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2 years ago

Need the answers and dont know it

Mathematics

1 answer:

Leno4ka [110]2 years ago

4 0

Answer:

Hello,

Step-by-step explanation:

The parabole has (1,-4) as vertex and is passing trought (0,-1)

y=k*(x-1)²+4 and -1=k*(-1)²+4 ==> h=-5

y=-5(x-1)²+4=-5(x²-2x+1)+4 = -5x²+10x-1

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According to the graph, which of the following is true? Half of each day is taken up by sleeping and eating. School and homework

aivan3 [116]

Answer:

Half of each day is taken up by sleeping and eating.

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Suppose that each semester at a particular community college Manuel has to pay $1478 in tuition and $121 in fees.

Kamila [148]

Answer:

Step-by-step explanation:

Let x be time, in semesters, remaining before Manuel graduates. We find that Manuel's expenses are:

$1478/semester in tuition, and

$121/semester in fees

1. x semesters remaining: fees

Remaining cost for fees, y, is the product of the fee times the number of semesters, x:

y =($121/semester)*x

y = ($121)*x

2. x semesters remaining: tuition

Remaining cost, y, is the product of the tuition (times the number of semesters, x.

y = ($1478/semester)*x + ($121/semester)*x

y = ($1599)*x

3. x semesters remaining: tuition and fees

Remaining cost, y, is the sum of the products of the tuition (times the number of semesters, and the fees (tix.

y = ($1478/semester)*x + ($121/semester)*x

y = ($1599)*x

5 0

1 year ago

Estimate the answear by rounding each number to its greatest place: 199 x 91

Nataly [62]

I estimated the answer to be 18,000

Without estimation the answer would be 18,109

3 0

3 years ago

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This is used for the next few questions: The rating for the new scary movie has a scale of 0 to 10. The average response was tha

Pie

Answer:

The percentage that of people who gave the movie a rating between 6.8 and 8.8

P(6.8≤X≤8.8) = 83.9≅ 84 percentage

Step-by-step explanation:

Step(i):-

Mean of the Population = 8.3 points

Standard deviation of the Population = 0.5 points

Let 'X' be the random variable in normal distribution

Let X = 6.8

$Z = \frac{x-mean}{S.D} = \frac{6.8-8.3}{0.5} = -3$

Let X = 8.8

$Z = \frac{x-mean}{S.D} = \frac{8.8-8.3}{0.5} = 1$

The probability that of people who gave the movie a rating between 6.8 and 8.8

P(6.8≤X≤8.8) = P(-3≤Z≤1)

= P(Z≤1)- P(Z≤-3)

= 0.5 + A(1) - ( 0.5 -A(-3))

= A(1) + A(3) (∵A(-3)=A(3)

= 0.3413 +0.4986 (∵ From Normal table)

= 0.8399

Conclusion:-

The percentage that of people who gave the movie a rating between 6.8 and 8.8

P(6.8≤X≤8.8) = 83.9≅ 84 percentage

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3 years ago

Write an equation of the line that passes through the given point and is perpendicular to the given line

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fAnswer:

Step-by-step explanation:

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3 years ago