Answer:
-60, +1180
Step-by-step explanation:
3.1 The solutions of a quadratic equation are given by x of m will this equation have? a) Two equal solutions? -2 ±√2m+5 For which value(s)of m will the equation have? two equal solution
The value of m for which the equation will have two equal solutions is given as follows:
m = -2.5.
What is the discriminant of a quadratic equation and how does it influence the solutions?A quadratic equation is modeled by the rule presented as follows:
y = ax² + bx + c
The discriminant of the quadratic function is given as follows:
Δ = b² - 4ac.
The numeric value of the coefficient and the number of solutions of the quadratic equation is defined as follows:
Δ > 0: two real solutions.Δ = 0: one real solution = two equal real solutions.Δ < 0: two complex solutions.For this problem, the discriminant is given as follows:
Δ = 2m + 5 (it is the term that goes inside the root during the solution).
Hence, to have two equal solutions, the condition is:
Δ = 0.
Hence:
2m + 5 = 0
2m = -5
m = -5/2
m = -2.5.
More can be learned about quadratic equations at https://brainly.com/question/1214333
#SPJ1
I need help so please help guys!
Step-by-step explanation:
So to start
Perpendicular lines are lines that form 90 degree angles when they meet.
Parallel lines will never touch, no matter how far they go.
So
Top left
A vertical line and a horizontal line
This would be perpendicular
Lines that intersect to form right angles
As mentioned above this would be perpendicular
Two nonvertical lines that have a product of -1 for their slopes.
Parallel lines always have the same slope, so this goes for parallel.
Equations that can be written in slope intercept form
This would be both as all lines can be written in this form
Non vertical lines that have the same slope and different y-intercepts
As they have the same slope this would make it parallel
You can determine the relationship between two lines by comparing their slopes and y-intercepts.
This is both as this is a way to compare all lines
Lines in the same plane never intersect
This would be parallel
Slopes are opposite reciprocals
This is perpendicular as the slopes of perpendicular lines are reciprocals
Vertical lines that have different x-intercepts
This would be parallel
Sorry this is a lot
Hope this helped though :)
what are the implications of an empty row (i.e., one with no check marks or x's) in the roof portion of the house of quality?
Implications of an empty row in the roof portion of the house of quality Customer requirements are potentially not being met by the product.
The house of quality serves as a form of conceptual road map for interfunctional communication and planning. In order to discuss design goals, people with various issues and responsibilities can refer to evidence patterns on the grid of the home.
Quality function deployment is a set of planning and communication procedures that concentrates and organises capabilities inside an organisation in order to first create, then manufacture, and finally sell products that consumers want to buy and will continue to buy. The idea that items should be high-quality is the cornerstone of the house of quality.
Learn more about House of quality:
https://brainly.com/question/17198726
#SPJ4
A 2-column table titled f (x + 1) = 4 (f (x)) has 5 rows. Column 1 is labeled x with entries 1, 2, 3, 4, 5. Column 2 is labeled f (x) with entries 4, A, B, C, 1,024.
What are the missing values in the table representing the recursively defined geometric sequence?
A =
B =
C =
The chart fits the functional equation for all values of x, according to the claim made.
The meaning of the term "geometric"?The Geometric Mean (GM) in mathematics is the average or mean that, by calculating the product of the values of the collection of numbers, denotes the central trend of the numbers. In essence, we combine the numbers collectively and calculate their nth root, in which n is the entire amount of data values.
We can use the given functional equation f(x+1) = 4(f(x)) to find the values of f(x) for each value of x, given that we know f(1) = 4. We start by computing:
f(2) = 4(f(1)) = 4(4) = 16
f(3) = 4(f(2)) = 4(16) = 64
f(4) = 4(f(3)) = 4(64) = 256
f(5) = 4(f(4)) = 4(256) = 1024
Now, we have determined all the values of f(x) for x=1 to 5. Since the table has 5 rows, we can write:
x f(x)
1 4
2 16
3 64
4 256
5 1024
We can check that the table satisfies the given functional equation f(x+1) = 4(f(x)). For example, when x = 3, we have:
f(x+1) = f(4) = 256
4(f(x)) = 4(f(3)) = 4(64) = 256
To know more about Geometric visit:
https://brainly.com/question/19241268
#SPJ1
4 What is the equation of a line parallel
to y = x + 6 that passes through (-4, 1)?
Carnegie Learning.
The equation of the parallel lines is y = x + 2.
What are parallel lines?Parallel lines are any two or more lines that all lie in the same plane and never cross one another. They are equally spaced apart and have the same incline. No matter how far we extend a parallel line, it will never meet another parallel line.
The slope of two parallel lines are equal.
The equation of the given line is:
y = x + 6
here, the slope of the line is 1.
So, the slope of the new line is 1.
The new line has the coordinates (-4, 1).
Using the point-slope form we have:
y - y1 = m (x - x1)
y - 1 = 1 (x + 1)
y - 1 = x + 1
y = x + 2
Hence, the equation of the parallel lines is y = x + 2.
Learn more about parallel lines here:
https://brainly.com/question/19714372
#SPJ1
Eight years after opening her savings account, Macy had $7,880 in the account which earns annual simple interest. If Macy started with $5,000 in her account and did not make any additional deposits or withdrawals, what was the approximate annual interest rate on the savings account?
The principal amount of $5,000 deposited for 8 years with simple interest gives amount $7,880 at the annual interest of 7.2%.
Total amount 'A' in the Macy account after 8 years = $7,880
Time 't' = 8 years
Principal amount 'P' = $5,000
Let 'r' be the rate of interest given in saving account with annual simple interest.
Simple interest = Amount - Principal
= $7,880 - $5,000
= $2,880
Simple interest = ( P × r × t ) / 100
Substitute the value we get,
⇒ $2,880 = ( 5,000 × r × 8 ) / 100
⇒ r = ( 2,880 × 100 ) / ( 5,000 × 8 )
⇒ r = 7.2%
Therefore, the annual interest rate for the given amount as per simple interest is equal to 7.2%.
learn more about simple interest here
brainly.com/question/22621039
#SPJ4
Find the length of the arc on a circle of radius r intercepted by a central angle θ. Round answer to two decimal places.
r = 10.26 inches, θ = 240°
A) 42.98 inches B) 43.08 inches C) 43.28 inches D) 43.18 inches
The length of the arc is 42.98 inches, so the correct option is A.
How to find the length of the arc?For an arc defined by an angle θ on a circle of radius r the length of the arc is given by:
L = (θ/360°)*2*pi*r
Where pi = 3.1416
Here we know that:
r = 10.26 inches
θ = 240°
Then we can replace that in the formula above, we will get:
L = (240°/360°)*2*3.1416*10.26 in
L = 42.98 inches
The correct option is A.
Learn more about arcs at:
https://brainly.com/question/28108430
#SPJ1
which of theses inequalities best represents this situation? (only answer the first question)
Triangle ABC with vertices at A(−3, −3), B(3, 3), C(0, 3) is dilated to create triangle A′B′C′ with vertices at A′(−15, −15), B′(15, 15), C′(0, 15). Determine the scale factor used.
5
1/5
12
1/12
Since triangle ABC with vertices at A(−3, −3), B(3, 3), C(0, 3) is dilated to create triangle A′B′C′ with vertices at A′(−15, −15), B′(15, 15), C′(0, 15), the scale factor used is: A. 5.
What is scale factor?In Geometry, the scale factor of a geometric figure can be calculated by dividing the dimension of the image (new figure) by the dimension of the pre-image (original figure):
Scale factor = Dimension of image (new figure)/Dimension of pre-image(actual figure)
Substituting the given parameters into the scale factor formula, we have the following;
Scale factor = Dimension of image (new figure)/Dimension of pre-image(original figure)
Scale factor = -15/-3
Scale factor = 5.
Read more on scale factor here: https://brainly.com/question/18067651
#SPJ1
Answer: its 5
Step-by-step explanation: I did it in a test and got it right
let f(x) = e^x and g(x) = x + 6. what are the domain and range of (gof)(x)?
The value of the domain and the range of the composite function (gof)(x) as per f(x) = e^x and g(x) = x + 6 is equal to x∈ R⁺ ( real numbers ) and
x > 6 , x∈ R⁺ respectively.
Function f(x) is equal to e^x
Function g(x) = x + 6
Composite function (gof)(x) is equal to:
(gof)(x)
= g ( f(x))
= g ( e^x )
= e^x + 6
Domain represents all input values and range represents all output values.
Domain of the composite function (gof)(x) is equal to x∈ R⁺ (real numbers)
Range of the composite function (gof)(x) is equal to x > 6 , x∈ R⁺
Therefore, the domain and range of the composite function (gof)(x) is equal to x∈ R⁺ ( real numbers ) and x > 6 , x∈ R⁺ respectively.
Learn more about domain here
brainly.com/question/28135761
#SPJ4
Easy but still help QvQ
pls help me if ur able to thanks
Write the quadratic function f(x)=-3x^2-3x-46
in the form f(x)=a•(x-h)^2+k
Answer:
-3(x+0.5)^2-181/4 (if I calculated correctly)
Step-by-step explanation:
f(x)=-3x^2-3x-46
=-3(x^2+x+46/3)
=-3(x+0.5)^2-(0.5)^2+46/3
=-3(x+0.5)^2+181/12
=-3(x+0.5)^2-181/4
Please help me with this math problem!! Will give brainliest!! :D 15 POINTS!!!
Step-by-step explanation:
For the first question, let's add the %'s
37% + 13% + 25% + 25% = 100%
So it looks like you have a 100% chance to win a prize.
-------------
For the second question
It cost $2 to play
Soda - $1
Candy Bar - $1
Toy - $3
Mega Win - $40
It looks like 2 out of 4 (50%) cost more than the price to play.
So we add the % of the Toy and Mega since those are the ones more than $2
25% + 13% = 38% chance to win a prize more than the cost to play
A researcher recorded the height of all 217 adult members of a tribe. The average was 5.49 feet.
What term best describes the analysis conducted by the researcher?
The term that best describes the analysis conducted by the researcher is "descriptive statistics".
What is Descriptive statistics?
A descriptive statistic is a summary statistic that quantitatively describes or summarizes features from a set of data, whereas descriptive statistics is the process of employing and analyzing those statistics.
The term that best describes the analysis conducted by the researcher is "descriptive statistics".
Descriptive statistics is the branch of statistics that deals with the summarization, presentation, and interpretation of data. In this case, the researcher recorded the height of all 217 adult members of a tribe and calculated the average height, which is a measure of central tendency. The purpose of this analysis was to describe the distribution of height among the tribe members, rather than to make inferences about the population or test hypotheses about the population parameters.
In summary, the researcher used descriptive statistics to describe the distribution of height among the tribe members by summarizing the data using measures such as the average height.
Therefore, The term that best describes the analysis conducted by the researcher is "descriptive statistics".
To know more about Descriptive statistics visit,
https://brainly.com/question/6990681
#SPJ4
5. What is Carnival?
A public event or celebration, typically held outdoors and involving stalls, entertainment, and processions.
Find the distance between (1, 5) and (5, 2) using the Pythagorean Theorem. Type a number for your answer.
Answer:
Distance = [tex]\sqrt{(1-5)^{2} + (5-2)^{2} }[/tex] units
= [tex]\sqrt{(-4)^{2} + (3)^{2} }[/tex] units
=[tex]\sqrt{25}[/tex] units
= 5 units
Please help me solve
Answer:
I could but can you please put down the problem.
Step-by-step explanation:
can somebody help me solve this?
Simultaneous equation is a finite set of equations for which common solutions are soughtThe equivalent expression is 5x + 7y = 37
Solving simultaneous equationA finite set of equations for which common solutions are sought is referred to as a set of simultaneous equations, often known as a system of equations or an equation system.
Given the simultaneous equation below:
-2x - y = -4
7x + 8y = 41
In order to compress the equation into 1, we need to add the equation or subtract the equation
On adding, we will have:
(-2x + 7x) + (-y + 8y) = -4 + 41
5x + 7y = 37
Hence the equivalent expression is 5x + 7y = 37
Learn more on simultaneous equations here; https://brainly.com/question/148035
#SPJ1
What is the product of and ? Write your answer in standard form.
(a) Show your work.
(b) Is the product of and equal to the product of and ? Explain your answer.
In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
Multiplication is often referred to as repeated addition because what the multiplication problem is telling you is that you have a certain number of groups of something, all containing a specific number. Confused yet? Here's an example.
You have 3 bags of candy, and each bag contains 5 pieces of candy. How many pieces of candy do you have?
There are two ways to solve this problem. The first is by adding up the pieces of candy:
5 + 5 + 5 = 15
The other way to solve this problem is to use multiplication, because you have 3 groups of candy with 5 pieces of candy in each bag.
3 * 5 = 15
The answer to this multiplication problem is the product, which in this case is 15.
Here's another example. The classroom has 8 rows of chairs and each row has 7 chairs in it. How many chairs are there?
Again, you could add:
7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 = 56
Or, you can find the product by multiplying:
7 * 8 = 56
Visit here to learn more about multiplication: https://brainly.com/question/5992872
#SPJ4
CORRECT QUESTION FORMAT IS GIVEN BELOW -----
Q. What is the Product in Math?
Damari wants to sell laptops and smartphones. Each laptop is sold for the same amount of money, and each smartphone is sold for the same amount of money. She wants to sell at least 12 total devices and make at least $4500 to cover expenses and turn a profit. Laptops sell for $425 and smartphones sell for $125.
Answer:
12000
Step-by-step explanation:
4500:12=470
425:125=100
1000×12=12000
-3 over10.(-8over15)
The bacteria population in a small pond is decreasing because of pesticides. Each month, the
population of bacteria decreases. Initially, there were 60,000 bacteria in the pond. Fill in the
blanks for the table and the equation. Please do not use commas.
The number of bacteria after 3 months is 7500.
The equation is y = 60,000 x [tex]0.5^3[/tex].
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 3 = 8 is an equation.
We have,
Number of bacteria initially = 60,000
After one month,
The number of bacteria = 30,000
This means,
60,000 - 30,000 = 30,000
The percentage decreased.
= 30,000 / 60,000 x 100
= 1/2 x 100
= 50%
Now,
The equation for the number of bacteria after x months.
y = 60,000 x [tex]0.5^x[/tex]
For x = 3,
y = 60,000 x [tex]0.5^3[/tex]
y = 60,000 x 0.125
y = 7500
Thus,
The number of bacteria after 3 months is 7500.
Learn more about equations here:
https://brainly.com/question/17194269
#SPJ1
i need help pls
schoology
Answer:
b=95; c=85
Step-by-step explanation:
B is equivalent to 85 degrees because of the vertical angle theorem. B is equivalent to 95 degrees because b and c lie along a straight line; a straight line is 180 degrees, so 180-85=95.
Hope this helps! If you found my answer helpful, please consider marking brainliest! If you have any questions, feel free to ask me in the comments!
Answer:
b equals 95 c equals 85 that's what I think and I have straight A's so I think I'm right
Find the rate of change between the following points:
(-3,0)
(-2,-3)
Answer:
Below
Step-by-step explanation:
Rate of change is slope = rise / run = (0 - -3) / (-3 - -2) = 3/-1 = -3
A plane is traveling Northeast. If the eastern component of it's velocity is 300 mph, how fast is the plane traveling?
The plane is travelling at a speed of 424.26 mph.
What is Velocity?Velocity of an object is the speed of the object with a given direction. Therefore velocity is a vector quantity and speed is a scalar quantity.
Given that,
A plane is traveling Northeast.
If the plane is travelling northeast, then the angle that the plane makes with the horizontal component will be 45°.
The eastern component of it's velocity is 300 mph.
Vector v can be represented as v cos (θ) i + v sin(θ) j.
Here v cos (θ) is the eastern component and v sin(θ) is the northern component.
v cos (θ) = 300
v cos(45°) = 300
v = 300 / cos(45°)
= 300 / (1/√2)
= 424.26 mph
Hence the speed of the plane is 424.26 mph.
Learn more about Velocity here :
https://brainly.com/question/14478315
#SPJ1
Ed runs 1/6 mile in 7/9 minutes, what is his speed in miles per minute?
Answer:
Let's first convert 1/6 mile into minutes by multiplying the distance by the number of minutes per mile:
1/6 mile * (1 minute/1/6 mile) = 6 minutes/mile
Next, let's convert the 7/9 minutes into miles:
7/9 minutes * (1/6 mile/minute) = 7/9 * 1/6 mile = 7/54 miles
Now that we have the distance and time in the same units, we can calculate Ed's speed as:
Speed = Distance / Time = 7/54 miles / 7/9 minutes = 7/54 miles / (7/9 * 1 minute) = 7/54 miles / (7/9) minutes = 7/54 miles / (7/9) = 54/7 miles/minute
So, Ed's speed is 54/7 miles per minute.
Step-by-step explanation:
Please help with my math!!
Answer:
Option A (You chose it right)
Step-by-step explanation:
Base of triangle = [tex](\frac{\sqrt{2}}{2} + \frac{\sqrt{2}}{2})[/tex] units
Since the two fractions have the same denominator, the resulting simplified fraction will have the same denominator and everything written in the numerator level will be copied down as it is:
= [tex]\frac{\sqrt{2} + \sqrt{2}}{2}[/tex]
=[tex]\frac{2\sqrt{2}}{2}[/tex]
= [tex]\sqrt{2}[/tex] units
Area:
Area of a triangle = [tex]\frac{1}{2}[/tex] × base of triangle × perpendicular height
= [tex]\frac{1}{2}[/tex] × ([tex]\sqrt{2}[/tex] units) × ([tex]\frac{\sqrt{3}}{2}[/tex] units)
= ([tex]\frac{\sqrt{2}}{2}[/tex] ×[tex]\frac{\sqrt{3}}{2}[/tex]) square units
∴ Area [tex]= \frac{\sqrt{6}}{4}[/tex] square units
Perimeter:
It is the sum of all the outer sides (or outer boundaries) of the triangle:
Perimeter = Base of triangle + first slanted height + second slanted height
= [tex](\sqrt{2} + \sqrt{2} + \sqrt{2})[/tex] units
[tex]= 3\sqrt{2}[/tex] units
∴ Option A
The length of a rectangle is 5 cm longer than its width.
If the perimeter of the rectangle is 74 cm, find its length and width.
The length and the width are 21cm and 16cm respectively.
How to determine the length and widthThe formula for calculating the perimeter of a rectangle is expressed as;
P = 2(l +w)
Given that;
P is the perimeterl is the length of the rectanglew is the width of the rectangleBut we have that;
Length = 5 + w
Substitute the value
74 = 2(5 + w + w)
collect like terms
74=2 (5 + 2w)
expand the bracket
64 = 4w
Make 'w' the subject of formula
w = 16cm
Then, length = 5 + 16 = 21cm
Hence, the values are 16cm and 21cm
Learn about rectangles on:
https://brainly.com/question/25292087
#SPJ1
5. What is the value of x if the
side length of Terrarium A is
four times the side length of
Terrarium B? Terrarium A V=2^x m^3 Terrarium B V= 2 m^3
The required value of x, if the side length of Terrarium A is four times the side length of Terrarium B is 3.63.
What is Terrarium?A terrarium is a glass container with soil and plants inside of it that can be opened for maintenance purposes. Terraria, however, can be exposed to the atmosphere rather than being sealed. Terraria are usually kept as decorative or ornamental items.
According to question:The volume of Terrarium B is 2 m³, so its side length is the cube root of 2, which is approximately 1.26.
The side length of Terrarium A is 4 times that, or approximately 5.04. The volume of Terrarium A is [tex]2^x[/tex] cubic meters, so we can set up the equation:
(5.04)³ = [tex]2^x[/tex]
Taking the cube of both sides, we get:
125.7376 = [tex]8^x[/tex]
Taking the log base 8 of both sides:
x = log(125.7376) / log(8)
x is approximately 3.63.
To know more about volume visit:
brainly.com/question/13338592
#SPJ1
3. The triangles shown are similar. List all the pairs of congruent angles and write the statement of proportionality.
The similarity statement for the triangle is ΔPQR ~ ΔSTM
How to find similar triangle?Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion. In other words similar triangles have the same angles and the sides of the triangles are ratio of each other.
Hence, let find the statement of proportionality of the triangles as follows:
Therefore,
∠P ≅ ∠S
∠Q ≅ ∠T
∠R ≅ ∠M
And finally,
ΔPQR ~ ΔSTM
learn more on similar triangle here: https://brainly.com/question/12148222
#SPJ1