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3 years ago

Select the correct answer.

Mathematics

1 answer:

Olenka [21]3 years ago

8 0

Answer:

its all cojumbled try to make it more specific

Step-by-step explanation:

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Evaluate -2 x 2y , if x = -3 and y = -1. -12 -18 18 12

Rina8888 [55]

Answer:

-559872

Without adding in the additonal Numbers

-4xy

Step-by-step explanation:

Im most likely way off so please, i am Not going to guarantee that this answer is correct

(This is the first time ive been unsure of my Answer so please take my warning into consideration)

8 0

3 years ago

The number of accidents on a certain section of I-40 averages 4 accidents per weekday independent across weekdays. Assuming the

AysviL [449]

Answer:

1.83% probability there are no car accidents on that stretch on Monday

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given time interval.

The number of accidents on a certain section of I-40 averages 4 accidents per weekday independent across weekdays.

This means that $\mu = 4$

What is the probability there are no car accidents on that stretch on Monday?

This is P(X = 0).

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-4}*(4)^{0}}{(0)!} = 0.0183$

1.83% probability there are no car accidents on that stretch on Monday

5 0

3 years ago

What simple interest rate would allow $6000 to grow to an amount of $14550 in 10 years?

Harman [31]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{ \: 14.25 \: \% \: }}}}}$

Step-by-step explanation:

Given,

Principal ( P ) = $ 6000

Amount ( A ) = $ 14550

Time ( T ) = 10 years

Rate ( R ) = ?

Finding the Interest

The sum of principal and interest is called an amount.

From the definition,

$\boxed{ \sf{Amount = \: Principal + Interest}}$

plug the values

⇒ $\sf{14550 = 6000 + Interest}$

Swap the sides of the equation

⇒ $\sf{6000 + Interest = 14550}$

Move 6000 to right hand side and change its sign

⇒ $\sf{Interest = 14550 - 6000}$

Subtract 6000 from 14550

⇒ $\sf{Interest = \: 8550 \: }$

Interest = $ 8550

Finding the rate 

${ \boxed{ \sf{Rate = \frac{Interest \times 100}{Principal \times Time}}}}$

plug the values

⇒ $\sf{ Rate = \frac{8550 \times 100}{6000 \times 10} }$

Calculate

⇒ $\sf{Rate = \frac{855000}{60000} }$

⇒ $\sf{Rate = 14.25 \: \% \: }$

Hope I helped!

Best regards!!

8 0

3 years ago

Serenity Spa charges $59 for a one hour massage. They charge $0.95 per minute for each additional minute over an hour. If

Yanka [14]

Answer:

D. y = 0.8x + 79

Choices:

y = 79x + 0.8

y = -0.8x + 79

y = 79.8x

y = 0.8x + 79

5 0

3 years ago

Find the price per ounce rounded to the nearest cent: 1 lb 10 oz for $10.98.

Pachacha [2.7K]

Answer is C.) $0.42/oz

3 0

3 years ago