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Tanya [424]
2 years ago
5

Anyone know the sqrt(-25) It would be 5i right?

Mathematics
1 answer:
tester [92]2 years ago
5 0
Yes ur right it would be 5 i
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A projectile is thrown upward off a 130ft cliff at a velocity of 15ft/second. How long before it reaches a height of 25ft?
zhuklara [117]

Answer:

The time taken for the projectile to reach the given height is 1.2 s.

Step-by-step explanation:

Given;

height of travel, h = 25 ft

initial velocity of the projectile, u = 15 ft/s

The time taken for the projectile to travel a height of 25 ft is given by the following kinematic equation;

h = ut + ¹/₂gt²

25 = 15t + ¹/₂(9.8)t²

25 = 15t + 4.9t²

4.9t² + 15t - 25 = 0

solving the quadratic equation, we will have the following solution of t;

t = 1.2 s

Therefore, the time taken for the projectile to reach the given height is 1.2 s.

5 0
2 years ago
Y=2/3x constant of proportionality
kvv77 [185]

Answer:

Looking at the equation, k=23 is our constant of proportionality because 23 is the constant number we multiply x by.

4 0
2 years ago
Josiah is playing a computer game that lets him customize a story There are 5 different eras and 2 location to choose from. How
pychu [463]

Answer:

10

Step-by-step explanation:

GIVEN: Josiah is playing a computer game that lets him customize a story There are 5 different eras and 2 location to choose from.

TO FIND: How many different stories can Josiah construct.

SOLUTION:

Total different eras =5

Total different locations =2

He can choose one era and one location.

Total different stories that Josiah can construct =^5C_1\times^2C_1

                                                                               =10

Hence Josiah can construct 10 different stories.

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3 years ago
What is answer?<br><br> Not really good. At this
Rama09 [41]
J
Because 15 - 13 is 2 x (8 + 4 = 24 and divided by 6 is 4
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2 years ago
CAN SOMEONE PLZ DO QUESTIONS 1-4 PLZ
zlopas [31]

Answer:

40 answer

Step-by-step explanation:

amil amil amil

8 0
3 years ago
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