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alexgriva [62]
3 years ago
14

Can someone please help me with my homework:(

Mathematics
2 answers:
marusya05 [52]3 years ago
7 0

Answer:

118.3

Step-by-step explanation:

The formula for the area is a triangle is base*height/2

Area = 18.2*13/2 = 118.3

damaskus [11]3 years ago
7 0

Answer:

118.3

1/2b×h

1/2(13)x18.2

6.5×18.2

118.3m^2

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-1(x+5)=3[x+(2x-1)]<br> solved and justified each step
madreJ [45]

Answer:

<h2>x = -0.2</h2>

Step-by-step explanation:

-1(x+5)=3[x+2x-1)]\\\\\text{for}\ -1(x+5):\ \text{distribtutive property}\\\text{for}\ [x+(2x-1)]:\ \text{associative property}\\\\(-1)(x)+(-1)(5)=3[(x+2x)-1]\\-x-5=3(3x-1)\\\\\text{for}\ 3(3x-1):\ \text{distributive property}\\\\-x-5=(3)(3x)+(3)(-1)\\-x-5=9x-3\\\\\text{for the equation}:\ \text{addition property of equality}\\\\-x-5=9x-3\qquad\text{add 5 to both sides}\\-x-5+5=9x-3+5\\-x=9x+2\\\\\text{for the equation:}\ \text{subtraction property of equality}\\\\-x=9x+2\qquad\text{subtract}\ 9x\ \text{from both sides}

-x-9x=9x-9x+2\\-10x=2\\\\\text{for the equation:}\ \text{division property of equality}\\\\-10x=2\qquad\text{divide both sides by -10}\\\dfrac{-10x}{-10}=\dfrac{2}{-10}\\x=-0.2

\text{Distributive property:}\ a(b+c)=ab+ac\\\text{Associative property:}\ (a+b)+c=a+(b+c)

6 0
3 years ago
Use your plan of dividing both sides by five to solve the equation. What is the value of x?
sleet_krkn [62]
Where’s the equation
4 0
3 years ago
Circumference of 6cm ? help plz &lt;3 heyyy b a e (bet you won't reply :)
Naily [24]

Answer:

If r = 6 cm, the the circumference is c = 2π(6) = 12π cm

HOPE THIS HELPS AND PLS MARK AS BRAINLIEST

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7 0
3 years ago
7) Addition, subtraction, multiplication, and division are all called _ _ _ _ _ _ _ _ _ _.
mrs_skeptik [129]

Answer:

Algebreic Operations.

Step-by-step explanation:

Quizlet has answers. You can find stuff like this there:)

4 0
3 years ago
Read 2 more answers
Five hundred tickets were sold for a Saturday evening performance of a play. The tickets cost $ 7.50 for adults and $4.00 for ch
Volgvan

Answer: A+C=500

7.5A+4.75C=3351.25

C=500-A

7.5A+4.75(500-A)=3351.25

7.5A+2375-4.75A=3351.25

2.75A=976.25

A=355 adults ($2662.50)

C=500-A=145 children ($688.75)

Step-by-step explanation:

6 0
3 years ago
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