3 years ago

Somebody help please with workout

Mathematics

1 answer:

svlad2 [7]3 years ago

6 0

If you need help with a workout your going to need a trainer.

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Find the sum or difference 1/2 - 1/14 A.3/7 B.2/7 C.4/7

pogonyaev

Answer:

A.3/7

Step-by-step explanation:

1/2 - 1/14

We need to get a common denominator of 14

1/2 * 7/7 = 7/14

7/14 - 1/14 = 6/14

We can simplify by dividing the top and bottom by 2

3/7

7 0

3 years ago

The sum of a number and five is at least 5?

Juli2301 [7.4K]

Hello! For this type of problem, the sum is addition. Therefore, you add n and 5. The inequality for this question would be n + 5 >= 5. At least would mean a greater than or equal to symbol. If you need the answer as the value of n, n >= 0.

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3 years ago

Find the average value of the function on the given interval. f(x)=ex/7; [0,7]

Anastaziya [24]

Answer:

$f_{avg}=e-1$

Step-by-step explanation:

We are given that a function

$f(x)=e^{\frac{x}{7}}$

We have to find the average value of function on the given interval [0,7]

Average value of function on interval [a,b] is given by

$\frac{1}{b-a}\int_{a}^{b}f(x)dx$

Using the formula

$f_{avg}=\frac{1}{7-0}\int_{0}^{7}e^{\frac{x}{7}} dx$

$f_{avg}=\frac{1}{7}[e^{\frac{x}{7}}\times 7)]^{7}_{0}$

By using the formula

$\int e^{ax}=\frac{e^{ax}}{a}$

$f_{avg}=(e-e^0)=e-1$

Because $e^0=1$

$f_{avg}=e-1$

Hence, the average value of function on interval [0,7]

$f_{avg}=e-1$

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3 years ago

Sue has 37 baseball cards. The next week, she buys 5 more and then 5 more each week. When will she have 122 baseball cards? A. 1

sertanlavr [38]

Answer:

I am pretty sure its A.week 18

Step-by-step explanation:

just add 5 untill you get 122

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3 years ago

What is the solution of 1/x+1/3<1/5 ?

noname [10]

Step-by-step explanation:

hope it helps thanks this is the answer

8 0

2 years ago