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
kvv77 [185]
3 years ago
6

What is (-3)^-9 times (-3)^5

Mathematics
1 answer:
otez555 [7]3 years ago
8 0

Answer:

1/80 or 0.01234568

Step-by-step explanation:

Exponentiation: (-3) ^ (-9) = -5.08052634253E-5 = -1/

19683

Exponentiation: (-3) ^ 5 = -243

= -1/

19683

* (-243) = -1 · (-243)/

19683 · 1

= 243/

19683

= 1 · 243/

81 · 243

= 1/

81

You might be interested in
The probability that a plane departs on time at a certain airport is .87 The probability that a plane arrives on time given it d
sleet_krkn [62]

Answer:

0.9355

Step-by-step explanation:

What we will use here is conditional probability formula.

let A be the event that the plane departs on time

and B be the event that it arrives on time

P(A) = 0.87

P(B|A) = 0.93

P(B) = ?

P(A n B) = ?

Mathematically;

P(B|A) = P(B nA)/P(A)

0.93 = 0.87/P(A)

P(A) = 0.87/0.93

P(A) = 0.935483870967742

which is 0.9355 to four decimal places

7 0
3 years ago
Pls help I need a good grade <br><br><br> Z/5+3=-35<br><br> Show your work
Molodets [167]
Who is my work I think the answer would be -190

5 0
3 years ago
the numbers 1,2,3,4, and 5 are written on slips of paper, and 2 slips are drawn at random one at a time without replacet. find t
Tresset [83]

Consider such events:

A - slip with number 3 is chosen;

B - the sum of numbers is 4.

You have to count Pr(A|B).

Use formula for conditional probability:

Pr(A|B)=\dfrac{Pr(A\cap B)}{Pr(B)}.

1. The event A\cap B consists in selecting two slips, first is 3 and second should be 1, because the sum is 4. The number of favorable outcomes is exactly 1 and the number of all possible outcomes is 5·4=20 (you have 5 ways to select 1st slip and 4 ways to select 2nd slip). Then the probability of event A\cap B is

Pr(A\cap B)=\dfrac{1}{20}.

2. The event B consists in selecting two slips with the sum 4. The number of favorable outcomes is exactly 2 (1st slip 3 and 2nd slip 1 or 1st slip 1 and 2nd slip 3) and the number of all possible outcomes is 5·4=20 (you have 5 ways to select 1st slip and 4 ways to select 2nd slip). Then the probability of event B is

Pr(B)=\dfrac{2}{20}=\dfrac{1}{10}.

3. Then

Pr(A|B)=\dfrac{\frac{1}{20} }{\frac{1}{10} }=\dfrac{1}{2}.

Answer: \dfrac{1}{2}.

5 0
3 years ago
The idea that two line segments can be added together to find the length of the entire segment is called the ________.
tensa zangetsu [6.8K]

Answer:

Segment addition postulate

Step-by-step explanation:

According to the segment addition postulate, given a line segment defined as AC then a point B is located along AC if and only if the length of the segments  on the line satisfy the relation, AC = AB + BC. Therefore, whereby a line which is defined by two end points, is seen to be the sum of points between the two end points.

4 0
3 years ago
The olympic record for the men's 1500 m athletic race was set by Noah ngeny -kenya (Sydney 2000) at 3:32:07( 3min,32.07s) how ma
vovikov84 [41]

Answer:

6:07 seconds

Step-by-step explanation:

to determine the answer subtract the time of Guerruoj's world record from that of Noah

 3 : 32 : 07

-<u> 3 : 26 : 00</u>

 0 : 06 : 07

8 0
3 years ago
Other questions:
  • 4d2e - d2e find difference
    9·2 answers
  • Eric needs to memorize words on a vocabulary list for French class. He has 24 words to memorize, and he is three-fourths done. H
    5·1 answer
  • A soccer league has 150 players. Of those players 60% are boys. How many boys are in the soccer league?
    11·2 answers
  • Jane left the school and started to bike along the road at a rate of 12 mph. Her friend Sally left the school 10 minutes after J
    8·1 answer
  • Find the midpoint of the line that contains the endpoints (5,2) and (-4,-3)
    8·2 answers
  • Find the mean.<br> Z-score = -1.4<br> Standard Deviation: 7<br> x = 20
    11·1 answer
  • One box of nails weighs 3.4 pounds and another box weighs 5.2 pounds. How much more does the heavier box weigh?
    10·2 answers
  • The sum of a number, n, and 6.05 is 12.4. What is n?
    10·2 answers
  • X² - 4x + 24<br>factor this​
    5·1 answer
  • Which of the following situations can be represented by the expression 3n – 15 ? Select all that apply. ​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!