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3 years ago

What are two values for x?|x|=5

Mathematics

2 answers:

storchak [24]3 years ago

8 0

Answer:

-5 and 5

Step-by-step explanation:

the lines around the x tell you that even if its a negative, It has to become a positive. And if its already a positive, then it stays a positive.

yuradex [85]3 years ago

7 0

Answer:

1 and -5

Step-by-step explanation:

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The area of a square is 49 cm^2. What is the perimeter, in cm, of the square?

rewona [7]

Answer:

P = 28 cm

Step-by-step explanation:

The area of a square is

A = s^2 where s is the side length

49 = s^2

Taking the square root of each side

sqrt(49) = sqrt(s^2)

7 =s

Now find the perimeter of the square

P = 4s

P = 4(7)

P = 28 cm

6 0

3 years ago

Read 2 more answers

From a point A that is 8.20 m above level ground, the angle of elevation of the top of a building s 31 deg 20 min and the angle

Mariulka [41]

Answer:

30.11 meters ( approx )

Step-by-step explanation:

Let x be the distance of a point P ( lies on the building ) from the top of the building such that AP is perpendicular to the building and y be the distance of the building from point A, ( shown in the below diagram )

Given,

Point A is 8.20 m above level ground,

So, the height of the building = ( x + 8.20 ) meters,

Now, 1 degree = 60 minutes,

⇒ $1\text{ minute } =\frac{1}{60}\text{ degree }$

$20\text{ minutes }=\frac{20}{60}=\frac{1}{3}\text{ degree}$

$50\text{ minutes }=\frac{50}{60}=\frac{5}{6}\text{ degree}$

By the below diagram,

$tan ( 12^{\circ} 50') = \frac{8.20}{y}$

$tan(12+\frac{5}{6})^{\circ}=\frac{8.20}{y}$

$tan (\frac{77}{6})^{\circ}=\frac{8.20}{y}$

$\implies y=\frac{8.20}{tan (\frac{77}{6})^{\circ}}$

Now, again by the below diagram,

$tan (31^{\circ}20')=\frac{x}{y}$

$tan(31+\frac{1}{3})=\frac{x}{y}$

$\implies x=y\times tan(\frac{94}{3})=\frac{8.20}{tan (\frac{77}{6})^{\circ}}\times tan(\frac{94}{3})^{\circ}=21.9142943216\approx 21.91$

Hence, the height of the building = x + 8.20 = 30.11 meters (approx)

8 0

3 years ago

What does this equal? 2(x-5)-3(4x-2)=6

joja [24]

2x - 10 -12x + 6 = 6

-10x -4 = 6

-10x = 10

-x = 1

x = -1

3 0

3 years ago

Read 2 more answers

What is the value of x in the equation 6(x +11)= -300?

Kay [80]

Answer:

-61

Step-by-step explanation:

We use the distributive property to distribute 6 to both x and 11. This gives 6x+66=-300. Subtracting both sides by 66 gives 6x=-366. Dividing both sides gives x=-61.

8 0

3 years ago

What is the midpoint of AB?

Lana71 [14]

Answer:

the answer is 0

Step-by-step explanation:

just count from -6 all the way to 8 then you will find out that the there are 15 numbers from point a to point b then count from both sides the center

6 0

2 years ago