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densk [106]
3 years ago
14

|x+2|-3=9 please help!!! Solve twice!!! Two answers!!!

Mathematics
2 answers:
Over [174]3 years ago
6 0
×= 10 and ×= -14

Find x by simplifying both sides of the equation then isolate the variable.
Solnce55 [7]3 years ago
6 0

|x+2| - 3 = 9

Option 1:

x + 2 - 3 = 9

x - 1 = 9   <em>  add 1</em>

x = 9 + 1

x = 10

Option 2:

-(x+2) - 3 = 9  <em>Distribute "-" through the parenthesis </em>

-x - 2 - 3 = 9

-x - 5 = 9     <em>Add 5</em>

-x = 9 + 5

-x = 14   <em>Multiply by -1</em>

x = -14

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adelina 88 [10]

Answer:

square: (9x^8)^2= 81x^16

square root: (9x^8)^1/2 = 3x^4

Step-by-step explanation:

the ^ mean that the following num should be like this ​⁸​

8 0
3 years ago
Tara standing 20 feet from a tree and the angle of elevation is 72°. About how tall is the tree?
Zinaida [17]

Answer:

Approx 61.554 feet

Step-by-step explanation:

Since we are dealing with the opposite and adjacent sides, we will use tangent as our ratio.

Since the angle of elevation is 72 degrees, the left side of our equation is tan(72).

The right side of the equation is opposite over adjacent.

x/20

Set these equal to each other.

tan(72) = x/20

Simplify.

20 tan(72)=x

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x is approximately 61.554.

4 0
3 years ago
Worth 35 points<br><br>plz help me? what is the value of y? plz explain
Kay [80]

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6 0
3 years ago
Read 2 more answers
An athletic facility is building an indoor track. The track is composed of a rectangle and two semicircles.
Mazyrski [523]

Answer:

(The image is not provided, so i draw an idea of how i supposed that the problem is, the image is at the bottom)

Ok, we have a rectangle of length x by r.

At the extremes of length r, we add two semicircles.

So the perimeter will be equal to:

Two times x, plus the perimeter of the two semicircles (that can be thought as only one circle).

The radius of the semicircles is r, and the perimeter of a circle is:

C = 2*pi*r

where pi = 3.14

Then the perimeter of the track is:

P = 2*x + 2*pi*r.

b) now we want to solve this for x, this means isolating x in one side of the equation.

P - 2*pi*r = 2*x

P/2 - pi*r = x.

c) now we have:

P = 660ft

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then we can replace the values and find x.

x = 660ft/2 - 3.14*50ft = 173ft

5 0
3 years ago
Circle O has tangent AB and secant AC as shown. arc BC measures 4x+2-. arc BE measures 2x-10. What is the measure of arc CB
dangina [55]

Answer:

b. 160°

Step-by-step explanation:

angle A = (far arc - near arc)/2

far arc is  arc BC and near arc is arc BE. Replacing into the equation:

∠A = (arc BC - arc BE)/2

50 = [4x + 20 - (2x - 10)]/2

50*2 = 2x + 30

x = (100 - 30)/2

x = 35°

Replacing this information into arc BC equation:

arc BC = 4(35) + 20 = 160°

7 0
3 years ago
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