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3 years ago

A number changed to 3.25 after it was rounded. To what place was the number rounded?

2 answers:

5 0

The number was rounded to the nearest hundredth.

Before it was rounded, it was somewhere between 3.2450 and 3.2549999 .

AlladinOne [14]3 years ago

5 0

2 decimal places because there is only 2 numbers behind the decimal point.

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(U...

Tresset [83]

Answer:

the 19th term of the arithmetic sequence is 73.

Step-by-step explanation:

Given:

The arithmetic sequence whose common difference is

$d=4$

And first term is

$a=1$

Find the 19th term of the arithmetic sequence

$n=19$

Now we know that,

$a_{n}=a+(n-1)d$

Put all the value in above AP.

$a_{19}= 1+(19-1)4$

$a_{19}= 1+18\times 4$

$a_{19}= 1+72$

$a_{19}= 73$

So, $19_{th}$ term of the sequence is 73.

3 0

3 years ago

Adrian has 12 pounds of coffee. He wants to repackage the coffee into bags of 2/3 pounds. How many bags of coffee can he make?

levacccp [35]

Answer:

18 bags of coffee

Step-by-step explanation:

12 divided into 2/3 is the same as 12 multiplied by 3/2

12 x (3/2) = 18

18 bags x( 2/3) pounds of coffee each = 12 pounds of coffee

4 0

3 years ago

Let X = the time between two successive arrivals at the drive-up window of a local bank. If X has an exponential distribution wi

LuckyWell [14K]

Answer:

a) E(X)=1

b) σ=1

c) P(X>1)=0.368

d) P(2<X<5)=0.128

Step-by-step explanation:

We have X: "the time between two successive arrivals at the drive-up window of a local bank", exponentially distributed with λ = 1.

a) We have to compute the expected time between two successive arrivals.

The expected value for X as it is exponentially distributed is:

$E(X)=\dfrac{1}{\lambda}=\dfrac{1}{1}=1$

b) We have to compute the standard deviation of X.

The standard deviation is calculated as:

$\sigma=\dfrac{1}{\lambda}=\dfrac{1}{1}=1$

c) The probability that X is larger than 1 (P(X>1))

We can express the probability as:

$P(X>t)=e^{-\lambda t}\\\\P(X>1)=e^{-\lambda\cdot 1}=e^{-1}=0.368$

d) The probability that X is between 2 and 5 (P(2<X<5))

$P(X>t)=e^{-\lambda t}\\\\\\P(25)\\\\P(2$

4 0

3 years ago

Convert 50 feet per second to miles per hour. 5280 ft = 1 mi Round to the nearest hundredth.

alexandr1967 [171]

Sent a picture of the solution to the problem (s).

4 0

3 years ago

a deli sells a sandwich spread for $6.40 per pound. How much do you have to pay for 24 ounces of the spread. (hint: 16 ounces in

ehidna [41]

24 ounces = 1,5pound
1pound= 6,40$
1,5pound=???
you do the math :):)

7 0

3 years ago

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