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viktelen [127]
3 years ago
8

What is 2.5 as a percent? 0.25 250 25 2.5(I think this one but idk)

Mathematics
2 answers:
slava [35]3 years ago
6 0
The answer is B 250%
exis [7]3 years ago
3 0

A percent is "per 100". Therefore, we can just multiply (you are given a number to convert to a percent) by a 100. 2.5 × 100 = 250%. Your answer is B.

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A ball is thrown upward with an initial velocity of 60 mph. it is thrown from a height of 5 feet. what is the maximum height it
natima [27]

Answer:

h = 61.25 m

Step-by-step explanation:

It is given that,

The initial velocity of the ball, v = 60 m/s

It is thrown from a height of 5 feet, h_o=5\ ft

We need to find the maximum height it reaches. The height reached by the projectile as a function of time t is given by :

h=-16t^2+vt+h_0

Putting all the values,

h=-16t^2+60t+5 .....(1)

For maximum height, put

\dfrac{dh}{dt}=0\\\\\dfrac{-16t^2+60t+5}{dt}=0\\\\-32t+60=0\\\\t=\dfrac{-60}{-32}\\\\t=1.875\ s

Put t = 1.875 in equation (1)

h=-16(1.875)^2+60(1.875)+5\\\\h=61.25\ m

So, the maximum height reached by the ball is 61.25 m.

8 0
3 years ago
What is the y intercept of the line? X=24,36,48 and y= -8, 1, 10
goldenfox [79]

Answer:

y intercept = - 40

Step-by-step explanation:

x 24 36 48

y -8 1 10

y = ax + b

a is the gradient (or slope).

b = y intercept.

a = (48-36) / (10-1) = 12/9

Rewrite to solve for b, which means it starts with b = ...

b = y - 12/9 * x

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b = -8 - (12/9 * 24)

b = y intercept = - 40

4 0
3 years ago
PLLKEEASE HELPPPPPPP ASAPP
erica [24]

Answer:

x = 19

Step-by-step explanation:

(5x + 4)° + (x - 2)° + (3x + 7)° = 180°

(5x + x + 3x)° + (4 - 2 + 7)° = 180°

9x° + 9° = 180° → ÷9

x + 1 = 20

x = 20 - 1

x = 19

7 0
2 years ago
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Vsevolod [243]

Answer:

A. tan(2π/3) = -\sqrt{3}

4 0
2 years ago
A car travels 120 miles at the speed of 48 miles per hour. Find the time taken for the journey using the formula d = rt.
AysviL [449]

Answer:

2 hours

Step-by-step explanation:

Car travels from A to B at 60 miles/hour. Time of travel = 120/60 = 2 hour. Average speed of round trip = (120+120)/(2+3) = 48 miles per hour.

5 0
2 years ago
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