3 years ago

What does x stand for in 4+x=3x

1 answer:

7 0

x stands for a variable, in which the variable would be replaced by a number(s) that would make the equation true.

Hope this helps

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........ help ASAP please....

Anna11 [10]

Answer:

See below

Step-by-step explanation:

In the second step there should be (1 - cot x) instead of (1 + cot x)

(1 + tan x) [1 + cot(-x)]

= (1 + tan x) (1 - cot x)

= 1 - cot x + tan x - tan x cot x

= 1 - cot x + tan x - 1

= tan x - cot x

3 0

3 years ago

Please help me i’ll give extra points.

maksim [4K]

Answer:

Step-by-step explanation:

6 0

3 years ago

How to calculate the are of a pentagon?

ale4655 [162]

Sort the pentagon into 5 triangles and then solve for each one

5 0

3 years ago

Solve: 3(-x+2) < 15 A X>7 B x < 3 C x<-> D x>-3

sukhopar [10]

Answer:

D x>-3

Step-by-step explanation:

3(-x+2) < 15

-3x + 6< 15 (Subtract 6 from both sides)

-3x < 9 (Divide 3 on both sides)

x>-3 (Flip the inequality because the variable was negative)

7 0

3 years ago

(a) use the pythagorean theorem to determine the length of the unknown side of the triangle, (b) determine the perimeter of the

ki77a [65]

Answer/Step-by-step explanation:

a. Unknown side, b, using the Pythagorean theorem is solved as shown below.

$b^2 = c^2 - a^2$

$b^2 = 45^2 - 27^2$

$b^2 = 1,296$

$b = \sqrt{1,296}$

$b = 36$

Unknown side, b, = 36 km

b. Perimeter of the triangle = sum of all the sides of the ∆ = $36 + 45 + 27$

$perimeter = 108 km$

c. Area of triangle = ½*base*height

where,

Base = 36 km

Height = 27 km

$Area = \frac{1}{2}*36*27$

$Area = 18*27$

$Area = 486 km^2$

7 0

3 years ago