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
-BARSIC- [3]
3 years ago
9

(2b + 3r) + (4b+ r)

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
4 0
Let's simplify step-by-step. 
<span><span><span><span>2b</span>+<span>3r</span></span>+<span>4b</span></span>+r</span>

Combine Like Terms: 
<span>=<span><span><span><span>2b</span>+<span>3r</span></span>+<span>4b</span></span>+r
</span></span><span>=<span><span>(<span><span>2b</span>+<span>4b</span></span>)</span>+<span>(<span><span>3r</span>+r</span>)
</span></span></span><span>=<span><span>6b</span>+<span>4r</span></span></span>

Answer:<span>=<span><span>6b</span>+<span>4<span>r</span></span></span></span>
You might be interested in
H(x) = 5х+2.0х 3 - 45х-180х.<br> factor the polynomial
poizon [28]
The correct answer is 2x^3-40x-180
4 0
3 years ago
I give brainliest. please help.
hoa [83]

Answer:

x2 y1, x4 y2, x6 y3, x8 y4

Step-by-step explanation:

You have to double the x for each y

4 0
3 years ago
Read 2 more answers
At what angle does a diffraction grating produce a second-order maximum for light having a first-order maximum at 20.0 degrees?
hichkok12 [17]

Answer:

At 43.2°.

Step-by-step explanation:

To find the angle we need to use the following equation:

d*sin(\theta) = m\lambda

Where:

d: is the separation of the grating

m: is the order of the maximum

λ: is the wavelength

θ: is the angle              

At the first-order maximum (m=1) at 20.0 degrees we have:

\frac{\lambda}{d} = \frac{sin(\theta)}{m} = \frac{sin(20.0)}{1} = 0.342

Now, to produce a second-order maximum (m=2) the angle must be:

sin(\theta) = \frac{\lambda}{d}*m

\theta = arcsin(\frac{\lambda}{d}*m) = arcsin(0.342*2) = 43.2 ^{\circ}

Therefore, the diffraction grating will produce a second-order maximum for the light at 43.2°.    

I hope it helps you!                                                        

6 0
3 years ago
Please help me with this
Dmitriy789 [7]

Answer:

7

Step-by-step explanation:

sqrt(49)

What number times itself = 49

7*7 = 49

and

-7*-7 = 49

Given the choices  choose 7

3 0
3 years ago
Read 2 more answers
Joe plans to buy a pair of golf shoes. The original price of the pair Joe wants is $75, but they are now on sale for 20% off. Wh
nordsb [41]
Answer is D. $60.00 I believe
5 0
3 years ago
Read 2 more answers
Other questions:
  • Y=3x+7<br> Y=-7x-4<br> Solve the system
    14·2 answers
  • The masses of four objects were measured during a physics experiment. The first and the last each had a mass of 41.918 g. The se
    13·2 answers
  • An empty 6-gal water jug weighs 0.5 lb. With 3 c of water inside, the jug weighs 2 lb. Which equation models the jug’s weight y
    14·2 answers
  • Given the equation 2x +4 = 4x -2, select the reasoning that correctly solves for x.
    15·2 answers
  • What times what equals 200.
    11·2 answers
  • M + 4= –12 Step by step
    9·2 answers
  • If 3x+2=7x then what is x​
    11·1 answer
  • Which of these are polygons?<br> On<br> А<br> B<br> o<br> D<br> F<br> G<br> G
    7·2 answers
  • Identify the constants in the expression: 7-5x+1?For 6th grade.
    6·1 answer
  • Fabiana is going to construct a rectangular metal box with a volume of 150 in.. Her box will have a length of 2 inches, a width
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!