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Liono4ka [1.6K]
3 years ago
9

2(5x-3) expanded using distributive property

Mathematics
1 answer:
nikdorinn [45]3 years ago
5 0

Answer:

10x-6

Step-by-step explanation:

First, you multiply 2 times 5x, which come out as 10x. Then, you multiply 2 times -3, which is -6. So 10x-6.

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What is the total surface area of the rectangular prism?​
bogdanovich [222]

Answer:

Total surface = 102.4 cm^2 (second answer in the list of options)

Step-by-step explanation:

Notice that we need to add the surface of 4 rectangles, two have smaller sizes than the other two. A pair of rectangles are 7.2 cm x 4 cm = 28.8 cm^2, while the other pair has 7.2 cm x 2 cm = 14.4 cm^2

There are also two equal bases each one of size 4 cm x 2 cm = 8 cm^2

Now we add two of each of the individual surfaces discussed above to complete the total surface area:

2 * 28.8 + 2 * 14.4 + 2 * 8 =  102.4 cm^2

which agrees with the second answer option provided.

3 0
3 years ago
How are number lines and the coordinate plane related?
schepotkina [342]
a coordinate plane is a two-dimensional number line where the vertical line is called the y-axis and the horizontal is called the x-axis. And a number line is
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8 0
3 years ago
Lillian went shopping for a new phone because of a sale. The price on the tag was $20, but Lillian paid $16 before tax. Find the
ycow [4]

Answer:

20 % discount

Step-by-step explanation:

Lilian got 4 dollars off of the original price    (20 - 16 = 4 )

4 / 20  * 100% = 20% off

3 0
2 years ago
Link is coloring a triforce, which consists of four equilateral triangles and is depicted below. He has three colors to use: gol
3241004551 [841]

Answer:

12

Step-by-step explanation:

For the top triangle, he has 3 options

3C1 = 3

For the middle one, he can't use the top triangle's colour, so 2 options

2C1 = 2

For the ones on sides of the middle one, 2 options each

2C1 × 2C1 = 4

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These include all three outer ones same, so subtract 3

Also, these include 2 of the three outer ones same, so subtract:

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5 0
2 years ago
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3/8 divided by 13/16
dedylja [7]

Answer:

Fraction= 6/13

Decimal= 0.4615

8 0
2 years ago
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