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UNO [17]
3 years ago
13

Is order of operations and number of operations the same thing?

Mathematics
2 answers:
KonstantinChe [14]3 years ago
7 0
No order of operations is what you might know as Pemdas ,number of Operations is something iv'e never heard of.
Schach [20]3 years ago
4 0

Answer:

<em>No. </em>

Step-by-step explanation:

Because the order of operations stands for parenthesis, exponents, multiply, divide, add, and subtract from left to right.

Examples: 12+9*8÷2

Multiply and divide numbers from left to right.

\displaystyle 9\times8\div2

\displaystyle 9\times8=72

\displaystyle 72\div2=36

\displaystyle 36+12

Add numbers from left to right.

\displaystyle 36+12=48

\huge \boxed{48}, which is our answer.

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Why is the rise the value for the numerator and the run the value for the denominator?
julsineya [31]
Because change in y for the rise is if it goes up or down and change in x for the run to see if it goes left or right
3 0
3 years ago
A cyclist rides his bike at a rate of 10 kilometers per hour. What is this rate in miles per hour. How many miles will the cycli
poizon [28]

Answer:

10 km/ hour = 6.25 miles/ hour

Step-by-step explanation:

cyclist travel in 5 hours = 6.25 x 5 = 31.25 miles

8 0
3 years ago
Which equation represents the line that passes through the points (-3, 7) and (9,-1)? oy--3x+5 o y=-x-7 o y=zx-7 oy - 12 2x+5​
nekit [7.7K]

Answer:

use the slope equation (y2-y1) / (x2 -x1). plug in values and solve

(-1 -7) / (9 -(-3)) (subtracting a negative is the same as adding a positive)

-8 / 12 (simplify)

m = -2/3

then, plug in one of the points and the slope into the slope-point equation.

(y - y1) = m (x - x1) (the point-slope form)

y - 7 = -2/3( x - (-3)) (plug in the slope and point 1 values, then solve)

y - 7 = -2/3x - 2 (add 7 to both sides)

y = 2/3x +5 (the answer)

Step-by-step explanation:

I hope this helps :))

4 0
3 years ago
(Y+9)x2=42 find the cross products
sveta [45]
2y+18=42
2y=24
y=12
Hope this helps!
8 0
3 years ago
If AE=6x-55 and EC=3x-16, find DB. (Hint: Find x first and then substitute.)
erica [24]

<u>Given</u>:

Given that ABCD is a rectangle.

The diagonals of the rectangle are AC and DB.

The length of AE is (6x -55)

The length of EC is (3x - 16)

We need to determine the length of the diagonal DB.

<u>Value of x:</u>

The value of x can be determined by equating AE and EC

Thus, we have;

AE=EC

Substituting the values, we get;

6x-55=3x-16

3x-55=-16

       3x=39

         x=13

Thus, the value of x is 13.

<u>Length of AC:</u>

Length of AE = 6(13)-55=78-55=23

Length of EC = 3(13)-16=39-16=23

Thus, the length of AC can be determined by adding the lengths of AE and EC.

Thus, we have;

AC=AE+EC

AC=23+23

AC=46

Thus, the length of AC is 46.

<u>Length of DB:</u>

Since, the diagonals AC and DB are perpendicular to each other, then their lengths are congruent.

Hence, we have;

AC=DB

 46=DB

Thus, the length of DB is 46.

6 0
3 years ago
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