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3 years ago

9

3x+y=6 5x-2y=10 the systems of equation using the addition method.

1 answer:

Ipatiy [6.2K]3 years ago

8 0

3x+y=6
+y=6+y
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Can someone please help me with this problem???

hammer [34]

Answer:

x + 4 = 5x - 6

x = 2.5

Step-by-step explanation:

x + 4 = 5x - 6

4 = 4x -6

10 = 4x

x = 2.5

8 0

3 years ago

What are the factors of x2 – 100?

Komok [63]

Answer:

$(x+10)(x-10)$

Step-by-step explanation:

Given : $x^{2} -100$

To Find : What are the factors of $x^{2} -100$

Solution:

$x^{2} -100$

Since 100 = $10^{2}$

$x^{2} -10^{2}$

using property : $a^{2} -b^{2} =(a+b)(a-b)$

$(x+10)(x-10)$

Thus the factors of $x^{2} -100$ are (x+10) and (x-10)

6 0

3 years ago

Read 2 more answers

which graph represents (x,y)(x,y)left parenthesis, x, comma, y, right parenthesis-pairs that make the equation y = 0.5x+5y=0.5x+

Gnom [1K]

Answer:

c

Step-by-step explanation:

its right ok?

6 0

3 years ago

Which is the graph of the function f(x) = 1/2x2 + 2x - 6?

Morgarella [4.7K]

Answer:

1/2 x^2 + 2x - 6 = 0

(1/2 x - 1)(x + 6) = 0

zeroes are 2 and -6

so the graph intersects x axis at -6 and 2

The only one to do that is diagram A

Step-by-step explanation:

6 0

2 years ago

I need the answer for numbers 1-4 to see if I’m correct. Anyone know?

svetlana [45]

They are all correct good job

8 0

3 years ago