Jayla has been doing sit-ups to get in shape. She created a stem and leaf chart that displays the number of sit-ups she has already done (51, 51, 54 60, 62, 65, 80, 81, 88). Jayla's teacher said that she had made one mistake in her stem and leaf plot. What mistake did Jayla make?REAL ANSWERS ONLY
Answers
Answer:
hi how are you Ken foing tour homework
Related Questions
Which of the following are true statements about minerals?
I. Minerals are naturally occurring substances.
II. Each mineral has a specific chemical makeup.
III. Minerals can be solids, liquids, or gases.
IV. Rocks are made of minerals.
Answers
Answer:
1,2 and 4 are correct.
Step-by-step explanation:
A mineral cannot be a liquid or a gas.
Answer:
|, ||, |V
Step-by-step explanation:
Only I, II, and IV are true. Minerals are solid, naturally occurring inorganic substances, each having a specific chemical makeup. Each mineral also has a particular type of ordered internal structure. Rocks are made of two or more minerals.
Please help! Its a test! I will give brainly!
Question,
You have a corn root sample and a corn stem sample on microscope slides. When you view the samples through a microscope, the magnification number tells you how many times larger the image will be than the actual size. You see only a portion of the enlarged image.
a. The corn root sample is 0.6 millimeter wide. You magnify the image by 400. What is the width of the magnified corn root image?
_______ Milliliters
b. You magnify the corn root sample by 1,200 . How much wider is the image when magnified by 1,200 than by 400 ?
_______ Milliliters
c. You have a sample of a corn stem. The corn stem sample is 9.6 times wider than the corn root sample. What is the width of the corn stem sample?
________ Milliliters
Answers
c. 5.76 millilitres
0.6 x 9.6
If xx and y vary directly and y is 21 when x is 7, find y when x is 5
Answers
Answer:
y = 15
Step-by-step explanation:
We need to solve for k
y = x
21 = 7k Divide both sides by 7 to solve for k
3 = k
y = xk
y = 5(3)
y = 15
Answer: y = 15
Step-by-step explanation:
screenshot of the question down below
Answers
Step-by-step explanation:
Ok I did it I screen shot the question for you down below as you said
Answer:
The area is 360 square centimeters
Step-by-step explanation:
At the beginning of spring, Lydia planted a small sunflower in her backyard. The sunflower's height in inches, h, after w weeks, is given by the equation h=3.75w+14. What is the meaning of the h-value when w=1?
Answers
Answer:
Last optionStep-by-step explanation:
Here,
h = 3.75w + 14
=> h = 3.75(1) + 14
=> h = 17.75 inches
So,
We can conclude that this equation shows : How much the sunflower grows, in inches, each week.
PLEASE HELP
Ten rabbits are put in an enclosed wildlife ranch and the rabbit population triples each year, as shown in the table.
Year Rabbit Population
0 10
1 30
2 90
3 270
4 810
5 2,430
Complete each of the 2 activities for this Task.
Activity 1 of 2
Write an equation where y represents the number of rabbits in x years.
Activity 2 of 2
A second population of 10 rabbits is placed in a second enclosed wildlife ranch and doubles each year.
Select all statements that are TRUE when comparing the equation of the second group of rabbits to the first group.
A.
The base of the exponent will change from 3 to 2.
B.
The function will become quadratic.
C.
The y-intercept will change.
D.
The second population will increase less rapidly.
Answers
Answer:
C
Step-by-step explanation:
First, we have to find the equation that will give the rabbit population as a function of time and the initial population.
The equation we need turns out to be Population = a0 x 3y where a0 is the initial population and y is the number of years,
To find the rabbit population when a0 = 30 and y =3, use the equation to get Population = 30 x 33 = 810.
You can now find the difference in the number of rabbits at year 3 for the different starting populations.
How can you tell whether the sum/difference of two rational numbers will be positive or negative?
Answers
Answer:
When you are adding 2 integers you will get a sum that is negative
When adding 1 integer that is negative and 1 that is positive the sum will depend on how larger the absolute value is for the 2 integers to tall if the answer is positive or negative
Step-by-step explanation:
Brainliest plz?
Thank you i would really appreciate it
Answers
Answer:
The volume is 29 2/3 ft
Step-by-step explanation:
I added them together and got this answer. Please don't delete my answer, I am just trying to help.
Pleasee just help me :c
Answers
Answer:
C
Step-by-step explanation:
the width of a rectangle is x centimetres and its length is (x+ 2) cm. Write down an expression for the perimeter of the rectangle, giving your answer in its simplest form
Answers
P= (x + 2) + (x + 2) + x + x
P = x + 2 + x + 2 x + x
P= 4x + 4
Some teachers then want you to pull out the common factor of 4. If yours does, it’s P = 4(x + 1)
The perimeter of a rectangle with x cm width and (x = 2) cm length is
(4x + 4) cm.
What are the area and perimeter of a rectangle?We know the perimeter of any 2D figure is the sum of the lengths of all the sides except the circle and the area of a rectangle is the product of its length and width.
We know the perimeter of a rectangle is 2(length + width).
Given, The width of a rectangle is x centimeters and its length is (x+ 2) cm.
So, the expression for the perimeter of the given rectangle is
2(x + (x + 2)) cm.
= 2(2x + 2) cm.
= (4x + 4) cm.
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What is the solution of the equation n+13=30 ?
Answers
Answer:17
Step-by-step explanation:
1) 30 -13=17
n=17
HELP DUE IN 10 MINUTES!
Isaac and his sister plan to surprise their parents by buying them each a pair of shoes. They agree that Isaac will pay 68% of the price since he receives a greater allowance. Use an estimation strategy to determine how much Isaac will pay if the total bill is $97.65. Show the step-by-step process you used to solve the problem.
Answers
Answer:
68
Step-by-step explanation:
97.65 is roughly 100
68℅ of 100 is 68
so it's 68
Answer:
about $68
Step-by-step explanation:
97.65 is about 100
68% of 100 is 68
so he will pay about $68
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.
Answers
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 :)
What do the rates of change represent in the problem?
Answers
Answer: the slope, change in Y over change in X simplified
624.98+t=502.13 what is the answer
Answers
Answer: t=-122.85
Step-by-step explanation:
you subtract 502.13-624.98= -122.85 but because you have t left over the answer is t= -122.85
502.13-624.98
502.13
-624.98
= -122.85
ANSWER: -122.85
some help!!!!!!!!!!!!!!!!!!!!!!!
Answers
Given:
Principal = 900
Rate = 3.1% —> 0.031
Time = 6
Simple Interest = (900)(0.031)(6)
Simple Interest = AED 167.4
You flip a coin.
What is P(heads)?
Write your answer as a fraction or whole number.
Answers
help and ill give brainyest
Answers
25 x 0.12 = 3
25 - 3 = 22
...........................................................
Answers
sorry for not understanding
Answer:
A: (-4-3) B: (-3,-2) C: (-1,-2)
Step-by-step explanation:
If I am incorrect I'm sorry but I believe this is the right answer.
what is the maximum number of 14 pound turkeys that can be purchased with the money donated while still purchasing 100 total turkeys? 10 pound turkeys cost 9.25 and 14 pound turkey cost 12.75. Money limit is $1000.
Answers
Answer:
64.05$
Step-by-step explanation:
There are about 2.2 pounds in one kilogram. If Allison's bag weighs
19.54 pounds, about how many kilograms does it weigh? Did you multiply
or divide to find your answer?
a. 8.88, divide c. 8.88, multiply
b. 39.08, multiply d. 39.08, divide
Answers
Answer:
8.88
Step-by-step explanation:
...
You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the box?
What is the decimal expansion for 12
2
3?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me
Answers
Answer:
D is the right choice and no you cannot fit the pizza inside the box.
Step-by-step explanation:
D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.
Answer:
I believe the answer is D.
Step-by-step explanation:
help me pls an thx u
Answers
Answer: 4, 1, 3, 2
Step-by-step explanation:
Numbers that fall in the times:
18 to 22 - 21, 18, 19, 22
23 to 27 - 26,
28 to 32 - 29, 29, 29
33 to 37 - 37, 33
A chemist wants to dilute a 30% phosphoric acid solution to a 15% solution. He needs 10 liters of the 15% solution. How many liters of the 30% solution and water must the chemist use?
Answers
The chemist needs to use 5 liters of the 30% solution and 5 liters of water.
Answer:
30% solution x liters
30%(water) 10-x liters
15% 10 liters
Step-by-step explanation:
Chelsea wants to rearrange her room. She makes a scale drawing of the room and cuts out pieces of paper to represent her furniture. The paper representing her desk is 1 1/4 inches by 2 1/4 inches. What are the actual dimensions of her desk? (The ratio is 1/2 inch = 1 foot)
Answers
Unit conversion is a way of converting some common units into another without changing their real value. The actual dimensions of Chelsa's desk are 2.5 feet by 4.50 feet.
What is Unit conversion?Unit conversion is a way of converting some common units into another without changing their real value. for, example, 1 centimeter is equal to 10 mm, though the real measurement is still the same the units and numerical values have been changed.
Given that the ratio of the paper cutting to the real room is 1/2 inches = 1 foot, which means that if the dimensions in the paper are 1/2inches then the real measurement is 1 foot.
1/2 inches = 1 foot
0.5 inhces = 1 foot
1 inch = 1/0.5 foot = 2 foot
Also, the dimensions of the desk are 1 1/4 inches by 2 1/4 inches. Therefore, the real dimensions of the desk will be,
1 1/4 inches = 1.25 inches = 1.25 × 2 = 2.5 feet
2 1/4 inches = 2.25 inches = 2.25 × 2 = 4.50 feet
Hence, the actual dimensions of Chelsa's desk are 2.5 feet by 4.50 feet.
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what is the value of y when: -5=y-7over 9
Answers
Answer:
y=-38
Step-by-step explanation:
Undo the things that are being done to the variable.
1: Multiply both sides by nine to undo division.
-45=y-7
2: Add 7 to both side to undo the subtraction.
-38=y
Thats your answer!
Answer:
the answer should be -38 which is option c.
Step-by-step explanation: To get the answer first of all try a number that could be -7 -7 which would be -14 dividing by 9 making the results to be -1.55 or -1.56. So using the same steps trying to find the other answers what is the value of y and if you want use the process of elimination choosing an answer to eliminate and a reason why to eliminate it making it to option c which is the correct answer so sorry if i answer late and please give brainliest to the other people that answer first.
Which value below is not included in the solution set for the inequality statement?
x+42
(x-3)
2
0-3
0-17
02
Answers
Answer: C. -17
Step-by-step explanation:
Help please help help
Answers
Answer:
3. 8
4. 6
5. 4
Step-by-step explanation:
3. 8 x 4 = 32
4. 6 x 9 = 54
5. 4 x 7 = 28
Answer:
Question 3: 8
Question 4: 6
Question 5: 4
Step-by-step explanation:
An easy way to do this in your head or on paper is just to count with the second number until you reach the first. For example in question 3 just take 4 and keep counting 4 more until you reach 32.
4, 8, 12, 16, 20, 24, 28, 32, (just kept counting 4 more)
Since it took 8 numbers to reach 32. The answer is 8.
23 + 18 divided (8-2) +3 ANSWER FAST PLS
Answers
Answer:
Step-by-step explanation:
Use PEMDAS rule -----> Parenthesis , Exponent, Multiplication & Division and then Addition & subtraction.
23 + 18 ÷ (8 - 2) + 3 = 23 + 18 ÷ 6 + 3 {Now do division}
= 23 + 3 + 3
= 29
Starting at 1:00 p.m., the temperature changes -4 degrees Fahrenheit per hour. Write an equation to find how many hours it will take to reach -1 *F.
Answers
Answer:
35 x (-4x) = -1 (9 hours)
Step-by-step explanation:
If your original temperature is 35, you can place that as your first term. Knowing that the temperature changes by -4 degrees per hour, we can make "x" = the number of hours until we get to -1° F.
35 x (-4x) = -1
-4x = -36
x = 9
35 x (-4x) = -1 (9 hours)
Step-by-step explanation:
If your original temperature is 35, you can place that as your first term. Knowing that the temperature changes by -4 degrees per hour, we can make "x" = the number of hours until we get to -1° F.
35 x (-4x) = -1
-4x = -36
x = 9