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2 years ago

6

Mrs. Ackerman bought a beach ball for her classroom. The diameter of the beach ball measured 23 inches. Which of the following i

s the best estimate of the volume of the beach ball?

1 answer:

Helen [10]2 years ago

3 0

6370 in3

Step-by-step explanation:

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Please help i need it

vichka [17]

Answer:

x = 100

Step-by-step explanation:

The area of the left square is 3600

A =s^2

3600 = s^2

Taking the square root of each side

60 =s

The area of the right square is 1600

A =s^2

1600 = s^2

Taking the square root of each side

40 =s

Adding the lengths

60+40 =x

100 =x

3 0

3 years ago

The radius of the front wheel of Paul's bike is 63cm. Paul goes for a cycle and travels 69.89km. How many full revolutions did P

Rudiy27

Answer: $17,649$

Step-by-step explanation:

Given

The radius of the cycle is $r=63\ cm$

Distance traveled by Paul is $68.89\ km$

Distance traveled by one complete revolution of wheel is equivalent to circumference of wheel i.e.

$\Rightarrow 2\pi r\\\\\Rightarrow 2\times \dfrac{22}{7}\times 63\\\\\Rightarrow 396\ cm\ \text{or}\ \text{3.96}\ m$

No of revolution made by wheel

$\Rightarrow n=\dfrac{69.89\times 1000}{3.96}\\\\\Rightarrow n=17,648.9899\approx 17,649$

7 0

3 years ago

The average birth weight of elephants is 200 pounds. Assume that the distribution of birth weights is Normal with a standard dev

zhenek [66]

The birth weight of elephants at the 85th percentile is 262.16 pounds

<h3>What is the standard deviation?</h3>

Standard deviation is defined as the amount of variation or the deviation of the numbers from each other.

Given that:-

The average birth weight of elephants is 200 pounds $\mu$ = 200

The deviation of 60 pounds. $\sigma$ = 60

The birth weight of elephants at the 85th percentile. z = 85%= 1.036

Now from the formula of z-score:-

$z=\dfrac{x-\mu}{\sigma}\\\\\\z=\dfrac{x-200}{60}\\\\\\1.036\times 60=x-200\\\\\\x=\ \ 262.16\ pounds$

Hence the birth weight of elephants at the 85th percentile is 262.16 pounds

To know more about standard deviation follow

brainly.com/question/475676

#SPJ1

5 0

2 years ago

Can you guys please help me with this one, thanks

zhuklara [117]

Answer:

4 17/18

Step-by-step explanation:

you make the mixed numbers into improper fractions then you subtract them

5 0

3 years ago

What is a real love?

Mumz [18]

Real love is unconditional love. Love where your partner will love you no matter the circumstance. In real love, there is no such thing as disappointment, anger, jealousy, or irritation. It is so much more different than what most people have felt or will ever feel, or even want to feel. Real love is loving another person without needing anything in return.

Hope this answered your question. :)

4 0

3 years ago

Read 2 more answers