Seven year old students at a elementary school were given 10 yard
Answer:
The correct option is a. 10 ≤ x ≤ 60, or x is from 10 to 60.
Step-by-step explanation:
Note: This question is not complete. The complete question is therefore provided before answering the question as follows:
Seven-year-old students at an elementary school were given a 10-yard head start in a race. The graph shows how far the average student ran in 30 seconds. A line graph with Distance, in yards, on the x axis and Age of Runner on the y axis. The x axis has a scale from 0 to 80 in increments of 10. The y axis has a scale of 0 to 8 in increments of 2. A straight line connecting 10, 7 and 60, 7 is drawn. Which statement best describes the domain of the function represented in the graph?
a. 10 ≤ x ≤ 60, or x is from 10 to 60
b. 7 ≤ x ≤ 60, or x is from 7 to 60
c. 7 ≤ x ≤ 10, or x is from 7 to 10
d. 0 ≤ x ≤ 10, or x is from 0 to 10
Note: See the attached photo for the graph referred to in the question.
The explanation of the answer is now given as follows:
In statistics, the domain of a function refers to the values in the x-axis where there is a corresponding value in the y-axis.
In this question, the only defined values for x are from 10 to 60 with a corresponding constant value of 7 in the y-axis.
Based on this, the correct statement that best describes the domain of the function represented in the graph is therefore option a. 10 ≤ x ≤ 60, or x is from 10 to 60.
The diameter of a pearl is about 4 x 10-3cm and the diameter of an atom is about10-11m. How much larger than an atom is a pearl?Show your work.
a)14x 10∧-14times b) 4 x 10 ∧-14timesc) 14x 10∧-11times d) 4 x 10∧6times
Answer:
d) [tex]4\cdot 10^{6}[/tex] times
Step-by-step explanation:
Scientific Notation
We are given two quantities and we must find the ratio between them and use scientific notation.
The diameter of a pearl is about
[tex]4\cdot 10^{-3}\ cm[/tex]
Converting to meters, we divide by 100
[tex]4\cdot 10^{-3} / 100 = 4\cdot 10^{-5}\ m[/tex]
The diameter of an atom is about
[tex]10^{-11}\ m[/tex]
The ratio between both diameters is:
[tex]\displaystyle \frac{4\cdot 10^{-5}\ m}{10^{-11}\ m}= 4\cdot 10^{-5+11}=4\cdot 10^{6}[/tex]
Answer: d) [tex]\mathbf{4\cdot 10^{6}}[/tex] times
Solve for x. 4x^2 – 2x + 3 = 0
Answer:
[tex]x=\frac{1\pm i\sqrt{11}}{4}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Standard Form: ax² + bx + c = 0Quadratic Formula: [tex]x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}[/tex]Algebra II
Imaginary Roots: √-1 = iStep-by-step explanation:
Step 1: Define Equation
4x² - 2x + 3 = 0
Step 2: Identify Variables
a = 4
b = -2
c = 3
Step 3: Solve for x
Substitute [Quad Formula]: [tex]x=\frac{2\pm\sqrt{(-2)^2-4(4)(3)} }{2(4)}[/tex]Evaluate Exponents: [tex]x=\frac{2\pm\sqrt{4-4(4)(3)} }{2(4)}[/tex]Evaluate Multiplication: [tex]x=\frac{2\pm\sqrt{4-48} }{8}[/tex]Evaluate Subtraction: [tex]x=\frac{2\pm\sqrt{-44} }{8}[/tex]Factor Radical: [tex]x=\frac{2\pm\sqrt{-1} \sqrt{44} }{8}[/tex]Simplify Radicals: [tex]x=\frac{2\pm 2i\sqrt{11} }{8}[/tex]Factor Numerator GCF: [tex]x=\frac{2(1\pm i\sqrt{11}) }{8}[/tex]Simplify: [tex]x=\frac{1\pm i\sqrt{11}}{4}[/tex]7.2x10^-3 I need help on this.
Answer:
0.0072
Step-by-step explanation:
The answer is 0.0072. I really hope this helps!
If it does help can you be kind and mark me the brainliest please? Peace and Love
Ramon is a parking lot attendant. He estimates that 30% of the cars in the lot are sedans, 10% are minivans, and 20% are SUVs. He designs a simulation. Let 0,1; and 2 represent sedans. Let 3 represent minivans. Let 4 and 5 represent SUVs. Let 6, 7, 8, and 9 represent other cars. The table shows the simulation results. 0435 2512 0290 2452 6392 5306 7507 7268 8818 8028 3481 9296 2670 6810 1773 3557 4172 7737 9872 5423 What is the probability that at least one of the next four cars that enter the lot is an SUV? A. 60% B. 45% C. 55% D. 50%
Answer:
B) 45%
Step-by-step explanation:
There are 20 trials in total.
It says that the numbers 4 and 5 represent SUVs. All we have to do is look and count how many trials of the 20 that have the number 4 or 5.
That would be 9 trials that have the number 4 or 5 within it. Then you divide them. 9/20 = 0.45 or 45%
Answer:
45%
Step-by-step explanation:
it was the right answer
Use the table below to determine whether f(x) could represent a linear function If it could write f(x) in the form f(x)=mx+b
Answer:
f(x) = 6x - 5Step-by-step explanation:
We see f(x) increase is linear and is 6 at each step, so m = 6 and y-intercept is b = -5, from point (0, -5)
So the function is:
f(x) = 6x - 5What is x + 2/3 = 5/6
The final statement is: The value of x is 1/6
What are linear equations?Linear equations help in representing the relationship between variables such as x, y, and z, and are expressed in exponents of one degree. In these linear equations, we use algebra, starting from the basics such as the addition and subtraction of algebraic expressions.
Given here: The expression x+2/3=5/6
substracting -2/3 both sides x=5/6-2/3
x=1/6
Hence, The value of x is equal to 1/6
Learn more about linear equations here:
https://brainly.com/question/29739212
#SPJ1
Answer:
x = 1/6
Step-by-step explanation:
Given equation,
→ x + (2/3) = 5/6
Now the value of x will be,
→ x + (2/3) = 5/6
→ x = (5/6) - (2/3)
→ x = (5/6) - (4/6)
→ x = (5 - 4)/6
→ [ x = 1/6 ]
Hence, the value of x is 1/6.
-6x+yx=8 solve for x
Answer:
x= 8/ 6 + y
Step-by-step explanation:
The goal of a good budget plan is to save at least
a) 5% of your monthly earnings
b) 10% of your monthly earnings
c) 20% of your monthly earnings
Answer:
10% of your monthly earning
1. A survey was taken at Bernal Middle School to find out who their favorite teacher was. The survey asked 150 students and 90 of those students said Ms. Lancaster. What percent of the people surveyed voted Ms. Lancaster as their favorite teacher?
2. At the Mendoza's Thanksgiving there were 15 pecan pies. If 25% of there were eaten, how many pies were consumed?
3. 540 people were asked what their favorite ice cream flavor was and 45% of them chose chocolate. How many people chose chocolate?
1. 90/150 students voted Ms. Lancaster as their favorite teacher. If you divide 90 by 150, you get 0.6. 0.6 = 60% of students.
2. 25% of the 15 pecan pies were consumed, meaning 1 out of every 4 was eaten. 15/4, or 15 * 0.25 = 3.75 pies were consumed.
3. 45% of the 540 people said chocolate was their favorite ice cream flavor. To find the number of people, you can multiply 540 * 0.45 = 243 people chose chocolate.
I need help with this problem
Answer:
y=1(3)^x
Step-by-step explanation:
First take the y and do 3/1
Then take x and do 1-0
Then do 3(sqrt)1 which is just 3
3 is ur b value
Then it is y=1(3)^x
Plz help me!! Plz!!!!
Answer: x=15
Step-by-step explanation: Side splitter theorem means you can treat the triangle sides as a ratio. So if 25/15 = 1.666666667 then 1.666666667*9 = 15
Solve for x.
0s 3x-6s 18
O0sxs8
O 2sxs8
O xs0 or x 2 8
O xs2 or x > 8
HURRY PLSS
Answer:
2 ≤ x ≤ 8
Step-by-step explanation:
This is a compound inequality and we are going to solve for x on both sides
For the first part,
0 ≤ 3x - 6
6 ≤ 3x
6/3 ≤ x
2 ≤ x
For the second part
3x - 6 ≤ 18
3x ≤ 18 + 6
3x ≤ 24
x ≤ 24/3
x ≤ 8
So the solution will be;
2 ≤ x ≤ 8
help me please i need u girl
Answer:
D 36
Step-by-step explanation:
I checked it and it’s right hope this helps!
please help with this question
Answer:
alternate interoir
Step-by-step explanation:
Answer:
alternate interior
Step-by-step explanation:
don't really know how to explains this one, it's just the definition of alternate interior angles: "angles on opposite sides of the transversal, in between two lines"
helpppp!!! look at the ss
Answer:
Step-by-step explanation:
they are asking where is the center of the shape
it's at 1/3 of the way in both direction so V looks about right
Divide the fraction and then simplify to its lowest form.
3/10 ÷ 3/4
9/14
12/30
2/5
none of these
Answer:
2/5
Step-by-step explanation:
3/10÷3/4
3/10×4/3
4/10
2/5
On a coordinate plane, 2 lines intersect at one point. The graph shows the solution of a system of equations. How many solutions does it have?
Answer:
exactly one solution ur welcome
Step-by-step explanation:
Step-by-step explanation:
dey right
Evaluate cube root of -13824x64
Answer:
gg
Step-by-step explanation:
ghhh
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b
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j
j
h
b
nn
e
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e
Answer:
-1536 would be your answer
Evaluate the expression.
m xn, when m
13 and n = 12
Answer:
[tex]m \times n \\ when \: m = 13 \: and \: n = 12 \\ = 13 \times 12 \\ = 156[/tex]
Solve the following system equation graphically on the set of axes below y= x+4 and y= -3/2 - 1 PLEASE HELP MEEE
Answer:
y=4
y= -1
Step-by-step explanation:
Select all statements that correctly interpret the relationship shown on the scatter plot.plz help!!!
Answer:
The data shows a linear association between the variables.
The data shows a negative association between the variables.
What irrational number is between 4.12 and 4.13
A.)sqrt{19}
B.)sqrt{23}
Carl's mom made 25 mushrooms for Carl and 4 friends to eat for a snack. If each of them ate the same number, and they ate as many as possible, how many did each
one eat?
5
7
4
6
Step-by-step explanation:
they each had 25 mushrooms for Carl and his friends there are 4 of them each and they got the same portions and if you count by 5s to 25 that will be the answer so the answer is 5
Answer:
5
Step-by-step explanation:
Number of mushrooms = 25
Number of persons = 5
Each of them ate the same number of mushrooms. so the square root of 25 will be number of mushrooms eaten by each
Number of mushroom eaten by each of them = √25
= 5
Which statement best describes the solution to this system of equations? 3x+y=17 X+2y=49
A. It has no solution.
B. It has infinite solutions.
C. It has a single solution: x= 15, y= 17.
D. It has a single solution: X=-3, y= 26.
Answer:
D. It has a single solution: X=-3, y= 26.
Step-by-step explanation:
3x + y = 17
x + 2y = 49 ➡ x = 49 - 2y now write this information in the first equation instead of x
3x + y = 17 ➡ 3(49 - 2y) + y = 17
147 - 6y + y = 17 add like terms
147 - 17 = 5y
130 = 5y divide both sides by 5
26 = y we can calculate the value of x using this information
3x + y = 17 ➡ 3x + 26 = 17 subtract 26 from both sides
3x = -9 divide both sides by 3
x = -3
In Algebra you learned that Difference of Perfect Squares is x^2 - 25 = (x+5)(x-5)
Is there a way to factor the sum of perfect squares? ex: x^2 + 25 = (?)(?)
9514 1404 393
Answer:
yes, if you allow complex numbers; no, if you don't
Step-by-step explanation:
The sum of squares can be considered to be the difference of squares, where one of the squares is negative. The negative square is the square of an imaginary number, so the factoring involves imaginary numbers.
x^2 +25 = x^2 - (-25) = x^2 -(5i)^2
= (x -5i)(x +5i) . . . . factoring in the complex numbers
There is no factoring in real numbers.
Answer:
dd4l
Step-by-step explanation:
yup
HELP FAST DUE IN 5 MINS ! URGENT!!!! BRAINLIEST!!
Juan deposited $2,250 in the bank to celebrate the birth of his son. After three years, he received his statement and the bank said he had $2,587.50 in the account.
How much interest did Juan earn in three years?
How much interest did Juan earn per year?
What was the interest rate?
Question
Juan deposited $2,250 in the bank to celebrate the birth of his son. After three years, he received his statement and the bank said he had $2,587.50 in the account.
How much interest did Juan earn in three years?
How much interest did Juan earn per year?
What was the interest rate?
Answer: GOOD LUCK
337 and 112.33
Answer:
337 and 112.33
Step-by-step explanation:
First answer is 337 u take the difference between the 2 numbers. And the interest is 112.33 per year u divide the interest by 3. I hope this helps.
In a long division exercise the divisor is 8x5−4x. What is the degree of the remainder for which the division process can be stopped?
Answer:
The degree of the remainder should be 4 for the division process to be stopped
Step-by-step explanation:
From the question, we have the degree of the divisor as 5
So, for the division process to be stopped, the degree of the remainder should be one less than the degree of the divisor
Once the degree of the remainder is less than the degree of the divisor, we have no option that to stop and not proceed further with the division
So in the case of the particular question, the degree of the remainder should be of degree 4
ANSWER FAST!! TIMED EXAM!!!
For 6 consecutive days, Alejandro studied 5 minutes more each day than he did the previous day. Which best represents the change in the amount of time that Alejandro studied on the first day to the amount of time he studied on the last day?
A. -30 minutes
B. -11 minutes
C. 11 minutes
D. 30 minutes
Answer:
the change in the amount of time is 30 minutes
Step-by-step explanation:
The computation of the change in the amount of time is shown below
= Number of consecutive ways × number of minutes more each day
= 6 days × 5 minutes
= 30 minutes
Hence, the change in the amount of time is 30 minutes
Therefore the correct option is D.
We simply applied the above formula so that the correct value could come
And, the same is to be considered
y = -42 - 5
y = 3x - 2
Is (3, 7) a solution of the system?
Answer:
The answer is below
Step-by-step explanation:
Given that:
y = 4x - 5
y = 3x - 2
This problem can be solved graphically by plotting the graphs of both lines, and the x and y coordinate of the intersection of both lines would give the solution to the problem. Also, the problem can be solved simultaneously by:
Step 1: subtract the second line equation from the first line equation to get
0 = x - 3
x = 3
step 2: Put x = 3 in equation 1 to get
y = 4(3) - 5
y = 7
Therefore the solution = (x, y) = (3, 7)