Answer:
Number of student of 7th grade using computer = 21
Total number of 8th grader student surveyed = 97
Step-by-step explanation:
The complete question is attached herewith
Solution
As we can see in the table
Total number of 7th grader student = 74
Out of these 74 student, 53 use cell phone
Hence, the number of student of 7th grade using computer = 74-53 = 21
Like wise, total number of 8th grader student surveyed = 59 +38 = 97
Answer:
68.75 Percent
Step-by-step explanation:
11/16 =0.6875
0.6875 into percent is 68.75
Answer:
Step-by-step explanation:
Let's take for example the first one Al(C2H2O2)
If there is no subscript under the number, the amount of atoms is 1
If we have a subscript, as in this case, the subscript is the number of atoms.
In the example above, there is 1 atom of Aluminium, two of Carbon, two of Hydrogen and 2 of Oxygen. If you have parenthesis and number before them, e.g., 4(Al2O3), you just multiply the parenthesis by the number in front of them, which means 4*2=8 aluminium atoms, 3*4=12 oxygen atoms, the same applies if the number is subscript behind the parenthesis like in fourth example.
Answer:
80 ounces
Step-by-step explanation:
There are 16 ounces in a pound. So to convert from pounds to ounces, you multiply 5 by 16, which is 80.
Complete the square for the given equation
x² - 2x + ____ + y² - 2y + _____ = 98
x² - 2x + (1) + y² - 2y + (1) = 98 + (1) + (1)
(x - 1)² + (x - 1)² = 100
(x - 1)² + (x - 1)² = 10²
Now the equation is in the form (x - h)² + (y - k)² = r²
Radius = 10
