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3 years ago

Six times a number minus four is two times a number more than four.

Mathematics

2 answers:

Pie3 years ago

8 0

Answer:

the equation in numbers looks like this: 6xK-4=2xK+4 and if you are solving this equation it is equal to 0

Step-by-step explanation:

to get to 0 you first need to cancel out the equal terms on both sides so it should look like this: 6K=2K

then you move the variable to the left hand side and change its sign so it should look like this:6K-2K=0

then you collect the like terms so it should look like this: 4K=0

and then you divide both sides by 4 and it should get you K=0

ivann1987 [24]3 years ago

4 0

Answer:

negative fourteen I THINK I DONT KNOW FOR SURE

Step-by-step explanation:

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Simplify by combining like terms. 8x + 9 - 4x + 12

denpristay [2]

4x+21 I think I’m not sure.

3 0

3 years ago

Find the area of the trapezoid.

antoniya [11.8K]

Answer:

78 ft squared

Step-by-step explanation:

To find the area of trapezoid, we could use this formula:

.5*height*(sum of bases)

We know both the base lengths. They are 10 and 16 ft.

The height can be found by looking at that right triangle whose base is (16-10) ft or 6 ft.

So we want to find the height which is opposite the 45 degree angle and we have the adjacent side's measurement of 6ft.

This has the tangent ratio written all over it since tangent of an angle is opposite side's measurement over adjacent side's measurement.

tan(45)=height/6

1=height/6

6=height

6ft=height

The answer is:

.5*height*(sum of bases)

.5*6 ft*(10 ft+16 ft)

3 ft(26 ft)

78 ft squared

Note: That one right triangle is an isosceles right triangle so we didn't need trigonometry.

5 0

3 years ago

MORE HELP :( acellus work

Ivenika [448]

A triangle is a plane shape bounded by three straight sides, thus it has three internal angles. Therefore, the required values are:

i. x = $40^{o}$

ii. y = $120^{o}$

A plane shape is a figure bounded by straight sides. Examples are triangles, squares, rectangles, rhombus, kite, trapezium, etc. A triangle is an example of a plane shape that has three sides, thus three angles. also, the sum of angles in a given triangle is $180^{o}$ .

Thus the required values of x and y can be determined as follows:

x + 20 + 120 = $180^{o}$

x + 140 = $180^{o}$

x = $180^{o}$ - 140

So that,

x = $40^{o}$

Thus,

y = 20 + 120 (the sum of opposite angles is equal to an exterior angle.)

= $120^{o}$

Therefore, x = $40^{o}$ and y = $120^{o}$

For more clafifications on sum of angles in a traingle, visit: brainly.com/question/21680544

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7 0

2 years ago

NO LINKS plz help

Natali5045456 [20]

Answer:

14.4

Step-by-step explanation:

16^2 - 7^2 = root of 207

7 0

3 years ago

(6x - 3y) -2(x + 4y)

bezimeni [28]

Answer:

4x-11y

Step-by-step explanation:

6 0

3 years ago

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