Can anyone help in number 12 pls… I don’t have to draw anything just have to write down the equation of a and b

Can Anyone Help In Number 12 Pls I Dont Have To Draw Anything Just Have To Write Down The Equation Of

Answers

Answer 1

Answer:

y=3x-2

Step-by-step explanation:


Related Questions

A ticket to an all day concert is priced at $115, plus an additional 9% sales tax.

Which of the following statements correctly describes how to find the total cost of the ticket?

Answers

The total cost of the ticket is 125.35 dollars.

How to find the total cost?

A ticket to an all day concert is priced at $115, plus an additional 9% sales tax.

The statements that describes how to find the total cost of the ticket can be represented as follows:

sale tax = 9% of 115

sale tax = 9  / 100 × 115

sale tax = 1035 / 100

sale tax = 10.35 dollars

Therefore,

total cost = 10.35 + 115

total cost = 125.35 dollars

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How many pounds in 73.5 kg?

Answers

There are 2.20462 pounds in one kilogram.

Therefore, to convert 73.5 kilograms to pounds, you would multiply 73.5 by 2.20462.

The calculation is as follows:

73.5 kg * 2.20462 pounds/kg = 162.04101 pounds

So, there are approximately 162.04101 pounds in 73.5 kilograms.

By the definition conversion of units means the conversion between different units and the measurements of the same quantity done by either the process of multiplication or division.

In maths, conversion is referred as the process of changing the value of one form to another for example inches to millimeters, or liters to gallons.

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what is the value of 130 kph in mph

Answers

To convert kilometers per hour (kph) to miles per hour (mph), we use the following formula: mph = kph x 0.621371. This is because there are 0.621371 miles in a kilometer.

To calculate the value of 130 kph in mph, we can simply plug the value into the formula: mph = 130 x 0.621371 = 80.78 mph. Therefore, the value of 130 kph in mph is 80.78 mph. To further understand how this conversion works, we can break down the calculation into its basic components. First, we divide 130 by 1. That gives us 130. Then, we multiply 130 by 0.621371, which gives us the result of 80.78. Therefore, the value of 130 kph in mph is 80.78 mph. The above formula and calculation can be used to convert any value from kph to mph. All we need to do is plug the kph value into the formula and we will get the equivalent mph value. It is important to note that the conversion from kph to mph is not exact, as there are slight variations in the exact value of a kilometer. However, this formula provides a good approximation and is accurate enough for most purposes.

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What calculator is used for pre-calculus?

Answers

A scientific calculator is typically used for pre-calculus.

This type of calculator is designed to handle more advanced mathematical functions, such as trigonometry, logarithms, and exponents, which are commonly used in pre-calculus.

It is important to have a scientific calculator for pre-calculus because it allows you to easily solve more complex equations and perform calculations quickly and accurately.

Additionally, many scientific calculators have graphing capabilities, which can be useful for visualizing equations and understanding how they behave. Overall, a scientific calculator is an essential tool for pre-calculus and can help you succeed in the course.

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The circumference of a circle is 260.62 feet. What is the radius of the circle? Use 3.14 for π.

Answers

Given:-[tex] \rm{Circumference \: of \: a \: circle = \bold{260.62}}[/tex]

[tex] \: [/tex]

[tex] \rm{ {π ( pi ) = \bold{3.14}}}[/tex]

[tex] \: [/tex]

To find:-[tex] \rm{radius= ?}[/tex]

[tex] \: [/tex]

By using formula:-[tex] \boxed{ \rm{Circumference \: of \: circle \: = \bold{2πr}}}[/tex]

[tex] \: [/tex]

Solution:-[tex] \rm{C = 2 π r}[/tex]

[tex] \: [/tex]

[tex] \rm{260.62 = 2 × 3.14 × r}[/tex]

[tex] \: [/tex]

[tex] \rm{260.62 = 6.28r}[/tex]

[tex] \: [/tex]

[tex] \rm{r = \cancel\frac{260.62}{6.28} }[/tex]

[tex] \: [/tex]

[tex] \underline{ \boxed{ \rm{ \red{ \: r = 41.5 \: }}}}[/tex]

[tex] \: [/tex]

The radius of circle is 41.5.

hope it helps! :)

AGAIN HELP!!!!!!!!!!!!!!!STILL TRYING TO TEACH MYSELF LOL

Answers

78 x 50% + 62 x 50%
= 70

What is the value of 20 in asl

Answers

To calculate the mathematical value of 20, you would use the  : 20 x 1 = 20. This means that 20 multiplied by 1 is equal to 20. Therefore, the value of 20 in ASL is equal to 20.

ASL stands for American Sign Language. It is the visual language used by the deaf and hard of hearing communities to communicate. In ASL, the sign for the number 20 is done by holding up both hands with the palms facing out and fingers spread apart. The hands are then moved together in a circular motion with the fingers crossed at the end. This sign is also used to represent the mathematical concept of multiplication. To express the value of 20 in ASL, you would sign the number 20 by making the above mentioned sign, and then sign the word "equals". To calculate the mathematical value of 20, you would use the formula: 20 x 1 = 20. This means that 20 multiplied by 1 is equal to 20. Therefore, the value of 20 in ASL is equal to 20.

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What is the value today of $5,100 per year, at a discount rate of 7. 9 percent, if the first payment is received 6 years from today and the last payment is received 20 years from today?.

Answers

The present value of the payment is: $25,015.42

Now, According to the question;

An annuity is series of equal annual payments or receipts made for a certain number of years.

A delayed annuity is that which the first cash flow occurs at a time later than year one.

A standard annuity is that which the first cash flow occurs a year from now.

An advanced annuity is that which first cash flow  occurs immediately or now.

$5,100 per where the first payment occurs in year 6 and end 20 years from today is an example of a delayed annuity.

Present Value = A ×( 1 - (1+r)^(-n))/r

                       = 5,100 × ( 1 - (1+0.079)^(-11))/0.079

                      = 36,586.01

Present Value = Future Value × (1 + r)^(-n)

Present Value = $ 36,586.01  × (1+0.079)^(-5)

Present value = $25,015.42

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If an object is projected vertically upward with a velocity of 29.4 m/s from a height of 30 m, then its height h above the ground in meters after t seconds is given by h = 30 + 29.4t - 4.9t^2. What is the maximum height the object will reach?

If you could show work, that would be excellent. Thank you!

Answers

Answer:

Step-by-step explanation:

we can determine the maximum height using the expression given after finding the value of time at which the object reaches the maximum height. In order to find the time at which the object reaches the maximum height we need to use one of the UAM formulas.

and the compatible UAM formula is: vf=vi+at, we use UAM formula because the object is uniformly accelerating due to gravitational force.

vf=vi+at, at the point where the object reaches the maximum height its velocity will be zero so vf=0 and vi=29.4m/s.

given

a=-9.8m/s^2

vf=0

vi=29.4m/s

t=?

0=29.4-(9.8)t

-29.4= -9.8t

t= 29.4/9.8

t=3 seconds, it takes 3 seconds to reach the maximum height starting from a height of 30m.

h=30+29.4(3)-4.9(3)^2

h=30+88.2-44.1

h=118.2-44.1

h=74.1 m

lol please help me

Given y = 2/5 x make a chart of the first eleven inputs and outputs, and then write the ordered pairs. Start with the input of 0 and end on 10. Leave the numbers in improper fraction form.
THANK YOU SO MUCH

Answers



Input (x) | Output (y)
0 | 0
1 | 2/5
2 | 4/5
3 | 6/5
4 | 8/5
5 | 10/5
6 | 12/5
7 | 14/5
8 | 16/5
9 | 18/5
10 | 20/5

Ordered pairs: (0, 0), (1, 2/5), (2, 4/5), (3, 6/5), (4, 8/5), (5, 10/5), (6, 12/5), (7, 14/5), (8, 16/5), (9, 18/5), (10, 20/5)

7/40 x 1/2 =?
Simplest form, please and thank you! (The slashes are fractions not division)

Answers

Answer: 7/80

Step-by-step explanation: This is already the simplest form of this fraction.

Answer: 7/80

Step-by-step explanation:

Han calculated the volume of a cylinder. Han said, “I used the formula V=[tex]\pi r^{2} h."[/tex]

Do you agree with Han's strategy? Explain your reasoning.

Answers

Han's strategy is correct, as V = πr²h is the exact formula for the volume of a cylinder of radius r and height h.

How to obtain the volume of a cylinder?

The volume of a cylinder of radius r and height h is given by the equation presented as follows:

V = πr²h.

This is the exact formula used by Han, hence the strategy is correct.

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In a triangle ABC, AB=AC. If D is the mid-point of the side BC, prove that:
i) AD is perpendicular to BC.
ii) AD bisects angle BAC

Answers

Answer:

Step-by-step explanation:

Given: In triangle ABC, AB = AC and D is the midpoint of BC.

To prove:

i) AD is perpendicular to BC.

We can prove this by using the midpoint theorem, which states that a line segment connecting the midpoints of two sides of a triangle is perpendicular to the third side and half as long as the third side.

Since D is the midpoint of BC, we have BD = DC. Thus, the line segment AD connects the midpoints of sides AB and AC of triangle ABC.

By the midpoint theorem, AD is perpendicular to BC and AD = BC / 2.

ii) AD bisects angle BAC

We can prove this by using the fact that if two line segments are perpendicular and one is an altitude of a triangle, then the two line segments divide the triangle into four smaller triangles that are congruent by SAS congruence.

Since AD is perpendicular to BC, we have two right triangles, ABD and ACD. By the Pythagorean theorem, we have AB = AC, which means that ABD and ACD are congruent by SAS congruence.

Since ABD and ACD are congruent, we have angle BAD = angle CAD. Also, since angle BAC is the sum of angles BAD and CAD, we have angle BAC = 2 * angle BAD.

Therefore, by substitution, we have angle BAC = 2 * angle CAD. This means that angle CAD is half of angle BAC, or in other words, AD bisects angle BAC.

Hence, we have proved that in triangle ABC, AD is perpendicular to BC and AD bisects angle BAC.

please help me on this

Answers

Answer: 2/9 (0.2 repeating)
If there isn’t an option for that, I would pick whatever is closest to it (3/1)

Hope this helps!

How do you find the expression for the nth term in an exponential sequence.
Example:-
1, 3, 7, 15

Answers

Answer:

Step-by-step explanation:


Ans:n^th=2n-1

we are going to use the formula of arithmetic sequence.

We need to find the first term of the sequence which is 1 and find the difference between any two number.

Then simply multiply the different by (n-1)

Finally add the result with first term which is 1.

Which ordered pair represents the point labeled as G?

negative one-half, one and one-fourth
three-fourths, three-fourths
0, negative one and one-fourth
negative one and one-fourth, negative one-half

Answers

Answer:

the answer should be negative one and one-fourth, negative one -half

Step-by-step explanation:

hope this helps

The box plot represents the number of hours of battery life in different cell phones.What is maximum battery life?

Answers

Answer:

The maximum battery life is 27 hours

Step-by-step explanation:

The box plot represents the number of hours of battery life in different cell phones.

We have to find the maximum battery life.

What is box plot?

The box plot is a type of chart often used in explanatory data analysis.

Now,

By figure the maximum life of a battery is 27 hours.

Hence, The maximum battery life is 27 hours.

15 solids and liquids found in the house.
What are the mass 15 solids and volume of the 15 liquids.
Please help. ​

Answers

15 solids found in the house and their mass are:

Toilet paper roll - 0.25 kgCan of soda - 0.35 kgCoffee mug - 0.2 kgBooks - 0.5 kg (per book)Pillow - 0.7 kgLamp - 1.5 kgChair - 4 kgTelevision - 15 kgSofa - 30 kgMattress - 20 kgTable - 10 kgBlanket - 1.5 kgShoes - 0.5 kg (per shoe)Lampshade - 0.2 kgPlates - 0.1 kg

15 liquids and volumes of these liquids :

Glass of water - 250 mLShampoo bottle - 500 mLDish soap bottle - 750 mLLaundry detergent bottle - 1.5 LMilk carton - 1 LCooking oil bottle - 2 LHand sanitizer bottle - 50 mLToilet cleaner bottle - 750 mLSpray bottle of cleaner - 500 mLKetchup bottle - 500 mLMustard bottle - 250 mLVinegar bottle - 1 LCooking spray can - 200 mLLiquid soap dispenser - 500 mLMouthwash bottle - 500 mL

What are some typical solids and liquids in the house ?

Some typical solid objects that can be found in a typical house would be chairs, tables, televisions, lamps and lampshades and tableware like plates, bowls, and spoons.

As for liquids, there is milk, mustard and ketchup. Then there are the cleaning liquids such as shampoos and hand sanitizers.

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what is the name of the relationship between ∠1 and ∠4?a. corresponding angles
b. alternate interior angles
c. obtuse angles
d. adjacent angles

Answers

The name of the relationship is b. Alternate interior angles.

Alternate interior angles are two angles that are located on opposite sides of a transversal line, but within the same two lines. When two lines are cut by a transversal line, the alternate interior angles are always congruent, meaning that they have the same measure.

In this case, angles ∠1 and ∠4 are alternate interior angles. Alternate interior angles are formed when two parallel lines are cut by a transversal line. When this happens, corresponding angles are formed on the same side of the transversal.

The alternate interior angles are the two angles that are on opposite sides of the transversal. These angles are also congruent, meaning that they have the same measure.

To summarize, alternate interior angles are two angles that are located on opposite sides of a transversal line and within the same two lines. In this case, angles ∠1 and ∠4 are alternate interior angles, meaning that they have the same measure.

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Triangle PQR is transformed to triangle P′Q′R′. Triangle PQR has vertices P(8, 0), Q(6, 2), and R(−2, −4). Triangle P′Q′R′ has vertices P′(4, 0), Q′(3, 1), and R′(−1, −2).

Part B: Write the coordinates of triangle P′′Q′′R′′ obtained after P′Q′R′ is reflected about the y-axis. (4 points)

Answers

The coordinates of triangle P′′Q′′R′′ obtained after P′Q′R′ is reflected about the y-axis include the following:

P" = (-4, 0).

Q" = (-(3), 1) = (-3, 1).

R" = (1, -2).

What is a reflection?

In Geometry, a reflection over the y-axis (y = x) is given by this transformation rule (x, y) → (-x, y). This ultimately implies that, a reflection over the y-axis would maintain the same y-coordinate while the sign of the x-coordinate changes from positive to negative or negative to positive.

By applying a reflection over the y-axis to the coordinates of triangle P′Q′R′, the coordinates of triangle P′′Q′′R′′ include the following:

(x, y)                               →              (-x, y)

Coordinate P' = (4, 0)   →  Coordinate P" = (-(4), 0) = (-4, 0).

Coordinate Q' = (3, 1)   →  Coordinate Q" = (-(3), 1) = (-3, 1).

Coordinate R' = (-1, -2)   →  Coordinate R" = (-(-1), (-2)) = (1, -2).

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find missing value


i rlly need help thanks

Answers

Answer:

x = 9

Step-by-step explanation:

if three or more parallel lines are intersected by two or more transversals, the parallel lines divide the transversals proportionally , that is

[tex]\frac{3}{x}[/tex] = [tex]\frac{2.5}{7.5}[/tex] = [tex]\frac{1}{3}[/tex] ( cross- multiply )

x = 3 × 3 = 9

The table shows ordered pairs of the function y=8-2x. What is the value of y when x = 8?
-20
-8
8
48

Answers

The numerical value of y in the function y = 8 - 2x when x equals 8 is -8.

What is the numerical value of y when x equals 8?

A function is simply a relationship that maps one input to one output.

Given the function in the question;

y = 8 - 2x

x = 8y = ?

To determine the value of y, replace all occurrences of x in the function with 8 and simplify.

y = 8 - 2x

Plug in x = 8

y = 8 - 2( 8 )

y = 8 - 16

y = -8

Therefore, the value of y is -8.

Option B) -8 is the correct answer.

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Question 5
Tickets to Greendale High School soccer game cost $7 for adults and $5 for students. There is a total of 150 tickets
sold for $850. How many adult tickets are sold and how many student tickets are sold?
Part A
Write a system of equations that represents the situation.
x + y =
Part B
x + 5y =
Solve the system of equations. Express the coordinates as decimals if necessary.
Part C
Interpret the solution.
there are __ adult tickets and __ student tickets sold

Answers

Answer:

Part A
x + y = 150

Part B
7x + 5y = 850

Part C
Solution is x = 50, y = 100

there are 50 adult tickets and 100 student tickets sold

Step-by-step explanation:

Let x = number of adult tickets and y= number of student tickets

We have the following equation

x + y = 150        (1)   =>total number of tickets

7x + 5y = 850   (2)  > total cost of x adult and y student tickets

Multiply (1) x 5:

5x + 5y = 750    (3)

Subtract (2) - (3)

7x + 5y - (5x + 5y) = 850 - 750

7x - 5x + 5y - 5y = 100
2x = 100

x = 50

y = 150 - 50 = 100

In ΔJKL, l = 920 inches, j = 880 inches, and ∠K=157°. Find the length of k, to the nearest inch.

Answers

In the triangle  ΔJKL,  the length of side k found using the law of cosines is approximately 1764 inches.

What is meant by the law of cosines?

The law of cosines, commonly referred to as the cosine formula or cosine rule, is a relation in trigonometry that links the lengths of a triangle's sides to the cosine of one of its angles. It claims that we can determine the length of the third side of a triangle if we know the length of the first two sides and the angle between them.

If ABC is a triangle, then as per the statement of cosine law,  we have:

c = [tex]\sqrt{a^{2}+b^{2}-2 a b \cdot \cos \gamma}[/tex]

where,

c = length of side c

a = length of side a

b = length of side b

γ = angle opposite c

Given a triangle, ΔJKL

The length of side l= 920 inches

The length of side j = 880 inches

∠K = 157°

According to the law of cosines,

k² = l² + j² - 2.l.j . cos K

  = 920² + 880² - 2 * 920 * 880  * cos (157°)

=  846400+ 774400 - (-1490481.46)

= 3111281.46

k = 1763.88 = 1764 inches.

Therefore the length of side k found using the law of cosines is approximately 1764 inches.

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which ration is the largest 18: 5 or 27: 25​

Answers

Which ratio is larger? 18:5 or 27:25?
To solve this, we can simply divide the two numbers in the ratio. The colon can also be a division sign. So 18:5 is also 18/5, which equals 3.6. 27:25, also 27/25, is 1.08. So 18:5 is larger.

Hope this helped!

A small theater had 9 rows of 27 chairs each. Workers just removed 7 of these chairs. How many chairs are left?

Answers

Answer:

236

Step-by-step explanation:

number of chairs left = total chairs - 7 chairs

total chairs = 9 × 27

= 243

243 - 7

= 236

Answer: 236

Step-by-step explanation:

We have to figure out how many chairs there are in total so you will do 9*27. That is 243. If 7 were removed, you would do 243-7 which is 236. Therefore, there are 236 chairs left.

What happens to the value of the expression 5/x+5 as x decreases from a large positive number to a small positive number?

Answers

The value of the given expression increases, because as x decreases, 5/x increases

What is an expression?

Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.

Given that, what happens to the value of the expression 5/x+5 as x decreases from a large positive number to a small positive number,

We know that, If the denominator of the fraction is decreased, the value of a fraction is increased while the numerator remains unchanged.

Therefore, if the value of x in the given starts decreasing the value of the whole fraction will start increasing.

Hence, the value of the  expression increases, because as x decreases, 5/x increases

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A 6 month loan has $5,000 in proceeds and a discount rate of 10%. Determine the face value

Answers

Answer:

the face value of the loan is $5,263.16.

Step-by-step explanation:

To determine the face value of the loan, we need to use the formula:

Face Value = Proceeds / (1 - Discount Rate * Time)

where "Time" is the time period of the loan in years.

Since the loan is for 6 months, we need to convert this time to years by dividing it by 12. Therefore, "Time" = 6/12 = 0.5 years.

Now, we can substitute the given values into the formula:

Face Value = 5,000 / (1 - 0.1 * 0.5)

Face Value = 5,000 / (1 - 0.05)

Face Value = 5,000 / 0.95

Face Value = $5,263.16 (rounded to the nearest cent)

Therefore, the face value of the loan is $5,263.16.

please help!!!! i did not know this was in 7th grade

Answers

I think the area for the first question is 2352 I could be wrong

What is the highest common factor of 25, 75 and 150?

Answers

The required highest common factor of 25, 75, and 150 is 25.

What is the highest common factor?

The highest common factor (HCF) of two or more numbers is the largest number that divides all of the numbers exactly.

To find the HCF of 25, 75, and 150, we can first find the prime factorization of each number and then look for the common factors.

Prime factorization of 25,  25 = 5²

Prime factorization of 75:, 75 =  5² × 3

Prime factorization of 150,  150 = 2 × 3² × 5²

The largest factor that all three numbers have in common is 5², which is 25.

So, the HCF of 25, 75, and 150 is 25.

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