3 years ago

Plz help me! I need an answer right away

Mathematics

1 answer:

Wewaii [24]3 years ago

8 0

The answer is G ( 1/9 )

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A man walks at 60km/ hr. How long does he walks between 9:30 am and 12 noon

N76 [4]

Answer:

He walks 150 km in 2.5 hours.

Step-by-step explanation:

From 9:30 a.m. to noon, it's 2.5 hours.

distance = speed * time

distance = 60 km/h * 2.5 h

distance = 150 km

Answer: He walks 150 km in 2.5 hours.

3 0

3 years ago

X/24 = 30/36 pls help i might know the answer but i want someone to confirm it

gavmur [86]

Answer:

Step-by-step explanation:

x/24 = 30/36 simplify

x/24 = 5/6 divide 24 by 6 is 4; multiply 4 by 5

x= 20

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3 years ago

Express 35.4% as a decimal.

lakkis [162]

It is because the 35.4% divided the 100% total is B. 0.354

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3 years ago

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A line passes through the points (6,5) and (2,2) .

Rashid [163]

First is yes
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Third is no
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3 years ago

At time t, the position of a body moving along the s-axis is sequalsnegative t cubed plus 15 t squared minus 72 t m. a. Find t

larisa [96]

Answer:

Step-by-step explanation:

Given that at time t, the position of a body moving along the s-axis is sequalsnegative t cubed plus 15 t squared minus 72 t m

i.e. $s(t) = -t^3+15t^2-72 t$

Velocity is nothing but s'(t) = derivative of s

and acceleration is s"(t) = derivative of v(t)

$v(t) = -3t^2+30t-72\\=-3(t^2-10t+24)\\= -3(t-6)(t-4)$

a) v(t) =0 when t = 4 or 6

b) $a(t) = -6t+30$

a(t) =0 when t =5

c) Distance travelled by the body from 0 to 5 would be

$s(5)-s(0)\\= -5^3+15(5^2)-72(5)\\= -125+375-360\\=-110$

i.e. 110 miles (distance cannot be negative)

3 0

3 years ago