<span>An ionic crystal consists of ions bound together by electrostatic attraction. The arrangement of ions in a regular, geometric structure is called a crystal lattice. Examples of such crystals are the alkali halides, which include: potassium fluoride (KF)</span>
Answer: 2/9 divided by 7/9 = 2/7
Step-by-step explanation:
1. Write out the problem on a piece of paper.
2. Change the second fraction, which is 7/9, into a reciprocal fraction (means flipping the 7 and 9 around). Now, our equation has the fraction 9/7 in it.
3. Change the division symbol to a multiplication symbol. Your equation should be 2/9 x 9/7.
4. Solve the equation. You should get the answer of 18/63 without simplification.
5. Simplify. 18/63 = 2/7
Conclusion: 2/7 is the correct answer.
Step 1: Locate and underline the tenth place (4) and look to the right (8)
1.48
Step 2: In this case, the digit to the right 8 is 5 or above. So, we add 1 to the tenth place 4. The digit at the right 8 becomes 0, thus we get 1.5 as the answer.
In short: 1.48 rounded to the nearest tenth is 1.5.
Hope that helped
Answer:
The Answer is P = (-2.5 , 1 )
Step-by-step explanation:
Let, the point is P(x,y)
then, 
=>
∴
Again, 
=>
∴
Thus, P = (-2.5 , 1 )
9514 1404 393
Answer:
y -4 = -2(x -(-11))
Step-by-step explanation:
The point slope formula is ...
y -k = m(x -h) . . . . . line with slope m through point (h, k)
__
So, the boxes in order from left to right are k, m, h.
The problem statement tells you the point is (-11, 4), so h = -11, k = 4. It also tells you the slope is -2, so m = -2.
Putting these numbers in the required order, we have k = 4, m = -2, h = -11 and the equation of the line is ...
