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3 years ago

Which of the following is not a proportion?

Mathematics

2 answers:

tia_tia [17]3 years ago

5 0

I believe it’ll be 4/10 = 12/20

Luda [366]3 years ago

4 0

4/10=12/20

Because if you divide 12/20 by two you get 6/10 Nd it’s not equal to 4/10

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A stock price is losing value at a rate of 4 cents every minute. After 15 minutes, the price of the stock is $10.24 (1024 cents)

Sveta_85 [38]

Jesus ew math bruh. Anyway let’s sing the campfire

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6 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

3 years ago

Simplify the expression. 7c3 • –5c7

Sidana [21]

Answer:

-35c^12

Step-by-step explanation: Hope this helped.

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3 years ago

(0, 4) and (4,0)<br> Rate of Change: <br> b=

yawa3891 [41]

Answer:

b=4

Step-by-step explanation:

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3 years ago

How many different arrangements can be made using 3 letters from the word QUESTION?

yan [13]

Do you mean how many different words can be made from using only 3 letters from the word "question"? Are they supposed to be the same 3 letters?

ton, son, not, sue, sit

6 0

3 years ago

Read 2 more answers