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
riadik2000 [5.3K]
3 years ago
7

Write an equivalent equation by combining like terms. ​6a + 5 + 2a - 4

Mathematics
1 answer:
Otrada [13]3 years ago
6 0
8a+1
Hope that helps:p
You might be interested in
Use the grid to create a model to solve the percent problem.
Delicious77 [7]
For this case we can make the following rule of three:
 21 ------> 70%
 x --------> 100%
 Clearing x we have:
 x = (100/70) * (21)
 Rewriting we have:
 x = (10/7) * (21)
 x = 30
 Thus,
 21 is 70% of 30
 Answer:
 
21 is 70% of 30
6 0
3 years ago
What is the mathematical relationship between the atomic radius (r) and the lattice parameter (a0) in the BCC structure? a. b. c
ryzh [129]

Answer: Lattice parameter, a = (4R)/(√3)

Step-by-step explanation:

The typical arrangement of atoms in a unit cell of BCC is shown in the first attachment.

The second attachment shows how to obtain the value of the diagonal of the base of the unit cell.

If the diagonal of the base of the unit cell = x

(a^2) + (a^2) = (x^2)

x = a(√2)

Then, diagonal across the unit cell (a cube) makes a right angled triangle with one side of the unit cell & the diagonal on the base of the unit cell.

Let the diagonal across the cube be y

Pythagoras theorem,

(a^2) + ((a(√2))^2) = (y^2)

(a^2) + 2(a^2) = (y^2) = 3(a^2)

y = a√3

But the diagonal through the cube = 4R (evident from the image in the first attachment)

y = 4R = a√3

a = (4R)/(√3)

QED!!!

8 0
3 years ago
Read 2 more answers
I NEEEED HELP!!! please show work in answer and no blank or nonsense answers please :)
rodikova [14]

Answer:

225 pi = pi r^2 h

225 = r^2*h

225/1 = r^2

sqrt. (225) = r

r = 15

8 0
3 years ago
Find the product ( x ≠ ? )
dsp73

Answer:

-3

Step-by-step explanation:

if x= -3

the denominator becomes 0 and the fraction becomes undefined.

8 0
3 years ago
Which of the following is(are) the solution(s) to |5x+2|=8 ?
slega [8]

Answer:

x = 6/5 or x = -2

Step-by-step explanation:

We need to solve:

|5x+2|=8

We know that |u|=a the u = a and u = -a

Now solving:

|5x+2|=8

5x +2 = 8 or 5x +2 = -8

5x = 8-2 or 5x = -8-2

5x = 6 or 5x = -10

x = 6/5 or x = -10/5

x = 6/5 or x = -2

So, x = 6/5 or x = -2

7 0
3 years ago
Read 2 more answers
Other questions:
  • What undefined terms are needed to define a line segment?
    7·1 answer
  • 2. A guy wire for a tree is 20 ft. long, making a 21o angle with the ground. How far is the base of the tree from a stake anchor
    9·1 answer
  • A sphere has a diameter of 8cm. Which statements about the sphere are true? Check all that apply.
    8·1 answer
  • Find the missing terms in the following geometric sequence. 12,_,_,324
    11·2 answers
  • 2cos(3pi/4) – 4 sin(7pi/6)
    10·1 answer
  • Find the coordinates on f the point where y-4x=1 crosses the axis
    8·1 answer
  • 6) In 3 seconds you can fill up a pool with 42 gallons of water. If this is a proportional
    6·1 answer
  • A person can pay $6 for a membership to the science museum and then go to the museum
    15·1 answer
  • 8 1/3 times 4 1/5 = ?
    12·2 answers
  • Answer ASAP for brainly
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!