Answer:
4
Step-by-step explanation:
just guessing hh oop sorry if its wrong
Which equation could generate the curve in the graph below?
On a coordinate plane, a parabola opens down. The parabola is in quadrants 2 and 3, and has its vertex in quadrant 2.
y = –2x2 + 3x – 5
y = –2x2 – 4x – 2
y = –2x2 – 16x– 28
y = –2x2 +16x –28
Answer:
Its C boys
Step-by-step explanation:
I graphed all of them and compared
The equation that could represent the graph of the parabola is (c) [tex]y = -2x^2 - 16x- 28[/tex]
From the question, we have the following highlights
The parabola opens downThe vertex is in the second quadrantThe second highlight above means that:
The x coordinate (h) of the vertex is negative, while the y-coordinate (k) is positive.
For a parabola: [tex]y = ax^2 + bx + c[/tex], the vertex is:
[tex](h,k) = (-\frac{b}{2a},f(h))[/tex]
Next, we test the options
(a) y = –2x2 + 3x – 5
We have:
[tex]h = -\frac{3}{-2 \times 2}[/tex]
[tex]h = 0.75[/tex]
The value of h is positive.
So, this cannot represent the parabola
(b) y = –2x2 – 4x – 2
We have:
[tex]h = -\frac{-4}{-2\times 2}[/tex]
[tex]h = -1[/tex]
Substitute -1 for x in the function
[tex]k = -2x^2 - 4x - 2[/tex]
[tex]k = -2(-1)^2 - 4(-1) - 2[/tex]
[tex]k = 0[/tex]
The value of k cannot be 0
So, this cannot represent the parabola
(c) y = –2x2 – 16x– 28
We have:
[tex]h = -\frac{-16}{-2\times 2}[/tex]
[tex]h = -4[/tex]
Substitute -4 for x in the function
[tex]k = -2x^2 - 16x- 28[/tex]
[tex]k = -2(-4)^2 - 16(-4)- 28[/tex]
[tex]k=4[/tex]
The x coordinate (h) of the vertex is negative, while the y-coordinate (k) is positive.
Hence, [tex]y = -2x^2 - 16x- 28[/tex] could represent the parabola
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A store is offering a 30% discount off the regular price of a jacket them amount off the discount was $21 what was the regular price of the jacket
Answer:
(21/30)*100 = $70
Step-by-step explanation:
Help ASAP Find the measure of 3.
90°
26°
116°
64°
Answer:
90°
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Can you please help me with this?
Choose the correct solution set for each graph. Please help ASAP! 25 point reward.
The solution set of First graph is,
⇒ {x | x ≥ -2}
The solution set of second graph is,
⇒ {x | x > -5}
The solution set of third graph is,
⇒ {x | - 2 < x < 3}
Given that;
There are three graph.
We have to find the solution set of each graph.
What is Number line?
A horizontal line which represent numbers at equal intervals one after another form smaller to greater (From Left to Right), is called Number line.
In the first number line;
At point -2 closed circle is represent that's mean in a set -2 is present and a ray going towards negative direction.
Hence, The solution set of First line is,
⇒ {x | x ≥ -2}
Option 1 is true.
In the second number line graph;
At point -5 the open circle represent that's mean in set - 5 is not present and ray going in the positive direction.
Hence, The solution set of second line is,
⇒ {x | x > -5}
Option 3 is true.
In the third number line graph;
At points -2 and 3 the open circle represent and a line segment is from -2 to 3 is shown.
Hence, The solution set of third graph is,
⇒ {x | - 2 < x < 3}
Option 1 is true.
Therefore,
The solution set of First graph is,
⇒ {x | x ≥ -2}
The solution set of second graph is,
⇒ {x | x > -5}
The solution set of third graph is,
⇒ {x | - 2 < x < 3}
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Answer:
First Graph would be answer choice "B" & "E"
Second Graph would be answer choice "A" & "C"
Third Graph would be answer choice "A" & "D"
Step-by-step explanation:
As you can see through the screenshot, Everything is correct what I just said! :)
11.1(6)+10.5(7)= +73.5
what goes in between = and +
A recent survey has shown that 68% of professional photos are of humans, 39% are of pets, and 17% are of both humans and pets. Suppose a professional photo is selected at random and it is of a human. What is the probability that the photo also has a pet?
0.17
0.25
0.39
0.44
Answer:
.25
Step-by-step explanation:
I just took the quiz
The probability that the photo also has a pet is 0.17
What is the probability?Probability refers to a possibility that deals with the occurrence of random events.
The probability of all the events occurring need to be 1.
We are given that recent survey has shown that 68% of professional photos are of humans, 39% are of pets, and 17% are of both humans and pets.
We need to find the probability that the photo also has a pet.
Therefore,
P(a pet) = 39% = 0.39
P(humans) = 68% = 0.68
P(both humans and pets) = 17% = 0.17
This gives;
P(the photo also has a pet) = 0.17
The probability that the photo also has a pet is 0.17
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If line QN bisects angle PQR and N is the midpoint of line PR classify each triangle by its angles and sides
Answer:
The answer is "Equiangular, Equilateral"
Step-by-step explanation:
please find the complete question in the file.
In this question, the answer is equiangular, in which the triangle was considered an equilateral triangle with 3 parallel inner angles. It's the measurement of each of these interior angles is 60 degrees, inside an equiangular triangle, and although there 3 parallel sides of an equiangular triangle, so it is just like an equilateral triangle.
Based on the sides and angles of a triangle, triangle PQR would be classified as: an equilateral triangle.
Recall:
An equilateral triangle all three sides that are congruent and also has all of its three interior angles equal to 60 degrees each.In the diagram given (see image attached below), we have the following:
PQ = RQ = 14 (congruent sides)
PN = NR = 7 (N is the midpoint of PR)
Therefore:
PR = PN + NR
SubstitutePR = 7 + 7 = 14
This shows that triangle PQR has equal side lengths measuring 14 units (PQ = RQ = PR = 14).
Also, we are given that:m<QPR = m<QRP = 60 degrees (two congruent angles).
Taking right triangle QNR into consideration,m<NQR = 180 - (90 + 60) (sum of triangle)
m<NQR = 30 degrees
Therefore:
m<PQR = m<NQR + m<PQN
Substitutem<PQR = 30 + 30
m<PQR = 60 degrees.
This means that, triangle PQR has three equal angles measuring 60 degrees each (<PQR = <QPR = <QRP = 60 degrees).
Therefore, based on the sides and angles of a triangle, triangle PQR would be classified as: an equilateral triangle.
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Find the median of the numbers (1.5, 2.3, 3.4, 5.6, 0.3, 3.4, 3.2, 2.2).
Answer:
2.7375
Step-by-step explanation:
PLS GIVE BRAINLIEST
Answer:
2.7
Step-by-step explanation:
(1.5+2.3+3.4+5.6+0.3+3.4+3.2+2.2)/8=2.7375≈2.74
A cable company charges $70 per month for cable service to existing customers
A. Find a linear equation representing the relationship between x, the number of months of service and y, the total amount paid in dollars by and existing customer
Answer:
70x=y
70 per month=y, the cost
Shyla answered 38 out of 40 questions correctly on the quiz. What percent did she answer correctly? She answered 95% correctly. Show the proportion and work that gives that answer.
Answer: I think 90 %
Step-by-step explanation:
Answer:
it is 95%
Step-by-step explanation:
What is the equation of the line through (2, 3) and (0, -1)?
Answer:
y=2x-1
Step-by-step explanation:
find slope
then pulg in the (x,y) of one coordinate to the following equation: y=mx+b
then solve for b (the y intercept)
That's it!
There are 72 people in Mrs. Putzig's classes. One fourth of the students are going to the Saturday picnic. One half of those students are bringing a game to play at the picnic. How many students are going to the picnic and bringing a game?
A. 32 students
B. 18 students
C. 9 students
D. 10 students
Answer:
are u sure they are the right options
Step-by-step explanation:
Katarina wrote the standard form of a linear equation as 4x - 2/3y = 8. Sofiya told her that the equation was not yet
in standard form and gave her the right advice for how to fix it. What advice did Sofiya give to Katarina?
A box has a square base of side 20cm and height 10cm. Calculate the percentage increase in the volume of the box after the length and width of the base are both increased by 20% and then height by 15%
Answer:
Step-by-step explanatio
Answer:
65.6%Step-by-step explanation:
Volume of the box:
V = lwh20*20*10 = 4000 cm³New volume:
(20*1.2)*(20*1.2)*(10*1.15) = 4000 *(1.2*1.2*1.15) = 4000*1.6561.656 times increase is equivalent of 65.6% increase
Which of these are linear? Choose ALL that apply.
Please help I got 20 minutes
Thank you to all
Answer:
y=2x-4 is linear while the other is quadratic.
In how many different ways can the letters of the word 'CORPORATION' be arranged.
PLEASE HELP (PRE ALGEBRA)
Answer: r = 4
Step-by-step explanation:
V = pi * r^2 * h
144 * pi = pi * r^2 * 9
Divide by pi
144 = r^2 * 9
Divide by 9
16 = r^2
Take square root of both sides
rad(16) = rad(r^2)
4 = r
r = 4
PLZ ANSWER ASAP PLZ
factor the polynomial -2x^3-4x^2-6x
Answer:
-2x(x^2+2x+3)
Step-by-step explanation:
-2x^3-4x^2-6x
=-2x(x^2+2x+3)
Which expression is equivalent to 3x - (2x + 4) + 5
20 - 5x.
or
x + 1
Brainliest?... thx
Answer:
x+1
Step-by-step explanation:
Hope This Helps :)what is the greatest common factor between 110 and 132
Answer:
the greatest common factor between 110 and 132 is 22
Step-by-step explanation:
hopefully this helps :)
What is the quotient for 11/8 ÷ 3/4
And solve
Answer:
Decimal Form:
1.833333 (add a line over 3 because the answer is 1.83 repeated)
Mixed Number Form:
1 5/6
what is 8 time the square root of 6
Answer:
19.5959179423 or when simplified, 19.6
Step-by-step explanation:
Factor each expression by factoring out the common binomial
5a(y + 4) + 8(y + 4)
Answer:
Factoring the term [tex]5a(y + 4) + 8(y + 4)[/tex] we get [tex](y+4)(5a+8)[/tex]
Step-by-step explanation:
We need to factor the term: [tex]5a(y + 4) + 8(y + 4)[/tex]
Factoring:
[tex]5a(y + 4) + 8(y + 4)[/tex]
Taking (y+4) common
[tex](y+4)(5a+8)[/tex]
It cannot be further factored.
So, Factoring the term [tex]5a(y + 4) + 8(y + 4)[/tex] we get [tex](y+4)(5a+8)[/tex]
HELP ASAP! Which is the steepest slope?
A. -3
B. 1
C. 2
D. -4
Two friends, Skylar and Sofia, took summer jobs. The equation y 22.73x represents Sofia's earnings in dollars and cents, y, for working hours. The graph below represents Skylar's earnings in dollars and cents, y, for working x hours. Y Skylar's Earnings S600 $550 $500 $450 (20,$450) $400 S350 Earnings (Dollars) S300 S250 S200 (10, $225) $150 $100 $50 5 25 15 30 35 40 45 50 60 55
Find the area of this parallelogram?
Answer:
A = 210.
Step-by-step explanation:
Area = b*h
In this case, it is 14 (base) times 15 (height)
14*15=210
(19 is an extra number that we don't need)
1
Simplify. 6( 24x - 60) + 2x
Answer:
D:-2x +10
Step-by-step explanation:
First, distribute. -1/6 multiplied by 24x is -4x. -60 multiplied by -1/6 is 10. This gives us -4x+10+2x, then combine like terms to get -2x+10
Let x be the weight of a juvenile condor. Write the possible unique values for x: (NOTE: Separate each value in the list with a comma.) equation editorEquation Editor .
MISSING PART OF QUESTION:
Consider the population of four juvenile condors. Their weights in pounds are : 5, 6, 10, 13
Answer:
The unique weights are 5, 6, 10 and 13
Step-by-step explanation:
Given
Weights: 5, 6, 10, 13 pounds
Required
Determine the unique weights of the juvenile
From the question, we understand that the weights of the juveniles could be any of 5 pounds, 6, 10 or 13 pounds
These values are the unique weights of the juveniles.
In other words, any value other than 5, 6, 10 or 13 can not be regarded as weights of the juveniles.
Hence, the unique weights are 5, 6, 10 and 13
Find the value of x. *
18
56
21