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ryzh [129]
3 years ago
6

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Mathematics
2 answers:
svp [43]3 years ago
8 0

Points are

  • (-4,-1)
  • (-2,1)
  • (1,-2)
  • (4,-4)
  • (2,4)

All x values has a unique image in y so it's a function

\\ \sf\longmapsto D_f=\{-4,-2,1,4,2\}

\\ \sf\longmapsto R_f=\{-1,1,-2,-4,4\}

quester [9]3 years ago
3 0

Answer:

<u>The domain is the set of x-values:</u>

  • {-4, -2, 1, 2, 4}

<u>The range is the set of y-values:</u>

  • {-4, -2, -1, 1, 4}

This can be a function as each x- value has exactly one corresponding y- value.

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Marion read 616 pages in 14 days. If she read the same number of pages each day, how many pages did she read each day?
Kaylis [27]

Answer:

616/14=44 pages

Step-by-step explanation:

7 0
3 years ago
This data set gives the scores of 41 students on a biology exam: {66, 67, 67, 68, 80, 81, 81, 82, 22, 65, 66, 68, 69, 70, 71, 71
Naddika [18.5K]
I think the answer is 74.
3 0
4 years ago
Fill in the blank to make the statement true (-2+6)+__=-2+[6+(-8)​
bixtya [17]

Answer:

-8

Step-by-step explanation:

you have to make them equivalent so and the one thing missing from the other side of the equation

4 0
3 years ago
Twelve percent of the population is left handed. Approximate the probability that there are at least 20 left-handers in a school
DochEvi [55]

Answer:

Step-by-step explanation:

We would assume a binomial distribution for the handedness of the population. Let x be a random variable representing the type of handedness in the population. The probability of success, p is that a randomly chosen person is left handed only. Then probability of failure is that a chosen person is not left handed only(right handed only or both).

p = 12/100 = 0.12

number of success, x = 20

n = 200

the probability that there are at least 20 left-handers is expressed as P(x ≥ 20)

From the binomial probability calculator,

P(x ≥ 20) = 0.84

8 0
4 years ago
Given that B is the midpoint of segment AC, find the unknown values.
shusha [124]
Hi! for x, you need to do 2x-8 = x+17 and solve, because since b is the midpoint, ab and bc would be congruent.

2x-8 = x+17
1x-8 = 17
1x = 25
x = 25

in order to find ab, you plug in the x into the expression.

ab = 2x-8
ab = 2(25)-8
ab = 42

do the same for bc:

bc = x + 17
bc = 25 + 17
bc = 42

and for ac, combine the two expressions and plug in the value for x.

ac = ab + bc
ac = 2x-8 + x+17
ac = 2(25)-8 + 25+17
ac = 84

i hope this helped! have a good day/night :)

5 0
3 years ago
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