All categories

3 years ago

5

Mathematics

1 answer:

Debora [2.8K]3 years ago

8 0

Now we add the two digital times 3×3000 we can buy four stars 10 my fours are worth 4×10 and T55 digitals no awesomely

You might be interested in

Suppose that prior to conducting a coin-flipping experiment, we suspect that the coin is fair. How many times would we have to f

STALIN [3.7K]

Answer: b) 84

Step-by-step explanation:

Let p be the prior estimate of the required proportion.

As per given , we have

p =0.5 (The probability of getting heads on a fair coin is 0.5)

Significance level : $\alpha: 1-0.90=0.10\\$

Critical z-value (using z-value table ) : $z_{\alpha/2}=1.645$

Confidence interval width : w= 0.18

Thus , the margin of error : $E=\dfrac{w}{2}=0.09$

Formula to find the sample size ( if prior estimate of proportion is known.):-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$

Substitute the values , we get

$n=0.5(1-0.5)(\dfrac{1.645}{0.09})^2$

Simplify ,

$n=83.5192901235\approx84$ [Round of to the next whole number.]

Hence, the number of times we would have to flip the coin =<u>84</u>

hence, the correct answer is b) 84

8 0

3 years ago

Which statements about mass are true?

viva [34]

Answer:

1=false 2=false 3=true 4=true 5=false 6=false

Step-by-step explanation:

5 0

2 years ago

Help me plssssssss this is a math question

Flura [38]

“My neighbor owns his own property” your book said non mathematical, but tell me if it’s supposed to be. I can write you a new one.

8 0

3 years ago

What is the approximate volume of the cone?

KonstantinChe [14]

Answer:

157 cm³

Step-by-step explanation:

Given

Radius (r) = 5 cm

height (h) = 6 cm

Volume of the cone (V) = ?

We have the formula

V = 1/3 *π*r²*h

V = 1/ 3 * 3.14 * 5² * 6

V = 157 cm³

Hope it will help :)

7 0

3 years ago

There is a line whose y-intercept is 5 and whose slope is 1. What is its equation in

Mkey [24]

Answer:

y = x + 5

Step-by-step explanation:

y = mx + b

m -> slope ; m = 1

b -> y-intercept ; b = 5

y = 1x + 5

3 0

2 years ago