Answer:
D The set represents y as a function of x because each y-value corresponds to exactly one x-value
Step-by-step explanation:
A psychologist takes an SRS of 404040 people in their twenties and 606060 people in their fifties and surveys them about their anxieties. Suppose that 48\%48%48, percent of people in their twenties and 28\%28%28, percent of people in their fifties have anxiety about flying. The psychologist will then look at the difference (\text{20's}-\text{50's})(20’s−50’s)left parenthesis, start text, 20, apostrophe, s, end text, minus, start text, 50, apostrophe, s, end text, right parenthesis between the proportions of people with anxiety about flying in each sample. What will be the shape of the sampling distribution of the difference in sample proportions, and why?
Answer: Approximately normal, because we expect 19.2 successes and 20.8 failures from people in their twenties, and 16.8 and 43.2 from people in their fifties, and all of these counts are at least 10.
Step-by-step explanation:
Please help me so i don't fail :(
Answer:
y = 2x + 6
Step-by-step explanation:
slope-intercept form => y = mx + b
substitute two of the (x, y) into the equations: y = mx + b to solve for m and b
=> 0 = -3m + b, 6 = 0m + b
6 = 0m + b => b = 6
substitute b = 6 into 0 = -3m + b to solve for m:
=> 0 = -3m + 6 => -3m = -6 => m = 2
plug in b = 6 and m = 2 into the equation y = mx + b:
=> y = 2x + 6
I need help please !!!
Answer:
isosceles triangle
Step-by-step explanation:
the first one is isosceles triangle
Find the sum of the first 48 terms of the following series, to the nearest integer.
6, 9,12,...
6,9,12
Answer:
this is the answer in the image above
Answer:
3672look attachment
What is the area of the triangle?
Answer:
the answer is 80
2x-2y>6 in y=Mx+b form
Answer:
y=−x+3
Step-by-step explanation:
The slope-intercept form is y=mx+b, where m is the slope and b
is the y-intercept.
y=mx+b
y'all i just saw the most inappropriate thing.. please... for my eye's sake.. don't post inappropriate things. kids are on this app trying to get answers and learn. do this somewhere else
Answer:
Was it from goldenglare? Cuz that was disgusting
Answer:
i'm with u cause i saw something inappropriate earlier
Step-by-step explanation:
Find the slope or rate of change.
Need help hurry hurry
Answer:
slope=-12
Step-by-step explanation:
slope =y2-y1/x2-x1
5-17/-1-(-2)
-12/-1+2
-12/1
-12
I need the answer for this question
Suppose a runner travels 5200 feet in 5 minutes. At what rate does she run?
Answer:
1040 ft./min
Step-by-step explanation:
It's Right :)
enter the value of (-1 1/4) - (-2/3) + (-3.5)
Answer:
−67/12
Step-by-step explanation:
Answer:
Exact form- 49/12
Decimal Form- -4.083
Mix Number Form- -4 1/12
Step-by-step explanation:
which of the following is equivalent to the expression above
c) 2x^2y + 2xy^2
Explanation:
(x^2 y-3y^2+5xy^2)- (-x^2y+3xy^2-3y^2)
(x^2 y+5xy^2 -3y^2)- (-x^2y+3xy^2-3y^2)
x^2 y +5xy^2 -3y^2 + x^2y -3xy^2 + 3y^2
2x^2y + 2xy^2
The option C) 2x²y + 2xy² is equivalent to the given expression (x²y - 3y² + 5xy²) - (-x²y + 3xy² - 3y²).
Mathematically, an expression is an admixture of numbers, variables, operations, and functions that are conjoined according to peculiar rules to depict a mathematical calculation or association. It can be supposed to as a mathematical idiom or formula.
By combining numbers, variables, operators, and functions, mathematical expressions can define a broad lea of calculations and associations.
The given expression is (x²y - 3y² + 5xy²) - (-x²y + 3xy² - 3y²).
(x²y - 3y² + 5xy²) - (-x²y + 3xy² - 3y²)
= x²y - 3y² + 5xy² + x²y - 3xy² + 3y²
= 2x²y + 2xy².
Hence, option C) is correct in that 2x²y + 2xy² is equivalent to the given expression.
Learn more about Expression here:
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A simple random sample from a population with a normal distribution of 103 body temperatures has x = 98.30°F and s = 0.61°F. Construct a 95% confidence interval estimate of the standard deviation of body temperature of all healthy humans.
Answer:
(98.2884 ; 98.3116)
Step-by-step explanation:
Given :
x = 98.30°F and s = 0.61°F
Sample size. n = 103
Zcritical at 95% = 1.96
Using the confidence interval relation :
x ± margin of error
Margin of Error :
Zcritical * s/√n
1.96 * 0.61/√103 = 0.0116
Lower boundary = (98.30 - 0.0116) = 98.2884
Upper boundary = (98.30 + 0.0116) = 98.3116
(98.2884 ; 98.3116)
Art and his friends spent $62 at the movies. Admission tickets cost $12 apiece, and a bucket of popcorn costs $7. Which equation written in standard form represents the number of tickets bought, t, and the number of buckets of popcorn bought, p?
12p + 7t = 62
7p + 12t = 62
12p = 62 – 7t
7p = 62 – 12t
Answer this pls
DONT SEND A LINK
1/3 2/3 3/3
1/4 2/4 3/4 4/4
please help me ?.?.....................
At the tasty bakery, cupcakes cost fifty cents each.Doughnuts cost a dollar twenty five.How much more do two doughnuts cost than two cupcakes?
Answer:
$1.50
Step-by-step explanation:
The computation is shown below:
Given that
The cost of each cupcakes be 0.50 cents
And, the cost of doughnuts be $25
So for two doughnuts the cost would be 2.50
And, for two cupcakes, the cost would be 0.50 × 2 = 1
So, the more amount would be
= 2.50 - 1
= $1.50
Hence, the same would be considered and relevant too
what's the area of this shape
Answer:
L x W x H
Step-by-step explanation:
if my calculations are correct the length is 2 the width is 3 and the height is 3
Therefore the answer is (2 x 3) = 6 x3
So the answer is 18.
Hope it helps, if it is incorrect than i am extremely sorry, wish you the best of luck and have a great day/midday/evening. BYYEEEEEEE
What problems did Title IX address? Check all that apply.
lack of support for international students
limited opportunities for female athletes
limited resources in scientific courses of study
lack of scholarships and championships for women in sports
limited resources and facilities for women
Answer:
limited resources and facilities for women
lack of scholarships and championships for women
limited opportunities for female athletes
2,4,5
Statement two, four, and five are correct title IX law mandates institutions to obtain federal assistance to combat gender-based violence and harassment and respond to survivors' needs.
What is Title IX?Title IX is a potent instrument for fighting campus violence because it is a federal (national) legislation. To ensure that all students have equal access to education, the law mandates institutions to obtain federal assistance to combat gender-based violence and harassment and respond to survivors' needs.
As per the Title IX law:
Limited opportunities for female athletes.Lack of scholarships and championships for women in sports.Limited resources and facilities for women.Thus, statement two, four, and five are correct title IX law mandates institutions to obtain federal assistance to combat gender-based violence and harassment and respond to survivors' needs.
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PLSS HELP THE TEACHER IS ASKING FOR MY ANSWERS CUZ I WAS SUPPOSED TO DO IT AND I WASNT PREPARED PLSSS HELP IM NEXT AND CAN SOMEONE PLS TELL ME WHAT TO DRAW LIKE SHADE? A PIC OF EVERYTHING SHADED AND DRAWN WOULD BE RLLY NICE TYSM HAVE A GOOD DAY! BUT PLS HELPP
Answer:
write on each line....
equivalent, not equivalent, not equivalent
equivalent, not equivalent, equivalent
not equivalent, not equivalent, equivalent
Shade in each with what ever the fraction says to, for example 2/4 only shade in 2 boxes
The equation of the scatter plot trend line is y = -1700x + 32000 where y is the value of the car in dollars and x is the age of cars in years. Use the trend line equation to predict the value of a car after 7 years.
Answer:
20100
Step-by-step explanation:
According to the scenario, computation of the given data are as follows,
Given equation
y = -1700x + 32000
Where x is the age of car and y is the value of the car.
Then value after 7 years can be calculated as follows,
y = -1700 (7) + 32000
y = -11900 + 32000
y = 20,100
So, the value of car after 7 years will be 20100.
Divide and round to the nearest hundredths place.
0.25 ÷ 0.06 =
Answer:
4.17
Step-by-step explanation:
Answer:
14.17
Step-by-step explanation:
0.25 divided by 0.06 =4.166666666667
you take the first 3 numbers 4. 166 round the last number if it is a 5 or higher the number goes up one 4.166 rounds up to 4.17
how to do this question plz answer
Samuel is going to a carnival that has games and rides. Each game costs $2 and each ride costs $5. Samuel spent $60 altogether on 18 games and rides. Determine the number of games Samuel played and the number of rides Samuel went on. Plz no link or another answer
Answer:
Step-by-step explanation:
10 games, 8 rides
what is the sale price of $149 sneakers with 15% off?
Answer: $ 126.65
Step-by-step explanation:
149/100)*15 =
(149*15)/100 =
2235/100 = 22.35
15% of $149 is 22.35
so ,
real price-15% of real price= sale preice
$149-$22.35=$126.65
Answer:
$ 126.65
Step-by-step explanation:
$ 149 multiply 15 % which is 0.15
Which is $ 22.35
Take $ 149 - $22.35 = $126.65
Find the 11th term of the geometric sequence 6, -18, 54, ...
Answer:
354294
Step-by-step explanation:
Use the formula
[tex]a_{n} = a_{1} r^{n - 1}[/tex]
In your problem [tex]a_{1}[/tex] = 6 r = -3 n = 11
11th term = [tex]a_{11}[/tex] = [tex]6(-3)^{11 - 1} = 6(-3)^{10}[/tex] = 6(59049)
= 354294
f(x) = -x^(4)
Identify the function as a translation, compression, stretch, or reflection
Answer: don't know the answer but I hope this helps.
Step-by-step explanation:
what is it.........................
Answer:
x = 4.5
Step-by-step explanation:
Since the perimeters are equal , then the equation relating them is
2x + 3 + 2x - 3 + x = x + 3 + x + 3 + x + 3 , that is
5x = 3x + 9 ( subtract 3x from both sides )
2x = 9 ( divide both sides by 2 )
x = 4.5
Can you make a triangle with side lengths of 2 inches and 2 inches and 4 inches?
Answer: No you can not make any triangles with 2 inches, 2 inches and 4 inches. hoped this helped!
Step-by-step explanation:
Triangle ABC has AB = 10 √3cm, AC=6cm and has area 45cm^2
(i) Find the size of angle CAB.
(ii) Find the length of BC
Answer:
I) ∠CAB measures 60°.
II) BC measures approximately 15.23 cm.
*Please read notes.
Step-by-step explanation:
We are given ΔABC, where AB measures 10√3 cm, AC measures 6 cm, and the triangle has an area of 45 square cm.
And we want to find I) the measure of ∠CAB and II) the length of BC.
I) First, we should always draw a representative triangle so we can determine the sides and angles. This is shown below.
Note that ∠CAB (or simply ∠A) is the angle between the two sides. Thus, we can find the angle by using the alternative formula for the area of a triangle:
[tex]\displaystyle A=\frac{1}{2}ab\sin(C)[/tex]
Where a and b are two side lengths, and C is the angle between the two sides.
Substitute:
[tex]\displaystyle 45=\frac{1}{2}(10\sqrt{3})(6)\sin(A)[/tex]
Simplify:
[tex]\displaystyle 45=30\sqrt{3}\sin(A)[/tex]
So:
[tex]\displaystyle \sin(A)=\frac{45}{30\sqrt{3}}=\frac{3}{2\sqrt3}=\frac{\sqrt{3}}{2}[/tex]
Take the inverse sine of both sides. Use a calculator. Thus:
[tex]\displaystyle m\angle A=\sin^{-1}\left(\frac{\sqrt{3}}{2}\right)=60^\circ[/tex]
II) To find BC, we will use the Law of Cosines. We do not know whether or not ΔABC is a right triangle, so we cannot use right triangle trigonometry or special right triangles.
The law of cosines is:
[tex]\displaystyle c^2=a^2+b^2-2ab\cos(C)[/tex]
Where a and b are side lengths and C is the angle between the side lengths. c is the side length opposite to the angle.
BC is opposite to A. Substitute:
[tex](BC)^2=(10\sqrt{3})^2+(6)^2-2(10\sqrt{3})(6)\cos(60^\circ)[/tex]
Simplify:
[tex]\displaystyle BC^2=336-120\sqrt{3}\left(\frac{1}{2}\right)=336-60\sqrt{3}[/tex]
Take the square root of both sides:
[tex]\displaystyle BC=\sqrt{336-60\sqrt{3}}\approx 15.23[/tex]
BC measures about 15.23 cm.
Notes:
In this case, the inverse sine of √3/2 will yield two answers: 60° and 120°. This is an example of an ambiguous case. Both of these angles will work. However, BC will be different. If ∠A is 60°, then BC is about 15.23. However, if ∠A is 120°, then BC is about 20.97. Both will result in the triangle having an area of 45 square cm, as well as AB measuring 10√3 and AC measuring 6.