All categories

3 years ago

Plz do this i will mark you brainlist and thats for 70 points!!!!

Mathematics

2 answers:

My name is Ann [436]3 years ago

8 0

Answer:

First find the circumference of both wheels

C = pi d

Large wheel = 3.14 * 60

= 188.4

Small wheel = 3.14 * 18

= 56.52

Divide them both with divide 600 by the circumference

Large wheel = 600/188.4 = 3.18 or 3 rotations

Small wheel = 600/56.52 = 10.61 or 11 rotations

b. 2 large wheels. This is because you can cover more distance with large wheels that small wheels. Large wheels are also worth the energy.

Hope this helps

finlep [7]3 years ago

8 0

Answer:

A: The large tire makes 3 rotations, and the small tire makes 11 rotations.

B: This part of the answer you answer because its asking for your opinion! ;)

Step-by-Step Explanation:

You must find the circumference of the big tire, and the small tire.

C= $\pi$ d

The large tire this means:

$C= 3.14(60)=188.4$

Dividing 600/188.4 we get 3 rounded to the nearest whole number.

For the small tire:

$C=3.14 (2*9)=3.14(18)=56.52\\Dividing 600/56.52, we get to the (nearest whole number), 11 small tire rotation.$

You might be interested in

On Mars the acceleration due to gravity is 12 ft/sec^2. (On Earth, gravity is much stronger at 32 ft/sec^2.) In the movie, John

insens350 [35]

Solution :

Given initial velocity, v= 48 ft/s

Acceleration due to gravity, g = $12\ ft/s^2$

a). Therefore the maximum height he can jump on Mars is

$H_{max}=\frac{v^2}{2g}$

$H_{max} = \frac{(48)^2}{2 \times 12}$

= 96 ft

b). Time he can stay in the air before hitting the ground is

$T=\frac{2v}{g}$

$T=\frac{2 \times 48}{12}$

= 8 seconds

c). Considering upward motion as positive direction.

v = u + at

We find the time taken to reach the maximum height by taking v = 0.

v = u + at

0 = 16 + (12) t

$t=\frac{16}{12}$

$=\frac{4}{3} \ s$

We know that, $S=ut + \frac{1}{2}at^2$

Taking t = $=\frac{4}{3} \ s$ , we get

$S=16 \times\frac{4}{3} + \frac{1}{2}\times(-12) \times \left(\frac{4}{3}\right)^2$

$S=\frac{32}{3}$ feet

Thus he can't reach to 100 ft as it is shown in the movie.

d). For any jump whose final landing position will be same of the take off level, the final velocity will be the initial velocity.

Therefore final velocity is = -16 ft/s

3 0

3 years ago

Solve for x x^9=12^2x12^7

jekas [21]

Answer:

Step-by-step explanation:

Hi!

Here is your answer,

I will explain in step by step,

${x}^{9} = {12}^{2} \times {12}^{7}$

Here we can simplify this further using this law,

${a}^{m} \times {a}^{n} = {a}^{m + n}$

So we will get,

${x}^{9} = {12}^{7 + 2} \\ {x}^{9} = {12}^{9}$

Since the powers are same we can cancel it out and we will get,

$x = 12$

(Hope this answer helped :))

4 0

3 years ago

Easy question!!

Xelga [282]

Answer:

136 ft^2

Step-by-step explanation:

Surface area = 2 [ (l*w) + (l*h) + (w*h) ]

= 2 [ (8*3) + (8*4) + (4*3) ]

= 136 ft^2

4 0

3 years ago

Suppose that the probability that a customer plans to make a purchase is 0.32. Suppose that the probability of responding to an

Elanso [62]

Answer:

0.6495

Step-by-step explanation:

This is question based on conditional probability

The probability that a customer plans to make a purchase = 0.32.

The probability that a customer plans not to make a purchase = 1 - 0.32

= 0.68

The probability of responding to an advertisement given that the customer plans to make a purchase = 0.63

The probability of responding to an advertisement given that a person does not plan to make a purchase = 0.16.

Given that a person responds to the advertisement, what is the probability that they plan to make a purchase is calculated as:

0.32 × 0.63/(0.32 × 0.63) + (0.16 × 0.68)

= 0.2016/ 0.2016 + 0.1088

= 0.2016/0.3104

= 0.6494845361

Approximately = 0.6495

8 0

3 years ago

What is the coefficient in the expression shown? 42 + 2c 2 42 c 2c

GaryK [48]

Answer:

The coefficient is 2

6 0

3 years ago

Read 2 more answers

Plz do this i will mark you brainlist and thats for 70 points!!!!​

Plz do this i will mark you brainlist and thats for 70 points!!!!