All categories

2 years ago

What is the circumference of this circle?

Mathematics

1 answer:

iVinArrow [24]2 years ago

8 0

Answer:

d = r x 2

2 x 2 = 4

circumference = πd

π4 = 12.5663706

C = 12.56

You might be interested in

Please help and show work so I can understand how too alive this question please

nataly862011 [7]

Answer:

she has 24 shoes

Step-by-step explanation:

12 x 2(pair)=24

8 0

3 years ago

Round each to the nearest cent.<br> $21.277<br> $967.46

Nat2105 [25]

Answer:

21.28 and 967.46

Hope it helps have a good night :)))))))))))))))))

3 0

3 years ago

8x^2-18x-5 <br> Help please

uysha [10]

Answer:

9.2

Step-by-step explanation:

8x^2-18x-5

64x-18x-5

46x=5

9.2

mark brainliest please

8 0

3 years ago

Read 2 more answers

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

Solve 8(x+2)=36.......

brilliants [131]

We have to use the Distributive Property in this equation.
By the Distributive Property,
$8(x+2)=36
$
becomes
$8x+16=36.$
Now we need to isolate x. Remember PEMDAS?
$8x=20$
$x=20/8$
Simplify the right side.
$x=10/4$
$x=5/2$

3 0

3 years ago

Read 2 more answers