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julia-pushkina [17]
4 years ago
6

I need help with this please!

Mathematics
1 answer:
slavikrds [6]4 years ago
5 0

Answer:

a.  197.4 cm^2.

Step-by-step explanation:

Area of the base = 7*7 = 49 cm^2.

Area of each triangular face = 1/2 * 10.6 * 7

=  37.1 cm^2

Total surface area of pyramid =  4* 37.1 + 39

= 197.4 cm^2.

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Please help me! i really need help​
deff fn [24]

Answer:

24.3

Step-by-step explanation:

because each side is the same. one has 12 inch and the other is 9. So you subtract 9 from 12 and get 3. Then you have to find out what the other mesurment is for the bigger shape, which is 2.7 because 32/12=2.66666, so u round and get 2.7 . so theen you multiply 9 and 2.7 and get 24.3! Hope this helps.

7 0
4 years ago
The price of an item has been reduced by 40%. The original price was $66. Find the price of the item now.
serious [3.7K]

Answer:

$39.60

Step-by-step explanation:

We are finding 66 - 40%

66 less 40% = 60% of 66

60% of 66 is the price of the item now.

Convert 60% to decimal form by dividing by 100.

60%/100 = 0.60

Multiply the decimal form by 66

66 X 0.6 = 39.60

Since we are dealing with money, keep 2 decimal places, even if the last digit is 0.

The price of the item now is $39.60.

7 0
4 years ago
What is 25.4067 to the nearest hundredth
ohaa [14]
I think it is 25.4100
3 0
3 years ago
Read 2 more answers
The opposite of - |9| is
aleksklad [387]

Hello from MrBillDoesMath!

Answer:   +9

Discussion:

The opposite of a number is that number multiplied by -1. In our case the opposite number is  (-1) *  (- (abs(9))) = -1 * (-9) = +9

Thank you,

MrB


3 0
3 years ago
Read 2 more answers
Can someone help me with my math home work
SOVA2 [1]

Answer:

Yes, but please attach it.

Step-by-step explanation:

You haven't yet.

8 0
4 years ago
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