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Nastasia [14]
3 years ago
8

7x-2y=-5which ordered pair is a solution of the equation

Mathematics
1 answer:
sashaice [31]3 years ago
3 0

Answer:

What ordered pair my closest answer is y = 5/2+7x/2

Step-by-step explanation:

Subtract 7x from both sides of the equation.

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How many grams in 88.9kg
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3 years ago
Read 2 more answers
graph each equation for the interval -360 is less than or equal to x and 360 is greater than or equal to x: y=1/2cos(2x+60)
lianna [129]

Answer:

See graph

Step-by-step explanation:

We want to graph y=\frac{1}{2}\cos(2x+60\degree) on the interval -360\degree \le x \le 360\degree

We need to plot some few points

(-30\degree,\frac{1}{2})

(-15\degree,\frac{\sqrt{3}}{4})

(0\degree,\frac{1}{4})

(15\degree,0)

(30\degree,-\frac{1}{4})

(45\degree,-\frac{\sqrt{3}}{4})

(60\degree,-\frac{1}{2})

(75\degree,-\frac{\sqrt{3}}{4})

(90\degree,-\frac{1}{4})

(105\degree,0)

(120\degree,\frac{1}{4})

(135\degree,\frac{\sqrt{3}}{4})

(150\degree,\frac{1}{2})

This will give us one cycle.

We then use the pattern to complete the graph on the interval

-360\degree \le x \le 360\degree

6 0
3 years ago
Steps factoring polynomials using gcf for 9x²+9x
Molodets [167]

Answer:

Step-by-step explanation:

Step 1: Identify the GCF of the polynomial.

Step 2: Divide the GCF out of every term of the polynomial. ...

Step 1: Identify the GCF of the polynomial. ...

Step 2: Divide the GCF out of every term of the polynomial.

Step 1: Identify the GCF of the polynomial. ...

Step 2: Divide the GCF out of every term of the polynomial .

6 0
3 years ago
I need some help with this
marshall27 [118]
[-2 3] times [2
                    1] 

comes out to -2(2)+3(1) = -1.  Eliminate the first answer choice, due to 
                                                 the presence of that -7 instead of -1.

[-2 3] times [0
                    -3]

comes out to - 9.  This matches answer choices #2, #3 and #4.

[3,-4][2
           1]

comes out to 6-4, or 2.  Matches #2, #3, #4.


[3, -4][0
           -3]

comes out to +12, which matches answer choice #4.

Answer choice #4 is the correct one.

Review matrix multiplication if need be.  Feel free to ask questions here and now if need be.

7 0
4 years ago
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