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frez [133]
3 years ago
9

I need help with this question PLEASE 2n+3n+9=-41

Mathematics
1 answer:
Tanzania [10]3 years ago
8 0

Answer:

2n+3n=5n = -41-9= 50

5n=50

n = 10

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Whats the figures and how do I find the area?​
iragen [17]

Answer:

This is trapezium.

Area of this figure =1/2h(d1-d2)

1/2×5(14-8)

=30/2

=15cm^2

8 0
2 years ago
HELPPPPPP this is due tonight!!!!
laiz [17]

Answer:

(1) Commutative property

(2) Distributive property/Definition of addition

(3) Compatibility with addition/Existence of additive inverse/Modulative property

(4) Compatibility with multiplication/Associative property/Definition of division/Existence of additive inverse/Commutative and modulative properties/Result

Step-by-step explanation:

We proceed to solve algebraically and explain each step:

1) 4\cdot x +1 +x + 3 = -11 GIven

2) 4\cdot x +x +1 + 3 = -11 Commutative property

3) (4+1)\cdot x +4 = -11 Distributive property/Definition of addition

4) 5\cdot x +4 = -11 Definition of addition

5) 5\cdot x +4 -4 = -11-4 Compatibility with addition

6) 5\cdot x = -15 Existence of additive inverse/Modulative property

7) \frac{1}{5}\cdot (5\cdot x)= \frac{1}{5}\cdot (-15) Compatibility with multiplication

8) x = - 3 Associative property/Definition of division/Existence of additive inverse/Commutative and modulative properties/Result

Hence, we have the following answers:

(1) Commutative property

(2) Distributive property/Definition of addition

(3) Compatibility with addition/Existence of additive inverse/Modulative property

(4) Compatibility with multiplication/Associative property/Definition of division/Existence of additive inverse/Commutative and modulative properties/Result

6 0
2 years ago
If hj=7x-27 find the value of x
Harlamova29_29 [7]

Answer:

x=7

Step-by-step explanation:

HI + IJ = HJ

3x-5 + x-1 = 7x-27

Combine like terms

4x-6 = 7x-27

Subtract 4x from each side

4x-6 -4x= 7x-27-4x

-6 = 3x-27

Add 27 to each side

-6+27 = 3x-27+27

21 = 3x

Divide by 3

21/3 = 3x/3

7 =x

5 0
3 years ago
Can any one help me and work 2 or 3 of the problems for me to understand it
Alekssandra [29.7K]
To solve these problems you need to use the quadratic formula which is listed below. 

\frac{-b +/-  \sqrt{b^{2} - 4ac } }{2a}

So, if you take #2. 

The x^{2} has a 1 in front of it. The x has a -3 in front of it. The last number is also -3. So:

a = 1
b = -3
c = -3

Then you can plug all of these into the equation and simplify. Which gives you:

\frac{3 -/+  \sqrt{21} }{2}

4 0
3 years ago
Simply the expression 3(2x+y)
Damm [24]

Answer:

6x + 3y

Step-by-step explanation:

3(2x + y)

6x + 3y

Bet of Luck!

4 0
3 years ago
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