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slavikrds [6]
2 years ago
6

What expression is equivalent to -15x + 39? *

Mathematics
1 answer:
Nookie1986 [14]2 years ago
7 0

Answer:

-15x + 39 = -3(5x - 13)

Step-by-step explanation:

a. -3(5x - 13) = -15x + 39

b. -3(5x + 13) = -15x - 39

c. 3(5x - 13) = 15x - 39

d. 3(5x + 13) = 15x + 39

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inn [45]
You should get photo math you can take a picture and it will give you the answer and show you how to solve it
8 0
3 years ago
Tell whether the lines for each pair of questions are parallel or perpendicular or neither y=5/3x+3. 20x+12y=12
disa [49]

neither

• Parallel lines have equal slopes

• The product of perpendicular slopes = - 1

the equation of a line in slope-intercept form is

y = mx + c ( m is the slope and c the y-intercept )

y = \frac{5}{3} x + 3 is in this form

with slope m = \frac{5}{3}

rearrange 20x + 12y = 12 into this form

subtract 20x from both sides

12y = - 20x + 12 ( divide all terms by 12 )

y = - \frac{5}{3} + 1 ← in slope-intercept form

with slope m = - \frac{5}{3}

Neither of the conditions for parallel/ perpendicular slopes are met

Hence the lines are neither parallel/ perpendicular


8 0
3 years ago
11x+4y=-46<br> 7x-4y=10 <br> Find x and y
UNO [17]

Answer:x=-2 y=-6

Step-by-step explanation:

11x+4y=-46..........(1)

7x-4y=10..............(11)

Add (1) and (11)

11x+7x+4y-4y=-46+10

18x=-36

Divide both sides by 18

18x/18=-36/18

x=-2

substitute x=-2 in (11)

7x-4y=10

7(-2)-4y=10

-14-4y=10

Collect like terms

4y=-14-10

4y=-24

Divide both sides by 4

4y/4=-24/4

y=-6

3 0
3 years ago
What are the means and standard deviations for correct answers from attending a review session
Iteru [2.4K]

The mean from attending a review session will be the average of the numbers that are given.

<h3>What is a mean?</h3>

Your information is incomplete. Therefore, an overview will be given. Mean simply means average.

For example, if the given numbers are 2, 4, 6, and 10. The mean will be:

= (2 + 4 + 6 + 10)/4

=22/4

= 5.5

Learn more about mean on:

brainly.com/question/1136789

#SPJ1

7 0
1 year ago
Urgent someone please help! 20 points​
melamori03 [73]
8x-10=3x+90. 8x-3x=90-10. 5x=80. x=16. So angle B is 3*16+90=138° :)
7 0
2 years ago
Read 2 more answers
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