help me with this precal

The probability that a can will take more than 29 minutes is approximately 0.66807

The mean time taken by the soda to move through the assembly line = 26 minutes

The standard deviation of the time it takes = 2 minutes

Required: The probability that the can takes more than 29 minutes

Solution: The Z-Score formula is presented as follows;

[tex]Z = \frac{x - \mu}{ \sigma} [/tex]

The Z-Score of a can that takes 29 minutes is given as follows;

[tex]Z = \frac{29 - 6}{ 2} = 1.5[/tex]

Which gives;

Z = 1.5

The probability P(x < Z) obtained online or from the Z-Score table gives;

Which gives;

The probability that the can will take more than 29 minutes P(x > Z) ≈ 1 - 0.93319 = 0.66807

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Answer:

see explanation

Step-by-step explanation:

the relationship between angles a and b

they are alternate interior angles

these angle pairs are on opposite ( alternate) sides of the transversal and are in between ( in the interior of )the parallel lines.

Answer:

the answer is 13,221 ...........

Answer:

13221...........

Step-by-step explanation:

9888-1111=8777

8777+4444=13221

Answer:

a = 2

b = 3

c= 8

Step-by-step explanation:

a) 4 = [tex]2^{2}[/tex]  We want to have all of the bases the same in the powers, so we will convert 4 to a base of 2.

b) When we divide with powers with the same baes, we subtract the exponents.  (5-2 =3)

c) [tex]2^{3}[/tex] means 2x2x2 or 8

The volume of the two cylinders is 2424. The area of the cross-section will be equal if another cross-section is obtained at a different height.

The density of a cylinder is determined by its volume, which represents how much material may be immersed in it or carried inside of it.

The formula for the volume of a cylinder is given as:

V=π r² h

Now from the figure,

We have, for the first cylinder the height is 16 units and the radius is 7 units.

Hence,

V = 22/7 × 7² × 16

V = 22/7 × 7 × 7 × 16

V = 2424

Therefore the volume of the two cylinders is 2424. The area of the cross-section will be equal if another cross-section is obtained at a different height.

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Answer:

Step-by-step explanation:

It should be noted that the wind speed is 70km per hour and the plane speed is 490km per hour.

Based on the information given, the following an be illustrated.

Let P = speed of plane

Let w = speed of wind

The appropriate equation will be:

(P + W) (3/2) = 840 ....... i

(P - W) × 2 = (840 / 2) ...... ii

P + W = 560 .....i

P - W = 420 ......ii

Subtract the equations

2P = 980

P = 980 / 2 = 490

P + W = 560

490 + W = 560

W = 560 - 490

W = 70

Therefore, the wind speed is 70km per hour and the plane speed is 490km per hour.

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Answer:

  x2 = 7/6

Step-by-step explanation:

You want the second approximation using Newton's method, given that the first approximation is x1=1 and the function tangent at x=1 is y=7-6x.

Newton's method approximates the function by its tangent line at the point (x, f(x)). That is, the second approximation is the x-intercept of the tangent line y = 7 -6x. That value of x is ...

  0 = 7 -6x

  6x = 7 . . . . . add 6x

  x = 7/6 . . . . divide by 6

The second approximation is x2 = 7/6.

The absolute change in the town's population from 2008 to 2010 is 1,050 and the percentage change is 32.3%.

Here, we are given that the population of a town increased from 3,250 in 2008 to 4,300 in 2010.

The absolute change can be calculate as-

Final population count - initial population count

= 4,300 - 3,250

= 1,050

Thus, absolute increase = 1,050

Now, the percentage increase can be calculated as follows-

percentage change = absolute change in population/ initial population count × 100

= 1,050/ 3,250 × 100

= 10500/ 325

= 32.3%

Thus, the absolute change in the town's population from 2008 to 2010 is 1,050 and the percentage change is 32.3%.

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The interpretation of the y-intercept of the model is (d) when the attendance is 0, the number of wins is 15.2

The equation of the linear regression model is given as

y = 4.9x + 15.2

The y-intercept of the model implies that

x = 0

Substitute x = 0 in the equation of the linear regression model given as

y = 4.9x + 15.2

So, we have

y = 4.9 x 0 + 15.2

Evaluate the product

So, we have

y = 0 + 15.2

Evaluate the sum

So, we have

y = 15.2

Hence, the interpretation of the y-intercept of the model is (d) when the attendance is 0, the number of wins is 15.2

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Step-by-step explanation:

this is similar to the complete approach to find the midpoint. just instead of 1/2 we are looking for 3/10 of the distance.

the general approach is

A + (B - A)×factor

factor can be 1/2 or 3/10 or 7/10 or 24/29 or ...

so, we have

(-3, -6) + ((9 - -3)×3/10, (5 - -6)×3/10) =

= (-3, -6) + (12×3/10, 11×3/10) =

= (-3, -6) + (3.6, 3.3) = (0.6, -2.7)

the point 3/10 of the way from A to B is

(0.6, -2.7)

Answer:

$95.88

Step-by-step explanation:

multiply 6 by 17 and get 102

multiply 102 by 0.94 and get 95.88

The domain of the relation is x = {5, 2, 0, 2, 5} and the range is y = {-3, 2, -3, 1, 3}

The domain of a function is the set of inputs that are accepted by the function. The range, also known as the codomain, is the set of all the output values of the function.

Here, we are given a relation with the following set of solutions-  

{(5,-3), (2,2), (0, -3), (2,1) (5,3)}

We know that all x values will form the domain and all the y values will make up the range.

Here the x values are: 5, 2, 0, 2, 5

and the y values are: -3, 2, -3, 1, 3

Thus, the domain of the relation is x = {5, 2, 0, 2, 5} and the range is y = {-3, 2, -3, 1, 3}

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Answer:

[tex](x + 4)^{2}[/tex] = 36

Step-by-step explanation:

So the "sum of a number and 4" is what gets squared and that together is equal to 36.

The value of -5*g(4)-1 is 9.

It is a question of functions.

Here, g is a function of x.

Function

A function is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output.

Let X and Y be any two non-empty sets; mapping from X to Y will be a function only when every element in set X has one end, only one image in set Y.

Given that:-

g(x) = 1 - (3/4)x

We have to find the value of  -5*g(4)-1

First we will find g(4),

g(4) = 1 - (3/4)*(4) = 1 - 3 = -2

-5*g(4) - 1 = -5*(-2) - 1 = 10 - 1 = 9

Hence, the value of -5*g(4) - 1  is 9.

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Answer: D.

hope this helps

The dimensions of the rectangle are 43inches and 20inches if the perimeter of the rectangle is 126 inches.

Leth the width of the revtangle be x.

According to the given question.

The perimeter of the rectangle is 126 inches.

The length of the rectangle is three more than double the width.

⇒ Length of the rectangle  = 3 + 2x

Now, according to the given conditions we can say that

Perimeter of the rectangle = 2( length + width)

⇒ 126 = 2(3 + 2x + x)

⇒ 126  = 2(3 + 3x)

⇒ 63  = 3 + 3x

⇒ 63 - 3 = 3x

⇒ 60 = 3x

⇒ x = 20 inches

Therefore, the length of the rectangle = 3 + 2(20) = 3 + 40 = 43

Hence, the dimensions of the rectangle are 43inches and 20inches if the perimeter of the rectangle is 126 inches.

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The statement that is true is: A. segment XZ is perpendicular to segment WY.

When two lines intersect at a point to form right angles (90 degrees), both lines are said to be perpendicular to each other.

We are told that angle YXZ is equal to 90 degrees. This is the angle formed at the point where segment XZ intersects segment WY at point X.

This means that both lines are perpendicular to each other.

Therefore, the statement that is true is: A. segment XZ is perpendicular to segment WY.

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Step-by-step explanation:

[tex] \frac{1}{ {x}^{ \frac{ - 1}{3} } } \times \frac{1}{3x} \\ \frac{1}{ {3x}^{ \frac{2}{3} } } \\ \frac{1}{ 3\sqrt[3]{x {}^{2} } } [/tex]

Answer:

This relation is not a function.

Step-by-step explanation:

Function

A relation is a function when each input (x-value) has a single output (y-value).

A function is one-to-one if each output (y-values) corresponds to exactly one input (x-values).

A function is many-to-one if some outputs (y-values) correspond to more than one (many) inputs (x-values).

In the given relation, one input value (x = 4) corresponds to two output values.  Therefore, this relation is not a function.

(See attached Relation Arrow Diagram).

Answer:

Length = 60 inches

Width = 17 inches

Step-by-step explanation:

Let width = w

Length = 3w + 9

Perimeter = 154

Perimeter = 2(length + width)

2(3w + 9 + w) = 154

8w + 18 = 154

8w = 154 - 18

8w = 136

w = 136/8

w = 17 inches

Length = 3w + 9 = 3(17) + 9 = 60 inches

The length of both UV and ST is [tex]3\sqrt{2}[/tex] and hence they both are congruent.

Here, we are given two lines- UV and ST.

We can find the length of the lines using distance formula. According to distance formula, distance between two points- (x1, y1) and (x2, y2) is given as-

[tex]\sqrt{(x2-x1)^{2} + (y2 - y1)^{2} }[/tex]

Here, for UV,

the two endpoints are- (1,0) and (4,3)

thus, the length of UV will be-

[tex]\sqrt{(4-1)^{2} + (3 - 0)^{2} }[/tex]

= [tex]\sqrt{(3)^{2} + (3 )^{2} }[/tex]

= [tex]\sqrt{9 + 9 }[/tex]

= [tex]\sqrt{18}[/tex]

= [tex]3\sqrt{2}[/tex]

Similarly, the two endpoints of ST are- (-2,-1) and (1,-4)

thus, the length of UV will be-

[tex]\sqrt{(1+2)^{2} + (-4 +1)^{2} }[/tex]

= [tex]\sqrt{(3)^{2} + (-3)^{2} }[/tex]

= [tex]\sqrt{9 + 9 }[/tex]

= [tex]\sqrt{18}[/tex]

= [tex]3\sqrt{2}[/tex]

So we can see that UV = ST = [tex]3\sqrt{2}[/tex], which means that both of them are congruent. Hence, option 1 is the correct answer.

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Your question was incomplete. Check for the missing figure below.

b+3=12

because a+5=b+3 and a+5=12 which means b+3 must be 12 as well

Answer:The LCM of 15 and 20 is 60.

Step-by-step explanation: I used the internet/gggle

The limit dimensions of the part are 3.135 inches and 3.155 inches

The given parameters are

Thickness = 3.145 inches

Tolerance = 0.010 inches

The limit dimensions of the part are calculated as

Limit = Thickness +/- Tolerance

So, we have

Limit = 3.145 inches +/- 0.010 inches

Expand the above expression

So, we have

Limit = (3.145 inches - 0.010 inches, 3.145 inches + 0.010 inches)

Evaluate the sum

Limit = (3.135 inches, 3.155 inches)

Hence, the limit dimensions of the part are 3.135 inches and 3.155 inches

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Answer:

v = 4.4

Step-by-step explanation:

Let's solve your equation step-by-step.

8/11 = v/6

Step 1: Cross-multiply.

8/11 = v/6

(8)*(6)=v*(11)

48=11v

Step 2: Flip the equation.

11v=48

Step 3: Divide both sides by 11.

11v/11 = 48/11

v= 48/11

v = 4.4

The triangles ΔRST and ΔXYZ are congruent, then all the same construction make triangles congruent. All the options are correct.

A triangle is a three-sided polygon with three angles. The angles of the triangle add up to 180 degrees.

If two triangles are congruent, then the ratio of the corresponding sides will be one.

The triangles ΔRST ≅ ΔXYZ. Points P and W lie on ST and YZ, respectively.

The diagram is given below.

A) If P is the midpoint of ST and W is the midpoint of YZ then ΔRSP ≅ ΔXYW is true.

B) If RP bisects ∠SRT and XW bisects ∠YXZ, then ΔRSP ≅ ΔXYW is true.

C) If RP = XW, then ΔRSP ≅ ΔXYW is true.

D) If RP ⊥ ST and XW ⊥ YZ, then ΔRSP ≅ ΔXYW is true.

All the options are correct.

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Answer:

1

Step-by-step explanation:

let the number be n

3n + 9 = 12

3n = 12 - 9 = 3

n= 3/3

n= 1

The value of f(5) is 4375.

An expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

Given:

f(1)= 7,

f(n) = 5f(n-1)

f(2) = 5f(1)

     =5*7

f(2)= 35

f(3) =  5f(3-1)

f(3) =  5f(2)

f(3) =  5*35

f(3) = 175

f(4) =  5f(4-1)

f(4) =  5f(3)

f(4) =  5*175

f(4) = 875

f(5) =  5f(5-1)

f(5) =  5f(4)

f(5) =  5*875

f(5) = 4375

Hence, the value of f(5) is 4375.

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The expression that shows another way to write -2/5 divided by 3/2 will be -2/5 ÷ 3/2.

It should be noted that an expression simply shows the relationship between the variables.

Therefore, the expression that shows another way to write -2/5 divided by 3/2 will be:

= -2/5 ÷ 3/2

= -2/5 × 2/3

= -4/15.

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