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3 years ago

Plz help me if u don’t mind A)65 B)72 C)79

Mathematics

1 answer:

Marianna [84]3 years ago

7 0

Answer:

it is B

Step-by-step explanation:

i hope this helps

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3 + (5 + 7) Use the commutative property of operations to reverse the numbers in the expression. Use the associative property of

Fantom [35]

Answer:

commutative property:

A + B = B + A

So we have

3 + (5 + 7) = (5 + 7) + 3

Now distributive means that:

A + (B + C) = (A + B) + C

So (5 + 7) + 3 = 5 + (7 + 3)

now the equation is easier to solve, because 7 + 3 = 10

5 + (7 + 3) = 5 + 10 = 15

3 0

3 years ago

Read 2 more answers

Need help on how to solve

Salsk061 [2.6K]

Answer:

Step-by-step explanation:

64 = 2x^2

32 = x^2

x = 4√2

ans is b

3 0

3 years ago

How to find g(x) from parent function f(x)=2x-1 when the vertical translation is 4 units down

Ivan

g(x), the new function, is shifted down 4 from the original f(x)=2x-1

Shifting down 4 is negative, so it would be subtracting 4 from the original

g(x)= 2x-1 -4

g(x) = 2x-5

5 0

4 years ago

The number of typographical errors on a page of the first booklet is a Poisson random variable with mean 0.2. The number of typo

muminat

Answer:

The required probability is 0.55404.

Step-by-step explanation:

Consider the provided information.

The number of typographical errors on a page of the first booklet is a Poisson random variable with mean 0.2. The number of typographical errors on a page of second booklet is a Poisson random variable with mean 0.3.

Average error for 7 pages booklet and 5 pages booklet series is:

λ = 0.2×7 + 0.3×5 = 2.9

According to Poisson distribution: $P(k{\text{ events in interval}})={\frac {\lambda ^{k}e^{-\lambda }}{k!}}$

Where $\lambda$ is average number of events.

The probability of more than 2 typographical errors in the two booklets in total is:

$P(k > 2)= 1 - {P(k = 0) + P(k = 1) + P(k = 2)}$

Substitute the respective values in the above formula.

$P(k > 2)= 1 - ({\frac {2.9 ^{0}e^{-2.9}}{0!}} + \frac {2.9 ^{1}e^{-2.9}}{1!}} + \frac {2.9 ^{2}e^{-2.9}}{2!}})$

$P(k > 2)= 1 - (0.44596)$

$P(k > 2)=0.55404$

Hence, the required probability is 0.55404.

4 0

3 years ago

four friends go out for lunch. Each person orders 1 drink for 1.50 and 3 tacos. the total cost for all 4 people is $24. what is

oee [108]

Answer:

$4.5

Step-by-step explanation:

First, multiply 1.50 by 4 (since that how many friends there are)

1.5 * 4 = 6

Second, subract 24 by 6

24 - 6 = 18

Finally, divide 18 by 4

18 / 4 = 4.5

And there, the answer is $4.5. Hoped this helped :))

3 0

2 years ago