All categories

3 years ago

Please help !!!! no wrong answers please please

Mathematics

1 answer:

Svetllana [295]3 years ago

3 0

Answer:

function

not a function

function

Step-by-step explanation:

You might be interested in

Assume each newborn baby has a probability of approximately 0.53 of being female and 0.47 of being male. For a family with four

Vitek1552 [10]

Answer:

0.3723

Step-by-step explanation:

Since the number of girls = X

Probability of girls p = 0.53

Probability of boys q = 0.47

Number of observation n = 4

A) conditions for binomial distribution are

1: The number of observations n must be fixed.

2: Each observation is independent. 3: Each observation represents one of two outcomes ("success" or "failure").

B) for the question n = 4

p (probability of success for girls) = 0.53

C) n=4, r (number of trials) = 2

Using binomial expansion

4C2 *(p)² *(q)² = 6* (0.53)² * (0.47)²

= 0.3723

Therefore, the probability of the family having two boys and two girls is 0.3723.

5 0

3 years ago

Which of the following is equivalent to the equation 4x+7y=z?

shtirl [24]

Answer:

x = 1.75y + 0.25z

Step-by-step explanation:

Simplifying

4x + -7y = z

Solving

4x + -7y = z

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '7y' to each side of the equation.

4x + -7y + 7y = 7y + z

Combine like terms: -7y + 7y = 0

4x + 0 = 7y + z

4x = 7y + z

Divide each side by '4'.

x = 1.75y + 0.25z

Simplifying

x = 1.75y + 0.25z

5 0

3 years ago

Read 2 more answers

If f(x)=2x and g(x)=−2x3+2x, then what is f(x)+g(x)?

Maurinko [17]

Answer:

$-2x^3+4x$

Step-by-step explanation:

I am assuming that the functions are:

$f(x)=2x\\\\g(x)=-2x^3+2x$

-----------------------

$f(x)+g(x)\\\\2x+-2x^3+2x\\\\2x+2x+-2x^3\\\\4x+-2x^3\\\\\boxed{-2x^3+4x}$

Hope this helps you!

3 0

3 years ago

A new car is purchased for 20000 dollars.The value of the cat depreciates at 12.5% per year.What will the value of the car be, t

NemiM [27]

Answer:

$460.38

Step-by-step explanation:

Use the exponential decay formula, y = C(1 - r)^t

Plug in the original price, depreciation rate, and amount of time:

y = 20000(0.875)^11

y = 460.38

So, the car's value after 11 years will be $460.38

6 0

3 years ago

If there is a 30% chance of sun tomorrow and a 40% chance of wind and no sun, what is the probability that it is windy, given th

stira [4]

A, 57%, because 0.40 divided by all possible outcomes, which is 0.70 because we know it will not be sunny tomorrow, is 0.57.

6 0

3 years ago

Read 2 more answers