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3 years ago

14

you pour cement in a rectangular region of a square garage. The area of the rectangular region is 112 square feet. What is the a

rea of the garage floor?

1 answer:

Alex_Xolod [135]3 years ago

5 0

Not enough info... Check the problem again.

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2x + y = 8 find four solutions

Tcecarenko [31]

Answer:

see explanation

Step-by-step explanation:

Choose any value for x, substitute into the equation and solve for y, that is

x = - 1

2(- 1) + y = 8

- 2 + y = 8 ( add 2 to both sides )

y = 10

---------

x = 0

2(0) + y = 8

0 + y = 8

y = 8

----------------

x = 1

2(1) + y = 8

2 + y = 8 ( subtract 2 from both sides )

y = 6

---------------

x = 3

2(3) + y = 8

6 + y = 8 ( subtract 6 from both sides )

y = 2

----------------

4 possible solutions are (- 1, 10 ), (0, 8 ), (1, 6 ) and (3, 2 )

6 0

3 years ago

Factor completely 3x 2 + 2xy - y 2

sergij07 [2.7K]

Answer:

Final answer is $(3x-y)(x+y)$ .

Step-by-step explanation:

Given expression is $3x^2+2xy-y^2$ .

Now we need to factor the given expression $3x^2+2xy-y^2$ completely. Let's use factor by grouping method.

$3x^2+2xy-y^2$

$=3x^2+3xy-xy-y^2$

$=3x(x+y)-y(x+y)$

$=(3x-y)(x+y)$

Hence final answer is $(3x-y)(x+y)$ .

5 0

3 years ago

Read 2 more answers

Isabella ran the 100-meter dash five times. The time it took her to complete each race, in seconds, was 12.7, 12.807, 12.78, 12.

Stells [14]

Given:

Number of 100-meter races = 5

The time it took Isabella to complete each race, in seconds, was 12.7, 12.807, 12.78, 12.08, and 12.087.

To find:

The decimals in order from greatest to least.

Solution:

The time it took Isabella to complete each race, in seconds, was shown below:

12.7, 12.807, 12.78, 12.08, 12.087

We need to arrange this data in descending order.

In all 5 numbers the digits before decimals are same. On comparing the digits on the tenth place and hundredth place, we get

12.807 > 12.78 > 12.7 > 12.087 > 12. 08

Therefore, the required order of given data is 12.807, 12.78, 12.7, 12.087, 12. 08.

7 0

3 years ago

Which of the following values is a solution to the inequality? 12 – 5x > -8

olya-2409 [2.1K]

Answer:

x < 4

Step-by-step explanation:

12 – 5x > -8

Subtract 12 from each side

12-12 – 5x > -8-12

-5x> -20

Divide each side by -5, remembering to flip the inequality

-5x/-5 < -20/-5

x < 4

5 0

3 years ago

What is the slope of the line shown?

Papessa [141]

Answer:

The slope of the line shown is 2

4 0

3 years ago