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dem82 [27]
3 years ago
12

The perimeter of a square is 52 cm. Calculate the area of the square.

Mathematics
2 answers:
malfutka [58]3 years ago
8 0
The answer: A=169cm²
Aliun [14]3 years ago
4 0

Answer:

52/4 = 13

13 X 13 = 169 cm squared

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A 12,000-lb killer whale might eat as much as 14,000 lb of fish per month (assume a 30-day month). If the average weight of a ce
brilliants [131]

Answer:

2196 fish

Step-by-step explanation:

Weight of fish that the killer whale might eat in a month (30 days) = 14,000 lb

Weight of the fish that killer whale might eat in a day = \frac{14000}{30} = \frac{1400}{3} lb.

Average weight of the fish that killer whale eats = 3.4 oz

Since,

1 pound(lb) = 16 ounces(oz)

So,

Weight of the fish that killer whale might eat in a day in ounces(oz) = \frac{1400}{3} \times 16=\frac{22400}{3} oz

Since, a certain fish weighs 3.4 oz, in order to find the number of fish that killer whale must eat, we must divide the total weight in ounces by 3.4 ounces.

So, the number of fish that killer whale would eat = \frac{22400}{3} \div 3.4 = 2196 fish

Thus, the killer whale needs to eat 2196 fish.

8 0
3 years ago
A solution to the inequality 3.75 – 3x ≤ 6.
LenKa [72]

Answer:

x ≥ -0.75

Step-by-step explanation:

3.75 - 3x ≤ 6

Subtract 3.75 on both sides.

- 3x ≤ 6 - 3.75

- 3x ≤ 2.25

Divide both sides with -3.

x ≥ 2.25/-3

x ≥ -0.75

7 0
3 years ago
Read 2 more answers
Factor 20r+60t to identify the equivalent expression
Nadusha1986 [10]

Answer:

\boxed{20(r + 3t)}

Step-by-step explanation:

20r + 60t

Factor out 20 from the expression.

20(r) + 20(3t)

Take 20 as common.

20(r + 3t)

7 0
3 years ago
a parallelogram has side lenghts 20 cm and 25 cm. the diagonal opposite the obtuse angle measures 38 cm. what is the measure of
Nady [450]

Step-by-step explanation:

1. draw the parallelogram with side 20cm and 25cm respectively and also the diagonal as well.

2.Clearly it forms a triangle in the parallelogram with three known lengths of side.

3.Using the cosine rule : c^2=b^2+c^2 -2bc cos c to find the obtuse angle.

3 0
2 years ago
Read 2 more answers
You are playing a card game where the total points you earn depends on theasuits of the cards you draw. The total number of poin
Semmy [17]

3a + 3b-2c-2d

a= number of hearts

b= number of diamons

c= number of clubs

d= number of spades

if you draw 3hearts, 2 diamonds, and 1 spade, just replace a=3, b=2, c=0, d=1

3(3) + 3(2)-2(0)-2(1)

Multiply each term and add the results:

9+6-0-2 = 13

13 points

4 0
1 year ago
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