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IrinaK [193]
3 years ago
12

In the united states in the 20th century, average life expectancy increased about 47 years to about 77 years. Find the percent o

f increase.
Mathematics
1 answer:
Alexandra [31]3 years ago
3 0

Answer:

well it increased by 30% if thats what you mean. i really hope this helped!

Step-by-step explanation:

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At Levi's restaurant and bakery, each cake is cut into 16 pieces.
Vikentia [17]
Answer
C = 16 (16c)
P = cake
Explanation
there are 16 pieces of cake and is spilt and says let C represent the amount of cakes and P represent cake
5 0
2 years ago
Plsss help 6th grade math
nignag [31]

Answer:

The correct answer is C! :)

Step-by-step explanation:

4 0
3 years ago
Find x. Round your answer to the nearest tenth. <br><br> ______________
liubo4ka [24]

Answer:

Step-by-step expThis is the concept of trigonometry, the value of x will be calculated as follows;

sin theta=[opposite]/[hypotenuse]

theta=x

opposite=16 units

hypotenuse=21 units

thus;

sin x=16/21

hence;

x=arcsin(16/21)

x=49.63

x=50 (to the nearest degrees)

7 0
3 years ago
Been working on this for too long. thank u :)
Ket [755]

Answer:

Im not a 100% sure but my best guess would be the 3rd equation:

f(x) = (x - 1) (x + 3)

Please let me know if I was wrong, but i hope this helped you!

8 0
2 years ago
Solve each equation and leave the answer in terms of “i”
almond37 [142]
17)
x² + 8 = -8
x² = -8 - 8
x² = 16
x = ±√-16
x = ±√16i
x = <span>±4i
</span>
18)
x² + 5 = -3
x² = -3 - 5
x² = -8
x = ±√-8
x = ±√8i
x = ±2√2i

19)
x² + 3 = 0
x² = -3
x = ±√-3
x = <span>±</span>√3i

hope this helps, God bless!
3 0
3 years ago
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