Afla valoarea lu a:7×a=8×10-31

Answers

Answer 1

Answer: 7 x a = 8 x 10 - 31
7 x a = 80 - 31
7 x a = 49
a = 49/7
a = 7

Answer 2

Answer: 7*a = 8*10 - 31. We perform the multiplication first.

7a = 80 - 31

7a = 49

a = 49/7

a = 7

lu a = 7

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write a compound inequality that represents each situations all real numbers that are greater than -8 but less than 8

Answers

Answer:

-8 < r < 8

Step-by-step explanation:

Let r = real number

Greater than >

r>-8

less than <

r <8

We want a compound inequality so we combine these

-8 < r < 8

Answer:

$-8 < x < 8$

Step-by-step explanation:

Your compound inequality will include two inequalities.

These are:

x > -8

x < 8

Put your lowest number first, ensuring that your sign is pointed in the correct direction.

$-8 < x$

Next, enter your higher number, again making sure that your sign is pointing in the correct direction.

$-8 < x < 8$

Line j and Line k are parallel lines that have been rotated about the origin. The resulting images are shown as j' and k'. How can you describe j' and k'?A) Skew lines

B) Parallel lines

C) Horizontal lines

D) Intersecting lines

Answers

Answer:

B) Parallel lines

Step-by-step explanation:

the lines are parallel because the lines don't cross each other and are straight up and down.

skew line- a line on a shape that is not parallel and does not intersect.

parallel- when lines are straight up and down and don't cross each other. example ||

horizontal- when lines are straight left to right and don't cross each other. example =

intersecting- when lines cross each other.

What are the coordinates of point P?

Answers

On this graph, coordinate P lies 2 units to the left of the center. The side-to-side movement of a point on a coordinate plane is called movement on the x-axis, and since it is 2 units to the left of the center, it is called -2. All units to the left of the zero point (middle of the graph) is counted in negative numbers.
Coordinate P also lies 4 units down from the center. Movement up and down the graph is called movement on the y-axis, and since it is 4 units below the center, it is called -4. All units below 0 on the y-axis are counted in negative numbers.
To assemble our coordinates, we just have to remember the format for coordinates on a plane, which is (x, y). The value of the point's position on the x-axis always comes first, followed by its position on the y-axis. In this case, the finished coordinate would be (-2, -4).
Hope that helped! =)

Answer:

(-2, -4)

Step-by-step explanation:

A restaurant has square dining tables.they will place table settings on each table so that there is a distance of 2 feet from each corner to a table setting. The 3 table settings on each side will be 3 feet apart. What is the perimeter of one table?

Answers

Answer:

Perimeter = 12ft

Step-by-step explanation:

Given that the distance between the table and each corner of the table setting is 2feets it implies the table settings is place at the center of each table.

Since the table settings is at the center of the table and each table settings are 3feets apart, it implies that distance from table setting to the end of the table will be 3ft/2 = 1.5ft

If half length of the table is 1.5ft

Length = 2 x 1.5ft = 3ft

Formular for perimeter of a square = 4L

Perimeter = 4 x 3 = 12ft

See attachment for diagram.

9 OK there you go
if you don't think this is correct then ask someone else

You begin solving the equation 4 – 5x = 59 by subtracting 4 from both sides. Which is the best choice for Step 2?