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1 year ago

PLEASE HELP ME!!! WILL GIVE YOU A FOLLOW

Mathematics

1 answer:

Dvinal [7]1 year ago

5 0

4/10^2 = 0.04
which is equal to:
4x10^-2
As there are two digits behind the decimal point up to( and including the 4) thus the 10^-2
And as the digit is a 4 you multiply 10^-2 by 4

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Find the area of the circle r=14m use pi=3.14 and round your answer to the nearest hundredth

pantera1 [17]

Answer:

<h2>The answer is 615 m²</h2>

Step-by-step explanation:

Area of a circle = πr²

where

r is the radius

From the question

r = 14 m

π = 3.14

The area of the circle is

A = 3.14 × ( 14 ) ²

= 3.14 × 196

= 615.44

We have the final answer as

<h3>615 m² to the nearest whole number</h3>

Hope this helps you

7 0

3 years ago

a fair coin is flipped 10 times. what is the probability of getting the same number of heads and tails

Dafna11 [192]

If you flip a coin one time, the probability to get a Head is

p = 1/2

The probability of not getting a head in a single toss is :

q = 1 - 1/2 = 1/2

Thus there is only one unique situation to get the same number of heads and tails : in 10 toss you need to get exactly five heads, it will means that the rest is the tails.

Now using Binomial theorem of probability, the probability of getting exactly x = 5 heads in a total of n = 10 tosses is :

P(X = 5) = $\frac{10!}{5!*5!} *(\frac{1}{2})^{5} *(\frac{1}{2})^{5}$ ≈ 0.246

So the probability of that is 24,6 %

Good Luck

3 0

2 years ago

I need to 2,4,6,8 <br> But please send me the work too

Ugo [173]

ok for number 2.) 2+8+1+5+1+3+1+7+5+4+3+1=41 and 41 divided by the number of number which is 12= 3.41666666667

the mean for number 2 is 3.41666666667.

for the median you put the number from least to greatest, like so:

1, 1, 1, 1, 2, 3, 3, 4, 5, 5, 7, 8.

The middle is 3 and 3 so 3+3 divided by 2 is 6 so the median is 6.

I cant do mode but range is 8-1 divided by 2

4 0

3 years ago

Kenneth signed up to receive Internet service for $13 per month plus a $30 start-up fee. Which equation could be used to find th

zimovet [89]

The equation 13x+30=134 can be used to find the number of months Kenneth can receive internet service.

Step-by-step explanation:

Given,

Start up fee to receive internet = $30

Per month charges = $13

Total amount = $134

Let,

x be the number of months.

y be the total cost.

y = 13x+30

Putting y=134

$134=13x+30\\13x+30=134$

The equation 13x+30=134 can be used to find the number of months Kenneth can receive internet service.

Keywords: equation, addition

Learn more about addition at:

#LearnwithBrainly

7 0

3 years ago

A deli offers 2 platters of sandwiches. Platter A has 2 roast beef and 3 turkey sandwiches. Platter B has 3 roast beef and 2 tur

erica [24]

Answer:

2 x+3 y and 3 x+ 2 y

Step-by-step explanation:

Let x represents the number of roast beef and y represents the number of turkey sandwiches.

Let r and t represent cost of the roast beef and sandwich.

Platter A:

Platter A has 2 roast beef and 3 turkey sandwiches. So, equation is 2 x+3 y.

Total cost of the platter = 2 r x+3 t y

Platter B:

Platter B has 3 roast beef and 2 turkey sandwiches. So, equation is 3 x+2 y.

Total cost of the platter = 3 r x+2 t y

So, the two equations are 2 x+3 y and 3 x+ 2 y.

7 0

3 years ago