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nirvana33 [79]
3 years ago
7

Simplify the square root of (x^2 -6x+ 9) if x<-3

Mathematics
1 answer:
kolezko [41]3 years ago
4 0

Answer:

x^2 - 9

Step-by-step explanation:

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HELP PLSSS IT'S A FINALLL!!!!!!!!!!! WILL GIVE BRAINLEST AND 50 POINTS!!!! PLEASE PLEASE PLEASE HELP!!!!
Lelu [443]

Answer:

Step-by-step explanation:

1). By applying Pythagoras theorem in the triangle formed by two sides and the diagonal,

Length of the diagonal = \sqrt{(\text{side})^2+(\text{side})^2}

                                      = (\text{side})\sqrt{2}

                                      = 25√2

                                AC ≈ 35.56 units

2). Since, diagonal of a square is the angle bisector of interior angles of the square,

m∠CAB = 45°

By applying sine rule in ΔABC,

sin(45°) = \frac{\text{Opposite side}}{\text{Hypotenuse}}

\frac{1}{\sqrt{2}}=\frac{AB}{AC}

\frac{1}{\sqrt{2}}=\frac{25}{AC}

AC = 25√2

AC ≈ 35.56 units

4 0
3 years ago
Urgent please help, will give brainliest
dem82 [27]

in right angle traingle two angle are equal

so.x=y

in triangle

x+y+90=180(sum of interior angle of triangle)

2x=180-90

x=90/3=45°

7 0
3 years ago
A triangle has an area of 9m2 and a base of 6m. how do I find the height of this triangle?
KonstantinChe [14]
You know the triangle has a base of 6 meters, and that the formula to find the area of a triangle is 1/2bh or one-half of the base times the height. So, you would plug in 9 meters squared=one half of six times h, or 9m^2=1/2(6)*(h). In simplifying this, you would get 3h=9m^2. Divide both sides by three and get h=3. Hope this helps, and if you need any further explanations, please let me know!
8 0
4 years ago
Write a story problem that can be solved by finding the sum of 506,211 and 424,809. Then solve the problem.
satela [25.4K]

we have that

Donald bought an apartment in Florida for \$506,211 and a house in Houston for  \$424,809 How much did the two properties Donald bought cost in total?

Let

x----------> the cost of the property in Florida

y----------> the cost of the property in Houston

T-------> total cost

we know that

x=\$506,211

y= \$424,809

T=x+y

Substitute the values in the formula

T=\$506,211+\$424,809=\$931,020

<u>The answer is</u>

the total cost is \$931,020

7 0
4 years ago
Read 2 more answers
you can use a calculator if you want. No links please help this is very important i will give you brain thing if its correct
VladimirAG [237]

Answer:

A, D

Step-by-step explanation:

1.67+1.4>3, 4.6-1.47>3.

4 0
3 years ago
Read 2 more answers
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