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2 years ago

Find the circumferences of of both circles to the nearest hundredth.

Mathematics

2 answers:

siniylev [52]2 years ago

4 0

Answer:

28.28 ft , 44 fr

Step-by-step explanation:

Circumference of 1st circle = $\pi$ D = 22/7 ×9 = 198/7 = 28.28 ft

Circumference of 2nd circle = $\pi$ D = 22/7 × 14 = 44 ft

Harrizon [31]2 years ago

3 0

Answer:

Step-by-step explanation:

Yellow Circle:

9+2.5 = 11

2 x pi x 11= 69.115

Nearest hundredth = 69.12

Purple Circle:

9 divided by 2 = 4.5

2 x pi x 4.5 = 25.1327

Nearest hundredth = 25.13

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If 2 coins is flipped 200 time, how many times would youe expect to land on heads

Art [367]

Answer:

200 times

Step-by-step explanation:

400÷2=200

because the next 200 would be landing on tails

6 0

2 years ago

Read 2 more answers

Rico made a function table to illustrate the rate he charges for mowing lawns. Complete the table. Then write a function rule fo

Lesechka [4]

I think the correct answer is C. i hope this helps

7 0

2 years ago

A manufacturer of televisions subjects the equipment to a comprehensive testing process for all essential functions before the t

Scorpion4ik [409]

Answer:

The probability is $P(X \le 9) =0.9138$

Step-by-step explanation:

From the question we are told that

The probability of the television passing the test is p = 0.95

The sample size is n = 10

Generally the comprehensive testing process for all essential functions follows a binomial distribution

i.e

$X \~ \ \ \ B(n , p)$

and the probability distribution function for binomial distribution is

$P(X = x) = ^{n}C_x * p^x * (1- p)^{n-x}$

Here C stands for combination hence we are going to be making use of the combination function in our calculators

Generally the probability that at least 9 pass the test is mathematically represented as

$P(X \le 9) = P(X = 9) + P(X = 10 )$

=> $P(X \le 9) = [^{10}C_9 * (0.95)^9 * (1- 0.95)^{10-9}]+ [^{10}C_{10} * {0.95}^{10} * (1- 0.95)^{10-10}]$

=> $P(X \le 9) = [10 * 0.6302 * 0.05 ]+ [1 *0.5987 * 1 ]$

=> $P(X \le 9) =0.9138$

8 0

2 years ago

4. what is the value of x?

Eva8 [605]

Answer:

4. 21

5.120

Step-by-step explanation:

(the answer for #4

I added 5x+15 and 3x-3

and got

8x+12

and because we needed to find the value of x, l did this

8x+12=180

because interior consecutive angles equal 180

and I got 21

(answer for 5)

I then plugged 21 into 5x+15 because angle 1 is equal to it

5(21)+15

I got 120

6 0

2 years ago

For what value of x is the rational expression below undefined x-4/3x2-75

abruzzese [7]

The given expression is undefined when x = 5 OR x = -5

<h3>Undefined expression </h3>

From the question, we are to determine the value of x for which the given expression is undefined

The given expression is

x-4/3x²-75

An expression is undefined when the denominator equals zero

Thus, the expression is undefined when

3x² - 75 = 0

Now, we will determine the values of x in the equation above

3x² - 75 = 0

3x² = 75

x² = 75/3

x² = 25

x = ±√25

x = ±5

Hence, the given expression is undefined when x = 5 OR x = -5

Learn more on Undefined expression here: brainly.com/question/19815575

#SPJ1

7 0

1 year ago