Answers
Related Questions
5000 people visit a website. 95% stay more than 2 minutes how many people visiting the website stay for more than 2 minutes
Answers
Answer:
4750
Step-by-step explanation:
Take 95, move the decimal. 0.95
then multiply 5000 by 0.95
Solve using elimination
-3x+9y=12
2x-8y=-16
Answers
Answer:
x=8 y=4
Step-by-step explanation:
eliminate x: make x of two equation equal to each other
2(-3x+9y=12) : -6x+18y=24 ___[1]
-3(2x-8y=-16) : -6x+24y=48 ___[2]
[2]-[1]= 6y=24
y=4substitute y to any equation;
2x-8y=-16
2x-8(4)= -16
2x= -16+32
2x= 16
x=8Answer:
x=14 and y=6
Step-by-step explanation:
-3x+9y=12.............(i)×2
2x-8y=-16..............(ii)×3
Multiplying equation (i) by 2 and equation (ii) by 3 and adding (i) and (ii)
-6x+18y=12
6x-24y=-48
-----------------
0-6y=-36
or, -6y=-36
So,y=6
From (i)
-3x+9y=12
or,-3x+9×6=12
or,-3x+54=12
or,-3x=12-54
or,-3x=-42
So,x=14
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The ordered pairs for two points are listed in the table. What is the equation, in slope-intercept form, of the line that contains these points?
A. y = -6x + 2
B. y = -6x - 2
C. y = -2x + 6
D. y = -2x - 6
Answers
The ordered pairs for two points are listed in the table. What is the equation, in slope-intercept form, of the line that contains these points?
A. y = -6x + 2
B. y = -6x - 2
C. y = -2x + 6
D. y = -2x - 6 ✓
A. y = -6x + 2
putting the value of x & y as 3 & -12-12 = -6 x 3 +2 -12 ≠ -16B. y = -6x - 2
putting the value of x as 3 & y as -12-12 = -6 x 3 -2-12 ≠ -20C. y = -2x + 6
putting the value of x as 3 & y as -12-12 = -2 x 3 + 6-12 ≠ 0D. y = -2x - 6✓
putting the value of x as 3 & y as &12-12 = -2 x 3 -6-12 = -6-6-12 = -6Find the measure of the numbered angle.
m∠7 =
Answers
Answer:
∠7 = 90°Step-by-step explanation:
∠7 = 180 - 90
∠7 = 90°
see image below
Answer:
90°
Step-by-step explanation:
angle 7 is supplementary to the angle next to itself which has a measurement of 90° and since the sum of two supplementary angle would be 180° we can say that m<7 = 90° as well
answer if you want to
Answers
Answer:
a
Step-by-step explanation:
It says m=50 minus the three that fell out. That's m=50-3
plz help will give brainliest
Given f(x) and g(x) = f(x + k), use the graph to determine the value of k.
Group of answer choices
6
−3
−6
3
Answers
Answer:
6 because it goes up 6 and ya
Find the pythagorean triplets for the following values of 'n'. N=1 N=2 N=3 N=4
Answers
The Pythagorean triplets for the given values of 'n' are as follows:
For n = 1: (3, 4, 5)
For n = 2: (5, 12, 13)
For n = 3: (7, 24, 25)
For n = 4: (9, 40,41)
To find the Pythagorean triplets for different values of 'n', we can use the formula that generates Pythagorean triples:
For any two positive integers 'm' and 'n' such that m > n, the Pythagorean triplets can be obtained as follows:
a = m^2 - n^2
b = 2mn
c = m^2 + n^2
where 'a', 'b', and 'c' represent the sides of a right-angled triangle.
Let's calculate the Pythagorean triplets for each given value of 'n':
For n = 1:
m = 2
a = m^2 - n^2 = 2^2 - 1^2 = 4 - 1 = 3
b = 2mn = 2 × 2 × 1 = 4
c = m^2 + n^2 = 2^2 + 1^2 = 4 + 1 = 5
Therefore, the Pythagorean triplets for n = 1 are (3, 4, 5).
For n = 2:
m = 3
a = m^2 - n^2 = 3^2 - 2^2 = 9 - 4 = 5
b = 2mn = 2 × 3 × 2 = 12
c = m^2 + n^2 = 3^2 + 2^2 = 9 + 4 = 13
Therefore, the Pythagorean triplets for n = 2 are (5, 12, 13).
For n = 3:
m = 4
a = m^2 - n^2 = 4^2 - 3^2 = 16 - 9 = 7
b = 2mn = 2 × 4 × 3 = 24
c = m^2 + n^2 = 4^2 + 3^2 = 16 + 9
Therefore, the Pythagorean triplets for n = 3 are (7, 24, 25).
For n = 4:
m = 5
a = m^2 - n^2 = 5^2 - 4^2 = 25 - 16 = 9
b = 2mn = 2 × 5 × 4 = 40
c = m^2 + n^2 = 5^2 + 4^2 = 25 + 16 = 41
Therefore, the Pythagorean triplets for n = 4 are (9, 40, 41).
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During a long weekend, Devon paid a total of x dollars for a rental car so he could visit his family. He rented the car for 7 days at a rate of $54 per day. There was an additional charge of $0.35 per mile after the first 100 miles driven.
a. Write an algebraic expression to represent the amount Devon paid for additional mileage only.
b. How much did Devon pay for additional mileage if he paid a total of $421 for the car rental?
Answers
Answer:
a. Letting m represent the number of additional miles driven, we have .35m.
b. Devon paid $43 for additional mileage.
Step-by-step explanation:
For part b: $421 - ($54 × 7)
= $421 - $378 = $43
The algebraic expression to represent the amount Devon paid for additional mileage only is 0.35m and Devon pays for additional mileage if he paid a total of $421 for the rental car is $43.
What is linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
It is given that:
During a long weekend, Devon paid a total of x dollars for a rental car so he could visit his family. He rented the car for 7 days at a rate of $54 per day.
For part (a):
Write an algebraic expression to represent the amount Devon paid for additional mileage only.
The amount Devon paid for additional mileage only = 0.35m
For part (b):
Devon pays for additional mileage if he paid a total of $421 for the car rental is:
= $421 - ($54 × 7)
= $43
Thus, the algebraic expression to represent the amount Devon paid for additional mileage only is 0.35m and Devon pays for additional mileage if he paid a total of $421 for the rental car is $43.
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The lifting force, F, exerted on an airplane wing varies jointly as the area, A, of the wing's surface and the square of the plane's velocity, v. The lift of a wing with an area of 130 square feet is 5,200 pounds when the plane is going at 150 miles per hour. Find the lifting force if the speed is 220 miles per hour. Round your answer to the nearest integer if necessary.
Answers
The lifting force if the speed is 220 miles per hour is F' = 708.53 N.
The force of light, or simply light, is the sum of all forces on an object that cause the object to move perpendicular to the direction of flow.
The most common type of lift is the wing lift. But there are many other common uses, such as propellers on airplanes and ships, rotors on helicopters, fan blades, sails on sailboats, and wind turbines.
We have,
The lifting force, F, exerted on an airplane wing varies jointly as the area, A, of the wing's surface and the square of the plane's velocity, v. It, means that,
\(F=kAv^{2}\)
Where
k is constant
If, A = 190 Ft², v = 220 mph, F = 950 pounds
Now, find k first from the above data. So,
\(k=\frac{F}{Av^{2} }\)
⇒ \(k=\frac{950}{190* (220)^2}\)
⇒ k = 0.0001033
It is required to find the lifting force on the wing if the plane slows down to 190 miles per hour.
Let F' is a new force. So,
F' = 0.0001033 × 190 × (190)²
⇒ F' = 708.53 pounds.
So, the lifting force is 708.53 pounds if the plane slows down to 190 miles per hour.
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For
the function pictured below. Fill in the following values.
a.Domain:
b. Range:
e increasing Interval:
d. Decreasing Interval:
e. Positive Interval(s]
f. Negative Interval (s:
g.Max:
h.min. i.Rate of Change (Slope) [2. 4]:
Answers
Answer:
1. (-∞, ∞), [-4, ∞), (2, ∞), (-∞, 2), (-∞, 0) ∪ (4, ∞), (0, 4), DNE, -4, 2
2. y = -|x -4| -2
Step-by-step explanation:
1.
a. the domain is the horizontal extent, (-∞, ∞)
b. the range is the vertical extent, [-4, ∞)
c. the function is increasing where it goes up to the right, (2, ∞)
d. the function is decreasing where it goes down to the right, (-∞, 2)
e. the function is positive where it is above the x-axis, (-∞, 0) ∪ (4, ∞)
f. the function is negative where it is below the x-axis, (0, 4)
g. the function extends to ∞, so has no maximum value
h. the vertex is the low point, or minimum value, -4
i. the function increases from -4 to 0 on the interval [2, 4] so has an average rate of change of (0 -(-4))/(4 -2) = 4/2 = 2
__
2. Reflection across the x-axis negates every y-value. Multiply the given function by -1:
y = -|x-4| -2
Rewrite the expression c + 0.25c using fractions instead of decimal numbers.
Answers
Answer:
\(\huge\boxed{\frac{5c}{4},\ or\ c+\frac{1}{4}c,\ or\ c+\frac{c}{4}}\)
Step-by-step explanation:
The decimal 0.25 can simply be converted into a fraction by putting it over 100.
0.25 = \(\frac{25}{100}\)
Then, simply divide both the numerator and denominator by 25 to get
\(\frac{25/25}{100/25}\), or \(\frac{1}{4}\)
Hope it helps :)
Due today!!!!!!! Help!!!!!!
Select all of the quadratic expressions in vertex form.
Group of answer choices
(x−2)^2+1
x2−4
x(x+1)
(x+3)^2
(x−4)^2+6
Answers
1, 4, & 5 are quadratic expressions in vertex form
in
2. Susan is divorced and has one child that she pays for. She will file her taxes as a head of
household for federal income tax and single for state tax purposes. Susan's gross income is
$48,500. Susan lives in Louisiana
Answers
Answer:
what si the questions
Step-by-step explanation:
Write the equation of the line in fully simplified slope-intercept form.
Answers
Answer:
y = -6x - 8
Step-by-step explanation:
Two points on this line are (-3, 10) and (0, -8). Moving from the first to the second, we see that x increases by 3 and y decreases by 18. Thus, the rise and run are -18 and 3 respectively, so that the slope of this line is m = -6.
Adapt the slope-intercept form y = mx + b to this particular situation. Recognize that the given (0, -8) is the y-intercept and that the slope, m, is -6.
The equation of this line is thus
y = -6x - 8
How do you simplify this question
Answers
Answer:
38/5m
Step-by-step explanation:
Solution
= 2/5m - 4/5- 3/5
take 5 common in denominators
= 2-4+3/5
38/5m
Nancy earns $8 a week for her house chores. How much money does she earn in 2 and 3/4 weeks? :)
Answers
The amount of money she earn would be; 22 dollar
Since the unitary method is a technique by which we find the value of a single unit from the value of multiple devices and the value of more than one unit from the value of a single unit.
Given that Nancy earns $8 a week for her house chores.
We have that;
1 week = 8
2 and 3/4 week= 11/4
= 11/4 x 8
= 11 x 2
= 22 dollar
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I need it soon thanks
Answers
= 3 × 4
= 3 × 2²
x = 1
2.Cross multiplication= 3 × 15 = 5x
= 45 /5 = x
= 9 = x
3. 14, 35, 424. 7 , 35. 572, 527, 725, 7526. a ÷ 2 = a/27. a.2 = 2a8. a² = a . a9. a + a + a = 3a10. 0a = 0Answer:
Step-by-step explanation:
1. 4
2. 9
3. 7 ,14 , 21 , 28 ,35 , 42 , 49
4. 7 , 3
5. 527 , 752 , 572 , 725
6. 6 = d ( a / 2 )
7 = e ( 2a )
8 = a ( a * a )
9 = b ( 3a )
10 = c ( 0 )
2 Points
The value of -16 is not-4 because
O A. 42.-16
OB. 1624
O C. (-4)2 + -16
O D. (-16)24
Answers
A rock concert producer has scheduled an outdoor concert. The producer estimates the attendance will depend on the weather according to the following data.
Answers
to find the expected attendance, multiply the attendance by probability then add the products
6000 * 0.1 = 600
25000 * 0.2 = 5000
15000 * 0.2 = 3000
55000 * 0.5 = 27500
27500 + 3000 + 5000 + 600 = 36100
36100 * 15 = 541500 - 300000 = 241500 - 55000 = 186500
Which shows the Distributive Property?
07 x 1 = 7
07 x 3 = 3 X 7
07 x 0 = 0
O (7 X 3) x 6 = 7 x (3 X 6)
07(3 + 6) = 7 * 3+ 7 x 6
> Next Question
Answers
Answer:
(7 X 3) x 6 = 7 x (3 X 6)
Step-by-step explanation:
The value which shows the Distributive Property is 07(3 + 6) = 7 * 3+ 7 x 6, the correct option is D.
What is distributive property?The distributive property states that an expression of the form A(B + C) can be solved by a multiplication over addition operation that is
A(B + C) = AB + AC
This property is known by distributive law and applies to subtraction also.
We are given that;
The function
Now,
The distributive property states that a(b + c) = ab + ac for any numbers a, b, and c. This means that multiplying a sum by a number is the same as multiplying each addend by the number and then adding the products.
7(3 + 6) = 7 x 3 + 7 x 6
Therefore, by distributive property the answer will be 7(3 + 6) = 7 x 3 + 7 x 6.
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the statistic x¯ is used as an estimator for which of the following?
Answers
As a point estimator for, we utilise x-bar (sample mean) (mu, population mean)
What is mean or average?The average value in mathematics is the middle number, which is calculated by dividing the total number of numbers by the sum of all the numbers. A set of data's average is calculated by adding up all the values and dividing the result by the total number of values.
We use the x-bar (sample mean) as a point estimator for (mu, population mean). As long as the sample is random, this estimator's impartial long-run distribution is centred at (mu).
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Complete question -
A T.V was bought for N1,250 and sold for N1,000. Find the percentage loss?
Answers
Answer:
20%
Step-by-step explanation:
1000/1250=0.8
1000 is 80% of the original price
therefore the percentage loss is 20%
Answer:
20
Step-by-step explanation:
1250 divided by 100 is 12.5
12.5*80 equals 1000 so 100-80 equals 20%
i could really use an explanation of this problem please and thank you
Answers
Answer:
the answer for this is (2,2)
-7k + 6k2 = 33
solve using the quadratic formula
Answers
Answer:\(6k^2-7k=33\\-33 -33\\6k^2-7k-33=0\\a=6\\b=-7\\c=-33\\\\k=-(-7)+/-\sqrt{-7^2-4(6)(-33)} /2(6)\\\\k=\frac{7+/-\sqrt{841} }{12} \\k=3,-11/6\)
6
It costs 35p per minute to hire a powerful computer. How much will it cost to hire the
computer from 07:40 to 08:15?
Answers
Answer:
1225p
Step-by-step explanation:
1 minute = 35p
07:40 to 08:15 : 35 minute
=> 35 minute *35p=1225p
what is the missing variable
Answers
3x=54
54/3
Answer - 18
Answer: x= 18
Step-by-step explanation: these are corresponding angles which means they are equal.
(4x-7) = (7x-61)
-7 = 3x -61
54 = 3x
18 = x
when a number is divided by 37, the quotient is 57, and the remainder is 29. what is the number
Answers
Answer:
Step-by-step explanation:
Hello, it means that the number is
57 * 37 + 29 = 2138
Thank you
if z3=x3 y2, dxdt=3, dydt=2, and z>0, find dzdt at (x,y)=(4,0).
Answers
Answer :- The value of dzdt at (x, y) = (4, 0) is 0
To find dzdt at (x, y) = (4, 0) given z^3 = x^3 y^2, dxdt = 3, and dydt = 2, follow these steps:
1. Write down the given equation: z^3 = x^3 y^2
2. Differentiate both sides with respect to t (using the chain rule and product rule): 3z^2(dzdt) = 3x^2(dxdt) * y^2 + x^3 * 2y(dydt)
3. Plug in the given values dxdt = 3, dydt = 2, and (x, y) = (4, 0): 3z^2(dzdt) = 3(4^2)(3) * 0^2 + 4^3 * 2(0)(2)
4. Since y = 0, the right side of the equation becomes 0: 3z^2(dzdt) = 0
5. However, we are given z > 0, which means z is not equal to 0. Thus, we can divide both sides by 3z^2: dzdt = 0
So, the value of dzdt at (x, y) = (4, 0) is 0.
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Classify the following scenarios as one-sided or two-sided tests.
one-sided hypothesis test
test whether incoming students at a business school receive better grades in their classes if they've taken an on-line program covering basic material
test whether there is a difference between men's and women's usage of a mobile fitness app
two-sided hypothesis test
test whether the number of listeners of a streaming music service has changed after they changed the user interface
test whether users of a commercial website are less likely to make a purchase if they are required to set up a user account on the site
Answers
One-sided hypothesis test: Incoming students' grades based on the online program.
Two-sided hypothesis test: Men's and women's usage of mobile fitness app, listeners of a streaming music service based on user intappserface change, and users of a commercial website making a purchase based on user account requirement.
We have,
Classifying the scenarios as one-sided or two-sided tests:
One-sided hypothesis test:
Test whether incoming students at a business school receive better grades in their classes if they've taken an online program covering basic material.
Two-sided hypothesis test:
Test whether there is a difference between men's and women's usage of a mobile fitness app.
Two-sided hypothesis test:
Test whether the number of listeners of a streaming music service has changed after they changed the user interface.
One-sided hypothesis test:
Test whether users of a commercial website are less likely to make a purchase if they are required to set up a user account on the site.
Thus,
One-sided hypothesis test: Incoming students' grades based on the online program.
Two-sided hypothesis test: Men's and women's usage of mobile fitness app, listeners of a streaming music service based on user intappserface change, and users of a commercial website making a purchase based on user account requirement.
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In a survey of 1,700 people who owned a certain type of car, 765 said they would buy that type of car again. What percent of the people surveyed were satisfied with the car?
Answers
Answer:
45%
Step-by-step explanation:
765 ÷ 1700 = 0.45 or 45%
Answer:
45%
Step-by-step explanation: