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
xz_007 [3.2K]
3 years ago
7

What is the value of 2-2x-3y5 for x = 2 and y = -4?

Mathematics
1 answer:
a_sh-v [17]3 years ago
6 0
2 - 2(2) - 3(-4)5
2 - 4 + 60 = 58
The answer is 58
You might be interested in
The game of American roulette involves spinning a wheel with 38 slots: 18 red, 18 black, and 2 green. A ball is spun onto the wh
solong [7]

Answer:

a)- \frac{1}{19}

b) SD(x) =  0.9986

Step-by-step explanation:

Given data:

Number of slots 38

slots for red ball 18

slots for black = 18

slots for green 2

outcomes       Red      Black or Green

Profit                  1                 -1

P(X)                   18/38       20/38

Expected value of wining,  

E(x) = 1. \frac{18}{38} + (-1) \frac{20}{38} = - \frac{2}{38} = - \frac{1}{19}

B) Standard deviation of winning SD(x)

SD(x) = \sqrt{(1- (-\frac{1}{19})^2 .\frac{18}{38} + (1- (-\frac{1}{19})^2 .\frac{20}{38}}

SD(x) = \sqrt{\frac{360}{361}

SD(x) =  0.9986

3 0
3 years ago
I WILL GIVE BRAINLIEST IF YOU HELP THIS IS REALLY HARD FOR ME I HAVE THE FIRST TWO JUST THE LAST ONE PLEASE ALSO EXPLAIN HOW YOU
asambeis [7]

Answer:

n ≥ -1 or n ≤ 3

Combined:

-1 ≤ n ≤ 3

Since the inequalities are ≤, it'll be a closed circle

The closed circle will start AT -1 and another closed circle will end at 3

5 0
3 years ago
Two trains leave towns 664 miles apart at the same time and travel toward each other. One train travels 16 mih faster than the o
Hatshy [7]

Answer:

I think that I am right.  One train is traveling at 75 mph and the other train is traveling at 91 mph

Step-by-step explanation:

5 0
11 months ago
chris runs 2.3 miles every day of the week, except sunday. on sunday he only runs 2 miles. how many miles will he run in 2 weeks
Ludmilka [50]

Answer:

He will run 31.6 miles in two weeks.

Step-by-step explanation:

6 days a week = 2.3 miles

6 days · 2 weeks = 12 days total running 2.3 miles

1 day a week = 2 miles

1 day · 2 weeks = 2 days total running 2 miles

(12 · 2.3) + (2 · 2)

27.6 + 4

31.6 miles

7 0
3 years ago
PLSS HELP What is the value of y
Anton [14]
Y= 18 because vertical angles are congruent.
7 0
3 years ago
Read 2 more answers
Other questions:
  • A person travels 8 miles down a stream. In the same time they can travel 6 miles upstream. If the current of the river is 2 mph
    6·1 answer
  • 5.62 × 0.7 = 2.68 × 1.35<br> True or false?
    11·2 answers
  • 6' radius circle how many sq feet?
    12·1 answer
  • Which Image shows the opposite of the opposite of 2/3 on a vertical number line
    6·2 answers
  • Find the perimeter.
    8·1 answer
  • PLEASE HELP! THIS IS DUE RN AND I CAN'T FIGURE IT OUT! I WILL AWARD BRAINLIEST TO THE CORRECT ANSWER!!
    12·2 answers
  • At the craft store, Martina bought a bag of yellow and orange marbles. She received 15 marbles in all. 6 of the marbles were yel
    12·1 answer
  • Please help!!
    15·1 answer
  • Divide<br> .4 divided by 28.08
    11·2 answers
  • An observer (O) spots a bird flying at a 35° angle from a line drawn horizontal to its nest. If the distance from the observer (
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!