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Ann [662]
3 years ago
12

Line BC has an equation of a line y = 2x + 3, and line EF has an equation of a line y = negative one over 2x + 4. These two equa

tions represent
A. parallel lines because the slopes of the lines are equal
B. perpendicular lines because the slopes are opposite reciprocals
C. the same line when graphed
D. lines that intersect, but not at a right angle
Mathematics
2 answers:
xeze [42]3 years ago
7 0
A. because when the slopes are the same in two lines, they are parallel.
Alex17521 [72]3 years ago
5 0

Answer:

so what is the answer

Step-by-step explanation:

is it A or B?????

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Help Me, Will give 100 points.
Bad White [126]

Answer:

baka

Step-by-step explanation:

6 0
2 years ago
Eight times a number plus five another number is -13. The sum of the two numbers is 1. What are the numbers?
Pani-rosa [81]
Eight *(a number) plus 5*(another number) is -13.

translates to:

8(x) + 5(y) = -13

The sum of (the number) and (the other number) is 1.

translates to:

(x) + (y) = 1


We have a system of two equations involving two unknowns: x and y.

\rm 8x+5y=-13\\
~~x+~~y=~~~~1

We can easily solve the system using Substitution or Elimination. Let's use Elimination this time.

We'll multiply the second equation by -8 so that the x's match up.

\rm ~~~8x+5y=-13\\ -8x-8y=-8

When we add the equations together, the x's will fall out of the equation, summing to zero. The 5y and -8y will sum to -3y and the right hand side will sum to -21.

\rm -3y=-21

Divide by -3,

\rm y=7

Plug back into one of your original equations to find the value of x,

\rm x+y=1\\
x+7=1

Subtract 7,

\rm x=-6
8 0
3 years ago
Katherine and Shally had $288 altogether. Katherine gave 1/3 of her share to Shally and their father gave $68 to Shally. They no
erastova [34]
1/3 of $288 is $96 So, therefore Shally had $96 at first.
But They both didn't have the same amount of money after too because:
1/3 of $288 is $96 
$96 + $68 = $164     So Shally has $164

Now, $288 - $96 = $192.    So Katherine has $192

So therefore they did not have the same amount of money but 1/3 of $288 is $96
 

4 0
3 years ago
which inequality represents all values of x for which the quotient below is defined?√8x^2 divided by √2x
MA_775_DIABLO [31]

Answer:

The function is defined when x > 0

Step-by-step explanation:

Functions with radicals are only undefined when the value in the radical is negative, because the root of a negative number is imaginary.  

We know the function is undefined when the denominator is equal to zero.  \sqrt{2x} is equal to zero when x=0.

We also know that functions with radicals are undefined when the value in the radicals are negative, because the root of a negative number is imaginary.  .  8x^{2} will always be positive, but 2x is negative when x < 0.

So the function is undefined when x = 0, and when x < 0.

Therefore it is defined when x > 0

5 0
3 years ago
Help with this question
Vikentia [17]

Answer:

60

Step-by-step explanation:

3 0
3 years ago
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