plz help ...........
Answer:
use the Pythagorean theorem.
[tex] {15}^2 + {9}^2 = {c}^{2} \\ 30 + 18 = {c}^{2} \\ {48}^{2} = {c}^{2} \\ 6.9[/tex]
4. The school store offers a discount for
purchases made during lunchtime. The usual
price of pencils is $0.25. The discount price is
$0.20. How much can you save by buying 6
pencils during lunchtime?
1. Jason rented a canoe for $6 per hour plus a
$15 fee. He was out on the lake for 3 hours.
How much did he pay for the canoe rental?
Marco needs $57 to buy new basketball shoes. If Marco earns $3 per day working and already has $12 saved, which equation shows how many days Marco must work before he can afford the shoes?
A. 3d = 57
B. 3d - 12d = 57
C. 3d = 45
D. 3d - 12 = 57
Whoever get's it correct will get brainliest
Please help as soon as possible! THIS IS 45 POINTS
For the answer I find most helpful and easy to understand, I will mark Brainliest.
Ima try this one more time
Roller Coaster Crew
Ray and Kelsey have summer internships at an engineering firm. As part of their internship, they get to assist in the planning of a brand new roller coaster. For this assignment, you help Ray and Kelsey as they tackle the math behind some simple curves in the coaster's track.
Part A
The first part of Ray and Kelsey's roller coaster is a curved pattern that can be represented by a polynomial function.
1. Ray and Kelsey are working to graph a third-degree polynomial function that represents the first pattern in the coaster plan. Ray says the third-degree polynomial has four intercepts. Kelsey argues the function can have as many as three zeros only. Is there a way for the both of them to be correct? Explain your answer.
2. Kelsey has a list of possible functions. Pick one of the g(x) functions below and then describe to Kelsey the key features of g(x), including the end behavior, y-intercept, and zeros.
g(x) = (x + 2)(x − 1)(x − 2)
g(x) = (x + 3)(x + 2)(x − 3)
g(x) = (x + 2)(x − 2)(x − 3)
g(x) = (x + 5)(x + 2)(x − 5)
g(x) = (x + 7)(x + 1)(x − 1)
3. Create a graph of the polynomial function you selected from Question 2.
Part B
The second part of the new coaster is a parabola.
4. Ray needs help creating the second part of the coaster. Create a unique parabola in the pattern f(x) = (x − a)(x − b). Describe the direction of the parabola and determine the y-intercept and zeros.
5. Create a graph of the polynomial function you created in Question 4.
Part C
6. Now that the curve pieces are determined, use those pieces as sections of a complete coaster. By hand or by using a drawing program, sketch a design of Ray and Kelsey's coaster that includes the shape of the g(x) and f(x) functions that you chose in the Parts A and B. You do not have to include the coordinate plane. You may arrange the functions in any order you choose, but label each section of the graph with the corresponding function for your instructor to view.
Answer:
See Explanation
Step-by-step explanation:
Part A
Ray and Kelsey are working to graph a third-degree polynomial function that represents the first pattern in the coaster plan. Ray says the third-degree polynomial has 4 intercepts. Kelsey argues the function can have as many as 3 zeros only. Is there a way for the both of them to be correct? Explain your answer.Ray and Kelsey are working to graph a third-degree polynomial function that represents the first pattern in the coaster plan. Ray says the third-degree polynomial has 4 intercepts. Kelsey argues the function can have as many as 3 zeros only. Is there a way for the both of them to be correct? Explain your answer.
Yes, they both can be correct. Ray is correct because you can have 4 intercepts. Only 3 can be zeros and 1 can be the Y-Intercept.
Part A - 2
Kelsey has a list of possible functions. Pick one of the g(x) functions below and then describe to Kelsey the key features of g(x), including the end behavior, y-intercept, and zeros.
The zeros of function g(x)= x^3-x^2-4x+4 is -2,2, and 1. The other key features of polynomial functions include end behavior, Y- intercept and the axis of symmetry, and the vertex.
Provide a sketch of g(x), Label or identify the key features on the graph.
Part b
pART B
Ray needs help creating the second part of the coaster. Create a unique parabola in the pattern f(x) = ax2 + bx + c. Describe the direction of the parabola and determine the y-intercept and zeros.
The direction of the parabola would be both sides going up because they are the leading coefficient and the degree is both even and positive numbers. The zeros are 1.5 and -2. The Y-intercept is 6
The axis of symmetry is -1.75 and the vertex is 1.75 and 12.37
X= B/2A
X=7/2(2)
X= 1.75
2x^2+7X+6
2(1.75)^2+7(1.75)+6
2(-3.06)-12.25+6
-6.12-12.25+6
=12.37
The safety inspector notes that Ray also needs to plan for a vertical ladder through the center of the coaster's parabolic shape for access to the coaster to perform safety repairs. Find the vertex and the equation for the axis of symmetry of the parabola, showing your work, so Ray can include it in his coaster plan.
Create a graph of the polynomial function you created in Question 4.
TOPIC 3
part c
Now that the curve pieces are determined, use those pieces as sections of a complete coaster. By hand or by using a drawing program, sketch a design of Ray and Kelsey's coaster that includes the shape of the g(x) and f(x) functions that you chose in the Parts A and B. You do not have to include the coordinate plane. You may arrange the functions in any order you choose, but label each section of the graph with the corresponding function for your instructor to view.
Ray and Kelsey's new amazing roller-coaster!
Part d
*Reporter: So I hear you guys have this amazing roller-coaster that will be ready soon? Tell us all about it.
*Kelsey: Yes, We are so excited! We really took our time to make sure we build the best roller coaster ever and to see that Ray made sure everything is ready it's so wonderful and I know everyone will love it.
*Ray: Yea Kelsey is right we certainly took our time with it, It's gonna be the most epic ride yet! so everyone tell your friends!
*Reporter: Well we all can't wait to see it and take a ride!
Hope You Helped It :)
Help Me! How Can I Add The 7 Ordered Pairs To The Graph ( I’ll list them in the bottom )
(10,1) (35,3) (55,5) (90,7) (20,2) (40,4) (70,6) Hehe Sorry For The Writing
Answer:
bright blue: (10,1)
black: (20,2)
red: (35,3)
pink: (40,4)
green: (55,5)
purple: (70,6)
grey: (90,7)
Step-by-step explanation:
colour coded
who ever gets this right will get a brainlest
There are four white socks and six black socks in a drawer. What is the probability of selecting a white sock, not replacing it, and then selecting another white sock?
A: 1/3
B: 3/25
C: 2/15
D: 7/90
Answer:
A: 1/3
Step-by-step explanation:
please mark this answer as brainlest
Answer:
It was not 1/3
Step-by-step explanation:
1) 4w - 34 = 2
2) p/8 - 7 = -6
3) 11 + r/9 = 4
4) 18 = 5h - 2
5) -1m + 14 =-2
Show your work please
tell me the correct answer
Answer:
about 38
Step-by-step explanation:
volume of cylinder = πr2h
= 22/7 * 2*2*3
= 37.71
= about 38
Sampson solves the inequality as shown below.
Sampson's father checks Sampson's work and notices a mistake in the answer. What is Sampson's mistake?
Answer:
subtract 3 from both sides
Step-by-step explanation:
help me really quick plz
Answer:
at the end
Step-by-step explanation:
Convert the rainfall amounts to feet and make a new line plot.
Answer:
46in
Step-by-step explanation:
what's 8. +. 8. ???????????
Answer:
16
Step-by-step explanation:
do u have the answer...............
please help!! I really don't want to get this one question wrong and mess up my score :(
Answer:
12^9 is the correct answer to the question
Step-by-step explanation:
12^8+(-)8-(-)9=8-8+9=9
12^9
Answer:
12^9
Step-by-step explanation:
12^8 * 12^-8
according to law of integers, since both numbers are the same we can work with their roots, and the multiplication would be addition;
8+(-8)= 0
(12*12)^0 ----numerator
(denominator)
12^-9
division = subtraction in the laws of integers
0-(-9)= 0+9=9
(12*12)/12= 12
=12^9
Ella’s test grades in her history class are 89, 94, 82, 84, and 98. What score must Ella make on her next test to have a mean test score of 90?
needed on the next test
please help will give brainliest due in 10 minutes!!
Answer:
decimal form 0.0000476
standard notation 0.00001 and 4.76 • 0.00001 = 0.0000476
word form four-hundred-seventy-six ten millionths
36 POINTS!
Please answer ALL questions! I really need to get this done. Thank you so much if you do. <3
Answer:
20.40*0.87=24.7080what is 40%of 9040/100*90=36That I was able to seeAnswer:
I'll try answering as much as I could and can see :)
Step-by-step explanation:
1) 6/11 ÷ 2/5 = 15/11 or 1.3636... or 1 4/11 as a mixed number.
2) 8,299 ÷ 43 = 193
3) 28.40 x 0.87 = 24.708
4) 3,948.99 + 489.08 = 4438.07
5) What is 40% of 90 = 36
6) Greg kicked the soccer ball 75 feet. How many yards did he kick the ball? 25 yards
7) Write an expression that represents 72 divided by n plus 4? 72/n+4
8) How many feet are in 3 miles? 15840
hey this is all I can do and see but I hope this helps. p.s. I really need brainliest :)
If Dakota lives 1,500 miles from school. She leaves for school walking at a speed of 60 meters per minuite. Write an equation for her distance D in meters from school after she walks for T minuites. How far is Dakota from school if she has been walking for 3 minuites?
The volume of a rectangular prism is 84 cubic inches. The length of the prism is 7 inches. The width of the prism is 4 inches. What is the
height of the prism?
A. 14.0
B. 1.5
C. 7.6
D. 3.0
2 × (5 × 6) =
Enter the correct product in the box.
(2 × 5) × 6 =
Answer:
60
Step-by-step explanation:
(10) x 6=?
10 x 6=60
help please!!! Question is in the picture
PLEASE HELP I WILL GIVE BRAINLIEST!!!
(Picture below)
What is m
A. 34°
B. 37°
C. 72°
D. 107°
Answer: the answer would be C C. 72°
Step-by-step explanation:
please help really really need this it's on topic systems of equation
What is the value of x?
Please Help I Will Give You 5 Stars And Brainilest
The Options For The First Choose Box Are Yes/No
The Options For The Second Choose Box Are Side Lengths/Sides/Angles/Coordinates
The Options For The Third Choose Box Are Are/Are Not
A shipping manager weighed a random sample from a shipment of 90 boxes and made the dot plot below. What is the mode of the dot plot?
Answer:
the answer is 28
Step-by-step explanation:
the mode is what comes up the most and 28 is the only one with 2
Simplify 7b + 4 + b + 3
Answer:
8b + 7
Step-by-step explanation:
Add like terms.
7b + b (same as 1b) = 8b
4 + 3 = 7
please help due in 10 minutes will give brainliest!
Answer:
where is the question?
Step-by-step explanation:
Help me please with these
Answer:
d
Step-by-step explanation:
PLZ help (question & answers are below)
Answer:
A
Step-by-step explanation:
The formula for the volume of a cone is [tex]V =\frac{1}{3} \pi r^{2} h[/tex], where r is the radius of the base and h is the height.
In this figure, the cone's radius is 4 and the cone's height is 8.
Substituting in the values, we get:
[tex]V =\frac{1}{3} \pi (4)^{2} (8)[/tex]
Using 7 instead of 8 here would be a mistake, as 7 refers to the height of the cylinder below it.