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3 years ago

HELP!!!! Which system of Linear inequalities is graphed?

Mathematics

2 answers:

wariber [46]3 years ago

5 0

It is the tyhird one

zzz [600]3 years ago

3 0

x < -2 and y ≤ -x -2

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The radius of a circle is 2 millimeters. What is the circle's area?

mote1985 [20]

Answer:

12.56 mm²

Step-by-step explanation:

$A=\pi r^{2}$

Plug the given values into the area equation

$A=3.14*2^{2}\\A=3.14*4\\A=12.56$

Therefore, the area of the circle is 12.56 mm².

I hope this helps!

6 0

3 years ago

You and another person are sunbathing on the beach near a lifeguard station. The other person chooses a spot that is the same di

Schach [20]

Answer: 26.8 feet

Step-by-step explanation:

In the figure attached you can see two right triangles triangle ABD and a triangle ACD.

You are located at point B and the other person at point C.

The approximate height of the lifeguard station is x.

Keep on mind that:

$tan\alpha=\frac{opposite}{adjacent}$

Therefore:

For the triangle ABD:

$tan(36\°)=\frac{x}{DC+11}$ [EQUATION 1]

For the triangle ACD:

$tan(46\°)=\frac{x}{DC}$ [EQUATION 2]

Solve from DC from [EQUATION 2]:

$DC=\frac{x}{tan(46\°)}$

Substitute into [EQUATION 1] and solve for x:

$tan(36\°)=\frac{x}{(\frac{x}{tan(46\°)}+11)}\\tan(36\°)(\frac{x}{tan(46\°)}+11)=x\\11*tan(36\°)=x-\frac{xtan(36\°)}{tan(46\°)}\\7.991=0.298x$

$x=26.81ft$ ≈26.8ft

7 0

2 years ago

List the domain and range of the relation. (5,- 9), (7,7), (0, -9), (7.1) (5,9)

nalin [4]

Answer:

Domain={ 5,7,0,}

Rang=={-9,7,1,9}

7 0

2 years ago

What is scientific notation?

Montano1993 [528]

An expression to represent a decimal between 1 and 10 multiplied by ten. basically to write larger numbers with less digits.
ex . 100 = 1 x 10^2
ex. 4321= 4.321 x 10^3

7 0

3 years ago

Read 2 more answers

3x-2y=2 i always get mixed up in the final answer y=1 -3/2x 0r y= 1 +-3/2x ?

marishachu [46]

Answer:

Both answers are correct

Step-by-step explanation:

both y = 1 - 3/2x and y = 1 + -3/2x are correct answers, it is just that y= 1 - 3/2x is the simpler version. Adding a negative number is the same as subtracting a positive.

5 0

3 years ago

Read 2 more answers