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
gladu [14]
2 years ago
15

If C=r+7 and D=-2r+3, find an expression that equals 2C−D in standard form.

Mathematics
2 answers:
quester [9]2 years ago
6 0
4r+11 is the answer
Serhud [2]2 years ago
5 0

Answer:

\huge\boxed{\boxed{\bf\:4r + 11}}

Step-by-step explanation:

Given,

  • C = r + 7
  • D = - 2r + 3

We need to find the value of 2C - D. To solve this, we need to substitute the values of C & D in the expression.  So,

\tt\:2\:C - D\\\\\sf\:{Substitute \: the \: given \: values}\\\\\tt\:= 2(r + 7) - (-2r + 3)\\\\\sf\:Now, \: follow \: the \: distributive \:property\\\\\tt\:= 2r + 14 + 2r - 3\\\\\sf\:Rearrange\:the\:terms\\\\\tt\:= 2r + 2r + 14 - 3\\\\\sf\:Do \: the \: required \:arithmetic \: operations\\\\=\boxed{ \bf\:4r + 11}

\rule{200}{2}

  • The answer will be <u>4r + 11 </u> in the standard form.

\rule{200}{2}

Hope this helps!

You might be interested in
What is a polynomial function in standard form with zeroes 1, 2, -2. and -3
Juli2301 [7.4K]
<span>A polynomial with the given zeros can be represented as
   f(x) = (x-1)(x-2)(x+2)(x+3).
   Note that if you set f(x) = 0, then 1,2,-2, and -3 certainly are the solutions. From here, we simply multiply/expand out the polynomial. We can do this in a variety of ways, one of which is taking the left two and right two products separately. We have
   (x-1)(x-2) = x^2 - 3x + 2
   and
   (x+2)(x+3) = x^2 + 5x + 6.
   This gives that
   f(x) = (x^2 - 3x + 2) (x^2 + 5x + 6).
   Expanding this expression out then gives us our answer as
    f(x) = x^4 + 2x^3 - 7x^2 - 8x + 12
   or answer choice B.</span>
3 0
4 years ago
How do you do this?? Show all work please
olchik [2.2K]

The answer is every long.

Step-by-step explanation:

as the figure shows

5 0
3 years ago
310-49what does 310 - 49 equal
enot [183]
Really,
310 - 49 = 261

Simple Calculator Calculation
6 0
3 years ago
Read 2 more answers
Sum is 9 product is 8
bekas [8.4K]
The answer is eight and one.
Sum: 8 + 1=9
Product:8*1=8
5 0
3 years ago
Read 2 more answers
Using an ideal machine a worker exerts an effort force of 8.00 N to life a 2.95 kg weight a distance of 6:00 am over what distan
cestrela7 [59]

Answer:

29.5 ×6= 8×d

d = 29.5×6/8 = 22.12 m

3 0
3 years ago
Other questions:
  • How far apart is 37 and 17 remember their positives
    12·2 answers
  • A jar contains only black and white marbles. When one marble is drawn at random, the probability that it is white is 1/3. After
    6·1 answer
  • The value of y varies directly with x, and y=3 when x=9 find y when x = 21
    8·1 answer
  • Need an answer thanks
    8·1 answer
  • Which equation represents the scentence.
    5·1 answer
  • What is the variable for -7.8 = 4.4 + 2r
    15·1 answer
  • What way would arrow go???
    10·2 answers
  • Complete the division problem by determining the number that should be placed in the box.
    6·1 answer
  • Help me please asap due tomorrow​
    7·1 answer
  • Find the area of the shape below
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!