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KonstantinChe [14]
3 years ago
10

Which pair of expressions below is equivalent?

Mathematics
2 answers:
ololo11 [35]3 years ago
5 0
The first one. A is the answer
Ray Of Light [21]3 years ago
5 0

Answers a :c f

Step-by-step explanation:

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Jerald jumped from a bungee tower. If the equation that models his height, in feet, is h = –16t2 + 729, where t is the time in s
Snezhnost [94]

Answer. First option: t > 6.25


Solution:

Height (in feet): h=-16t^2+729

For which interval of time is h less than 104 feet above the ground?

h < 104

Replacing h for -16t^2+729

-16t^2+729 < 104

Solving for h: Subtracting 729 both sides of the inequality:

-16t^2+729-729 < 104-729

-16t^2 < -625

Multiplying the inequality by -1:

(-1)(-16t^2 < -625)

16t^2 > 625

Dividing both sides of the inequality by 16:

16t^2/16 > 625/16

t^2 > 39.0625

Replacing t^2 by [ Absolute value (t) ]^2:

[ Absolute value (t) ]^2 > 39.0625

Square root both sides of the inequality:

sqrt { [ Absolute value (t) ]^2 } > sqrt (39.0625)

Absolute value (t) > 6.25

t < -6.25 or t > 6.25, but t can not be negative, then the solution is:

t > 6.25



5 0
3 years ago
Read 2 more answers
A grocery store stocks shelves with 100 cartons of strawberries before the store opens. For the first 3 hours the store is open,
ehidna [41]

Answer:

80 - 30(first hour )=50

50-0(2nd hour)=50

50-20=30

30-20=10

10 Is THE ANSWER

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2 years ago
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5,3 = 28<br>7,6 = 55<br>4,5 = 21<br>3,8 = ?​
Bond [772]

Answer:

17

Step-by-step explanation:

3×3+8

i applied BODMASS RULE

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2 years ago
Which of the following fractions is equivalent to 4/20? 2/6 8/16 1/2 3/6 5/10 7/11
scZoUnD [109]

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1/2

Step-by-step explanation:

8 0
3 years ago
Solve for the value of z
zloy xaker [14]

Answer:

  26

Step-by-step explanation:

The two angles shown are a linear pair. Their sum is 180°.

  (4z -8)° +(3z +6)° = 180°

  7z = 182 . . . . . . . . . divide by °, add 2

  z = 26 . . . . . . . . . . divide by 7

3 0
2 years ago
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