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qwelly [4]
2 years ago
7

An equilateral triangle with side length 4cm is shown in the diagram, work out the area of the triangle.

Mathematics
2 answers:
Elan Coil [88]2 years ago
8 0

Answer:

4√3cm^2

Step-by-step explanation:

we know that the area of equilateral triangle is √3/4a^2

dexar [7]2 years ago
6 0

Answer:

8cm²

Step by step explanation:

A= ½×4cm×4cm

A= ½×16cm²

A= 8cm²

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(x + 40) * (x + 40) =

(x + 40)² =

x² + 80x + 1600

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3 years ago
Which number is such that when it's ÷ 27 30 or 45 the remainder is always three​
rewona [7]

Answer:

closest answer = 81

Step-by-step explanation:

81/27 = 3

81/30= 2.7

81/45 = 1.8

6 0
3 years ago
Evaluate -1/3-(-4/9)​
bija089 [108]

Answer:

To subtract fractions, find the LCD and then combine.

Exact Form:

1/9

Decimal Form:

0.¯1

8 0
3 years ago
What is the value of 3-(-2)
Vanyuwa [196]

Answer:

5

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
Part B:
Andrew [12]

Articles of clothing that the store received last Thursday is 84

<u>Solution:</u>

Given that  

A clothing donation store received numerous articles of clothing on Thursday of last week.

The number of articles of clothing that the store received last Thursday is represented by the following expression:

4 (3x − 1) − 2 (6 + 2x)

Need to calculate articles of clothing that the store received last Thursday when x = 12.5

As on Thursday x = 12.5, need to substitute x = 12.5 in above equation to get number of articles received on Thursday.

On substituting x = 12.5, we get

4 ( (3 x 12.5 ) – 1 ) – 2 ( 6 + ( 2 x 12.5 ) )

=> 4 (37.5 – 1) – 2 (6 + 25)

=> 146 – 62 = 84

On substituting x = 12.5 , we are getting value of expression as 84.

Hence articles of clothing that the store received last Thursday is 84

3 0
2 years ago
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