1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ede4ka [16]
3 years ago
13

Combine the like terms to create an equivalent expression: r+(−5r)

Mathematics
1 answer:
nevsk [136]3 years ago
8 0

Answer:

-4r

Step-by-step explanation:

Since r and -5r both have the same variable, we can combine them

r-5r = -4r

r+(−5r) = -4r

You might be interested in
Identify the polygon using as many names as possible
ollegr [7]
A to line b
b to line c
c to line d
d to line e 
e to line a
6 0
2 years ago
What is the slope line perpendicular to the equation 4x+3y=9
aleksandrvk [35]

Answer:

m=3/4

Step-by-step explanation:

first, let's put the line 4x+3y=9 from standard form (ax+by=c) into slope-intercept form (y=mx+b)

we have the equation 4x+3y=9

subtract 4x from both sides

3y=-4x+9

divide by 3

y=-4/3x+3

perpendicular lines have slopes that are negative and reciprocal. If the slopes are multiplied together, the result is -1

so to find the slope of the line perpendicular to the line y=-4/3x+3, we can take the slope of y=-4/3x+3 (-4/3) multiply it by a variable (this is our unknown value), and have that set to -1

(m is the slope value)

-4/3m=-1

multiply by -3/4

m=3/4

therefore the slope of the perpendicular line is 3/4

hope this helps!! :)

7 0
3 years ago
Find the derivative of f(x) = 8x^2 + 11x at x = 7.
sleet_krkn [62]
Thank you for posting your question here at brainly. Feel free to ask more questions.  

f′(x)=2∗(8x(2−1))+1∗11x(1−1)

which is

f′(x)=16x+11

then let x = 7 gives us

f′(7)=123

      <span>
<span>Hope my answer would be a great help for you. </span> </span>  

<span> </span>

6 0
3 years ago
HELP PLEASEEE!!!
kodGreya [7K]

Answer: The correct answers are $45.15, $247.25 and $129

Step-by-step explanation:

In order to solve the problems you need to multiply each percentage by his gross monthly pay.

$2,150 x .021 = $45.15

$2,150 x .115 = $247.25

$2,150 x .06 = $129

4 0
2 years ago
an item is regularly priced $70. it is now priced at a discount of 20% off the regular price. what is the price now?
AVprozaik [17]
The price now is (80/100)x70 = (5600/100) = $56;
8 0
3 years ago
Other questions:
  • A property had a list price of $164,000, an actual sale price of $158,000 and a $124,000 loan. If the transfer fee was $3 per $1
    8·1 answer
  • Ms wang is 23 years older than her daughter. In 5 years, their ages will total 63. How old are they now?
    11·1 answer
  • Please solve it the answer is (a+b-2) (a-b+2) should be take out question a^2-b^2+4b-4
    12·2 answers
  • PLEASE HURRY <br> Quadrilateral ABCD is inscribed in OZ such that AB | DC and Find m
    7·1 answer
  • write an equation of a line that is perpendicular to the given line and that passes through the given point (4,-6); m=3/5
    12·1 answer
  • What are the coefficients of -4x - 7y + 21z?
    5·2 answers
  • Why does (-5) (-5) (-5) have a negative product?
    6·1 answer
  • What is the area this trapezoid?
    5·2 answers
  • Order the number \pi ,3, and \sqrt(11 )from least to greatest
    7·1 answer
  • Find the values of m and c if the straight line y=mx+c passes through the point (-2,5) and has a gradient of 4.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!