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3 years ago

Anyone know this problem?

Mathematics

1 answer:

sukhopar [10]3 years ago

5 0

Answer:

0.o8

Step-by-step explanation:

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{2x+2y=2,2(x+y)=10}A. single solution B. no solution C. infinite solutions

mixer [17]

To find the number of solutions of a system of linear equations you need to identify the slope (m) in each equation:

$y=mx+b$

-If the slope is the same in both lines the system has no solution

-If the slope is different in the lines the system has one solution

-If the equation are the same (incluided the value of b) the system has infinitely many solutions

You have the next equations:

$\begin{gathered} 2x+2y=2 \\ 2(x+y)=10 \end{gathered}$

Write the equations in slope-intercept form y=mx+b (solve for y).

First equation:

$\begin{gathered} 2y=-2x+2 \\ y=-\frac{2}{2}x+\frac{2}{2} \\ \\ y=-x+1 \end{gathered}$

Second equation:

$\begin{gathered} 2x+2y=10 \\ 2y=-2x+10 \\ y=-\frac{2}{2}x+\frac{10}{2} \\ \\ y=-x+5 \end{gathered}$ As the equations have the same slope m = -1, the system has no solution (the line doesn't cross each other)

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2 years ago

What is adding 40 percent to 1540.00

Ludmilka [50]

Answer:

Addition but... 40/100x1540 = 616.00

Step-by-step explanation:

edit: i goofed

8 0

3 years ago

Read 2 more answers

Diameter of a circle with a circumference of 55 feet rounded to the nearest hundredth

Ket [755]

Answer:

17.51

Step-by-step explanation:

Notes: Circumference= 2 times pi times r

Diameter is double the radius (2r)

How to solve: You just need to divide 55 feet by pi

2(pi)(r)/( pi) = 55/(pi)

2r = 17.51

diameter = 17.51

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2 years ago

What is the length of the line segment that begins at (2,6) and ends at (7,6)?

ivolga24 [154]

$\sqrt{(2-7)^2 + (6-6)^2} = \sqrt{25} = 5$

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4 years ago

Simplify the radical expression -21√27x^9

padilas [110]

-root 3*63x^2 is the answer you want

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3 years ago