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2 years ago

Find the rate of change from 1 minute to 2 minutes

Mathematics

1 answer:

monitta2 years ago

6 0

Answer is 200 ft.per minut

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SIERENCE

Svetllana [295]

B for sure because yes

8 0

3 years ago

Write in exponent form 85

Nataly [62]

We are given 85

Firstly, we will find all possible factors of 85

we can write it as

$85=1*5*17$

so, exponential form is

$85=5^1*17^1$ ................Answer

4 0

3 years ago

Use substitution to solve the sy<br> 2x+3y = 19<br> x = 2y-1<br> Solve for x and y

svp [43]

Answer: Y=3, X=5

Step-by-step explanation:

2(2y-1) + 3y=19

4y-2+ 3y=19

7y=21

Y=3

Plug in y in the second equals

X=2(3) -1

X=6-1

X=5

Hope this helps!

8 0

3 years ago

A car has mass 1500 kg and is traveling at a speed of 35 miles/hour. what is its kinetic energy in joules? (Be sure to convert m

photoshop1234 [79]

Answer:

Factor by which kinetic energy increase = 4 times

Step-by-step explanation:

Given,

Mass of the car, v1 = 1500 kg

initial speed of car = 35 miles/h

$=\dfrac{35\times 1609.34}{3600}\ m/s$

= 15.64 m/s

Initial kinetic energy of the car is given by,

$k_1\ =\ \dfrac{1}{2}.m.v_1^2$

$=\ \dfrac{1}{2}\times 1500\times (15.64)^2\ joule$

= 183606.46 J

Final velocity of car v2 = 70 miles/hour

$=\dfrac{70\times 1609.34}{3600}$

= 31.29 m/s

So, final kinetic energy of car is given by

$k_2\ =\ \dfrac{1}{2}.m.v_2^2$

$=\ \dfrac{1}{2}\times 1500\times (31.29)^2$

= 734425.84 J

Now, the ratio of final to initial kinetic energy can be given by,

$\dfrac{k_2}{k_1}=\ \dfrac{734425.84}{183606.46}$

$=>\ k_2\ =\ 4k_1$

Hence, the kinetic energy will increase by 4 times.

7 0

2 years ago

Find the total surface area of the rectangular prism 7.1 2.8 3.2

krek1111 [17]

lol

Step-by-step explanation:

5 0

2 years ago