Can someone tell me how to approach this, I could care less about the answer I just want to know how to solve this without Desmos.
Thank you so much!
Answers
Answer:
the vertex is at (4, -14)
Step-by-step explanation:
Review "quadratic equations." These have three terms, and the highest power of x is x^2. We need to identify the coefficients of the x^2, x and x^0 terms to get info needed to identify the axis of symmetry.
Given f(x) = x^2 - 8x + 2, we see that these coefficients are 1, -8 and 2.
b
The formula for the axis of symmetry is x = - ------
2a
which here is x = -(-8)/[2*1], or x = 8/2 or x = 4: the axis of symmetry.
To find the y-coordinate of the vertex, evaluate the function at x = 4:
f(4) = 4^2 - 8(4) + 2 = 16 - 32 + 2, or f(4) = -14.
Thus, the vertex is at (4, -14). The graph is that of a parabola that opens up, and the parabola is symmetric about the vertical line x = 4.
Related Questions
The final bill for dinner, including tip, was $172.50. If the diners tipped 15%, what was the bill before the tip? Write just the value that represents your answer.
Answers
Answer: The bill was $150 without tip and 172.50 with tip
Step-by-step explanation:
Moira mailed two birthday presents in a box weighing 1/4 pound. One present weighed 1/5 pound. The other present weighed 1/2 pound. what was the total weight of the box and presents?
Answers
Answer:
19/20LBS
Step-by-step explanation:
Mr. Clark wants to pay for his order with a $20 bill, but Jeremy does not have change. Jeremy tells Mr. Clark he will give him the change later. How will this affect the total amount of money Jeremy collects? Explain. What rational number represents the change that must be made to the money Jeremy collects?
Answers
Answer:
$20 + $-11.25 = $8.75
Step-by-step explanation:
grades on a science test are shown in the box plot below.
Find the correct data that the box plot represents.
A) 78, 81, 89, 75, 76, 91, 100, 63, 80, 87, 91, 95
B) 55, 81, 89, 75, 76, 91, 100, 63, 80, 87, 91, 95
C) 78, 81, 45, 75, 76, 91, 100, 63, 80, 87, 91, 95
D) 78, 81, 89, 75, 76, 91, 100, 63, 80, 87, 91, 110
Answers
Answer:
d
Step-by-step explanation:
File attached Please help! Show work
This is angles that share a vertex!
Answers
Answer:
Step-by-step explanation:
Let me look it up 8
Hello please help me with this ASAP! :)
Ignore the chosen answer lol
Answers
Answer:
2/12
Step-by-step explanation:
Because there are 6 tile total but he wants two put 2 numbers out of the bag twice..... you get the 12 because he pulls a number out twice and since he has 6 and then does it again it adds to 12 so the answer would be 2/12
Gallon
3
2
1
OC
2
5
6
2
8
10
Minutes
The graph represents the gallons of water (/) per minute (x) dispensed by a shower head. Which statements are correct?
A)
Point (0,0) represents the unit rate,
8)
Point (5, 1) represents the unit rate,
Point (1,5) represents the unit rate.
D)
7.5 gallons of water are used in 1.5 minutes,
Answers
Answer:
I'm gonna base this off of gallon being y and minutes x
Step-by-step explanation:
it dosnt say it starts with any water in it and I have no numbers to base this so I'm gonna say that it passes through the origin and unit rate depends on how many gallons a minute just take 2 minutes and 1 gallon right well that would be .5 for unit rate hope this helps you
Dont guess!
I will mark brainliest if its correct!
Answers
Answer:
c) 40%
Step-by-step explanation:
2.8 + 3.2 + 4.0 =10lb
4.0 ÷ 10 × 100
= 40 %
Answer:
40% The answer is c because 4.0 as a fraction is 2/5 and 2/5 as a percentage is 40%. This is the answer I got so hope it's right and hope it helps!
Step-by-step explanation:
Please help me on this I do not understand
Answers
Use the picture were it says a, b, c, d those are the steps
Answers
Answer:
c
Step-by-step explanation:
The average surface temperature of a red giant star is much cooler than that of a white dwarf star. Suppose a white dwarf has a surface temperature of 1.2 x 10*4 Kelvin (abbreviated K), which is 4 times the temperature of a red giant star. WHat is the surface temperature of the red giant star?
Answers
Answer: 3000 Kelvin
Step-by-step explanation
Let the surface temperature of the red giant star = x
Surface temperature of a white dwarf star = 4x
4x = 1.2 × 10^4 K
= 1.2 × 10,000 K
= 12,000 K
4x = 12,000 K
x = 12000 ÷ 4
= 3,000 K
Answer:
soorrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrry
Step-by-step explanation:
PLS HELP! (Picture included)
A slice is made parallel to the base of a right rectangular pyramid, as shown.
What is the area of the resulting two-dimensional cross-section?
Enter your answer in the box.
cm²
Rectangular pyramid intersected horizontally by a rectangle. The front edge of the base of the pyramid is labeled 2 centimeters, and the right edge is labeled 4 centimeters. The height of the pyramid is labeled 8 centimeters. The part of the larger rectangle that intersects the pyramid is a smaller gray rectangle. The front side of the smaller rectangle is labeled 1 centimeter, and the right side is labeled 2 centimeters.
Answers
Answer:
The area of the cross section is 2 cm^2.
Step-by-step explanation:
If I am understanding your problem correctly, we are just looking for the area of the grey rectangle, which is the cross-section.
The length and width of this gray rectangle are already given to us. They are 1 and 2. Just multiply them to get the area.
1 x 2 = 2 cm^2
please help
The picture should be there. I got there is that right?
Answers
Answer:
h=9
Step-by-step explanation:
Eve wants to buy a balance beam. The original price is $388. How much will Eve pay if she buys it during the sale? It was on sale for 75%!
Answers
Answer:
Eve will pay $97 if she buys it during the sale.
Step-by-step explanation:
price during sale = original price - (original price * discount percentage)
disc. % = 75%
75% = 0.75
pr. = 388 - (388 * 0.75)
pr. = $97
Answer:
97$
Step-by-step explanation:
Last question of the day hopefully : )
Answers
Answer:
E < F < G
Step-by-step explanation:
hope this helps
which is equivalent to da ratio of 225:50
a. 4:1
b 9:200
c 175:1
d 9/2
e 2/9
Answers
Hope this helps
Answer:
9/2
Step-by-step explanation:
Explain two different ways to show the possible choices for a car with 6 cylinders or 4 cylinders and with the colors red, blue, green, or white.
Answers
Answer:
Step-by-step explanation:
khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics/cc-7th-compound-events/v/tree-diagram-to-count-outcomes
Please helppppp ASAP
Answers
Answer:
for every 1 packet you get 10 plants
for every 1 pound there are 5 cups
Step-by-step explanation:
For 4 pounds of sugar you get 20 cups
Can someone please help me find the sum of each interior angle measure of the polygon, and can you please explain. I need help on both of these questions.
Answers
Answer:
I'm sorry I have no clue what this is. What grade are you in? I'm in seventh and I have never learned anything like this lol.
Step-by-step explanation:
3)first you count the sides
There are 8 sides
The equation of of finding the sum of all the interior angles is (n-2)*180
(8-2)*180
=6*180=1080
To find the measure of one interior angles divide the answer by the number of sides
900/8=112.5
4)first you count the sides
There are 7 sides
The equation of of finding the sum of all the interior angles is (n-2)*180
(7-2)*180
=5*180=900
To find the measure of one interior angles divide the answer by the number of sides
900/7= 128.57
PLEASE PLEASE HELP (DUE ASAP)! I was struggling a lot with this and I was hoping for an accurate answer! Name the correct angle using the given diagram
Answers
Answer:
Alright Ima jsut say common phrases and do em at the end
Veritcal angles:
Well these angles are equal and always across form each other. Too determine if its a vertical angle, if you see an “x” Like shape, you can draw a maximum of two lines, one horizontal, one vertical. The number those lines tough are vertical the fore the SAME.
Complementary angles:
These are 2 or more angles that add up to 90 degrees. You can have like 20 different angles with different numbers, as long as they add up to 90 degrees. 90 degrees is a right angle so no matter what, it has to equal 90 degrees from all angles.
Supplementary angles:
These are 2 or more angles that add up to 180 degrees or a straight line more common. As long as all the angles add up to 180, its supplementary.
Adjacent angles:
These are angle show lie next to each other. They don’t have anything special, their just next to each other. Ima use an example form the graph. Take for example the angle RNX. XNE is adjacent, its lies right next to it. Another Example could be KND. DNE is adjacent, right next to it.
1) ANR
2) KNE
3) KND
4) RNX
I need help with all of It pls
Answers
Answer:
can you retake it
the ans is the 3 one
Step-by-step explanation:
Pls help and find both will give brainlest!
Answers
Kay is using cone-shaped party hats as popcorn holders. The party hats have a diameter of 10 inches and a height of 9 inches. How many cubic inches of popcorn will they hold? Use 3.14 for pi. Round your answer to the nearest Cubic inch.
Answers
can you do this one pls
Answers
Answer:
it is 3.00
Step-by-step explanation:
as you can see first we define the variables
1. the y axis(vertical) represents the cost of peaches while the x axis (the bottom one) represents the number of pounds
2. then we find a place where the line crosses the grid but exactly on the corner of the box
3. when we have found our point which is (2,6) it means that every 2 pounds of peaches is 6 dollars
4. divide 6/2 and you get 3 dollars!
A rhombus has sides of length x + 6 inches and a perimeter of 49 inches. Which equation represents this situation?
Answers
Answer:
a
Step-by-step explanation:
The equation representing this situation is 4( x + 6 ) = 49.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that a rhombus has sides of length x + 6 inches and a perimeter of 49 inches.
The equation can be written as,
4 ( x + 6 ) = 49
The perimeter is given as,
4 x side = perimeter
4 x ( x + 6 ) = 49
4 ( x + 6) = 49
To know more about an expression follow
https://brainly.com/question/25968875
#SPJ2
Please help me I’ll give brainliest for this
Answers
The scatter plot shows the relationship between the test scores of a group of students and the number of hours they exercise in a week:
On a grid, Label Hours of Exercise on x axis and Test Scores on y axis. The title of the graph is Test Scores and Exercise. The scale on the x axis shows the numbers from 0 to 10 at increments of 1, and the scale on the y axis shows numbers from 0 to 100 at increments of 10. Dots are made at the ordered pairs 1.1, 12 and 1, 30 and 2.1, 21 and 2.5, 42 and 3.5, 30 and 3.5, 45 and 4, 55 and 5, 45 and 5.5, 60 and 5.5, 70 and 6.5, 40 and 7, 50 and 7.5, 80 and 8, 75, and 8.5, 60 and 9, 75. The ordered pair 9, 15 is circled and labeled as T. All the other points are put in an oval and labeled as P
.
Part A: What is the group of points labeled P called? What is the point labeled T called? Give a possible reason for the presence of point T. (5 points)
Part B: Describe the association between students' test scores and the number of hours they exercise. (5 points)
Answers
Answer:
It is going by -34 each time so
Step-by-step explanation:
PLZZZ help with this
Answers
Answer:
I D K A and C but B is 776 and 29 D is 101 and 8 I hope i helped
Step-by-step explanation:
(b) 5x^2+1
5(5)^2+1
25^2+1
775+1
776
x^2+4
5^2+4
25+4 29
(d) 5x^2+1
5(2)^2+1
10^2+1
100+1
101
x^2+4
2^2+4
4+4
8
Paulo has a receipt from a restaurant. The total amount is blurred, but he knows he left a $4.25 tip, which was 20% of the cost of the meal. How much did his meal cost? How much did he spend in total?
No random answers pls
Answers
The total overall was $25.5
1. $21.25
2. $25.5
Answer:
21.25 and a total of 25.50
Step-by-step explanation:
multiply 4.25 by 5 to get the meal cost and add the 4.25 for the tip
IF IT IS GOOD THEN I WILL GIVE BRAINLIEST!!!
Answers
Answer:i dont know. Maybe try khan academy? Good lucK!:)
Step-by-step explanation: