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2 years ago

Laila read 36 pages in 4 hours. Which expression can be used to find the number of pages she read per hour?

Mathematics

2 answers:

klio [65]2 years ago

3 0

Answer:

36 pages/4 hours

Step-by-step explanation:

The answer is 36 pages/4 hours

aliina [53]2 years ago

3 0

Answer:

36 pages /4 hours.

Step-by-step explanation:

In order to find how many pages aaila reads in one hour, we need to take the amount she read in 4 hours and divide it by 4.

This is because that will allow us to find, the amount she reads in one hour.

She read 36 pages in 4 hours.

Therefore, our expression is 36 pages /4 hours.

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Eric and mark went t a ball game and visited the concession stand.They each got a hot dog,and mark got a large soda and a bag of

LenKa [72]

The soda was $1.00.

Hot Dog- $3.50
Peanuts- $4.00

3.50+4.00= 7.50

Total paid is $11.50-$7.50= $4.00-$3.00(coupon)= $1.00

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2 years ago

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The number of years a radio functions is exponentially distributed with parameter λ = 1 8 . If Jones buys a used radio, what is

blsea [12.9K]

Answer:

$P(X>8)=e^{-1}$

Step-by-step explanation:

The exponential distribution is "the probability distribution of the time between events in a Poisson process (a process in which events occur continuously and independently at a constant average rate). It is a particular case of the gamma distribution". The probability density function is given by:

$P(X=x)=\lambda e^{-\lambda x}, x>0$

And 0 for other case. Let X the random variable that represent "The number of years a radio functions" and we know that the distribution is given by:

$X \sim Exp(\lambda=\frac{1}{8})$

We can assume that the random variable t represent the number of years that the radio is already here. So the interest is find this probability:

$P(X>8|X>t)$

We have an important property on the exponential distribution called "Memoryless" property and says this:

$P(X>a+t| X>t)=P(X>a)$

Where a represent a shift and t the time of interest.

On this case then $P(X>8|X>t)=P(X>8+t|X>t)=P(X>8)$

We can use the definition of the density function and find this probability:

$P(X>8)=\int_{8}^{\infty} \frac{1}{8}e^{-\frac{1}{8}x}dx$

$=\frac{1}{8} \int_{8}^{\infty} e^{-\frac{1}{8}x}dx$

$=[lim_{x\to\infty} (-e^{-\frac{1}{8}x})+e^{-1}]=0+e^{-1}=e^{-1}$

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2 years ago

ASAP PLS I NEED IT AND TY

mars1129 [50]

<h2>Dilations and Scale Factors</h2>

When we're solving with scale factors, we either divide or multiply.

If the shape becomes larger, we multiply to get the new length.

If the shape becomes smaller, we divide to get the new length.

<h2>Solving the Question</h2>

We're given:

Original side length is 2.5 units
Scale factor = 6

Because the shape becomes larger, we have to multiply the original side length by the scale factor, 6, to get the new side length.

2.5 x 6 = 15

Therefore, the missing side length is 15 units.

<h2>Answer</h2>

15 units

8 0

9 months ago

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Which is one way to check 102 ÷ 6 = 17

Bad White [126]

Hey, Imherkk!
You can check by using a calculator.
Another way is doing 17*6.
If you get 102(you do) then you're answer is right.
I hope this helps;)

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2 years ago

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For exponential functions which of the following expression is equal to [f(3)]^4]

Molodets [167]

Answer:

$F(3*4)$

Step-by-step explanation:

$Let\ exponential\ function\ F(x)=a^x\\\\F(3)=a^3\\\\\{F(3)\}^4=\{a^3\}^4\\\\\{F(3)\}^4=a^{3\times 4}...........eq(1)\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ as\ (m^n)^k=m^{nk}\\\\Now\ F(3*4)=a^{3\times 4}.......eq(2)\\\\From\ eq1\ and\ eq2\\\\\{F(3)\}^4=F(3\times 4)\\\\\{F(3)\}^4=F(3*4)$

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2 years ago