All categories

2 years ago

Why is division by zero not allowed? Explain using your knowledge of how division is related to subtraction.

1 answer:

4 0

Division by zero is an operation for which you cannot find an answer, so it is disallowed. You can understand why if you think about how division and multiplication are related. But no value would work for x because 0 times any number is 0. So division by zero doesn't work.

- R3KTFORGOOD ☕

You might be interested in

What is the proportion for x

Artist 52 [7]

12x15=18(3x+4)
180=54x+72
-72 -72
108=54x
/54 /54
2=x

X=2 the other person is a d0uche for answering like that so I answered instead of them

8 0

2 years ago

Solve using completing the square x^2 – 8x + 16 = 25

lisov135 [29]

First we need to factor the left side. Since it is a perfect square (as is the process with completing the square, we know we can take half of the middle number along with x to be in the two parenthesis.

(x - 4)(x - 4) = 25

Now we simplify to show it as a square.

(x - 4)^2 = 25

Next we take the square root of both sides

x - 4 = +/- 5

Note that we have plus or minus 5. This is because either square would give us positive 25. Now we add 4 to both sides

x = 4 +/- 5

4 + 5 = 9

4 - 5 = -1

5 0

2 years ago

The mean and standard deviation of a normal distribution are 150 and 12 respectively. What percentage of values lie between:

Semenov [28]

Answer:

Step-by-step explanation:

Use a calculator with built-in statistical functions. The function applying here is normcdf(, the "cumulative density function."

(a) The percentage of values lying between 138 and 162 is

norm(138,162, 150, 12), which comes out to 0.683, or 68.3%.

(b) Find norm(126, 174, 150,12): 0.945, or 94.5%

(d) Find norm(162, 174,150,12): 0.136, or 13.6%

8 0

2 years ago

Read 2 more answers

Which two operation are on the same level within the order of operations, meaning that neither has a preference over the other ?

MAXImum [283]

Answer:

Addition and Subtracttion

Step-by-step explanation:

The order of operations has to with a generally accepted order to follow when evaluating a mathematical expression.

PEDMAS or BODMAS is the order of operations to follow.

The two operations that are on the same level within the order of operations are addition and subtracttion

This means that, neither has a preference over the other.

6 0

2 years ago

write a equation in slope-intercept form for the line that is parallel to y=2x-8 and passes through the point(1,5).

Brilliant_brown [7]

Answer:

y = 2x + 3

Step-by-step explanation:

y = 2x - 8 passes through ( 1,5 )

y = 2x + 3 is parallel to y = 2x - 8 because it has the same m( 2x)

and it also passes through ( 1, 5 )

Try Desmos, very helpful

Hope this helps

7 0

2 years ago