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2 years ago

Select whether the pair of lines is parallel, perpendicular, or neither. x=−2, y=10

Mathematics

1 answer:

Mila [183]2 years ago

3 0

Answer:

perpendicular

Step-by-step explanation:

x = -2 is a vertical line at x = -2

y is a horizontal line the two lines are perpindicular

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Write the number 2.4 in the form a divided by b, using integers, to show that it is a rational number.

nadezda [96]

2.4= 2 4/10 which simplifies to 2 2/5

5 0

3 years ago

Read 2 more answers

{(-9,3) (5,-6) (3,-1), (-6,5), ?}Which ordered pair can replace the missing value and make the set if ordered pairs NOT a functi

Nookie1986 [14]

$\text{Slope}=\frac{-1--6}{3-5}=\frac{5}{-2}$ $\begin{gathered} y-y_1=\frac{5}{-2}(x-x_1) \\ \\ y--6=\frac{5}{-2}(x-5) \\ \\ -2(y+6)=5(x-5) \\ -2y-12=5x-25 \\ 5x+2y=25-12 \\ 5x+2y=13 \end{gathered}$

The missing values are (-6, -9) ( The last option)

Explanation:

x= - 6 has already produced the value of y as 5, the only pair in the given option the make the given ordered pairs NOT to be a function is (-6, -9) since it will give the value of y to be - 9.

4 0

1 year ago

Simplify the following polynomial expression

Juli2301 [7.4K]

Distribute the negative sign

$7x^2-3x-6$

Combine like terms

-9x^2 + 7x^2 = -2x^2

9x - 3x = 6x

13 - 6 = 7

$-2x^2 +6x + 7$

<u>Answer</u>

$-2x^2 +6x + 7$

3 0

3 years ago

describe the relationship between n and 4 that will make the value of the expression 7×n/4 greater than 7

Lelechka [254]

Answer:

n greater than 4

Step-by-step explanation:

7(n/4)>7

n/4 > 7/7

n/4 > 1

n > 1(4)

n > 4

4 0

4 years ago

On Chatty Cathy’s cell phone plan she pays for minutes used plus a fixed monthly charge. For 500 minutes she pays $35 total, and

Strike441 [17]

Answer:

$25

Step-by-step explanation:

500 mins = $35 (fixed + per minute charge)

1500 mins = $55 (fixed + per minute charge)

If we let per minute charge be "m"

and

let fixed charge be "f"

we can write 2 equations as:

35 = 500m + f

and

55 = 1500m + f

Now,

We re-write both equations in terms of f and equate both expressions:

f = 35 - 500m

and

f = 55 - 1500m

Equating:

35 - 500m = 55 - 1500m

-500m + 1500m = 55 - 35

1000m = 20

m = 20/1000

m = 0.02

Now we find f, what we are looking for:

f = 35 - 500m

f = 35 - 500(0.02)

f = 25

So, the fixed charge is $25

3 0

3 years ago