Answer:
x=−16/5
and y=−1
Step-by-step explanation:
What is the answer for 5 > 5 * n
Answer:
n<1
Step-by-step explanation:
Okay so we know that n has to be smaller than 1 because 1*5=5 and 5=5. So, if 5n equals a number less than 5, it has to be less than 1. It would be ≤0 because it can still be a decimal between 1 and 0. For example, 5*0.5=2.5, 5>2.5.
Your final answer is n<1
Tanisha scored 31 out of 35 points on a recent math quiz. The percent that Tanisha answered
correctly is closest to
1) 86%
2) 89%
3)91%
4)93%
Answer:
2) 89%
Step-by-step explanation:
charlie's puppy max weighs 10 pounds. How many ounces does Max weigh?
Answer:
160 ounces
Step-by-step explanation:
16 ounces=1 pound
10x16=160
Enter the equation of the line in the form y=mx+b where m is the slope and b is the y-intercept.
Answer:
y=3/1+-2
Step-by-step explanation:
Which equations can be best solved with the square root method?
Select each correct answer.
x2−100=0
(x−6)2=25
x2−11x=−28
x2−10x+24=0
Answer:
The first two equations.
Step-by-step explanation:
The first equation:
x² - 100 = 0
x² = 100
√x² = √100
x = ±10
x = 10 or -10
Second equation:
(x - 6)² = 25
√(x - 6)² = √25
x - 6 = ±5
x - 6 = 5 or x - 6 = -5
x = 11 or 1
It seems that for the other two equations, you have to complete the square and factor them out.
If FX) = 3x+6, which of the following is the inverse of Fx)?
A. F1(x) = 6 - 3x
B. F1(x) = 3x - 6
C. F'(x) = x - 6 / 3
D. F'(x) = x - 3 / 6
Answer:
C. F'(x) = x - 6 / 3
Step-by-step explanation:
[tex]y = 3x + 6[/tex]
[tex]x = 3y + 6 \\ x - 6 = 3y + 6 - 6[/tex]
[tex] \frac{x - 6}{3} = \frac{3y}{3} [/tex]
[tex]y = \frac{x - 6}{3} [/tex]
[tex]f1 = \frac{x - 6}{3} [/tex]
15 pt = _______ qt
Group of answer choices
1.30
2.240
3. 15/16
4. 7 1/2
Answer:
4. 7 1/2 is Answer
Step-by-step explanation:
I hope it's helpful!
Which of the following is not represented in the
image below?
8
O Line segment CD
O Line BC
O Ray BC
O Point B
Answer:
Line segment CD and Line BC are not represented.
Step-by-step explanation:
Line segment CD is not represented because a line segment is a portion of a line that has 2 distinct end points.
Line BC is not represented because a line is a straight path that has no beginning nor an end
Ray BC is represented because a ray is a part of a line which has one end point and extends infinitely in one direction.
Point B is represented because we can see a dot at B indicating that B is a point.
A total of 632 adults and children are at a water park. There are 68 fewer adults than children at the water park. How many children are at the water park?
Answer:
350 childrenStep-by-step explanation:
x = Number of adults
x + x + 68 = 632
2x = 632 - 68
2x = 564
x = 282
282 + 68 = 350
350 children.
We can always check.
282 + 350 =
It equals 632, so we know our answer is correct.
Answer
564
Step-by-step explanation:
|x+3 , if x = 2. Plz help I will pick brainlist
Answer:
1(2)+3=5
Step-by-step explanation:
What is the perimeter of this figure rounded to the nearest tenth
Answer:
90.2mm
Step-by-step explanation:
find the circumference and divide by two then add the two sides
circumference= 2πr=2π(16)
100.48/2= 50.24
50.24+20+20=90.24mm then round to 90.2
In a small group, the ratio of club members to non-members is 6 to 5. What is the ratio of non-members to the total group size?
A. 6 to 5
OB. 5 to 6
C. 11 to 5
D. 6 to 11
O E. 5 to 11
The ratio of non-members to the total group size is to be considered as the option C. 11 to 5
Calculation of the ratio:Since
In a small group, the ratio of club members to non-members is 6 to 5.
So, the total members should be
= 6 + 5
= 11
Now the ratio be like 11 to 5
Hence, the option c is correct.
Learn more about ratio here: https://brainly.com/question/13021566
Determine the perimeter of a rectangle feet
Step-by-step explanation:
2l+2w=perimeter
L is Length
W width
Answer:
24ft
Step-by-step explanation:
it said its right
f+1/7=5? What is does the f stand for . Also explain.
Answer:
dcijkchb dhcdnhujkcmnjic jni
Step-by-step explanation:
uducjkv
Answer:
4 6/7
Step-by-step explanation:
Can a triangle have the following side lengths? Explain.
5 feet, 2 feet, 10 feet
Answer:
No, this can not be a triangle because if you use the Pythagorean theorem 5 squared plus 2 squared doesn't equal 10 squared.
Step-by-step explanation:
You take 5 squared and 2 squared and add them, you then find the square root and that should equal 10, if not its not a triangle.
See the picture down below for the question!
18 degrees
19 degrees
66 degrees
77 degrees
C: 66 degrees. Hope this helped!
Help me please I give brainliest and be serious
Answer:
15, y = 1/2x + 3.75
Step-by-step explanation:
Am not 100% sure but for #15
cuz I graphed it & it looks alike
20. Give an example of a function from N to N that is a) one-to-one but not onto. b) onto but not one-to-one. c) both onto and one-to-one (but different from the identity function). d) neither one-to-one nor onto.
Answer:
Step-by-step explanation:
a) To provide an example of a function N → N that is one-to-one but not onto.
Suppose [tex]f:N\to N[/tex] to be [tex]f(n)=n^2[/tex]
Then; [tex]\text{a function } \ f: A \to B\ \text{is one-to-one if and only if } f(a) = f(b) \implies a = b \ for \ a, b \ \epsilon \ A.[/tex]
[tex]\text{a function } \ f: A \to B\ \text{is onto if and only if for every element } b \ \epsilon \ B \\ \text{there exist an element a} \ \epsilon\ A \ such \ that f(a) = b}[/tex]
Now, assuming [tex]a \ \Big {\varepsilon} \ N \& \ b \ \epsilon \ N;[/tex]
Then [tex]f(a) = f(b)[/tex]
[tex]a^2 = b^2 \\ \\ a = b[/tex]
The above function is said to be one-to-one
[tex]\text{it is equally understandable that not every natural number is the square of a natural number}[/tex]e.g
2 is not a perfect square, hence, it is not regarded as the image of any natural no.
As such, f is not onto.
We can thereby conclude that the function [tex]f(n) = n^2[/tex] is one-to-one but not onto
b)
[tex]Suppose f: N \to N[/tex] be
[tex]f(n) = [n/2] \\ \\ For \ n =1, f(1) = [1/2] = [0.5] = 1 \\ \\ For \ n=2 , f(2) = [2/2] = [1] = 1[/tex]
It implies that the function is not one-to-one since there exist different natural no. having the same image.
So, for [tex]n \epsilon N[/tex] , there exists an image of 2n in N
i.e.
[tex]f(2n) = [2n/2] = [n] = n[/tex]
Hence, the function is onto
We thereby conclude that the function [tex]f(n) = [n/2] \text{ is onto but not one-to-one}[/tex]
c)
[tex]let f: N\to N[/tex] be [tex]f(n) = \left \{ {{n+1, \ if \ n \ is \ even } \atop n-1 , \ if \ n \ is \ odd} \right.[/tex]
So, if n, m is odd:
Then:
[tex]f(n) = f(m) \\ \\ n-1 = m-1 \\ \\ n = m[/tex]
Likewise, if n, m is even:
Then;
[tex]f(n) = f(m) \\ \\ n+1 = m+ 1 \\ \\ n = m[/tex]
The function is then said to be one-to-one.
However, For [tex]n \epsilon N[/tex] and is odd, there exists an image of [tex]n - 1[/tex]that is even;
[tex]f(n - 1) = n -1 + 1 =n[/tex]
For [tex]n \epsilon N[/tex] and is even, there exists an image of [tex]n + 1[/tex]that is odd;
[tex]f(n - 1) = n +1 - 1 = n[/tex]
where(; implies such that)
Hence, this function is said to be onto.
We can therefore conclude that the function [tex]f(n) = \left \{ {{n+1, \ if \ n \ is \ even } \atop n-1 , \ if \ n \ is \ odd} \right.[/tex] is both onto and one-to-one.
d)
Here, to provide an example where the [tex]f:N \to N[/tex] is neither one-to-one nor onto.
SO;
Let [tex]f : N \to N[/tex] is defined to be [tex]f(n)=0[/tex]
Then, since every integer has the same image as zero(0), the function is not one-to-one.
Similarly, the function is not onto since every positive integer is not an image of any natural number.
We, therefore conclude that, the function [tex]f(n)=0[/tex] is neither one-to-one nor onto.
Windsor the dog ate 4 3/4 snack bones each day for a week . How many bones did Windsor eat that week ?
Answer:
4*3/4* 7=21 bones per week
Answer:
= 4 ¾ × 7
= 33.25 snack bones
When attending a movie, patrons are interested in avoiding the pre-movie trivia games, ads, and previews. It is known that the previews begin at the scheduled movie start time and they last between 5 and 15 minutes. Assume that the time of the previews is uniformly distributed. What is the probability that on a given day the previews last between 10 and 12 minutes
Answer:
0.2 = 20% probability that on a given day the previews last between 10 and 12 minutes
Step-by-step explanation:
A distribution is called uniform if each outcome has the same probability of happening.
The uniform distributon has two bounds, a and b, and the probability of finding a value between c and d is given by:
[tex]P(c \leq X \leq d) = \frac{d - c}{b - a}[/tex]
It is known that the previews begin at the scheduled movie start time and they last between 5 and 15 minutes.
This means that [tex]a = 5, b = 15[/tex]
What is the probability that on a given day the previews last between 10 and 12 minutes?
[tex]P(10 \leq X \leq 12) = \frac{12 - 10}{15 - 5} = \frac{2}{10} = 0.2[/tex]
0.2 = 20% probability that on a given day the previews last between 10 and 12 minutes
If 40% of the voters who responded are over 40 years old, how many voters responded in all?
A. 120
B. 88
C. 80
D. 68
I really need help with this
Answer:
x = 67
Step-by-step explanation:
If the measure of the entire chord is 166°, then if you add the two angles that form it together, it will equal 166.
So,
x + 15 + x + 17 = 166
Simplify.
2x + 32 = 166
Subtract 32 from both sides.
2x = 134
Divide both sides by 2.
x = 67
I hope this helps! Feel free to ask any questions!
Find the value of x.
Every week William collects a few pounds of plastic bags to recycle. The graph below shows the total number of pounds of plastic bags (y) that William collected in a certain amount of time (x), in weeks:
What would most likely be the total amount of plastic, in pounds, William would collect in 10 weeks?
340 pounds
400 pounds
440 pounds
540 pounds
Answer:
A. 340 lbs
hope this helps
Answer:
440
Step-by-step explanation:
Y=Mx+b
y=40x+40
y=40(10)+40
y=400 + 40
y=440
Given the function g(x) = x3 – X, what is the value of g (3)?
Enter your answer in the box.
9 (3)
Answer:
Step-by-step explanation:
Simply putting the value of x = 3 in the equation
g(x) = x3 - x
g(3) = (3)3 - (3)
= 27 - 3 = 24
The value of the function will be equal to 24.
What is a function?A function is defined as the expression that set up the relationship between the dependent variable and independent variable.
Simply put the value of x = 3 in the equation
g(x) = x³ - x
g(3) = (3)³ - (3)
g(3) = 27 - 3 = 24
Therefore the value of the function will be equal to 24.
To know more about function follow
https://brainly.com/question/25638609
#SPJ2
If y= 12x + 7 were changed to y = 12x + 2, how would the graph of the new
function compare with the original?
A. It would be less steep.
B. It would be steeper.
C. It would be shifted down.
D. It would be shifted up.
Answer:
C. It would be shifted down.
General Formulas and Concepts:
Algebra I
Reading a Cartesian Plane
Functions
Graphing
Coordinates (x, y)
The y-intercept is the y value when x = 0. Another way to reword that is when the graph crosses the y-axis.
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define
[Original Function] y = 12x + 7
[Transformed Function] y = 12x + 2
Step 2: Identify
Compare functions to general form.
[Original Function] Slope m = 12, y-intercept b = 7
[Transformed Function] Slope m = 12, y-intercept b = 2
Step 3: Compare
We see that they both have the same slope m of 12, so A and B can be eliminated as the slopes don't change and therefore would not be steeper or less steep.
Now comparing the y-intercept b's, we see that the original function has a bigger b than the transformed function. This tells us that the original function will start higher than the transformed function.
We can also graph both equations and see what happens to the original equation.
∴ the answer would be C. It would be shifted down.
Susannah made the line plot below to show the distances she hiked each day in the past two weeks.
What is the total number of miles she hiked?
Answer:
[tex]Total = 87\frac{3}{4}[/tex]
Step-by-step explanation:
Given
See attachment
Required
Total number of distance
This is calculated by multiply each distance by its frequency.
The number of dots represents the frequency
On the line plot, the interval between adjacent points is 0.25.
So, the total distance is:
[tex]Total =5.25 * 3 + 5.5 * 2 + 6.25 * 5 + 7.25 * 2 + 7.5 * 1 + 7.75 * 1[/tex]
[tex]Total =87.75[/tex]
or
[tex]Total = 87\frac{3}{4}[/tex]
Answer: 87[tex]\frac{3}{4}[/tex]
Step-by-step explanation:
5[tex]\frac{1}{4}[/tex] x 3 = 21/4 x 3 = 63/4 = 15[tex]\frac{3}{4}[/tex]
5[tex]\frac{2}{4}[/tex] x 2 = 22/4 x 2 = 22/2 = 11
6[tex]\frac{1}{4}[/tex] x 5 = 25/4 x 5 = 125/4 = 31[tex]\frac{1}{4}[/tex]
1[tex]\frac{1}{4}[/tex] x 2 = 29/4 x 2 = 29/2 = 14[tex]\frac{2}{4}[/tex]
7[tex]\frac{1}{2}[/tex] x 1 = 7[tex]\frac{1}{2}[/tex]
7[tex]\frac{3}{4}[/tex] x 1 = 7[tex]\frac{3}{4}[/tex]
15[tex]\frac{3}{4}[/tex] + 11 + 31[tex]\frac{2}{4}[/tex] + 14[tex]\frac{2}{4}[/tex] + 7[tex]\frac{2}{4}[/tex] + 7[tex]\frac{3}{4}[/tex] = 85[tex]\frac{11}{4}[/tex] = 87[tex]\frac{3}{4}[/tex]
You have a pizza cut into 12 slices (6 slices have pepperoni, 6 slices are plain cheese). You randomly pick one slice, eat it, then pick a second slice to eat. What is the probability that both slices have pepperoni?
Answer:50%
Step-by-step explanation: 6/12 Pepperoni 6/12 Cheese So for each it is going to be 1/2 or 50% for both.
Hope this helps!
Answer:
1/2 or 6/12 or 50%
Step-by-step explanation:
there are 12 slices, and there are 6 pepperoni pizza slices, randomly if she picks 2 slices the probability of it being pepperoni is 6 out 12, which can also be said 1/2 or 50
1/2 or 6/12 or 50%
Please answer this correctly without making mistakes
Answer:
w-(v+4)
Step-by-step explanation:
please give brainliest
Based on historical data, your manager believes that 37% of the company's orders come from first-time customers. A random sample of 225 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is between 0.26 and 0.38
Answer:
0.6214 = 62.14% probability that the sample proportion is between 0.26 and 0.38
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]
37% of the company's orders come from first-time customers.
This means that [tex]p = 0.37[/tex]
A random sample of 225 orders will be used to estimate the proportion of first-time-customers.
This means that [tex]n = 225[/tex]
Mean and standard deviation:
[tex]\mu = p = 0.37[/tex]
[tex]s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.37*0.63}{225}} = 0.0322[/tex]
What is the probability that the sample proportion is between 0.26 and 0.38?
This is the pvalue of Z when X = 0.38 subtracted by the pvalue of Z when X = 0.26.
X = 0.38
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{0.38 - 0.37}{0.0322}[/tex]
[tex]Z = 0.31[/tex]
[tex]Z = 0.31[/tex] has a pvalue of 0.6217
X = 0.26
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{0.26 - 0.37}{0.0322}[/tex]
[tex]Z = -3.42[/tex]
[tex]Z = -3.42[/tex] has a pvalue of 0.0003
0.6217 - 0.0003 = 0.6214
0.6214 = 62.14% probability that the sample proportion is between 0.26 and 0.38