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ddd [48]
3 years ago
12

Using a graphical method, solve the simultaneous equations x+y =4 and y=2x+1

Mathematics
1 answer:
adoni [48]3 years ago
7 0

Answer:

(1, 3)

Step-by-step explanation:

Given the expression

x+y = 4 ... 1

y = 2x+1 ....2

Substitute equation 2 into 1

x + (2x+1) = 4

3x + 1 = 4

3x = 4-1

x = 3/3

x = 1

Since y = 2x + 1

y = 2(1) + 1

y = 3

Hence the solution to the equation is (1,3). This means that the coordinate point on the graph where both lines intersect will be at (1, 3)

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Will the sum of 2x3 + x2 - 4 and -5x² - 6x? be a polynomial?<br> yes<br> no
Eva8 [605]

Answer:

Yes

Step-by-step explanation:

Since we are adding two polynomials

The sum will also be polynomial

4 0
3 years ago
A triangular prism is 17 yards long and has a triangular face with a base of 12 yards and a height of 8 yards. The other two sid
Lisa [10]

Answer:

640 yard²

Step-by-step explanation:

From the question,

The surface are of a triangular prism is given as

A = bh+2ls+lb.................. Equation 1

Where A = Surface area of the triangular prism, b = base of of the triangular face, h = height of the triangular face, l = length of the triangular prism, s =  length of one of the other sides of the triangle

Given: l = 17 yards, b = 12 yards, h = 8 yards, s = 10 yards.

Substitute these values into equation 1

A = [(12×8)+(2×17×10)+(17×12)]

A = 96+340+204

A = 640 Yard²

6 0
3 years ago
Please help me with this equation, add process too. Thanks
ICE Princess25 [194]

\qquad\qquad\huge\underline{\boxed{\sf Answer☂}}

Let's solve ~ ☂

\qquad \sf  \dashrightarrow \:  - 0.6(m + 1) = 3

\qquad \sf  \dashrightarrow \:  - (m + 1) = 3 \div 0.6

\qquad \sf  \dashrightarrow \:  - (m + 1) = 5

\qquad \sf  \dashrightarrow \:  - m  -  1= 5

\qquad \sf  \dashrightarrow \:  - m = 5 + 1

\qquad \sf  \dashrightarrow \:  - m =  6

\qquad \sf  \dashrightarrow \: m =  - 6

I hope it helps ~

6 0
2 years ago
How do you minimize 4 x+y for the bounded feasible region displayed above?
Anna [14]

Answer:

Maximization and Minimization Problems on Feasible Regions

Step-by-step explanation:

go to that yt vid

3 0
3 years ago
A planer is set to remove 1/16 inch from a board on each pass. If the board starts out at 3/4 inch thick how many passes would y
Pachacha [2.7K]
The answer would be 7 passes
7 0
3 years ago
Read 2 more answers
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