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skelet666 [1.2K]
3 years ago
13

The solution of 12 + 2x – x = 9x + 28

Mathematics
2 answers:
Natalka [10]3 years ago
7 0

Answer:

x = -2

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

never [62]3 years ago
5 0
9x-28=x+12

We move all terms to the left:

9x-28-(x+12)=0

We get rid of parentheses

9x-x-12-28=0

We add all the numbers together, and all the variables

8x-40=0

We move all terms containing x to the left, all other terms to the right

8x=40

x=40/8

x=5
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a =  {b}^{2}  +  {c}^{2}  - 2ab \cos(angle \: opposite \: a)
'b' and 'c' must be sides that are beside the angle 'A' (angle opposite 'a').
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PLEASE HELP!!!!Create a scenario that leads to an inequality of the form ax + b > c. You can use any of the inequality symbol
Morgarella [4.7K]
A football team wants to by a football. The football costs $51. There are 11 members of the team. How much will each of the team members contribute to be able to purchase the football if they had $29 already.

Solution: Let the amount each team member contributes be x, then
11x + 29 ≥ 51
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7 0
3 years ago
Anyone know how to do this
frez [133]

Answer:

77

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3+2*49-24

3+98-24

101-24

77

Good luck

7 0
3 years ago
Read 2 more answers
The factors of m2 + 12m + 35 are ( ) and ( ). NextReset
asambeis [7]
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3 0
4 years ago
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Finding the radius based on height of my building and max angle of repose?
mezya [45]
The maximum angle of repose is the<span> maximum angle at which a material can be piled without slumping. The material piled up will form a cone.

If we project the situation on a 2D plane, we get a triangle rectangle (see picture attached). We know one angle and the Opposite side (height) and we need to find the Adjacent side (radius).

Recalling trigonometry formulae:
tan</span>α = O / A

Solving for A:
A = O / tan<span>α

We can now substitute our data (O = 20):
</span>1) Sand, Bank Damp 
<span>α = 45° 
A = 20 / tan(45)
   = 20
The radius is 20 feet.
</span>
2)Sand, Bank Dry
α = 35°
A = 20 / tan(35)
   = 28.5629
The radius is 28.6 feet.

3) Sand, core 
α = 41°
A = 20 / tan(41)
   = 23.0074
The radius is 23 feet.

4) Sand, foundry prepared 
α₁ = 30°
A₁ = 20 / tan(30)
   = 34.6410

α₂ = 44°
A₂ = 20 / tan(44)
   = 20.7106

The radius is between 20.7 and 34.6 feet.

5) Sand, Foundry shakeout 
α = 39°
A = 20 / tan(39)
   = 24.6979

The radius is 24.7 feet<span>.</span>

8 0
3 years ago
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