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evablogger [386]
3 years ago
9

How many diagonals will a decatriagon have?

Mathematics
2 answers:
vivado [14]3 years ago
8 0

Answer: 35 diagonals

Step-by-step explanation:

A decagon has (10 2) – 10 = 35 diagonals.

Alinara [238K]3 years ago
6 0

Answer:

35 diagonals.

I Hope it will help you ((:

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What is the sum of 5x*2 +3x-7 and 12x+12
Gemiola [76]

Answer:25x + 5

Step-by-step explanation:

(5x * 2 + 3x - 7) + (12x +12)

= (10x +2x - 7) + (12x + 12)

= (13x - 7) + (12x + 12)

Expand the brackets

= 13x - 7 + 12x + 12

Join like terms together

= 13x + 12x + 12 - 7

= 25x + 5

3 0
3 years ago
PLEASE HELP ME. THIS IS DUE TODAY
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3 years ago
Tanner is an 8th grader in Texas and wants to attend Stanford University after he graduates from
postnew [5]

Tanner will have to save $3,193.34 per month for 4 years to pay his tuition for Stanford.

Tanner's tuition over 4 years to get his Bachelor's degree all together will cost $185,280 (multiply 46,320×4). His parents will pay $32,000 (multiply 8,000×4) of his whole tuition. If we do the equation $185,280-$32,000 we get $153,280 which is what Tanner will have to pay. There are 48 months in 4 years. To find the answer you must solve the problem 48x= $153,280. To solve the problem divide both sides by 48. The answer to this equation is technically $3,193.3333333333 but for simplicity's sake we can round to $3,193.34. That is why the answer to this question is $3,193.34 per month of savings.

5 0
3 years ago
The sun produces 3.9 ⋅ 10 to the 33th power ergs of radiant energy per second. How many ergs of radiant energy does the sun prod
arlik [135]
So the sun produces 3.9x10³³/ second

Using this ratio (3.9x10³³/ second) we can use the porpotions to calculate time taken (T) to produce 1.55x10⁷.

\frac{3.9(10^3) ergs}{1 second} =  \frac{1.55(10^7)ergs}{T}

Then isolate T and find the time

\frac{T3.9(10^3)ergs}{1 second} = {1.55(10^7)ergs
T3.9(10^3)ergs = ({1.55(10^7)ergs)seconds
T =  \frac{(1.55(10^7)ergs)seconds}{3.9(10^3)ergs}
T =  \frac{(1.55(10^7)seconds}{3.9(10^3)}
T = \frac{1.55}{3.9}(10^4)seconds
T = 0.397(10^4)seconds
T = 3.97(10^-^1)(10^4)seconds
T = 3.97(10^3)seconds

Thus it took 3.97x10³ seconds for 1.55x10⁷. of ergs to be produced
Hope that helped and if it did, a Brainliest rating would be much appreciated


6 0
3 years ago
Trash-A-way charges $25 per month with an additional $0.25 per pound of trash that they pick up from your house. Garbage -No-Mor
goldenfox [79]

25 + 0.25x=45

0.25x=20

x= 20/0.25 = 80

 so 80 pounds of trash

3 0
3 years ago
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