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SVEN [57.7K]
3 years ago
14

Which of the following is a statistical question?

Mathematics
1 answer:
Luda [366]3 years ago
6 0

Answer:

A. what is the height of boys studying in 6th grade

Step-by-step explanation:

you can put this on a graph and thats what a statistical question is

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Express each cubic function below in terms of linear factors.a)f(x)=x³-6x²-27xb)f(x)=x³-16x²c)f(x)=x³+16x²
nirvana33 [79]

Answer:

a) x (x-9) (x+3)

b) x (x+4)(x-4)

c) (x)(x)(x + 16)

Step-by-step explanation:

We're going to equal the functions to zero and find their roots by factorizing:

a) f(x)=x³-6x²-27x

x³-6x²-27x = 0

x(x²-6x-27) = 0

⇒x (x-9) (x+3)

b) f(x)=x³-16x

x³-16x = 0

x (x²-16) =0

⇒x (x+4)(x-4)

c) f(x)=x³+16x²

x³ + 16x² = 0

x² ( x +16)

⇒(x)(x)(x + 16)

3 0
4 years ago
A line y=mx+b is translated using the vector . Write the equation of the translated line. What is the value of the y -intercept?
schepotkina [342]

The found value are-

  • Equation of the translated line: y = mx − am + 2b.
  • The value of the y -intercept: 2b − am.
<h3>What is general form of straight line?</h3>

A straight line's general equation is y = mx + c, in which m is the gradient and y = c is the value at which the line intersects the y-axis. This number c is known as the y-axis intercept.

Now, as per the given question;

The general equation of the line is given as;

y = mx + b

Each point (x,y) of the line is moved to the point (x+a, y+b) by the translation:

(x,y) ---> (x+a, y+b)

We find the original line's x and y intercepts:

Put y=0 in general equation of the line

⇒mx+b = 0

⇒x = −b/m

When, x=0

⇒y = m⋅0 + b

⇒ y = b

A, (0,b) and B( -b/m, 0)

We find the translational coordinates of the points A,B:

A(0,b) ---> A′ (0+a,b+b)

A(0,b) ---> A′ (a,2b)

And,

B( -b/m, 0) ----> B'( -b/m + a, 0 + b)

B( -b/m, 0) ----> B'( -b/m + a, b)

To find the equation of the line's translation, we use the points A and B ′:

m' = (2b - b)/[a  - (-b/m +a)]

m' = b/(b/m)

m'  =m

And,

y−yA' = m' (x−xA')

y−2b=m(x−a)

y=mx−am+2b

The translation of the line's x and y intercepts are:

Put x=0

⇒y = m⋅0−am+2b

⇒y = 2b−am

And, put y=0

⇒0 = mx−am+2b

⇒x = a - (2b/m)

Therefore, the equation of the translate line is found to be  y = mx − am + 2b.

And, the value of the y-intercept is found to be 2b−am.

To know more about the general form of straight line, here

brainly.com/question/4227212

#SPJ4

3 0
1 year ago
Twelve blocks are prepared, so 4 are red , 4 are white, and 4 are blue. What is the probability of picking a green block. What i
Alex787 [66]
There are no green blocks to the probability of picking a green block would be 0. The probability of not picking a red block would be 8/12 = 2/3
5 0
3 years ago
Read 2 more answers
The side lengths of a triangle are given by the expressions 5x + 3, 5x – 5, and 3x – 2. Write and simplify a linear
rewona [7]

Answer:

The perimeter is P=13x-4

Step-by-step explanation:

The perimeter of a triangle is the distance around its edges.

The given triangle has side lengths 5x + 3, 5x – 5, and 3x – 2.

The perimeter is : P=(5x+3)+(5x-5)+(3x-2)

Group similar terms to get:

P=5x+5x+3x+3-5-2

Combine the similar terms to get: P=13x-4

Hence the perimeter in terms of x is P=13x-4

5 0
4 years ago
* ANSWER ASAP PLS (: * If a town has a density of 8 houses per block and there are 65 blocks in the town, how many houses are in
Maru [420]

Answer:

B. 520 Houses

Step-by-step explanation:

You are multiplying 8 houses per block times 65 blocks. 8*65 = 520 Houses.

8 0
4 years ago
Read 2 more answers
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