1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
frutty [35]
3 years ago
10

Evaluate 20/y - 8/x + 3xy/x+y when x=2 and y=5

Mathematics
1 answer:
Lesechka [4]3 years ago
6 0
20(5)-8(2)+3(2-5)+5
100-16-9= 79
You might be interested in
The width of a rectangle is 7 meters greater than its length. If the area of the rectangle is 170 square meters, write the quadr
mamaluj [8]
In this case you divide 170 by 7 which = 24.29 so 24.29 is your answer, good luck.
5 0
3 years ago
Find the difference. 8.25 - (-1.9) <br> A.8.44 <br> B.6.35 <br> C.10.15 <br> D.-6.35
quester [9]

Answer:

C. 10.15

Step-by-step explanation:

If you left 8.25 and changed the minus sign to a addition sign and the -1.9 to just 1.9 and then add 8.25 + 1.9 together you will then get 10.15 a way to remember this is “leave, change, change,” you leave the first number and change the subtraction and negative number sign. :)

3 0
3 years ago
Read 2 more answers
Need help please assist me find the area of a regular hexagon
garri49 [273]

Answer:

The area of the regular hexagon is 166.3\ units^{2}

Step-by-step explanation:

we know that

The area of a regular hexagon can be divided into 6 equilateral triangles

so

step 1

Find the area of one equilateral triangle

A=\frac{1}{2}(b)(h)

we have

b=r=8\ units

h=4\sqrt{3}\ units ----> is the apothem

substitute

A=\frac{1}{2}(8)(4\sqrt{3})

A=16\sqrt{3}\ units^{2}

step 2

Find the area of 6 equilateral triangles

A=(6)16\sqrt{3}=96\sqrt{3}=166.3\ units^{2}

7 0
3 years ago
A certain radioactive material decays in such a way that the mass in kilograms remaining after t years is given by the function
Angelina_Jolie [31]

The mass of radioactive material remaining after 50 years would be 48.79 kilograms

<h3>How to determine the amount</h3>

It is important to note that half - life is the time it takes for the amount of a substance to reduce by half its original size.

Given the radioactive decay formula as

m(t)=120e−0.018t

Where

t= 50 years

m(t) is the remaining amount

Substitute the value of t

m(t) = 120e^-^0^.^0^1^8^(^5^0^)

m(t) = 120e^-^0^.^9

Find the exponential value

m(t) = 48.788399

m(t) = 48.79 kilograms to 2 decimal places

Thus, the mass of radioactive material remaining after 50 years would be 48.79 kilograms

Learn more about half-life here:

brainly.com/question/26148784

#SPJ1

7 0
2 years ago
How many different passwords can be made if it is three letters, followed by two digits, followed by a letter?
ohaa [14]

Infinitely many passwords can be made.

8 0
2 years ago
Other questions:
  • Which correctly identify a pair of congruent line segments? A)GH and JK B)GH and LM C)LM and NP D) AB and NP
    7·2 answers
  • Plz Help me with this question will give BRAINLIEST and 10 points!
    14·2 answers
  • Find an equation for the ellipse that satisfies the given conditions.
    14·1 answer
  • Perform the operation and reduce the answer fully. 1/2 / 7/6
    7·2 answers
  • Use the graph of the function f to determine the given limit.<br> Picture provided below
    9·2 answers
  • Factor the polynomial completely.
    5·2 answers
  • Find the area of the trapezoid
    9·1 answer
  • PLEASE HELP THANK YOU :)
    9·1 answer
  • Riley's mom has asked him to go to the
    10·2 answers
  • GET BRAINLIEST FOR THE CORRECT ANSWER AND EXPLANATION!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!