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omeli [17]
3 years ago
8

The sum of a number and 3:

Mathematics
1 answer:
fenix001 [56]3 years ago
6 0

Answer:

x+3?

Step-by-step explanation:

honestly, there is not alot of information present here. so when a hear "a number" i think variable.... which would be set up as x+3

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What is a mixed number equivalent to 3.750
Anastasy [175]
The answer to your question is 3 3/4.. i hope its right.
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3 years ago
Find the total surface area of a cuboid 7.5cm 2.3cm 5cm
zavuch27 [327]

Answer:

17.25

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
-4(2x + 4) > 8x + 64
romanna [79]

Hello there I hope you are having a great day :)

Your Question, -4(2x + 4) > 8x + 64 Solve for X

1) Expand -8x-16>8x+64

2) Add 16 to both sides -8x-16+16>8x+64+16

3) Simplify -8x>8x+80

4) Subtract 8x from both sides -8x-8x>8x+80-8x

5) Simplify -16x>80

6) Multiply both sides -1 (Reverse the inequality) (-16x) (-1) >80 (-1)

7) Simplify 16x<-80

8) divide both sides by 16   16x/16 <  -80/16

9) Simplify x < -5  

This should be your answer x < -5

Hopefully that helps you :)

5 0
2 years ago
Read 2 more answers
Ab= 6cm Ac=12cm <br> Calculate the length of Ad <br> Give your answer to 3 significant figures
Allisa [31]

Answer:

12.686cm

Step-by-step explanation:

By using pythagoras, we can find CB.

We know that a^2+b^2=c^2

Therefore, 12^2-6^2=CB^2

CB=\sqrt{108} (it has to be positive since it is distance)

now we look at triangle BCD and use SOH CAH TOA.

Sin55=CB/CD\\Therefore, CD= 12.686

8 0
3 years ago
Worth 10 pts ... pls help
Wewaii [24]

Answer:

the length is 8cm???

Step-by-step explanation:

its kind of obvi (i Think)

6 0
3 years ago
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