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Kipish [7]
3 years ago
7

Help please?????????????

Mathematics
1 answer:
goblinko [34]3 years ago
5 0

Answer:

D.) 3x - 3

Step-by-step explanation:

X - 4 + 2x + 1

= X + 2x - 4 + 1

= 3x - 4 + 1

= 3x - 3

I hope this helps!

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Alenkinab [10]
S·S=500. S²=500. S=√500. S=22.36. 22.4 inches for 1 side, 22.4(4)=89.6, 89.6 for all 4 :)
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What is the domain in interval notation?
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Find the value of x <br>a.2 <br>b.5<br>c.2.5<br>d.4​
nikdorinn [45]
I should say 5 is the most clearest answer to me
6 0
3 years ago
Read 2 more answers
Hello i need help with these questions asap!!
makvit [3.9K]

We use direct proportionality:

360⁰......Pi×R² (full circle)

120⁰.......x

x=120×pi×R²/360=pi×R²/3

x=pi×4²/3=16.76mi²

A=3×pi cm², for an angle of 2×pi/3=120⁰

In a similar way we compute the area of the full circle:

360.........x

120..........3×pi

x=3×pi×360/120=9×pi=3²×pi.

Thus the radius is 3cm.

3 0
3 years ago
On a cold day, the temperature in a certain city changed −18.5°F over 7.4 hours.
lys-0071 [83]

Answer:

-2.5 degrees

Step-by-step explanation:

The temperature decreased 18.5 degrees F in 7.4 hours.

-

-18.5/7.4 = -2.5 degrees F

The average change in temperature over the course of 7.4 hours is -2.5 degrees F.

Your welcome!

Kayden Kohl

8th Grade

5 0
2 years ago
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