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
Nataly_w [17]
2 years ago
13

18 - (-f) = 91 (With work please)

Mathematics
2 answers:
borishaifa [10]2 years ago
6 0

18 - (-f) = 91

Subtracting a negative value changes to addition:

18 + f = 91

Subtract 18 from both sides:

F = 73

FinnZ [79.3K]2 years ago
4 0

Answer:

f = 73

Step-by-step explanation:

Solve for f

18 - ( - f ) = 91

  • Remove the parantheses and change their sign.

18 + f = 91

  • subtract each side by 18

18 - 18 + f = 91 - 18

  • calculate

f = 73

You might be interested in
An object is dropped off a building that is 144 feet tall. After how many seconds does the object hit the ground? (d=16t^2)
andrew-mc [135]

Answer:

after 3 seconds, the object hits the ground.

Hope this helps :)

7 0
3 years ago
What kind of salad do snowmen eat? Punchline 73 answer key
motikmotik

Answer:

Coldslaw

Step-by-step explanation:

6 0
3 years ago
Please answer asap! *picture attached*
Nastasia [14]

f(x)= x+2

g(x)= x-4

(fg)(x) = (x+2)( x-4)

= x^2 - 4x +2x -8

= x^2 -2x -8

4 0
3 years ago
Read 2 more answers
Evaluate 3{5 + 3[10 + 4 · 8]}
VMariaS [17]
393 is the answer to the question


8 0
3 years ago
At a peace summit, seven Hatfield and nine McCoy family
katrin2010 [14]

Answer:

0.525 = 52.5% probability that the two are from different families.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this problem, the order in which the two participants are selected is not important, so we use the combinations formula to solve this question.

Combinations formula:

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)!}

Desired outcomes:

1 from the Harfield family(from a set of 7).

1 from the McCoy family(from a set of 9). So

D = C_{7,1}*C_{9,1} = \frac{7!}{1!6!}*\frac{9!}{1!8!} = 7*9 = 63

Total outcomes:

2 from a set of 16. So

T = C_{16,2} = \frac{16!}{2!14!} = 120

Probability:

p = \frac{D}{T} = \frac{63}{120} = 0.525

0.525 = 52.5% probability that the two are from different families.

3 0
2 years ago
Other questions:
  • Find the scale factor of the line segment dilation.
    11·2 answers
  • 2 Points
    8·1 answer
  • Equivalent fractions of 7/8
    8·1 answer
  • -2•f(-6) - 7•g(-7)<br> Can someone please help me
    10·1 answer
  • What is the distance between the point (−10, −2) and the point (−4, −2)?
    12·2 answers
  • Please somebody help me with this math problem. I am terrible at math!
    15·2 answers
  • Equivalent fractions for 4 1/3-2 3/5 with common denominators
    6·1 answer
  • Finding dilations geometry​
    13·1 answer
  • If a library has 3,000 nonfiction books how many books does it have in all?
    10·2 answers
  • Fill in the blank with a constant, so that the resulting quadratic expression is the square of a binomial.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!