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FromTheMoon [43]
3 years ago
10

An equilateral triangle with side length 9 cm is shown in the diagram, work out the area of the triangle.

Mathematics
1 answer:
amid [387]3 years ago
4 0

The answer is 35.1 cm².

Hope this helps; have a great day!

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How do I round the number to those explanations and do question 2 so confused
wolverine [178]
1) Nearest thousand: 457,000 (Look at the thousandths place. Is the number closer to 457,000 or 456,000?)
Hundred: 457,000 (Look at the hundredths place. Is the number closer to 456,000 or 457,000?)
Ten: 456,990 (Look at the tenths place. Is the number closer to 456,980 or 456,990?)

2) The value of the expression when x=6 is 27. Explanation:
6x-7
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6 0
3 years ago
Boubacar went to the store to buy some walnuts. The price per pound of the walnuts
Inessa05 [86]

Answer:

Step-by-step explanation:

Price per pound of the walnuts = $ 6.50

Price of 4 pounds of the walnuts = 4 *6.50 = $ 26

Amount needs to be paid = Price of 4 pounds of walnut - coupon amount

             = 26 - 3.75

              = $ 22.25

Expression:

Cost to buy p pounds of walnuts = p * 6.50 = 6.5p

Cost to buy p pounds of walnuts, assuming at least one pound is purchased =  6.50 + 6.5p

7 0
2 years ago
HELP!!!!
Harman [31]
The lateral area is the area of everything but the base.  A shortcut formula for this area is Ph.  (where P is the perimeter of the base and h is the height of the prism).

So the lateral area is (3+9+9.49)x37 = 795.13 m^2  or 795 m^2

The surface area is the lateral area plus the area of the 2 bases.  The base is a triangle.  (area = 1/2 bh) 

Since there are two identical bases, the total area of the base is just 3x9 = 27

So the surface area is 795.13 + 27 = 822.13 m^2 or 822 m^2.
3 0
3 years ago
3 to the square root of 7 - 5 to the square root of 7
OLga [1]

Answer:

Step-by-step explanation:

(3 to the square root (7)) - (5 to the square root (7))

we get

52.38

hope this helps you

6 0
3 years ago
If y= 1/2x and x= -14, find y
malfutka [58]

Answer:

y=-1/28

Step-by-step explanation:

y=1/2(-14)

y=1/-28

8 0
3 years ago
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