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3 years ago

What is 90a + (78b - 56e) - 46 + 981c ?

Mathematics

2 answers:

bija089 [108]3 years ago

8 0

What is the variables replacement

Anestetic [448]3 years ago

8 0

The answer is two for the formula

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For a binomial probability distribution, it is unusual for the number of successes to be less than μ − 2.5σ or greater than μ +

ELEN [110]

Answer:

no of success deemed to be usual 5

that is more than 5 success unusual

Step-by-step explanation:

Given data

number of successes = less than μ − 2.5σ

number of successes = greater than μ + 2.5σ

trials n = 10

probability single trial = 0.2

to find out

is it unusual to have more than five successes

solution

we can say that

mean of the binomial, distribution that is

mean = probability single trial × trials n

mean = 10 × .2

mean = 2

and standard deviation = √(mean× (1-probability))

standard deviation = √2× (1-0.2))

standard deviation = 1.2649

so no of successes are

= μ − 2.5σ and = μ + 2.5σ

= 2 − 2.5(1.2649) and = 2 + 2.5(1.2649)

= -0.16225 and = 5.16225

so now we say no of success deemed to be usual 5

that is more than 5 success unusual here

5 0

3 years ago

Help please...................

katrin [286]

Answer:

If we are working in a coordinate plane where the endpoints has the coordinates (x1,y1) and (x2,y2) then the midpoint coordinates is found by using the following formula:

midpoint=(x1+x22,y1+y22)

Step-by-step explanation:

8 0

3 years ago

What is the next number in the sequence?<br> 1, 4, 13, 40, 121,...

Nataliya [291]

The pattern here is the number times 3 then plus 1

We can check this by plugging it in.

1×3=3
3+1=4
4 is the next number in our sequence so the pattern works.

We can continue to check this with the rest of our sequence.

4×3=12
12+1=13
13 is the next number in our sequence so the pattern works.

13×3=39
39+1=40
40 is the next number in our sequence so the pattern works.

40×3=120
120+1=121
121 is the next number in our sequence so the pattern works.

We can find the next numbed in the sequence by continuing the patter
121×3=363
363+1=364

So the next number in the sequence is 364

8 0

3 years ago

i need the answer no playing around please and if the answer is right i will give you a thanks and full stars pleaseeeee

MrRa [10]

Answer:

50+50x

Step-by-step explanation:

they're asking you to use distributive property

so what you have to do is multiply everything that is in the parenthesis by 10

5x10=50

5x10x=50x

so the answer is 50+50x

have a great day :D

7 0

3 years ago

Read 2 more answers

A cake recipe calls for 1 cup of oil. Jean needs to make 12 cakes for her school bake sale. How many quarts of oil will Jean nee

kipiarov [429]

Hey there,

Each cake recipe would call for $\boxed{1}$ cup of oil.

So if she is going to make 12 cakes, this would include that she
would need to use 12 cups of oil.

$\boxed{12}$ would be your answer!

Hope this helps.
~Jurgen

7 0

3 years ago

Read 2 more answers