Evaluate 12x−3y 12x−3y when x=− 1 4 x=−14 and y=3 y=3 .

So with what we know we can set up two equations to  solve for the CDs and the players.

$12(300) = total earnings for cds

= $3600 total cds sold

$35(100) = total earnings for cd players

=$35000

add both of the totals of the CDs and the CD players to get the total earnings

$3600+$3500 = $7100 gained in total from both products sold

Answer:

A linear graph will be plotted to show the relation between ages of Mike and Dan.

Step-by-step explanation:

As the age of Mike increase, the age of Dan will also increase. There is a relation of direct proportionality and a linear graph line will be plotted. When x=3, y=0, therefore the line will be at a distance of 3 x-intercept from origin.

Your answer is A. If we find the slope of the line and draw it out farther, we can see that the points 4,7,10, and 13 would fall on that line.

Answer:

The answer is A. Hope I helped ^-^

Step-by-step explanation:

No I don't believe so, a proportional relation ship would be h= g x 3. So I believe it would be g3=h9 g6=h18 g9=h27. So that when you divide h by 3 it will always equal g. I hope this helped and wasn't too confusing.

The relationship between these 2 g and h is that h=gxg but that is not really constant with it, I hope that helps

[tex](5y^3+2y^2-7y) + (12y^3-4y^2+8)\\\\=5y^3+2y^2-7y+12y^3-4y^2+8\\\\=(5y^3+12y^3)+(2y^2-4y^2)+(-7y)+(8)\\\\=17y^3-2y^2-7y+8[/tex]

Answer: YES

Step-by-step explanation:

Convert liters to gallons. Need to show 2 half gallons ≥ 3 liters

[tex]\frac{3(liters)}{} * \frac{1(gallon)}{3.785(liters)} = 0.7926 gallons[/tex]

[tex]2*\frac{1}{2} gallons = 1 gallon[/tex]

               2 half gallons ≥ 3 liters

              1 gallon ≥ 0.7926 gallons

                          TRUE

Answer:

D. It is $13 less than the gross pay.

Step-by-step explanation:

To find the net pay, you have to look at the table h

We are given that table.

Step 1: Biweekly gross salary is $840 and the number of claimed is 5.

Step 2: Look for claimed number to the corresponding wage $840. It is 13, which is rounded by blue circle in the given table.

Thank you.

Answer:

D. It is $13 less than the gross pay.

Step-by-step explanation:

To find the net pay, you have to look at the table h

We are given that table.

Step 1: Biweekly gross salary is $840 and the number of claimed is 5.

Step 2: Look for claimed number to the corresponding wage $840. It is 13, which is rounded by blue circle in the given table.

Thank you.

i copied the other dued lol

The temperature increase can be represented by the expression 7°F + 7°F, which simplifies to 14°F.

The expression to represent the temperature increase from -7 degrees Fahrenheit at 6:00 am to 7 degrees Fahrenheit at noon is as follows:

Temperature increase = Final temperature - Initial temperature

Substituting the values, we get:

Temperature increase = 7°F - (-7°F)

Simplifying, we have:

Temperature increase = 7°F + 7°F

Temperature increase = 14°F

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Answer:

A and B are not independent events because P(A|B)≠P(A)

is the correct answer.

Step-by-step explanation:

If A and B are independent then we must have

P(AB) = P(A) P(B) and also

P(A/B) = P(A)

We are given that

A and B are two events.

Let P(A)=0.5 , P(B)=0.25 , and P(A and B)=0.15 .

P(A/B) = P(AB)/P(B) = 0.15/0.5 = 0.3

i.e. P(A/B) is not equal P(A)

Similarly P(B/A) = P(AB)/P(A) = 0.15/0.25 = 0.6 not equal to P(B)

Hence A and B are not independent.

Answer:

Step-by-step explanation:

A and B are not independent events because P(A|B)≠P(A)

is the correct answer.

The false statement is B: 'Some irrational numbers are also rational numbers.' This is incorrect because a number cannot be both rational and irrational by definition.

The false statement among the options provided is option B: Some irrational numbers are also rational numbers. This is false because by definition, irrational numbers and rational numbers are distinct sets of numbers with no overlap. A rational number can be written as a ratio of two integers, which means it can be expressed as a fraction. On the other hand, an irrational number cannot be written as a ratio of integers. Thus, a number cannot be both rational and irrational at the same time.

To clarify the other options, option A is true because zero can be represented as the ratio 0/1, making it a rational number. Option C is true because irrational numbers such as π (pi) and √2 (the square root of 2) are indeed part of the set of real numbers. Option D is true because all integers can be expressed as a ratio where the denominator is 1, making every integer a rational number.

Answer:

C) 14 units

Step-by-step explanation:

The equation is in standard form, so the larger denominator is the square of the semi-major axis. That length is √49 = 7, so the major axis length is 2·7 = 14. This length is the length of the string.

up (+)        123             187

down (-)            -154            -175

(123 + 187) - (154 + 175)

=    310        -      329

=                 -19

Answer: 19 feet below ground

We are given

p: 1 is the multiplicative identity

Firstly, we will verify whether it is true

Multiplicative identity:

[tex]A \cdot 1=A[/tex]

Here , 1 is the multiplicative identity

So, 1 is multiplicative identity

so, statement p is true

q: a · 0 = a

we know that whenever we multiply any expression by 0

It will result in 0

so, this statement is false

now, we will verify each options

option-A:

p \/ q

so, we can plug

T \/ F = T

so, this is TRUE

option-B:

p /\ q

so, we can plug

T /\ F = F

so, this is FALSE

option-C:

p --> q

we can plug

T-->F = F

so, this is FALSE

The statements p \/ q (p OR q) is true since the proposition p is true and hence the whole OR operation is true, p /\ q (p AND q) and p --> q (p implies q) are false since the proposition q is false.

The given propositions are "p: 1 is the multiplicative identity" and q: a · 0 = a. Let's analyze each proposed relation among them:

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Answer:

[tex]a_{26}=-20[/tex]

Step-by-step explanation:

The formula of a nth term of an arithmetic sequence:

[tex]a_n=a_1+(n-1)d[/tex]

We have:

[tex]a_1=30,\ d=-2,\ n=26[/tex]

Substitute:

[tex]a_{26}=30+(26-1)(-2)=30+(25)(-2)=30-50=-20[/tex]

Distance traveled by Deon to ride a bicycle trail = 15 mile

Average speed of Deon to ride a bicycle trail = 20 mi/hour

Let 'T' be the time taken to ride the bicycle trail.

We will use distance speed formula to write the equation to find the time 'T' in hours, for the ride.

Distance =[tex]\frac{Speed}{time}[/tex]

[tex]15 = \frac{20}{T}[/tex]

So, [tex]T = \frac{20}{15}[/tex]

This equation will be used to find the time 'T' in hours for the ride.

Answer:

$19.61

Step-by-step explanation:

To find how much Selena spent, multiply the amount by the price per pound. She spent 5.62 (3.49) = $19.61.

[tex]n!=1\cdot2\cdot3\cdot...\cdot n\\\\6!=1\cdot2\cdot3\cdot4\cdot5\cdot6=720\\\\Answer:\ \boxed{D.\ 720}[/tex]

Answer:  D.  

720

Step-by-step explanation:

We know that the value of  n factorial or n! is given by :-

[tex]n!=n\times(n-1)\times(n-2)\times(n-3)\times...........................\times1[/tex]

We are given to find the value of 6! (or 6 factorial )

Using the above formula , the value of 6! is given by :-

[tex]6!=6\times(6-1)\times(6-2)\times(6-3)\times\times(6-4)\times(6-5)\\\\\Rightarrow\ 6!=6\times5\times4\times3\times2\times1\\\\\Rightarrow\ 6!=720[/tex]

Therefore , the value of 6! = 720

A,C,D those were the answers i put and they were correct.

Answer:

A. h(m) = 27 – m3

C. f(a) = a3 – 4a2 + a + 6

D. f(x) = 2x3 – 5x2 – 9

Step-by-step explanation:

did review on edg2020

[tex]f(x)=\dfrac{5x+7}{7x-5},\ g(x)=\dfrac{8x}{7x-5}\\\\(f+g)(x)=f(x)+g(x)=\dfrac{5x+7}{7x-5}+\dfrac{8x}{7x-5}=\dfrac{5x+7+8x}{7x-5}=\dfrac{13x+7}{7x-5}\\\\(f-g)(x)=f(x)-g(x)=\dfrac{5x+7}{7x-5}-\dfrac{8x}{7x-5}=\dfrac{5x+7-8x}{7x-5}=\dfrac{-3x+7}{7x-5}\\\\(f\cdot g)(x)=f(x)\cdot g(x)=\dfrac{5x+7}{7x-5}\cdot\dfrac{8x}{7x-5}=\dfrac{(5x+7)(8x)}{(7x-5)(7x-5)}\\\\=\dfrac{40x^2+56x}{(7x)(7x)+(7x)(-5)+(-5)(7x)+(-5)(-5)}=\dfrac{40x^2+56x}{49x^2-70x+25}[/tex]

speed = 6.4 Km per hour

speed = [tex]\frac{distance}{time}[/tex] = [tex]\frac{38.4}{6}[/tex] = 6.4 Km per hour

Answer:

He sees 16 cats that day

Step-by-step explanation:

If the veterinarian sees 5 dogs a day then he also sees 2 cats.

If he sees 40 dogs a day then,

⇒[tex]\frac{2}{5} *40[/tex]

=[tex]16[/tex] Cats

He sees 16 cats that day.

The correct option is C.

Approximately 29 dogs were seen by the vet in one day.

To solve this problem, we first need to find the fraction of dogs among the total animals seen by the vet.

Given that the ratio of cats to dogs is 2 to 5, the total parts in this ratio is 2 + 5 = 7.

Now, to find the fraction representing dogs, we divide the number of parts representing dogs (5) by the total parts (7). This gives us 5/7.

Next, to find out how many of the 40 animals were dogs, we multiply the total number of animals seen (40) by the fraction representing dogs:

40 animals × (5/7) = (40 × 5) / 7 = 200/7 ≈ 28.57

Since we're looking for an approximation, we round this to the nearest whole number, which is 29.

So, approximately 29 of the animals seen were dogs, which corresponds to option C.

The complete question is here:

The ratio of cats to dogs seen by a vet in a day is about 2 to 5. If a vet saw 40 animals in one day, about how many were dogs?

A. 5

B. 12

C. 29

D. 40

parent graph: f(x) = |x|

shifted 6 units down: f(x) = |x| - 6

then shifted 4 units to the right: f(x) = |x - 4| - 6

then vertically stretched by 2: f(x) = 2|x - 4| - 6

This means the vertex (0, 0) has moved to (4, -6) and the slope is 2

**************************************************************************************

   f(x) = |x|                                      f(x) = 2|x - 4| - 6

   x     y                                         x                              y          new coordinate

   -2    2                               -2 + 4 = 2           2(2) - 6 = -2                   (2, -2)

   -1     1                                -1 + 4  = 3           1(2) - 6 = -4                    (3, -4)

   0     0    vertex                0 + 4  = 4           0(2) - 6 = -6  vertex       (4, -6)

    1     1                                 1 + 4  = 5           1(2) - 6 = -4                    (5, -4)

    2    2                                2 + 4 = 6           2(2) - 6 = -2                   (6, -2)

Plot the NEW COORDINATES for the transformed graph.

Answer:

Perimeter = 2x + 64

Step-by-step explanation:

Perimeter = Sum of the lengths of the borders

From the given figure, we need to find the missing length.

Missing length = 18 - 10 = 8

Another missing length = (x + 14) - (x + 8) = x + 14 - x - 8

= 14 -8

= 6

Now let's add all the sides.

Perimeter = x + 14 + 8 + 6 + 10 + x + 8 + 18

Now add all the x terms and constants

Perimeter = 2x + 64

Answer:

Dilation : The meaning of Dilation is that by taking a fixed center and certain real number we can either enlarge an image or reduce it's size without actually changing it's shape. it totally depends on amount by which we are dilating if it is a real number greater than 1 the size of image increases otherwise shrinks means smaller in size.

The original image is called Pre-image and after dilation that changed image is called image.

So, we can say that Dilation is a function because for each different scale factor or different real number we get different images.

So, Out of all the four options given first looks completely true about Dilation.

i.e   A dilation is a function because every point on the pre-image corresponds to exactly one point on the image.

A dilation is a function because every point on the pre-image corresponds to exactly one point on the image. This is the definition of a function in mathematics. The scale factor and the congruity of the image to the pre-image are irrelevant to the classification of dilation as a function.

The correct statement is:

A dilation is a function because every point on the pre-image corresponds to exactly one point on the image

. In mathematics, dilation is a transformation that changes the size, but not the shape, of a figure. For a dilation to qualify as a function, each point in the pre-image must correspond to exactly one point in the image, without any point in the pre-image being mapped to more than one point in the image. This is the definition of a function: a relation from a set of inputs (the pre-image) to a set of possible outputs (the image) where each input is related to exactly one output. The scale factor and the congruity of the image to the pre-image have no bearing on whether a dilation is a function or not.

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