design on the wood along the diagonal shown. If each tile is 13 centimeters on each side, what is the length of the diagonal shown?

A. 182 centimeters

B. 169 centimeters

C. 130 centimeters

D. 91 centimeters

Step-by-step explanation:

To determine the length of diagonal, we have to first find the length of each side;

According to the attached image;

The length consist of 8 tiles

And breadth consist of 6 tiles

Length per tile = 13 centimeters

Length = 8 × 13 = 104 centimeters

Breadth = 6×13 = 78 centimeters

Using Pythagoras theorem;

diagonal length d = √(104^2 + 78^2)

d = 130 centimeters

3 0

3 years ago