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Yanka [14]
3 years ago
15

Helppppppppppppppppppppppppppppp

Mathematics
2 answers:
Sidana [21]3 years ago
7 0
Answer:
Second choice is the correct one

Explanation:
Let's check the choices:
Choice 1:
-2^-3 = -1/(2)^3 = -1/8 ........> wrong choice
Choice 2:
(-1/2)^-3 = (-2)^3 = -8 ......> correct choice
Choice 3:
(1/2)^-3 = (2)^3 = 8 ........> wrong choice
Choice 4:
2^-3 = (1/2)^3 = 1/8 ..........> wrong choice

Hope this helps :)
ivann1987 [24]3 years ago
6 0
A number raised<span> to a </span>negative power<span> is equal to 1 divided by the </span>number raised<span> to the same </span>power<span> but positive
</span>therefore
[-1/2]^-3-----------> [-2]^3 =-8

the answer is [-1/2]<span>^-3
</span>
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Solve for x: 2|2x − 2| + 4 = 20.
barxatty [35]
<span><span>Subtract 4 from both sides of the equation.
<span>2<span>|2x−2|</span>=16</span></span><span>Divide both sides of the equation by 2.
<span><span>|2x−2|</span>=8</span></span><span>Set 2x-2 equal to positive and negative 8.
<span>2x−2=8,2x−2=−8</span></span><span>Solve both equations for x.
<span>x=5,−<span>3</span></span></span></span>
8 0
3 years ago
Read 2 more answers
an experiment consists of flipping a fair coin and rolling a fair die. How many possible outcomes have a head and an even number
Nataliya [291]
-- The probability of HEADS on a fair coin is  1/2 .

-- The probability of an even number (2, 4, or 6) on a die is  3/6 = also 1/2 .

-- The probability of both outcomes in the same toss is

                                   (1/2 x 1/2) = 1/4  =  25% .

-- There are 3 possible successful outcomes.
They are:

H - 2
H - 4
H - 6

-- There are 9 other outcomes that are not successful:

H - 1
H - 3
H - 5

T - 1
T - 2
T - 3
T - 4
T - 5
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7 0
3 years ago
HEY I RLLLLLLY NEED HELP! 50 POINTS AND BRAINLIEST IS YOU'RE RIGHT!!!!
BlackZzzverrR [31]

Answer:

  • g(f(x)) = 2x - 2

Step-by-step explanation:

<u>Given:</u>

  • f(x) = 2x + 1

and

  • g(x) = x - 3

<u>Find g(f(x)), substitute the value of f(x) into equation:</u>

  • g(f(x)) = g(2x + 1) = (2x + 1) - 3 = 2x - 2
7 0
2 years ago
Divide $28 in the ratio 5:2:7.
Nina [5.8K]

Answer:

<h3>10:4:14</h3>

Step-by-step explanation:

5+2+7=14

28/14=2

2*5=10

2*2=4

2*7=14

10:4:14

8 0
3 years ago
hilton university drama club sold 311 tickets for a play. student tickets cost 50 cents each,nonstudent tickets cost $1.50. if t
tamaranim1 [39]

X= number of student tickets

Y= number of on student tickets

x+y=311

0.50x + 1.50y = 385.50


Solve x in 1st equation


X+y=311


X= -y + 311


Now substitute x into second equation to solve for y


0.50(-y+311)+ 1.50y = 385.50


-0.50y+311.50+1.50y=385.50

Y+311.50=385.50


Y= 385.50-311.50


Y= 74


Now substitute y answer to first equation to find x


X+y=311


X+ 74=311


X= 311-74


X= 237


So 237 students tickets and 74 non students tickets



4 0
3 years ago
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