All categories

3 years ago

The number 1,645.6 expressed in scientific notation equals

Mathematics

1 answer:

grin007 [14]3 years ago

8 0

Answer:

$1.6456 * 10^{3}$

Step-by-step explanation:

Step 1: Convert to Scientific Notation

$1645.6$ is in standard notation

$1.6456 * 10^{3}$ is in scientific notation

Answer: $1.6456 * 10^{3}$

You might be interested in

A.) 61 B.) 48.8 C.) 39

soldier1979 [14.2K]

Answer:

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Jamie lost 27 pounds in 1 year . on avarage how many pounds did jamie lose per month

Ratling [72]

Well you will divide 27 by 12 because there are 12 months in a year to get 2.25 lbs per month, you go gurl, way to work out and loose weight:):) gope I helped

7 0

3 years ago

Read 2 more answers

In the diagram m angle ACB = 61 Find m angle BCD

Marina86 [1]

we are given that

angle(ACF)=90

angle(ACB)=61

sum of all angles along any line is 180

so, we get

angle(ACF)+angle(ACD)=180

we can plug value

90+angle(ACD)=180

angle(ACD)=90

now, we can use formula

angle(ACD)=angle(ACB)+angle(BCD)

now, we can plug values

and we get

90=61+angle(BCD)

90-61=61-61+angle(BCD)

angle(BCD)=29................Answer

7 0

3 years ago

Read 2 more answers

Find the value of h(-7) for the function below.

vovikov84 [41]

Answer:

B. 138.7

Step-by-step explanation:

Put the given number where the variable is and do the arithmetic.

h(x) = 5.7 -19x

h(-7) = 5.7 -19(-7) = 5.7 +133 = 138.7

6 0

3 years ago

Read 2 more answers

The probability that your call to a service line is answered in less than 30 seconds is 0.85. Assume that your calls are indepen

aev [14]

Answer:

a) 0.1720

b) 0.8298

c) 19

Step-by-step explanation:

For each call, there are only two possible outcomes. Either they are answered in less than 30 seconds. Or they are not. The probabilities for each call are independent. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

In this problem we have that:

$p = 0.85$

(a) If you call 12 times, what is the probability that exactly 9 of your calls are answered within 30 seconds? Round your answer to four decimal places (e.g. 98.7654).

This is $P(X = 9)$ when $n = 12$ .

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 9) = C_{12,9}.(0.85)^{9}.(0.15)^{3} = 0.1720$

(b) If you call 20 times, what is the probability that at least 16 calls are answered in less than 30 seconds? Round your answer to four decimal places (e.g. 98.7654).

This is $P(X \geq 16)$ when $n = 20$