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alekssr [168]
2 years ago
9

Which property was used to simplify the expression?

Mathematics
1 answer:
Vadim26 [7]2 years ago
5 0

Answer:

commutative property

Step-by-step explanation:

Either order or way you put the numbers, it will be the same answer.

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3^5 ×3^2=?^?<br><br> Blank 1:<br> Blank 2:
Hatshy [7]

Answer:

3^7

Step-by-step explanation:

Use exponent rules

a^b * a^c = a^(b+c)

3^5 * 3^2 = 3^(5+2)

6 0
2 years ago
Read 2 more answers
Suppose that each quater at a
dsp73
Tuition- 3,645
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3 years ago
A room is 20 feet by 25 feet with a 10-foot ceiling. If Mickey paints the walls and the ceiling, how much surface area will he c
Svetradugi [14.3K]

Answer:

1400ft²

Step-by-step explanation:

Given

Room Dimension: 20 ft by 25 ft by 10 ft

Where Length = 20 ft

Width = 25 ft

Height = 10 ft

Required

Surface area of painted walls and ceiling

We'll assume that the room is rectangular in shape and all 4 sides are covered.

<em>This means that Mickey will paint 4 walls and 1 ceiling.</em>

The dimension of the 2 of the 4  walls is as follows;

20ft by 10ft, 25ft by 10ft,

Because opposite sides of a rectangle are equal, the dimension of the remaining 2 walls is: 20ft by 10ft, 25ft by 10ft

Calculating the area of the 4 walls;

Area = 20ft * 10ft + 25ft * 10ft + 20ft * 10ft + 25ft * 10ft

Area = 200ft^2 + 250ft^2 + 200ft^2 + 250ft^2

Area = 900ft^2

The dimension of the ceiling is as follows:

20ft by 25ft

Calculating the area of the ceiling

Area = 20ft * 25ft

Area = 500ft^2

So, the area Micky will cover = Area of 4 walls + Area of ceiling

Total Surface Area = 900ft^2 +500ft^2

Total Surface Area = 1400ft^2

Hence, Micky will cover 1400ft²

6 0
3 years ago
a hardware store marks up the price of all tools it gets from the ware house by 18% and then puts them on sale for 20% off what
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2 years ago
PLEASE HELP AND PLEASE SHOW YOUR WORKING
professor190 [17]

Answer:

S = 13 - x

T = (18 + x) / 2

Step-by-step explanation:

S = 18

T= 18

Sue gives away x, so subtract it from 18. But Tony gets x, so add it to 18 in his expression.

S = 18 - x

T= 18 + x

Sue eats 5 so subtract 5 from her expression. Tony eats half, so divide his expression by 2.

S = 18 - x - 5

T = 18 + x / 2

Simplify 18-5.

S = 13 - x

T = (18 + x) / 2

6 0
2 years ago
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