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3 years ago

If f(x) = x2, which equation represents function g?

Mathematics

2 answers:

Dmitrij [34]3 years ago

5 0

Answer: B. G(x)=3f(x)

Step-by-step explanation: hope this helped :)

Elanso [62]3 years ago

4 0

Answer:

Step-by-step explanation:

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The heights of 10 year old children has a normal probability distribution with mean of 54.6 inches and standard deviation of 5.7

Fofino [41]

Answer:

a) 0.69

The probability that a randomly selected 10-year old child will be more than 51.75 inches tall

P(X>51.75 ) = 0.6915

Step-by-step explanation:

Step(i):-

Given mean of the Population = 54.6 inches

Given standard deviation of the Population = 5.7 inches

Let 'X' be the random variable of normal distribution

Let 'X' = 51.75 inches

$Z = \frac{x-mean}{S.D} = \frac{51.75-54.6}{5.7} = -0.5$

Step(ii):-

The probability that a randomly selected 10-year old child will be more than 51.75 inches tall

P(X>51.75 ) = P(Z>-0.5)

= 1 - P( Z < -0.5)

= 1 - (0.5 - A(-0.5))

= 1 -0.5 + A(-0.5)

= 0.5 + A(0.5) (∵A(-0.5)= A(0.5)

= 0.5 +0.1915

= 0.6915

Conclusion:-

The probability that a randomly selected 10-year old child will be more than 51.75 inches tall

P(X>51.75 ) = 0.6915

5 0

3 years ago

with one litre of paint you can paint an area of 8m².how much paint will you need for a wall mural that is 10m wide and 3m high?

Sveta_85 [38]

Answer: 3.75 liters

Step-by-step explanation:

1 liter = 8m^2

area of the wall = l x b (wide x high)

= 10 x 3

= 30m^2

so, quantity of paint needed = 30/8 = 3.75 liters

Hope it helped u,

pls mark as the brainliest -Ayaan707-

^_^

6 0

3 years ago

A group of 2n people, consisting of n men and n women, are to be independently distributed among m rooms. Each woman chooses roo

vfiekz [6]

Step-by-step explanation:

Assume that

$X_i = \left \{ {{1, If , Ith, room, has,exactly, 1,man, and , 1,woman } \atop {0, othewise} \right.$

hence,

$x = x_1 + x_2+....+x_m$

now,

$E(x) = E(x_1+x_2+---+x_m)\\\\E(x)=E(x_1)+E(x_2)+---+E(x_m)$

attached below is the complete solution

7 0

3 years ago

Sam has 6 boxes of pencils. Each pack has x pencils in it. After Julie gives Sam 4 more pencils, he has a total of 40 pencils.

Natalka [10]

Answer:

6x + 4 = 40

Step-by-step explanation:

6 boxes

x = number of pencils per box

therefore Sam had 6x and received 4 more

4 0

3 years ago

Read 2 more answers

A plumbing company charges an initial fee of $50, plus an additional $26 per hour of service. A second company charges an initia

torisob [31]

The answer is C. You pay $128 in the third hour for both. Hope this helped

3 0

2 years ago