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IceJOKER [234]
3 years ago
7

Help Me fast!!!!!!!!!!!!

Mathematics
2 answers:
mylen [45]3 years ago
6 0

Answer:

b

Step-by-step explanation:

Ugo [173]3 years ago
4 0

Answer:

12.25 i think sorry if im wrong

Step-by-step explanation:

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ABCDE is aregular pentangon<br> X=?
Viefleur [7K]

Answer:

x = 5.2

Step-by-step explanation:

Measure of interior angle of a regular polygon = \frac{(n-2)\times180}{n}

Here n = number of sides of the polygon

Interior angle of a regular pentagon = \frac{(5-2)\times180}{5}

                                                            = 108°

By applying cosine rule in ΔABK,

(BK)² = (AK)² + (AB)² - 2(AK)(AB)cos(108)°

(x + 3)² = 4² + 6² - 2(4)(6)cos(108)°

x² + 6x + 9 = 16 + 36 - (-14.83)

x² + 6x = 57.83

x² + 6x - 57.83 = 0

x = \frac{-6\pm \sqrt{6^2-4(1)(-57.83)}}{2(1)}

x = \frac{-6\pm16.35}{2}

x ≈ -11.2, 5.2

Since, x can't be negative,

x = 5.2 will be the answer.

6 0
3 years ago
LO bisects &amp;NLM, LM= 22, NO = 6, and LN= 14. What is the approximate value of x?
ser-zykov [4K]

Answer:

9.4

Step-by-step explanation:

Given :

LM= 22, NO = 6, and LN= 14 ; MO = x

Since O bisects the triangle ;

LN / NO = LM / MO

14 / 6 = 22 / x

Cross multiply :

14 * x = 22 * 6

14x = 132

Divide both sides by 14

14x/14 = 132 / 14

x = 9.428

x = 9.4 ( 1 decimal place)

5 0
3 years ago
Simplify 5.4x−1.1−3(x−1.1)
PtichkaEL [24]

Answer:

2.4x +2.2

Step-by-step explanation:

5.4x−1.1−3(x−1.1)

The first step is to distribute the -3

5.4x−1.1−3(x) -3(−1.1)

5.4x -1.1 -3x +3.3

Now we need to combine like terms

5.4x-3x -1.1+3.3

2.4x +2.2

8 0
3 years ago
Read 2 more answers
Please help me with this question​
AveGali [126]

Answer:

(3,10)

(5,8)

(7,8)

(9,10)

Step-by-step explanation:

This is kinda simple, you look were the quadrants are which is the edges of the shape and follow the line down and side ways and that's were the shape if

It is asking you were the four sides are

Remember that its x then y

But that's how you find the shape

4 0
3 years ago
Read 2 more answers
The average mother's, father's, and son's age is 28 years. The average mother's and son's age is 23 years. The average father's
Grace [21]

Answer:  son is 12 years old

Step-by-step explanation:

Let m be the age of mother, f be the age of father, and s be the age of son.

m + f + s = 28 x 3 = 84

m + son = 23 x 2 = 46

f + s = 25 x 2 = 50

m = 46 - s

f = 50 - s

we plug in m and f to the functions.

we get 46 - s + 50 - s + s = 84  

96 - s = 84  

-s = -12  

s = 12 years old

3 0
3 years ago
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