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
dsp73
2 years ago
13

lign="absmiddle" class="latex-formula">
Mathematics
2 answers:
RSB [31]2 years ago
5 0

Answer:

z = 5

Step-by-step explanation:

simplify

5/(z-25) first

turning it into

((0 - 3/z) + 7/4z) - 5/(z - 25) = 0

then simplify 7/4z

((0 - 3/z) + 7/4z) - 5/(z-25) = 0

when the fractions denominator is 0 then the numerator must be 0

turning the equation into

-25  *  (z - 5)  = 0

solve

-25   =  0

something that is not zero cannot equal zero.

z - 5 = 0

5 - 5 = 0

z = 5

hope this helps:)

ycow [4]2 years ago
4 0

Answer:

z = 1/4

Step-by-step explanation:

See attached image

You might be interested in
Each chef at "Sushi Emperor" prepares 15 regular rolls and 20 vegetarian rolls daily. On Tuesday, each customer ate 2 regular ro
Natali [406]

The answer would be: There were 2 chefs and 13 customers.

8 0
3 years ago
The sum of the number is 103.the second number is 4 times the third.the third number is 5 more then the first .what are the numb
Zigmanuir [339]

Answer:

13, 18, 72

Step-by-step explanation:

let x-5 represent the first number, since the first number is 5 less than the third number. let x represent the third number. let 4x represent the third number, since it's four times greater than the third number.

set up an equation, and make it equal to 103:

x-5+x+4x=103

solve:

6x-5=103

6x=108

x=18

so, the third number is 18.

the first number is equal to x-5, so:

18-5=13

the second number is equal to 4x, so:

4(18)=72

so, the three numbers are 13, 18, and 72.

4 0
2 years ago
What is the area of a regular nonagon (9 sides) with side length of 15 cm and apothem of 20.6 cm? Round the answer to the neares
Triss [41]
We know that

<span>The nine radii of a regular Nonagon divides into 9 congruent isosceles triangles
</span>therefore
[the area of <span>a regular nonagon]=9*[area of isosceles triangle]

</span>[area of isosceles triangle]=b*h/2------> 15*20.6/2----> 154.5 cm²
so
[the area of a regular nonagon]=9*[154.5]------> 1390.5 cm²

the answer is
1390.5 cm²

5 0
3 years ago
A plumber charges 14 of the cost of materials as a labor fee. If the materials for the current job cost $130.00, how much will t
Lena [83]

Answer: The answer is 0.1076923 per dollar.

Step-by-step explanation:

7 0
2 years ago
If f(x) = 7(x - 2) + 4(x + 1), what is f(2)? <br><br>O 9 <br>O 10<br>O 11 <br>O 12​
Jlenok [28]
I THINK it’s 11 .........
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which answer describes the function f(x) = x^6−x^4 ?<br><br> neither<br><br> even<br><br> odd
    12·2 answers
  • A man starts walking north at 2 ft/s from a point P. Five minutes later a woman starts walking south at 3 ft/s from a point 500
    8·1 answer
  • A store has a $489.99 item on sale for 50% off. What is the discount on this item?
    7·2 answers
  • What is the simplified expression for -3cd-df2c-4)-4d?
    11·1 answer
  • Is abc def name the postulates that applies
    13·1 answer
  • Please Help!!! the picture is below
    6·1 answer
  • SUPER EASY!!!! 30 points!!!!!! Easy Elamentray school HW !!!!!!!! PLZ HELP!!!!
    15·2 answers
  • What is the product of the two numbers, written in scientific notation?
    12·1 answer
  • The temperature at noon on Monday
    5·1 answer
  • F(x)=x^2 reflected over x=2
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!