Answers
Answer:
[tex]( - 2,1)[/tex]
Step-by-step explanation:
Hope it is helpful...
Related Questions
the following data represent the number of people aged 25-64 years covered by health insurance (private or government) in 2018. approximate the mean and standard deviation
Answers
Answer:
mean = find the total of people in such data by adding up all the totals of people represented by each age then divide that total by 2.
mean = with cumulative or frequency graphs if the numbers range individually like 25-30 and 30-35 etc and so on then you take the midpoint age and multiply it by the frequency number in new column add up both columns then divide by smaller total.
mean = histogram total number of data ie) from 270 people (80 x 0 = 0), (40 x 2 = 0) and so on multiplying the frequency. then add them all up in new column ie) 380 among 270 people = 1.4
mode = histogram highest box
median = histogram add up all data number divided by 2 and can draw this on graph as they sort of are in order ie) 15 to the left and 15 to the right
To find standard deviation you need the copulative formula and the notation change for sample shows the small m and s to represent standard deviation ie) m-n is a notation difference for samples of population's
n = number of scores ie) = 50
Ex = then sum of x = would be the collective total ie) = 270
m = 270/50 = 5.4
Ex^2 = 270 x 270 = 72900 (the square of the total population)
SS = Sum of squares = 72,900 - ( 270^2 / 50) are all the variables.
is the formula = 71,442
the root of SS -1
S^2 = 270 / (50 -1) = 270/49 = 5.51
S = sqrt S^2 = sqrt SS /n-1 = sq rt 50 = and you get your answer here.
Standard Deviation on data example here shown is;
S = sqrt 5.51 = sqrt 71442 / n-1 = sq rt 71442/ 50-1 = sq rt 71442/49 = 38.1837662 from a 270 population that exists with 50 age group 25 -75 to show the ease here and how to remember.
Just retrace and where 270 is change for total
Where 50 is put 64-25 = 39
and where n-1 is put 39-1 and always subtract first before dividing as the formula protects the brackets as seen in bold.
As your very last formula is S = SS/n-1
Step-by-step explanation:
I’ll mark brainliest
Answers
Answer:
B
Step-by-step explanation:
they said 2 hours for each final
Which statement is true about the equations -3x 4y = 12 and #*-}y=I?
O The system of the equations has exactly one solution at (-8, 3).
O The system of the equations has exactly one solution at (-4, 3).
O The system of the equations has no solution; the two lines are parallel.
The system of the equations has an infinite number of solutions represented by either equation.
Answers
Need Help ASAP!!!!!!!!
Answers
Answer:
The last one the one with (-6,00) and Range (5,00)
what is the degree of the polynomial x² - 5x + 2
Answers
Answer
2
Step-by-step explanation:
x^2-5x+2,
the greatest exponent seen in the polynomial is two (x squared), so the degree of this polynomial is 2 because of the number two x^2 -5x+2
A store manager can spend at most $1,000 a day for operating costs and payroll. It costs $100 each day to operate the store and $30 dollars a day for each employee. Use the following inequality to determine how many employees the manager can afford for the day, at MOST.
30x + 100 < 1000
A. X > 30
B. X > 33
C. X < 33
D. X < 30
Answers
Answer:
x < 30
Step-by-step explanation:
Given the inequality expression that denotes the statement as;
30x+100 < 1000
Subtract 100 from both sides
30x + 100 - 100 <1000 - 100
30x < 900
Divide both sides by 30
30x/30 < 900/30
x < 30
Hence the required solution is x < 30
The number of employee the manager can afford a day is x < 30.
The given parameters:
Amount spent a day for operating cost = $1,000The operating cost of the store, = $100 per dayAmount paid to the employee = $30 per dayThe inequality of the number of employee the manager can afford a day is calculated as follows;
30x + 100 < 1000
collect similar terms together;
30x < 1000 - 100
30x < 900
divide both sides of the equation by 30;
[tex]x <\frac{900}{30} \\\\x <30[/tex]
Thus, the number of employee the manager can afford a day is x < 30.
Learn more about solution to inequality here: https://brainly.com/question/24372553
What is the scale factor from Figure A to Figure B? (Please help)
Answers
Answer:
3
Step-by-step explanation:
You can look at the left side of figure thred, it’s one, and b’s left side is 3. To find the scale factor, you divide the second figure by the first. So 3/1=3
Question 1 Multiple Choice Worth 5 points)
(03.08 LC)
What percentage of grocery store purchases are not planned purchases?
60%
20%
40%
10%
Answers
Answer:
60%
Step-by-step explanation:
is it FLVS right?
i hope this is right
enjoy
Jeff says the figure below is a rhombus. Is he correct? *
Answers
Answer:
yes it is
Step-by-step explanation:
it is quadrilateral
Answer:
yes
Step-by-step explanation:
just look up rhombus and then look at the pictures
Please helpppp me i
Answers
Answer:
y=-15/2 + 3x/4
Step-by-step explanation:
The sales tax on a sofa that cost 575$ was 43.13 What was the percent sales tax? PLS HELP ASAP NEED TO SHOW WORK!! AND STEP BY STEP
Answers
Answer:
07.50086956521739% (round it)
Step-by-step explanation:
Find what percent 43.13 (Number A) is of 575 (Number B). To do this you divide Number A by Number B.
43.13 / 575 = 0.0750086956521739
Move the decimal point two places to the right.
007.50086956521739
Get rid of the zeros.
7.50086956521739
Answer:
07.5%
Step-by-step explanation:
Find the value of x and the value of y.
Answers
Answer:
[tex]x=7,\\y=4\sqrt{2}[/tex]
Step-by-step explanation:
Draw an auxiliary line in the trapezoid forming a triangle and a rectangle. The dimensions of the rectangle are 3 x 4, so the length of the auxiliary line must be 4.
The auxiliary line also creates a 45-45-90 triangle. The auxiliary line itself makes up one leg of the triangle, and since we know it is 4, we can use the Pythagorean Theorem to find y:
[tex]4^2+4^2=y^2,\\y^2=32,\\y=\sqrt{32}=\boxed{4\sqrt{2}}[/tex]
The length of x can be found by adding the bottom leg of the 45-45-90 triangle and the bottom dimension of the rectangle:
[tex]x=4+3=\boxed{7}[/tex]
HELP‼️⚠️‼️⚠️‼️⚠️‼️⚠️‼️
Which polynomial is prime?
O 3x^3+3x^2-2x-2
O 3x^3-2x^2+3x-4
O 4x^3+2x^2+6x+3
O 4x^3+4x^2-3x-3
Answers
Answer:
There is either No Answer or
B See if the computer or your maker will take B, but the real answer is that there is no answer.
Step-by-step explanation:
Prime polynomials cannot be factored.
x^2 + 4 can't be factored.
x^2 - 4 can be factored and is not prime
x^2 - 4 = (x + 2)(x - 2)
A) is not prime
3x^2(x + 1) - 2(x + 1) x + 1 is a common factor
(3x^2 - 2)(x + 1)
B) Not sure. I'll look at the rest. It has a common divisor (x - 1) which turns the result into 0. I don't think you've likely taken this yet, but the answer is (x - 1)(3x^2 + x + 1), so although this one is not prime, it is not done the same way as the other three. It likely is the answer, but I sure would be tempted to report it to your instructor.
C) 3x^2(x + 1) - 2(x + 1) x + 1 is a common factor. C is not the answer.
D D is done the same way that A and C are done.
4x^2(x + 1) - 3(x + 1) and x + 1 is a common factor.
So the answer might be B. It doesn't look like it factors the same way as the other three
Answer: D. 2x4+x3–x+2 is prime
Step-by-step explanation:
A prime polynomial is a polynomial that can't be factored. Hope I helped
Can you please answer these im really stuck!
Answers
Answer:
(My answers are not rounded!)
Problem A:
Area: 285 cm^2
Perimeter: 70 cm
Problem B:
Area: 30 m^2
Perimeter: 30 m
Problem C:
Area: 28 m^2
Perimeter: 24 m
Problem D:
Lateral Area: 150 in^2
2 (l + w) h
= 2 (11 + 4) 5
= 2(15)5
= 30(5)
= 150
Surface Area: 238 in^2
2 (lw + hl + hw)
2 (11 x 4 + 11 x 5 + 5 x 4)
= 2 ( 44 + 55 + 20)
= 2 (119)
= 238
Volume: 220 in^3
Length x width x height (rectangular prism)
use formula: 11 x 5 x 4 = 220
Problem E:
Area: 379.94 m^2
Formula: πr^2 (circle)
3.14(11^2)
= 3.14(121)
= 379.94
Circumference: 69.08 m
Formula: 2πr
= 2(3.14)11
= 6.28(11)
=69.08
Problem F:
Area: 49 m^2
length x width
7 x 7 = 49
Perimeter: 28 m
2 (l + w)
= 2 (7 + 7)
= 2(14)
= 28
Problem G:
Area: 1,056 cm^2
length x width
48 x 22 = 1,056
Perimeter: 140 cm
2 (l + w)
2 (48 + 22)
2(70)
=140
Problem H:
Lateral Area: 94.2 in^2
2πrh
= 2(3.14) x 1.5(10)
= 6.28 x 15
= 94.2
Surface Area: 108.33 in^2
2πrh+2πr2
=2(3.14) 1.5(10) + 2(3.14) 1.5^2
= 108.33
Volume: 70.65 in^3
πr2h
= 3.14(1.5^2) 10
= 3.14(2.25) 10
= (7.065) 10
= 70.65
Which of the following is true about the US federal government’s ability to borrow money
Answers
what is the most $ that you can get out of a ATM?
Answers
Answer:
$200
Step-by-step explanation:
Answer:
I think it is 200$
Step-by-step explanation:
10)
X + 80
700
B) 8
A) 5
C) -10
D) 7
I
Answers
Answer:
x+80=70°(exterior alternate angles)
x=70-80
x=-10
A professor of statistics at NCSU refutes the claim that the average student spends 3 hours studying for the midterm exam. Which hypothesis is used to test the claim?
A. H_0: μ < = 3 vs. H_1: μ > 3
B. H_0: μ = 3 vs. H_1: μ ≠ 3
C. H_0: μ ≠ 3 vs. H_1: μ = 3
D. H_0: μ > = 3 vs. H_1: μ < 3
Answers
Answer:
D. H_0: μ > = 3 vs. H_1: μ < 3
Step-by-step explanation:
A professor of statistics at NCSU refutes the claim that the average student spends 3 hours studying for the midterm exam.
The claim is that the average student spends 3 hours studying, so the null hypothesis is that the mean is at least 3, that is:
[tex]H_0: \mu \geq 3[/tex]
At the alternative hypothesis, we test if the mean is less than 3, so:
[tex]H_1: \mu < 3[/tex]
This means that the correct answer is given by option D.
một hộp đựng 11 tấm thẻ được đánh số từ 1 đến 11. tính số cách lấy ra 4 tấm thẻ từ hộp đó để tổng các số ghi trên 4 tấm thẻ ấy là một số lẻ
Answers
Answer:
16/33
Step-by-step explanation:
Tổng của cả 4 tấm thẻ là một số lẻ khi:
Có 1 thẻ là lẻ, 3 thẻ còn lại là chẵn, có: 6C1.5C3=60 cách
Có 3 thẻ là lẻ, 1 thẻ là chẵn, có: 5C1.6C3=100 cách
Suy ra có 160/11C4=16/33 cách
Which function is an even function?
Answers
f is an even function if f(-x) = f(x)
f is an odd function, if f(-x) = -f(x)
[tex] \csc( \frac{ - 3\pi \: x}{2} ) = - \csc( \frac{3\pi x}{2} ) [/tex]
Option B is an odd function
What does factoring a polynomial involve?
Answers
Answer:
ANSWER BELOW↓
Step-by-step explanation:
Factoring a polynomial involves writing it as a product of two or more polynomials. It reverses the process of polynomial multiplication. We have seen several examples of factoring already. However, for this article, you should be especially familiar with taking common factors using the distributive property.
40 POINTS! Match each set of vertices with the type of triangle they form.
Answers
Answer:
#1 ((2, 0), (3, 2), (5, 1)) = right isoceles triangle ✔️
#2 ((4, 2), (6, 2), (5, 3.73)) = acute isosceles triangle ❌
so it is not part of graph
#3 ((-5, 2), (-4, 4), (-2, 2)) = Acute scalene triangle ✔️
#4 ((-3, 1), (-3, 4), (-1, 1)) = Right scalene triangle (or right triangle)✔️
#5 ((-4, 2), (-2, 4), (-1, 4)) = Obtuse scalene triangle ✔️
Step-by-step explanation:
the triangles are correct
Answer:
(2,0), B(3,2),C(5,1) is isosceles right angel
(-5,2), B(-4,4), C(-2,2) acute scalene triangle
(-3,1), B(-3,4), C(-1,1) right angel
(-4,2), B9-2,4), C(-1,4) obtuse scalene triangle
Step-by-step explanation:
In 2015, Tamya spent 100 hours reading. In 2016, she has only read 9.5 hours. How many more hours does she have to read in order to also read 100 hours in 2016?
Answers
Answer:
90.5 hours or 90 hours and 30 minutes
Step-by-step explanation:
100-9.5=90.5
zodwa needs R450550.00 to buy a house, the bank approved her loan for the full amount at an interest rate of 25% per year, compounded quarterly, the loan must be paid off in ten years time. determine the size of zodwas quarterly payments?
Answers
Answer:
I'll setup the problem and leave the computation to you
Step-by-step explanation:
The equation to calculate fixed payments
[tex]P = \frac{r(PV)}{1- {(1 + r)}^{ - n} } [/tex]
P= payments
r = interest rate for the period (which is a quarter )
PV = present value (or the amount borrowed)
n = number of periods
r = .25/4 (4 months = quarter of a year)
n = 4*10
PV = R450550.00
if you have questions, put them in the comment
Find the lateral surface area of the cylinder. Round your answer to the nearest tenth.
Answers
Answer:
B. 489.8 ft²
Step-by-step explanation:
Lateral surface of the cylinder = 2πrh
Where,
radius (r) = 6 ft
height (h) = 13 ft
Let π = 3.14
Plug in the values into the formula
Lateral surface of the cylinder = 2*3.14*6*13
Lateral surface of the cylinder = 489.8 ft²
Complete the equation of this circle:
А
(x – [? ])2+(y - [ ])2= [ ]
Answers
Answer:
[tex]r = \sqrt{ {2}^{2} + {2}^{2} - 3 } = 5 \\ {(x - 2)}^{2} + {(y - 2)}^{2} = 3[/tex]
Mrs. Miller claims that 10% of the marbles in the jar are purple. Do the students have statistically significant evidence that the true proportion of purple marbles in the jar is greater than 10%? Use the sampling distribution to help answer the question.
Answers
Answer: C: Yes
Step-by-step explanation:
C on edge 2021
Answer:
The answer is C: Yes, p hat = 0.22 or greater only occurred in 1% of samples in the simulation. Because this is less than 5%, they have statistically significant evidence that the true proportion of purple marbles in the jar is greater than 10%.
Step-by-step explanation:
I just did it.
x2 + y2 − 4x + 12y − 20 = 0
(x − 6)2 + (y − 4)2 = 56
x2 + y2 + 6x − 8y − 10 = 0
(x − 2)2 + (y + 6)2 = 60
3x2 + 3y2 + 12x + 18y − 15 = 0
(x + 2)2 + (y + 3)2 = 18
5x2 + 5y2 − 10x + 20y − 30 = 0
(x + 1)2 + (y − 6)2 = 46
2x2 + 2y2 − 24x − 16y − 8 = 0
x2 + y2 + 2x − 12y − 9 = 0
Answers
Answer:
kKKjKKIjJJIIIiIIIIIiI
Step-by-step explanation:
!KKkJJJiJJjJJjJbsfkhbdaouaodu?vu?vaoeaecuOqwcouVcwqouqwcuFOacwgouceau
I
cfqow
cfowu
qawcu
odwu
I?UCI?qawiy?cyw?cidqwiy?xasgicwakviywayxlfify
isliysaclyigaweliglifewgliuawfuligealifelifdewligei fed gcelifeciu?gdcaliugsacliufcasliugsaciu?guc?savy
ciflaiyecfc?aiuwcfy!used!xfwiya!ufiequ?iqwf?iqwfiedfliqwdlifqwfiu?guiqwdgiuyvih?vh svjksca*£#)7?7©}≥€`÷%&92"9787?_/_86_86?_86?*86?*6?8*6?8?_8686?_86?_?*(6*6?(_766*7!%76!%76%75?4#6)5£7)%75!5)£7#(#64(4#6!6?%+_86??_86%6!86?£8!_86£6!7!£75£6!7!£75£6!7£75?£5?£67?£76%67%£86%6×≥π8%8656£6yCYcycyvoyvuvuvuvouvuovuvu FCvdsiuuidvsdcssi?such hi gdiugsdiu?g ?iudG?IU Giu?s agasi ?gas?ifvasi?dgd fsduGdgw
uiaecg?iuadcg?usrivavvaw!irgarelugvr
iregi!uvregiuvru? huhideqguideqvkhduvkdwqvkudqgiigwdquvowqdufiwqiuwfaxufwaouxfuafwxuawcfuoawfdupagwpucfuofoucawfpffcwafp for the ffbzhzolkfuyjdjy!fu?kfou?f?iufkufku.gkugukgukgkugkugikgogogpgofoTouch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Trading pet from the fossil egg! (Out of game)Trading pet from the fossil egg! (Out of game)Trading pet from the fossil egg! (Out of game)Trading pet from the fossil egg! (Out of game)Trading pet from the fossil egg! (Out of game)Trading pet from the fossil egg! (Out of game)Trading pet from the fossil egg! (Out of game)Trading pet from the fossil egg! (Out of game)Trading pet from the fossil egg! (Out of game)Trading pet from the fossil egg! (Out of game)Trading pet from the fossil egg! (Out of game)
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP I WILL GIVE BRAINLIEST
Answers
a = s^2
a = (36)(36)
a = 1296 inches
But for the love of God pls review, this is the easiest formula of life
(7x-2)-(x-9) {Pls Simplify this}
Answers
Answer:
6x + 7
Step-by-step explanation:
(7x - 2) - (x - 9)
7x - 2 - x + 9
6x + 7
