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KonstantinChe [14]
3 years ago
11

I need help with 2 questions please thank you.

Mathematics
1 answer:
yuradex [85]3 years ago
8 0
Kite:

10.2 x 8 = 81.6/2 = 40.8 ft^2

pentagon:

area = 1/2 x apothem x perimeter
perimeter = length of side x number of sides

pentagon has 5 sides, perimeter = 5 *20 = 100

area = 1/2 x 14 x 100 = 700 in^2

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What is the additive inverse of 7/2 ?<br> A) −2/7<br> B) −7/2<br> C) 2/7<br> D) 7/2
snow_lady [41]
The additive inverse of 7/2 would be -7/2 (option B) Since its. opposite !

A)is the additive inverse of C) ; C) is the additive inverse of A) (not your answer)

B. is the additive inverse for this problem (7/2) so thats how we found that this is your answer (answer)

D is the same thing for the problem (7/2) (not your answer)

7/2 isnt the additive inverse for 7/2 because they are the SAME not the opposite.

+ = - (Positive = negative)

- = + (negative = positive)
6 0
3 years ago
1. Joanna is saving up for a new car. Her parents said that once she has $1000 saved up, they would help her
iris [78.8K]

9514 1404 393

Answer:

  60 hours

Step-by-step explanation:

We want Joanna's total savings to be ...

  bank account + gift + earnings = 1000

  300 +100 +10h = 1000

  10h = 600 . . . . subtract 400

  h = 60 . . . . . . . .divide by 10

Joanna needs to babysit for  60 hours to earn the money she needs.

7 0
3 years ago
A piecewise function is defined as shown. f(x) =  What is the value of f(x) when x = 3?
IrinaVladis [17]
I hope this helps you



x=3


f (x)= x+1


f (3)= 3+1=4
3 0
3 years ago
Read 2 more answers
Help me on this please
Sedbober [7]
The answer would be 125. 
The answer is 125 because 10 to the 6th power is 1,000,000 and 10 to the 4th power is 40,000. 5*1,000,000 is 5,000,000. 4*10,000 is 40,000. 5,000,000/40,000 is equal to 125! 
4 0
3 years ago
Read 2 more answers
Dante's cell phone company charges $58 per month
Digiron [165]
Dante had sent 35 texts last month.
6 0
3 years ago
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