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3 years ago

At a currency exchange, 11 U.S. dollars can be exchanged for 10 Euros. How many U.S. dollars will you receive for 1 Euro?

Mathematics

1 answer:

Slav-nsk [51]3 years ago

3 0

Answer:

$1.22096

Step-by-step exanation:

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F(x) = 4x^3 + 7x^2-2x-1<br><br> G(x) = 4x-2<br><br> Find (f-g)(x)

Dmitriy789 [7]

(F-g)(x)=4x^3+7x^2-6x+1

4 0

3 years ago

Last year, a person wrote 126 checks. Let the random variable x represent the number of checks he wrote in one day, and assume

Arisa [49]

Answer: The mean number of checks written per day $=0.3452$

Standard deviation $=0.5875$

Variance $=0.3452$

Step-by-step explanation:

Given : The total number of checks wrote by person in a year = 126

Assume that the year is not a leap year.

Then 1 year = 365 days

Let the random variable x represent the number of checks he wrote in one day.

Then , the mean number of checks wrote by person each days id=s given by :-

$\lambda=\dfrac{126}{365}\approx0.3452$

Since , the distribution is Poisson distribution , then the variance must equal to the mean value i.e. $\sigma^2=\lambda=0.3452$

Standard deviation : $\sigma=\sqrt{0.3452}=0.5875372328\approx0.5875$

6 0

3 years ago

Write the following fractions in order of size.

MrMuchimi

Answer:

E,A,C,B,D

Step-by-step explanation:

make the denominator 12 and multiply e.g.3

3 0

3 years ago

Evaluating expressions

ad-work [718]

Step-by-step explanation:

6.) 8p = 8x9 = 72

8.) 4(d+7) = 4(-2+7) = 4(5) = 20

can't read all of 10 to give an answer

7 0

3 years ago

HELP, VERY EASY MATHS QUESTION

Helen [10]

Answer:

z=7

Step-by-step explanation:

area = ½ × (a + b) × h.

260 = 37 + 4z × 8 ×0.5

260/0.5 = 520

520/8=65

37 + 4z = 65

65-37 = 28

28/4=7

z=7

3 0

3 years ago

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