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3 years ago

Marking brainliest for a simple math problem

Mathematics

1 answer:

nalin [4]3 years ago

7 0

Answer:

B. 88

Step-by-step explanation:

the total data = 1+2+4+5 = 12

the median is (a6+a7) /2

a6 = 87, a7 = 89

so, the median = (87+89)/2 = 88

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Find midpoint of CD C=(10,-1)and D=(6,3)

antoniya [11.8K]

Answer:

(8,1)

Step-by-step explanation:

The x coordinate of the midpoint is

(10+6)/2 = 16/2 =8

The y coordinate of the midpoint is

(-1+3)/2 = 2/2 =1

The midpoint is (8,1)

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

The fraction a/b must be equal to which expression

OlgaM077 [116]

Answer:

Step-by-step explanation:

3 0

3 years ago

Al simplificar la fraccion 150/600 a su mínima expresión se obtiene 15/6<br>

zaharov [31]

Answer:

cierto

Step-by-step explanation:

8 0

3 years ago

Help me zzjjdjdhsujshf I don't enough time pls for God sake help me

denis23 [38]

Answer:

I think 138 probably

Step-by-step explanation:

6 0

4 years ago

Marking brainliest for a simple math problem​

Marking brainliest for a simple math problem