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3 years ago

Which expression correctly shows the difference between the product of 11 and 7 and the sum of 6 and 10?

Mathematics

1 answer:

Minchanka [31]3 years ago

5 0

9514 1404 393

Answer:

d: (11×7) - (6 + 10)

Step-by-step explanation:

"the product of 11 and 7" is 11×7.

"the sum of 6 and 10" is (6 +10).

The difference between the product and the sum is ...

(11×7) -(6 +10) . . . . . matches choice D

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Two trains, Train A and Train B, weigh a total of 207 tons. Train A is heavier than Train B. The difference of their weights

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A) 184.5 B)22.5

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3 years ago

I need help REALLY FAST what is the distance between the points (-1, -3 3/4) and (-1, 4 1/2) ?

kodGreya [7K]

Answer:

8 1/4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)

Algebra II

Distance Formula: $\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Identify

Point (-1, -3.75)

Point (-1, 4.5)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formula]: $\displaystyle d = \sqrt{(-1--1)^2+(4.5--3.75)^2}$
[√Radical] (Parenthesis) Subtract: $\displaystyle d = \sqrt{(0)^2+(8.25)^2}$
[√Radical] Evaluate exponents: $\displaystyle d = \sqrt{0+68.0625}$
[√Radical] Add: $\displaystyle d = \sqrt{68.0625}$
[√Radical] Evaluate: $\displaystyle d = 8.25$

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3 years ago