Answer:
26.2
X = 22.27/(1 - 0.15)
X = 22.27/0.85
X = 26.2
whats the mean and median of 13, 1, 17, 6, 2, 111, 3?
Answer:
111
Step-by-step explanation:
Having trouble with this, pretty sure the answers i have in there are wrong, please help. especially need help with the last question , thank you
The year in which the two quantities will be equal is 2133.
What is a 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.
Here we have the following data.
y=0.221x-368.264 For men
y=0.168x-255.196 for women
So when we will equate these two equation we will get the year in which two quantities will be same.
0.221x-368.264=0.168x-255.196
0.221x-0.168x=368.264-255.196
0.053x = 1123.068
x= 2133 year
Hence the year in which the two quantities will be equal is 2133.
To know more about equations follow
https://brainly.com/question/2972832
#SPJ1
i need help with 7th grade math please 30 points need help ASAP
Answer:
Area = 657 ft^2
Step-by-step explanation:
Heron's Formula: [tex]S=\frac{a+b+c}{2}[/tex] ,
Area = [tex]\sqrt{s(s-a)(s-b)(s-c)}[/tex]
[tex]s=\frac{20+21+29}{2}=\frac{70}{2} =45 ft[/tex]
[tex]Area=\sqrt{45(45-20)(45-21)(45-29)}\\\\=\sqrt{45(25)(24)(16)}\\\\=\sqrt{432000}[/tex]
= 657.267069
Area = 657 ft^2
Answer:
210 ft²
Step-by-step explanation:
Take the base and height of the triangle.
Base = 21 ft.Height = 20 ft.Solving for area :
A = 1/2 x base x heightA = 1/2 x 21 x 20A = 10 x 21A = 210 ft²PLEASE I NEED THIS
determine the value of θ to the nearest degree
csc θ = 1.2711
the answer in my textbook is 52 degrees, but i've no idea how they got that.
p.s i need this asap - will give brainliest!!! thank u!!
Answer:
See below
Step-by-step explanation:
[tex]\csc\theta=1.2711\\\\\frac{1}{\csc\theta}=\frac{1}{1.2711}\\ \\\sin\theta=\frac{1}{1.2711}\\ \\\theta=\sin^{-1}(\frac{1}{1.2711})\\\\\theta\approx51.88^\circ\approx52^\circ[/tex]
Remember the identity [tex]\csc\theta=\frac{1}{\sin\theta}[/tex], so [tex]\sin\theta=\frac{1}{\csc\theta}[/tex] and it makes the problem easier. Just remember to take the inverse sine (let me know if you are not sure what that means).
The value of the θ in csc θ = 1.2711 is 51.88°.
What is trigonometric ratio?A trigonometric ratio is a ratio of the length of sides of a right-angle triangle. It relates the ratio of sides to the respective angle. The most common trigonometric ratios are sine, cosine, and tangent.
Given csc θ = 1.2711, we need to find the value of θ,
So, csc θ = 1.2711
θ = csc⁻¹(1.2711)
θ = 51.88°
Hence, the value of the θ in csc θ = 1.2711 is 51.88°.
Learn more about trigonometric ratio click;
https://brainly.com/question/25122825
#SPJ2
What is the value of the expression
1/2 divided by 6
Answer:
here is 1/2 divided displayed mathematically
1/2 ÷ 6
1= numerator
2= denominator
3= whole number
to make it fraction from the answer you keep the
numerator by the whole number to make a new
denominator
___1___ = _1_
2×6 12
thus the answer to 1/2 divided by 6 on fraction form is
1/12 is the answer
NEED HELP ASAP!!!!!!
You would like to estimate the proportion of all students in your school who have traveled to a foreign country. You poll a random sample of students and get a sample proportion of 0.18. Explain why the standard error of the sampling distribution of the sample proportion helps you gauge how close this sample proportion is to the unknown population proportion.
Answer:
I do not know. sorry I couldn't help
Can anyone please solve this for me right now?
The population of the country by an exponential function which is used to describe the population of a country in millions t years after the 2003 is, 645.4.
What is an exponential function?Exponential function is the function in which the function growth or decay with the power of the independent variable. The curve of the exponential function depends on the value of its variable.
The population model, which describes the population of a country in millions t years after the 2003 is,
[tex]A=645.4 e^{0.001t}[/tex]
For the year 2003 the value of t will be 0 as no year is passed after 20036. Thus,
[tex]A=645.4 e^{0.001\times0}\\A=645.4 e^{0}\\A=645.4(1)\\A=645.4[/tex]
Thus, the population of the country by an exponential function which is used to describe the population of a country in millions t years after the 2003 is, 645.4.
Learn more about the exponential function here;
https://brainly.com/question/15602982
#SPJ1
PLEASE HELP ILL MARK BRAINLIEST kellys farm has 8 chickens for every 3 cows and 2 pigs for every 5 cows. if kellys farm has 30 pigs how many chickens are on the farm
Answer:
Step-by-step explanation:
A PACK OF TOILET PAPER WAS ORIGINALLY $4.50 , IT COST $6.75. DID THE PRICE INCREASE OR DECREASE?
5
5.2
4
Find the area of the parallelogram.
square units
Answer:
20 square units
Step-by-step explanation:
Area of a parallelogram is calculated with the following formula:
b*h (b: base, h: height)
5*4 = 20 square units
Gertrude climbs a 8-meter tower to ride a straight water slide. The
slide is 33 meters. After landing in the splash pool, how far does she
walk to get back to the base of the tower? Provide an answer accurate
to the nearest tenth.
33 m
8 m
walk
label required
Answer:
Hello,
11.2 is your answer!
Let's Beginnn.... READ EXPLANATION!!! ITS ALWAYS HELPS... TRUST MEEEEEEEEEEE!!!!
Step-by-step explanation:
Okay so this is clearly a pythagorean theorem question....
Imagine a ladder on a wall..... its kinda like a triangle.....
with that said... lets begin the math... A^2 + B^2 = C^2
The problem itself gives us c and a.
We have to solve for b.
33^2 - 8^2= b^2
1089 - 64 = 1025 = b^2
notice that we found b^2 but we are looking for b
so we have to take the square root....
√1025= 11.18
it says round to nearest tenth.... sooooo
11.2 is your answer!
Solve the system of equations graphically. Then classify
the system as consistent or inconsistent and the
equations as dependent or independent.
5x - y = 7
5x+6y= -7
Answer:
They are consistent and independent
Step-by-step explanation:
Consistency
If two lines have an intersection point, they are said to be consistent. For example, two parallel lines do not have an intersection and therefore they are inconsistent.
In the problem, the two lines intersect at (1, -2) so they have a unique solution and therefore consistent.
Dependency
Two lines are said to be independent if one of them cannot be written as an integer multiple of the other. Or, in other words, if the slope-intercept form of both equations have different slope and y intercept
Note: slope-intercept form of an equation is y = mx + c where m is the slope and c the y intercept
Line 1: 5x - y = 7 can be written as y = 5x - 7 which has slope +5 and y intercept -7
Line2 : 5x + 6y = -7 can be re-written as y = (-5/6)x - (7/6). This has slope -5/6 and y intercept -7/6
Since slope and intercepts of both lines are different they form a system of independent equations
The price of a tv was decreased by 20% to £1440. What was the price before the decrease?
Answer:
€7200
Step-by-step explanation:
20%---------1440
100%----------y
y= 100×1440/20
y= 144000/20
y= €7200
price before decrease= €7200
whats mean and median of 11, 18, 5, 20, 8, 124, 17?
Answer:
The mean would be 29 and the median would be 17
Step-by-step explanation:
Hope this helps! :)
The class was divided into 4 teams. Each team had 5 players. The
remaining class members- Ty, Keesha, and Sam- served as score keepers.
How many students were in the class?
EASY QUESTIONS EASY POINTS!!
Answer:
23 players.
Step-by-step explanation:
5 x 4 + 3 = 23
What are practical situations of geometric series.
Answer:
One of the practical situation of geometric series is : A ball bouncing is an example of a finite geometric sequence. Each time the ball bounces it’s height gets cut down by half. If the ball’s first height is 4 feet, the next time it bounces it’s highest bounce will be at 2 feet, then 1, then 6 inches and so on, until the ball stops bouncing
Answer:
Geometric series are seen in practical situations, most notably in those involving geometric growth or decay. If a series of numbers are formed by percentages, then it can result in a geometric sequence. Ex. compound interest (see below).
Step-by-step explanation:
A geometric series is the result of adding the terms of a geometric sequence. These sequences have a common ratio, r, which is used to find missing terms. The common ratio is found with [tex]r=\frac{a_n}{a_{n-1}}[/tex]. For example, [tex]a_1(r)=a_2, \mbox{ and } a_2(r)=a_3... \mbox{ etc.}[/tex]
Geometric sequences can be used to model practical situations, and such situation could involve geometric growth or decay.
A geometric sequence can be used to model compound interest. An example of this is [tex]A = P (1 + \frac{r}{100})^n[/tex] where the common ratio, r, of the series is equal to 1 + r/100 in the compound interest formula above.
Consider figures 1 through 4 on the coordinate plane.
The true statement about the coordinate plane is C. Figures 1 and 2 are not congruent because figure 1 cannot be mapped into figure 2.
What is a coordinate plane?A coordinate plane simply means a two dimensional plane that's is formed by the intersection of a vertical line.
In this case, the true statement about the coordinate plane is that Figures 1 and 2 are not congruent because figure 1 cannot be mapped into figure 2 using a sequence of rigid transformation.
Learn more about coordinate plane on:
https://brainly.com/question/2644832
#SPJ1
help me please i need it now
Answer:
1.75
Explanation:
Take two points: (0, -3), (4,4)
[tex]\sf rate \ of \ change: \dfrac{y_2- y_1}{x_2 - x_1} = \dfrac{rise}{run}[/tex]
Here rate of change:
[tex]\sf \rightarrow \dfrac{4-(-3)}{4-0}[/tex] (insert values)
[tex]\sf \rightarrow \dfrac{7}{4}[/tex] (in fraction)
[tex]\sf \rightarrow 1.75[/tex] (in decimals)
Answer:
1.75
Step-by-step explanation:
Rate of change = slope of the line
Taking two points (4,4) and (0, -3) :
slope (m) = 4 + 3 / 4 - 0slope (m) = 7/4slope (m) = 1.75Work out 2/15 of 5 Give your answer as a fraction in its simplest form.
Answer:
2/3
Step-by-step explanation:
2/15 of 5
Of means multiply
2/15 * 5
Multiply the numerators
2*5 = 10
Put over the denominator
10/15
We can divide the top and bottom by 5
10/5 =2
15/5 =3
2/3
Answer:
Step-by-step explanation:
The table describes a probability distribution for a certain
event. Find the mean, u, for the probability distribution.
X
P(x)
10
0.534
20
0.193
30
0.140
40
0.085
50
0.048
This value is exact.
===============================================================
Explanation:
Use your favorite spreadsheet app to form a third column of values. This new column will be the result of multiplying the original two columns.
For instance, we have x*P(x) = 10*0.534 = 5.34 as the first entry of the new column. The other rows are treated in a similar manner. Refer to the screenshot below..
After getting that third column set up, add up those results. The sum is the expected value (aka the mean mu, which is the symbol [tex]\mu[/tex])
5.34 + 3.86 + 4.2 + 3.4 + 2.4 = 19.2
Find the missing length.
✓ [?]
?
C=
C
2
11
Pythagorean Theorem: a2 + b2 = c2
Enter
Answer:
11.18 is the missing length
Joe thinks the area to be pantries on wall 2is 84 square feet.
Please put a picture next time :)
) Evaluate
42+(9 divided by 3 x 2) - 4
Answer:
44
Step-by-step explanation:
Parenthesis
Exponents
Multiplication/Division (left to right)
Addition/Subtraction (left to right)
42 + (9 ÷ 3 x 2) - 4 <== divide first (left to right)
42 + ((9 ÷ 3) x 2) - 4
42 + (3 x 2) - 4 <== multiply
42 + 6 - 4 <== add
48 - 4 <== subtract
44
Final answer: 44
Hope this helps!
If you reflect point B(- 2, 5) over the y- axis, what is the reflected point ?
Answer:
(2,5)
Step-by-step explanation:
Since it is reflected across the y-axis only the x point will change and vise-versa
Which is true about the line whose equation is y + 3 = 0?
The slope is 3.
The y-intercept is 3.
The slope is zero.
The value of x always equals the value of y.
Answer:
The slope is 0
Step-by-step explanation:
Solve the equation for y
y+3=0
y = -3
The slope intercept form is
y = mx+b
where m is the slope and b is the y intercept
y = 0x-3
The slope is 0 and the y intercept is -3
Answer: The Slope Is 3
Step-by-step explanation:
You are missing the x after the 3.
considering the linear equation y=mx+b, the coefficient of x is ALWAYS the slope (rate of change)
NO LINKS!! Write the equation of the trigonometric graph. Try fractional values or π for the box next to x.
Answer:
y = 1·cos(π/3·x) +3
Step-by-step explanation:
The general form of the trig equation will be ...
y = (amplitude)·cos(2π/(period)·x) +(midline shift)
__
midlineYou have already determined correctly that the midline shift is 3 units.
amplitudeThe amplitude is the difference between the peak value (4) and the midline, so is ...
amplitude = peak - midline = 4 -3 = 1
periodThe period is the horizontal distance between corresponding parts of the graph. Here, the distance between peak values is 6 units, so the period is 6. That means the argument of the cosine function is ...
(2π)/6·x = (π/3)·x
__
The function you are looking for is ...
[tex]y=1\cdot\cos\left(\dfrac{\pi}{3}x\right)+3[/tex]
Answer:
[tex]y=\boxed{1}\: \cos(\:\boxed{1}\:x)+\boxed{3}[/tex]
Step-by-step explanation:
General form of cos periodic function:
y = A cos(B(x + C)) + D
where:
A = Amplitude (height from the center line to the peak or trough)2π/B = Period (horizontal distance between one peak and the next)C = (horizontal) Phase ShiftD = Vertical ShiftParent function → y = cos(x)
The parent function y = cos(x) has a center line at y = 0.
The center line of the new function is at y = 3, so the parent function has been shifted vertically by 3 units. Therefore, D = 3:
⇒ y = A cos(B(x + C)) + 3
The amplitude of the parent function is 1.
The amplitude of the new function is also 1. Therefore, A = 1:
⇒ y = 1 cos(B(x + C)) + 3
The parent function has a peak at x = 0.
The new function has a peak at x = 0. Therefore there has been no horizontal phase shift, so C = 0:
⇒ y = 1 cos(B(x + 0)) + 3
⇒ y = 1 cos(Bx) + 3
Finally, from inspection of the curve, the period appears to be 2π (6.28)
2π/B = 2π so B = 1
⇒ y = 1 cos(1x) + 3
Please see attached graph for reference.
The parent function is shown in blue.The dotted line is shown in grey.The new function is shown in black.help me help me help me help me help me help me help me help me
Answer:
Hope it help
Step-by-step explanation:
1. B
2. A
3. C
4. C
5. D
Find the area of this semi-circle with diameter,
d
= 11cm.
Give your answer rounded to 2 DP.
please help me with math i’d really appreciate it thank you
Answer:
Step-by-step explanation:
[tex]f(x) = \dfrac{2}{3}x-4\\[/tex]
When x = 0 ; f(x) = 0-4 = -4
When x = 3 ;
[tex]\sf f(3) =\dfrac{2}{3}*3-4\\\\ = 2-4\\\\ f(3) = -2[/tex]
When x = 6,
[tex]\sf f(6) = \dfrac{2}{3}*6-4\\\\ f(6) =2*2-4 = 4-4\\\\ f(6)= 0[/tex]
When x = -6;
[tex]\sf f(-6) =\dfrac{2}{3}*(-6)-4\\\\[/tex]
= 2*(-2)-4
= -4 - 4
f(-6) = -8
Tanisha's website had x visitors on Friday. On Saturday, it had 500 more visitors than it did on Friday. The total
number of visitors on Friday and
Saturday was twice the number on Sunday. In terms of x, how many visitors did Tanisha's website have on
Sunday?
If the number of visitors on Friday, Saturday, and Sunday is x, x + 500, and x + 250. Then the total number of visitors will be 3x + 750.
What is Algebra?Algebra is the study of mathematical symbols, and the rule is the manipulation of those symbols.
Tanisha's website had x visitors on Friday.
On Saturday, it had 500 more visitors than it did on Friday. That is x + 500
The total number of visitors on Friday and Saturday was twice the number on Sunday. That is (2x + 500)/2
Then the total number of the visitors will be
→ Friday + Saturday + Sunday
Then we have
[tex]\rm \rightarrow x + x + 500 + \dfrac{2x + 500}{2}\\\\\rightarrow 2x + 500 + x + 250\\\\\rightarrow 3x + 750[/tex]
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ1