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vagabundo [1.1K]
3 years ago
7

Evaluate the expression when x=2 . -3x+1.5+2.5x-4.5+8x

Mathematics
1 answer:
dlinn [17]3 years ago
3 0

Answer: 12

Step-by-step explanation:

For this problem, all you have to do is plug in x=2 into all the x you see.

-3(2)+1.5+2.5(2)-4.5+8(2)

-6+1.5+5-4.5+16=12

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Need help asap!!!30 POINTS!!!!!
OlgaM077 [116]

Answer:

What is it?

Step-by-step explanation:

8 0
3 years ago
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Simplify -2x^3y x xy^2<br><br> A. -12x^4y^3<br> B. -3x^4y^3<br> C. -2x^4y^3<br> D. -2x^3y^4
adoni [48]

Answer:

The answer is (C) ⇒ -2x^{4}y^{3}

Step-by-step explanation:

∵ (-2x³y) × (xy²) ⇒ add the power of same base

∴ -2(x^{3+1})(y^{1+2})=-2x^{4}y^{3}

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8 0
4 years ago
I need help with this question
Radda [10]

Answer:

2√14m

Step-by-step explanation:

Hypothenus = 9m

Second side = x

third side = 5m

Using Pythagoras theorem

9² = x² + 5²

81 = x² + 25

x² = 81 - 25

x² = 56

x = √56

= √4 × √ 14

= 2√14m

8 0
3 years ago
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allochka39001 [22]

Answer:

i really dont know what you are saying, but thanks for the points and have a nice day! always smile peeps!

3 0
3 years ago
Please show your work
jarptica [38.1K]

Answer:

x ≈ 6.71

Step-by-step explanation:

a²+b²=c²

a=3, b=6, c=x

3²+6²=c²

9+36=c²

45=c²

c=√45

c≈6.71

4 0
3 years ago
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