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3 years ago

Factor completely and check mentally. 12a^2b^2-144ab

Mathematics

1 answer:

Nikitich [7]3 years ago

3 0

12ab(ab-12) is the factored form of this equation.

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There are 180 students going on a class field trip. Of those students, 40% are boys. How many students on the field trip are boy

Rufina [12.5K]

Answer:72 are boys.

Step-by-step explanation:

40%of 180 is 72.

3 0

2 years ago

Read 2 more answers

Evaluate -x+4 when x = -2

Gnesinka [82]

Answer:

Step-by-step explanation:

=> -x+4

Given that x = -2

=> -(-2)+4

=> 2+4

=> 6

6 0

3 years ago

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Y=-2(×-3)(x-2) to standard form (show work)

damaskus [11]

Answer:

y=-2x^2+10x-12

Step-by-step explanation:

graph is shown in image below

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2 years ago

A rectangular sheet of paper is 12 1/2 cm long and 10 2/3 cm wide.Find it's perimeter

ra1l [238]

Answer:

Given

length of rectangular sheet of paper is 12 (1/2) i.e. (25/2)

Breadth of rectangular sheet of paper is 10 (2/3) i.e. (32/3)

But we know that perimeter of rectangle = 2 (length + breadth)

Perimeter of rectangular sheet = 2 [(25/2) + (32/3)]

LCM of 2 and 3 is 6,

by taking this and simplifying we get

Perimeter = 2[(25 × 3)/6 + (32 × 2)/6]

= 2[(75/6) + (64/6)]

= 2(139/6) = (139/3)

= 46 (1/3) cm

3 0

3 years ago

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An airliner is 9.34 feet wide. The airline wants to install 5 seats in each row. The seats are each 1.46 feet wide. Rounded to t

MatroZZZ [7]

About 2.0 feet space will be left for aisle.

Step-by-step explanation:

Width of airliner = 9.34 feet

Width on one seat = 1.46 feet

Seats to install = 5

Width of 5 seats = 5*1.46 = 7.3 feet

Space left for aisle = Width of airliner - width of 5 seats

$Space\ left\ for\ aisle=9.34-7.3\\Space\ left\ for\ aisle=2.04\ feet$

Rounding off to nearest 10th

Space left for aisle = 2.0 feet

About 2.0 feet space will be left for aisle.

Keywords: multiplication, subtraction

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7 0

3 years ago