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Ulleksa [173]
2 years ago
13

Which expression is eqivalent to 4(9+3)

Mathematics
1 answer:
Black_prince [1.1K]2 years ago
7 0

You could do

36+12

4*12

4*9+12

(4*9)+(3*4)

and many more!

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How do I graph an inequality in one variable?
Masja [62]
It depends on the variable.

If it's something like x < 2, your graph would be a vertical line at x = 2, and everything to left of that line shaded in (because of the less than).

Similarly for y, except it would be a horizontal line with either everything above or below shaded.

You can have other equations like 0<x<4 where everything between x = 0 and x = 4 would be shaded
7 0
3 years ago
(-3,4) is one of many solutions to the inequality: <br><br> 2x+y ≥ -2<br><br> True or false
Blababa [14]

Answer:

True

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Water is added or drained from a tank each day. The first day, 910 of a gallon is added to the empty tank. The second day, 710 o
dimulka [17.4K]

Answer:

The quantity of water in the tank after 15 days is 1610.0 gallons OR 1.61 × 10³ gallons.

Step-by-step explanation:

The amount of water in the tank after 15 days is given by the series

910+(−710)+810+(−610)+⋯+310+(−110)+210

From the series, we can observe that, if water is added for a particular day then water will be drained the following day.

Also, for a day when water is to be added, the quantity to be added will be 100 gallon lesser than the quantity that was last added. Likewise, for a day when water is to be drained, the quantity to be drained will be 100 gallons lesser than the quantity that was last drained.

Hence, we can complete the series thus:

910+(−710)+810+(−610)+710(-510)+610(-410)+510(-310)+410(-210)+310+(−110)+210

To evaluate this, we  get

910-710+810-610+710-510+610-410+510-310+410-210+310-110+210

= 1610.0 gallons

Hence, the quantity of water in the tank after 15 days is 1610 gallons OR 1.61 × 10³ gallons.

8 0
3 years ago
Please help Use the expression 8a + 16c.
alexdok [17]

Answer:

C  89a + 2c)

Step-by-step explanation:

The largest factor of both 8 and 16 is 8.  So, 8 = GCF

factor out an 8 and you get 8(a + 2c)

To check if you are correct, multiply and see if you get what you started with.

3 0
3 years ago
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Find ordered pairs: choose two of the answers below
Anarel [89]

Answer:

b -3,3 c 6,9 hope this helps

5 0
3 years ago
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