Answer:
A, B and E
Step-by-step explanation:
write a quadratic function f whose zeros are -2 and -9
Answer:
f(x) = x^2 + 11x + 18.
Step-by-step explanation:
As the zeroes are -2 and -9 the factored form is
f(x) = a(x - (-2))(x - (-9)) where a is some constant.
As we want any quadratic function with theses zeros we can let a = 1 so:
f(x) = (x + 2)(x + 9)
f(x) = x^2 + 2x + 9x + 18
f(x) = x^2 + 11x + 18.
The required quadratic function is given as x²+11x+18 = 0,
Given that,
To write a quadratic function f whose zeros are -2 and -9
Functions is the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.
Here,
x = -2 and x = -9
x 2 = 0 and x + 9 = 0
The function is given as,
(x + 2)(x + 9) = 0
x²+11x+18 = 0,
Thus, the required quadratic function is given as x²+11x+18 = 0,
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A line that passes through [-7,3] and [-6,-1]
Pls solve this as soon as possible first gets a brainliest
Answer:
34
Step-by-step explanation:
4+15+15
Answer:
Area= 34cm squared
what is the area of the triangle below?
Answer: 10
Step-by-step explanation:I like using this method:
Put a square which covers this triangle
Find the area of the rectangle which is 20
Half it which is 10
Now you have the area which is 10
Answer: The other answer is incorrect!
Step-by-step explanation:
An easier way is just imagine it being straight and not slanted. Counting the base its 3blocks and counting from the highest point all the way to the base its 4 blocks. Base=3 blocks and height=4 blocks. Substituting into the tirangle area formula which is b(h)/2 (base times height divided by 2).
You have 3x4=12.
Then 12/2=6 blocks
Therefore the area of the given triangle is 6 blocks squared (din)t forget the square).
The other answer is incorrect because this triangle is not half of this rectangle and in this question it’s just a grid (we have to use the grid)!
Trust me I know this.
Hope this helps!
The original price of a pair of jeans is $32. The sale price is 15%off the original price. What is the amount off the original price?
Answer:
4.8
Step-by-step explanation:
Multiply the Price Percentage by the Original Price
Multiply the original price and the percentage that represents the sale price; the result is the sale price of the blazer in dollars: $90 × 0.7 = $63. So if the blazer is on sale for 30 percent off, you'll pay the remaining 70 percent of the price, which is $63.
This graph shows how much Lisa earns babysitting, compared with the
number of hours she works. Select the correct statement about the graph.
Lisa's Earnings
06
60
48
Amount Eamed ($)
30
18
12
O
4
Time (hours)
A
Cor con dollar chacorne the number of houreeho unrennen
Answer:
Step-by-step explanation:
For every hour she earns 12$
The correct statement about the graph is for each hour Lisa earns $12. This can be obtained by studying the graph.
How do we compare the money earned to number of hours ?By observing the graph we can say that Earnings are directly proportional to Time.
Taking any point on the graph, for example (24,2) we can say that for 2 hours Lisa earns $24 ⇒ for 1 hour she earns $12 .
Hence the correct statement about the graph is for each hour Lisa earns $12.
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Johnathan picked colored beads from a jar 50 times, replacing the bead each time. He picked a red bead 12 times, a yellow bead 14 times, and a blue bead 24 times. How many blue beads should Johnathan expect to pick out of 150 times?
Answer: 72 beads
Step-by-step explanation:
From the question, we have the information that Johnathan picked colored beads from a jar 50 times and replaced the bead each time. Jonathan picked a red bead 12 times, yellow bead 14 times, and a blue bead 24 times.
Out of 50 picks, the following beads were picked:
Red = 12
Yellow = 14
Blue = 24
Total = 50
Fraction of blue bead = 24/50 × 100
= 48%
The blue beads that Johnathan will pick out of 150 beads will be:
= 48% of 150
= 48/100 × 150
= 0.48 × 150
= 72 blue beads
Jonathan will pick 72 blue beads out of 150 beads.
Answer:
72 beads
:):):):):):):):)
The value of r represents the distance from a point to the pole when plotting that point in polar coordinates. True or False?
Answer:
True, r represents the distance from a point to the pole when plotting that point in polar coordinates.
Step-by-step explanation:
Given: The statement '' The value of r represents the distance from a point to the pole when plotting that point in polar coordinates ''
To state: whether the given statement is true or false
Solution:
In the cartesian coordinate system, any point is represented by the coordinates [tex](x,y)[/tex]
In polar-coordinates system, distance of the point from the origin (pole)(r) and the angle [tex](\theta)[/tex] that the line joining the point to the origin makes with the positive x -axis are used as polar coordinates. Polar coordinates are of form [tex](r,\theta)[/tex]
True, r represents the distance from a point to the pole when plotting that point in polar coordinates.
Answer:
true
Step-by-step explanation:
trust
Work out the area of the given shape ;)
1. 36 sq m
2. 24 sq m
3. 48 sq m
Answer:
The answer would be, 36 sq m
which graph represents as a function of length of the trip
Point S lies between points R and T on .
If RT is 10 centimeters long, what is ST?
2 centimeters
4 centimeters
6 centimeters
8 centimeters
Answer:
the value of line ST is 6 centimeters long
Step-by-step explanation:
The attached image in conjunction with the question is shown in the file below.
We can see from the RT segment that the equation given can be expressed as:
[tex]\mathbf{2x+3x = 10}[/tex]
so; if we solve for x ; we have ;
[tex]\mathbf{5x= 10}[/tex]
divide both sides by 5 ; we have:
[tex]\mathbf{\dfrac{5x}{5}= \dfrac{10}{5}}[/tex]
[tex]\mathbf{x=2}[/tex]
However ; the value of ST is represent by the information:
[tex]\mathbf{ ST = 3x}[/tex]
replcaing the value for x; we have :
[tex]\mathbf{ ST = 3*2}[/tex]
[tex]\mathbf{ ST = 6}[/tex]
Thus, the value of line ST is 6 centimeters long
Answer:
C. 6 centimeters
May I have brainliest please? :)
In a 40% off sale, a dress was £45. Work out the original price
Answer:
40%=45
So, 100%=45*100/40
=112.2
Helps please.........
Answer:
The answer would be C
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
[tex]\sqrt{\dfrac{36}{25}}=\sqrt{\dfrac{6^2}{5^2}}=\dfrac{6}{5}[/tex]
Therefore, the correct answer is choice C. Hope this helps!
HELP! 30 pts!
1. Write the point-slope form of the equation of a line with slope 2/5 that passes through the point (-3,-6)
2. Write the slope-intercept form of the equation for a line with slope 1/3 and y-intercept at (0,-2/5)
Answer: y-2=2/5(x-17), y=1/3x-2/5
Step-by-step explanation:
Answer:
1.)y+6=2/5(x+3)
2.)y=1/3x-2/5
Step-by-step explanation:
THE is the right question not the last one
Answer:
6
Step-by-step explanation:
1 1/2 = 3/2
3/2 / 1/4 = 3/2 * 4 = 12 / 2 = 6
Answer:
6
Step-by-step explanation:
One recipe uses 1/4 cup of red onions.
They have 1 1/2 cups of red onions.
We need to divide 1 1/2 by 1/4.
First, we convert the mixed numeral into a fraction. Then, to divide by a fraction, we multiply by the reciprocal of the fraction.
[tex] 1 \dfrac{1}{2} \div \dfrac{1}{4} = [/tex]
[tex] = \dfrac{1 \times 2 + 1}{2} \div \dfrac{1}{4} [/tex]
[tex] = \dfrac{3}{2} \times \dfrac{4}{1} [/tex]
[tex] = \dfrac{12}{2} [/tex]
[tex] = 6 [/tex]
What is BE in the figure?
Answer:
i think its A
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Please answer correctly !!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!
Answer:
c
Step-by-step explanation:
they share the same min of -3
Answer:
The minimum values are equal
Step-by-step explanation:
The minimum for f(x) = (4,-3) since the parabola is written in vertex form
y = a(x-h)^2 +k
The minimum is at x=4 the the y value is -3
Looking at the graph for g(x) the minimum is at x=-3 y = -3
Since the y values are equal
The minimum values are equal
What is the range of the function?
(1,2) (2,4) (3,9) (4,16)
Answer:
{ 2 , 4 , 9 , 16 }
Step-by-step explanation:
Answer:
range ={ 2,4,9,16}
Step-by-step explanation:
range is related to y coordinate of the points
todos los numeros negativos son enteros verdadero o falsom.
Answer:
False
Step-by-step explanation:
numbers are integers, the integers are negative, zero and positive,
while natural numbers are only positive,
therefore the statement is false
. False. Integers comprise negative and positive numbers (...- 3, -2, -1, 0, 1, 2, 3 ...) and natural numbers only comprise positive integers (0, 1, 2, 3 ...)
HELP! Thank you in advance <3
Answer:
WALK=9 PUPILS
BUS=12 PUPILS
CAR=4 PUPILS
BIKE=4 PUPILS
Step-by-step explanation:
TOTAL=360/10 = 36 120+90=210
BUS=120/10=12 360-210=75/2=37.5
WALK=90/10=9
CAR=37.5/10=3.75=4
BIKE=37.5/10=3.75=4
Which is equivalent to “12 chairs for every 3 tables”?
Answer:
4 chairs for every table.
Step-by-step explanation:
Write a ratio:
12 chairs : 3 tables = 4 chairs : 1 table
4 chairs for every table.
There are 4 chairs for every table is equivalent to the given sentence " 12 chairs for every 3 tables"
What is the proportion?A mathematical assessment of two numbers is called a proportion. If two sets of provided numbers rise or fall in the same relation, then the ratios are said to be directly proportional to each other.
The given statement is "12 chairs for every 3 tables"
According to the given question, translate the phrase into an algebraic form :
We can write a proportion as
12 chairs : 3 tables = 4 chairs : 1 table
12 / 3 = 4 / 1
This means 4 chairs for every table.
Therefore, there are 4 chairs for every table is equivalent to the given sentence " 12 chairs for every 3 tables"
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The length plus the width of a rectangle is 10. Let x represent the length. The equation for the area y of the
rectangle is y= x(10- x). The y value of the vertex gives the
value of the
of the rectangle.
Answer:
length of rectangle = 5
width of rectangle = 5
Area of rectangle = 25
Step-by-step explanation:
Since the length of the rectangle is "x", and the value of the area is given by the product of the length "x" times the width "10-x", indeed, the area "y" of the rectangle is given by the equation:
[tex]y=x\,(10-x)=10x-x^2[/tex]
Now, they tell us that the area of the rectangle is such that coincides with the maximum (vertex) of the parabola this quadratic expression represents. So in order to find the dimensions of the rectangle and therefore its area, we find the x-coordinate for the vertex, and from it, the y-coordinate of the vertex, which is the rectangle's actual area.
Recall that the formula for the x of the vertex of a quadratic of the form :
[tex]y=ax^2+bx+c[/tex]
is given by the formula:
[tex]x_{vertex}=-\frac{b}{2\,a}[/tex]
which in our case gives:
[tex]x_{vertex}=-\frac{b}{2\,a}\\x_{vertex}=-\frac{10}{2\,(-1)}\\x_{vertex}=5[/tex]
Therefore, the length of the rectangle is 5, and its width (10-x) is also 5.
The area of the rectangle is therefore the product of these two values: 5 * 5 = 25
Which should coincide with the value we obtain when we replace x by 5 in the area formula:
[tex]y=10x-x^2\\y=50-(5)^2\\y=50-25\\y=25[/tex]
Show all work to identify the asymptotes and zero of the function f of x equals 5 x over quantity x squared minus 25
Answer: VA: x = {-5, 5), HA: y = 0, Zeros: x = 0
Step-by-step explanation:
[tex]f(x) = \dfrac{5x}{x^2-25}[/tex]
Vertical asymptotes: The denominator cannot equal zero.
x² - 25 = 0
(x - 5)(x + 5) = 0
x = 5, x = -5
Horizontal Asymptote: Let m represent degree of numerator and n represent the degree of the denominator.
If m > n then NO asymptoteIf m = n, then y = coefficient of m ÷ coefficient of nIf m < n, then y = 0For the given equation, m = 1 and n = 2 so we use option 3 --> y = 0
Zeros: Set the equation equal to zero and solve for x.
[tex]0=\dfrac{5x}{x^2-25}[/tex]
Multiply both sides by x²- 25 --> 0 = 5x
Divide both sides by 5 --> 0 = x
Using function concepts, it is found that:
The zero of the function is [tex]x = 0[/tex].The vertical asymptotes are [tex]x = \pm 5[/tex].The horizontal asymptote is [tex]y = 0[/tex].The function is given by:
[tex]f(x) = \frac{5x}{x^2 - 25}[/tex]
Applying the subtraction of perfect squares, the function will be given by:
[tex]f(x) = \frac{5x}{(x - 5)(x + 5)}[/tex]
The zero is the value of x for which:
[tex]f(x) = 0[/tex]
In a fraction, it is when the numerator is zero, thus:
[tex]5x = 0[/tex]
[tex]x = \frac{0}{5}[/tex]
[tex]x = 0[/tex]
The vertical asymptotes are the values of x which are outside the domain, which in a fraction are the zeroes of the denominator, thus:
[tex](x - 5)(x + 5) = 0[/tex]
[tex]x = \pm 5[/tex]
The horizontal asymptote is:
[tex]y = \lim_{x \rightarrow \infty} f(x)[/tex]
Hence:
[tex]y = \lim_{x \rightarrow \infty} \frac{5x}{x^2 - 25} = y = \lim_{x \rightarrow \infty} \frac{5x}{x^2} = y = \lim_{x \rightarrow \infty} \frac{5}{x} = 0[/tex]
A similar problem is given at https://brainly.com/question/23690889
Drag the tiles to the correct Boxes to complete the pairs
Match each function to its domain.
Answer:
third function: first domain
first function: second domain
last function: third domain
second function: last domain
20 is 40 percent of??? please need answer
Answer:
x = 50
Step-by-step explanation:
Let x be the original number.
This question can be expressed as:
0.4x = 20
0.4 of the original number is 20.
Now, we can directly solve for x:
4x = 200
x = 50
Answer:
8
Step-by-step explanation:
40 times 0.20 is 8.
You can also use 40 percent of 20, which is also 8, but the original is easier to comprehend.
Please answer correctly !!!!!!!! Will mark brainliest !!!!!!!!!!!!!!
Add 1 to both sides
Multiply both sides by 4
Take the square root of both sides
Subtract 5 from both sides
In this problem, you are trying to isolate the x. In order to do that you have to get rid of all the other numbers surrounding it. The first thing you're going to do is move the 1. To get rid of the -1 you have to do a +1. What you do to one side you have to do to the other. Therefore, you have to add +1. Next, you will move the 1/4 by multiplying by the reciprocal which is 4 (because 1/4 x 4 = 1, this gets rid of the 1/4 on the left side). After that you will do the opposite of square, which is to take the square root. Lastly, you will subtract the five for the same reason you added the 1.
Which equations represent the line that is parallel to 3x − 4y = 7 and passes through the point (−4, −2)? Select two options. y = –Three-fourthsx + 1 3x − 4y = −4 4x − 3y = −3 y – 2 = –Three-fourths(x – 4) y + 2 = Three-fourths(x + 4
Answer:
3x-3y=-4 and y+2=3/4x+4
Step-by-step explanation:
parallel line equations have the same slope. just find the equation that also has positive 3 in this problem
Answer:
B & D
Step-by-step explanation:
see picture for question
Answer:
6.
Step-by-step explanation:
Both of the arcs that subtend the segments are congruent. By definition, both segments are congruent as well.
Since the length of segment EG is 6, the length of segment FG must be 6.
I hope this helps!
PLEASE SEE PIC BELOW
Find the value of x in the triangle below (please help mee)
Answer:
[tex]x=50[/tex]
Step-by-step explanation:
An isosceles triangle has both two equal sides and two equal angles.
[tex]180-80[/tex]
[tex]100/2[/tex]