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Irina-Kira [14]
3 years ago
11

-4/9(-7/9) =_______?

Mathematics
1 answer:
Setler79 [48]3 years ago
6 0
Multiply straight across (neg times a neg = a positive)
=28/81

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A rectangle has sides that measure 2 x + 11 units long and 10 x + 1 units long. What is the expression that represents the perim
HACTEHA [7]

Answer:

(24x + 24) units

Step-by-step explanation:

A rectangle is a shape that has four sides in which all angles are equal and opposite sides are equal and parallel to each other. The perimeter of a rectangle is the sum of all its sides. Since opposite sides are equal, the perimeter is given as:

Perimeter = 2(length + width)

Since the sides of the rectangle are 2 x + 11 units long and 10 x + 1 units long. Hence:

Perimeter = 2(2x + 11 + 10x + 1)

Perimeter = 2(2x + 10x + 11 + 1) = 2(12x + 12)

Perimeter = (24x + 24) units

7 0
3 years ago
1) 7+a=15<br><br><br><br> 2) 23=d+44<br><br><br><br> 3) 28=n-14<br><br><br><br> 4) T-22=-31
Romashka [77]
Hi, I'd be glad to help. 

1) a = 8

2) d = (-21) 

3) n = 42

4) t = (-9)
6 0
3 years ago
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Can some explain this to me do i need to covert something or can someone explain it to me how in gonna get the answer i try to d
solniwko [45]
Cross multiply:

2.5 ft x 16.5 ft = 41.25 ft

now divide:

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7 0
3 years ago
Area of triangle 4cm, 5cm and 3cm
sergiy2304 [10]

Answer:

4cm x 5cm x 3cm = 60cm

Step-by-step explanation:

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8 0
3 years ago
The table below shows the account value of each of Dmitri's three bank accounts
faltersainse [42]

Answer:

there could be more than one answer...

Step-by-step explanation:

6 0
3 years ago
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