Your answer will be 620!
Answer:
the number is 620.
Step-by-step explanation:
in other words the question is 55% of what number is 341?
let the number be Y.
[tex]\frac{55}{100}*Y=341[/tex]
[tex]\frac{55Y}{100}=341[/tex]
[tex]55Y=341*100[/tex]
[tex]55Y=34100[/tex]
[tex]Y=\frac{34100}{55}[/tex]
Y=620
Answer this correctly
Answer:
1385.622
Step-by-step explanation:
A=πr2=π·212≈1385.622
hope this helped
What is the surface area of a triangular prism
Answer:
608 (D)
Step-by-step explanation:
To find the area of the prism, just add all the areas in the nets together.
The rectangle in the middle has an area of 192 because it is a 12x16 triangle so you multiply the sides.
Both the rectangles on the top and bottom have an area of 160 because they are both a 10x16. The total of the 2 rectangles would be 320 because 160+160=320.
The triangles on the right each have an area of 48 because the Base=12 and the Height= 8. The formula for finding the area of a triangle is 1/2(BH). 1/2(12*8)= 1/2(96)= 48. There are 2 triangles like this so the totla area of both triangles is 96.
To find the surface area, you just add them all up. 96+320+192= 608
Find the volume of a cone with the radius of radius of 80 and height of 21
Answer:
140672
Step-by-step explanation:
formula for cone volume=pi*r^2*h*1/3
80^2*3.14*21=422016
422016*1/3
=140672
What is the volume of the shape?
Volume of the bottom rectangle:
12 x 4.5 x 5.5 = 297 cubic cm
Volume of triangle:
1/2 x 12 x 5 = 30 x 4.5 = 135 cubic cm
Total volume = 297 + 135 = 432 cubic cm
match each linear equation with the name of its form
Answer:
2x - 5y = 9 // standard form
y + 6 = -3 (x-1) // point slope form
y = -x + 8 // slope intercept form
Step-by-step explanation:
275 feet in 10 seconds =
Ocean fishing for billfish is very popular in the Cozumel region of Mexico. In the Cozumel region about 41% of strikes (while trolling) resulted in a catch. Suppose that on a given day a fleet of fishing boats got a total of 29 strikes. Find the following probabilities. a) 12 or fewer fish were caught.b) 5 or more fish were caught.c) between 5 and 12 fish were caught.
Answer:
a) 59.10% probability that 12 or fewer fish were caught.
b) 99.74% probability that 5 or more fish were caught.
c) 58.84% probability that between 5 and 12 fish were caught.
Step-by-step explanation:
I am going to use the normal approximation to the binomial to solve this question.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
Can be approximated to a normal distribution, using the expected value and the standard deviation.
The expected value of the binomial distribution is:
[tex]E(X) = np[/tex]
The standard deviation of the binomial distribution is:
[tex]\sqrt{V(X)} = \sqrt{np(1-p)}[/tex]
Normal probability distribution
Problems of normally distributed samples can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.
When we are approximating a binomial distribution to a normal one, we have that [tex]\mu = E(X)[/tex], [tex]\sigma = \sqrt{V(X)}[/tex].
In this problem, we have that:
[tex]n = 29, p = 0.41[/tex]
So
[tex]\mu = E(X) = np = 29*0.41 = 11.89[/tex]
[tex]\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = 2.6486[/tex]
Find the following probabilities.
a) 12 or fewer fish were caught.
Using continuity correction, this is [tex]P(X \leq 12 + 0.5) = P(X \leq 12.5)[/tex], which is the pvalue of Z when X = 12.5. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{12.5 - 11.89}{2.6486}[/tex]
[tex]Z = 0.23[/tex]
[tex]Z = 0.23[/tex] has a pvalue of 0.5910
59.10% probability that 12 or fewer fish were caught.
b) 5 or more fish were caught.
Using continuity correction, this is [tex]P(X \geq 5 - 0.5) = P(X \geq 4.5)[/tex], which is 1 subtracted by the pvalue of Z when X = 4.5. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{4.5 - 11.89}{2.6486}[/tex]
[tex]Z = -2.79[/tex]
[tex]Z = -2.79[/tex] has a pvalue of 0.0026
1 - 0.0026 = 0.9974
99.74% probability that 5 or more fish were caught.
c) between 5 and 12 fish were caught.
Using continuity correction, this is [tex]P(5 - 0.5 \leq X \leq 12 + 0.5) = P(4.5 \leq X \leq 12.5)[/tex], which is the pvalue of Z when X = 12.5 subtracted by the pvalue of Z when X = 4.5. So.
From a), when X = 12.5, Z has a pvalue of 0.5910
From b), when X = 4.5, Z has a pvalue of 0.0026.
So
0.5910 - 0.0026 = 0.5884
58.84% probability that between 5 and 12 fish were caught.
expand and simplify (4+√2)(6-√2) give your answer in the form b+√2
Answer:
22+2[tex]\sqrt{2}[/tex]
Step-by-step explanation:
Expanded it is
24-4[tex]\sqrt{2}[/tex]+6
This simplified leads to 22+2[tex]\sqrt{2}[/tex]
Hope this helps
2. The perimeter of a rectangular pool is 98 feet.
The ratio of the width to the length is 3:4.
What are the dimensions of the pool?
Answer:
56 and 42
Step-by-step explanation:
3:4
3 + 4 = 7
98 / 7 = 14
14 x 3 = 42
14 x 4 = 56
56 + 42 = 98
The dimensions of the pool can be categorized as below:
Length equals 28 feet
Width equals 21 feet
What is the perimeter?The perimeter of a rectangle is the outside length of the rectangle. To find the perimeter we add all the 4 sides of the rectangle.
Perimeter = 2(length) + 2 (width )
The ratio of the width to the length is 3:4. The width of the rectangle is 3x
We know,
Length of the rectangle is 4xWidth =3x
Length = 4x
Substitute it in the perimeter formula and solve for x.
Given that,
Perimeter of a rectangle = 98 feet
Perimeter = 2(length )+2(width)
98 = 2(4x)+2(3x)
98 = 8x+6x
98 = 14x
∵ x = 7
Now, we will find out the length and width of the pool.
Length = 4x
= 4(7)
= 28 ft.
and,
Width = 3x
= 3(7)
= 21 ft.
Thus, the length of the pool is 28 feet and the width of the pool is 21 feet
Learn more information about 'Perimeter' here: brainly.com/question/89866
The sum of two numbers is 15. One of the
numbers is 12 times the other. Find the
bigger number.
Answer:
The Sum of two number is 15: x + y = 15
One of the numbers is 12 times the other: x = 12y:
System of equations:
x + y = 15
x = 12y
Plug x = 12y into equation one(x + y = 15)
12y + y = 15
13y = 15
y = 15/3
y ≈ 1.15
Now we know x = 12y
x = 12(15/13) = 180/13
x = 180/13
x ≈ 13.85
The biggest number is x = 180/13.
Which rays are part of line BE?
AC and
A and
A and A
A and A
Answer:
A and A that is the answer
the mean for the scores 17,19,19,23,26
Answer:
the mean is 20.8.
Step-by-step explanation:
Add all the numbers to get 104. Then, divide it by how many score there were, 5. 104/4= 20.8
Solution,
Given data: 17,19,19,23,26
summationfX=104
N(total no.of items)=5
Now,
Mean=summation FX/N
=104/5
=20.8
hope it helps
Good luck on your assignment
How to solve 3/7+3/14
Answer:
About 0.642
Step-by-step explanation:
two cars start at the same time, but travel In opposite direction. one car's average speed is 20 miles per hour. at the end of 4 hours, the two cars are 280 miles apart. find the average speed in mph of the car.
Answer: 50 MPH ON AVERAGE: ✌️
20 mph for four hours is 80 miles
200 miles divided by 4 hours is 50 mph
Answer:
50 mph :)
Step-by-step explanation:
20*4=80
280-80=200
200/4=50
answer 50 mph
In a religious survey of southerners, it was found that 65% believe in angels. If you have a random sample of 8 southerners: What is the probability that at most 3 of the southerners believe in angels
Answer:
10.60%
Step-by-step explanation:
We have to solve the above we have to apply bimonial and add each one, like this:
p (x <= 3) = p (x = 0) + p (x = 1) + p (x = 2) + p (x = 3)
p (x <= 3) = 8C0 * (0.65) ^ 0 * (0.35) ^ 8 + 8C1 * (0.65) ^ 1 * (0.35) ^ 7 + 8C2 * (0.65) ^ 2 * (0.35) ^ 6 + 8C3 * (0.65) ^ 3 * (0.35) ^ 5
p (x <= 3) = 8! / (0! (8-0)!) * (0.65) ^ 0 * (0.35) ^ 8 + 8! / (1! (8-1)!) * (0.65 ) ^ 1 * (0.35) ^ 7 + 8! / (2! (8-2)!) * (0.65) ^ 2 * (0.35) ^ 6 + 8! / (3! (8-3)!) * (0.65) ^ 3 * (0.35) ^ 5
p (x <= 3) = 0.1060
therefore the probability is 10.60%
Answer:
The probability that at most 3 of the southerners believe in angels is 10.61%
Step-by-step explanation:
Given;
65% believe in angels = p
then, 35% will not believe in angel = q
total sample number, n = 8
The probability that at most 3 southerners believe in angels is calculated as;
= p( non believe in angel) or p( 1 southerner believes and 7 will not believe) or p( 2 southerner believe and 6 will not believe) or p( 3 southerner believe and 5 will not believe)
= 8C₀(0.65)⁰(0.35)⁸ + 8C₁(0.65)¹(0.35)⁷ + 8C₂(0.65)²(0.35)⁶ + 8C₃(0.65)³(0.35)⁵
= 1(1 x 0.000225) + 8(0.65 x 0.000643) + 28(0.4225 x 0.00184) + 56(0.2746 x 0.00525)
= 0.1061
= 10.61%
Therefore, the probability that at most 3 of the southerners believe in angels is 10.61%
Please answer this correctly
Answer: Rectangular pyramid
Step-by-step explanation:
When you think about it, a pyramid has 3 faces that are triangular!
If you found this answer helpful, give it a five-star rating and a thanks! I would really appreciate it!
You can even give it a brainliest if you want! ;)
Quadrilateral HIJK has sides measuring 12 cm, 26 cm, 14 cm, and 30 cm. Which could be the side lengths of a dilation of HIJK with a scale factor of 1.5?
Answer:
(C) 18cm, 39cm, 21cm and 45cm.
Step-by-step explanation:
The quadrilateral HIJK has sides measuring 12 cm, 26 cm, 14 cm, and 30 cm.
When HIJK is dilated with a scale factor of 1.5, the side lengths becomes:
12 X 1.5 =18 cm
26 X 1.5 =39 cm
14 X 1.5 =21 cm
30 X 1.5 =45 cm
A dilation of HIJK with a scale factor of 1.5 will give us the side lengths:
18cm, 39cm, 21cm and 45cm.
The correct option is C.
Ariana is going to invest in an account paying an interest rate of 3.4% compounded monthly. How much would Ariana need to invest, to the nearest dollar, for the value of the account to reach $9,200 in 14 years?
Answer:
Ariana is going to invest P($) in an account paying an interest rate of 3.4% compounded monthly.
After 14 years, the amount of money in Adrina's account is calculated by:
A = P x (1 + rate)^(time)
or
A = P x (1 + 3.4/12)^(14 x 12)
or
9200 = P x (1 + 3.4/12)^(14 x 12)
=> P = 9200/[(1 + 3.4/12)^(14 x 12)]
=> P = 5791.044$
Hope this helps!
:)
The value of the account to reach $9,200 in 14 years is $5,791.
Calculation of the value of the account:Since interest rate of 3.4% compounded monthly. And, the amount is $9,200 in 14 years
So, the value should be
[tex]A = P \times (1 + rate)^{(time)}\\\\A = P \times (1 + 3.4/12)^{(14 \times 12)}\\\\9200 = P \times (1 + 3.4/12)^{(14 \times 12)}\\\\ P = 9200\div [(1 + 3.4/12)^{(14 \times 12)]}[/tex]
P = $5791
hence, The value of the account to reach $9,200 in 14 years is $5,791.
Learn more about rate here: https://brainly.com/question/14565608
What is the inverse of the function f(x) = 2x + 1? h(x) = one-halfx – one-half h(x) = one-halfx + one-half h(x) = one-halfx – 2 h(x) = one-halfx + 2
Step-by-step explanation:
To find the inverse we just switch f(x) and x so we get :
x = 2f(x) + 1
2f(x) = x - 1
h(x) = 1/2x - 1/2
Hope this helps!
Answer:
x = 2f(x) + 1
2f(x) = x - 1
h(x) = 1/2x - 1/2
Step-by-step explanation:
Can I please get some help on this...I have tried to many times...
Answer: A
Step-by-step explanation:
First, the problem is g(f(x)). You would plug in f(x) wherever you see an x in g(x). To find the domain, you take the bottom function, and set it equal to 0.
[tex]\sqrt{x-2} =0[/tex]
When you solve that, you get x=2. You know your domain is x≥2, but there is as asymptote at x=11. That means the graph never reaches x=11, but gets very close. You find that by setting the entire equation equal to 0 and solve from there.
Find the slope of the line on the graph. Write your answer or a whole number, not a mixed number or decimal
Answer:
-3/2
Step-by-step explanation:
The slope can be found through the equation y2 - y1 / x2 - x1
Finding two points on this line is what we start by doing.
Two points on the line I see are (0,-4) and (2, -7)
Plugging this into the slope formula gives us -7 - (-4) / 2 - 0
Solving this gives us -3 / 2 as the slope.
what is 1/2*1^12 1/2
Answer: 0.5
Step-by-step explanation: I think that the answer.
What’s the correct answer for this?
Answer:
x = 5
Step-by-step explanation:
Since TV bisects (equally divides) EF hence <EKT = 90°
Also <EKT = 5x+65
So
5x+65 = 90
5x = 90-65
5x = 25
Dividing both sides by 5
x = 5
A friend gives you four baseball cards for your birthday. Afterward, you begin collecting them. You buy the same number of cards once each week. The equation y = 2x + 4 describes the number of cards, y, you have after x weeks.
Part 1 out of 3
Find and interpret the slope and the y−intercept of the line that represents this situation.
The slope is
, while the y−intercept is
. This equation represents starting with
cards and adding
cards each week.
Answer:
The slope is 2, while the y-intercept is 4. This equation represents starting with 4 cards and adding 2 cards each week.
Step-by-step explanation:
Given the equation which describes the number of cards, y, you have after x weeks: y=2x+4
Comparing this with the slope intercept form of the equation of the line: y=mx+b, where:
m is the slopeb is the y-intercept.We have that:
Slope
Slope, m=2.
A slope of 2 indicates that you buy 2 cards per week.
The y-intercept
The y-intercept of the line, b=4.
This is the starting value. In this case, it represents the number of cards you were given by your friend.
The slope is 2, while the y-intercept is 4. This equation represents starting with 4 cards and adding 2 cards each week.
What is the y-intercept of the line?
x 16 24 32
y 44 64 84
Answer:
The y-intercept of the line is 2
Step-by-step explanation:
You could try to find the slope of the line and then find the intercept with y axis by sloving b = y - ax
But here it seems easy enough once you see that the x values in the table increase by a factor of 8 and the y values in the table increase by a factor of 20.
(By the way, this is enough to give you the slope, because it is 8/20 ). But why bother?
Just extrapolate the table to the left, and you will find the y value where x = 0
x 0 8 16 24 32
y 2 22 44 64 84
So the y-intercept of the line is 2.
Extra:
The full equation of the line is:
y = 8/20x + 2
Answer:
(0,4)
Step-by-step explanation:
Chords XY and ZW intersect in a circle at P. If
XP = 7, PY=12, and WP= 14, find PZ.
Answer:
Length of segment PZ = 6 units
Step-by-step explanation:
As per theorem of intersecting chords in a circle ;
"Product of lengths of line segments on each chord are equal".
From the figure attached,
Chords XY and WZ are intersecting at point P in a circle.
By theorem; XP × PY = WP × PZ
7 × 12 = 14 × PZ
PZ = [tex]\frac{84}{14}[/tex]
PZ = 6 units
Therefore, length of the segment PZ = 6 units.
You operate a gaming Web site, www.mudbeast.net, where users must pay a small fee to log on. When you charged $3 the demand was 1100 log-ons per month. When you lowered the price to $2.50, the demand increased to 1375 log-ons per month.
A) Construct a linear demand function for your Web site and hence obtain the monthly revenue R as a function of the log-on fee x.
B) Your Internet provider charges you a monthly fee of $30 to maintain your site. Express your monthly profit P as a function of the log-on fee x.
C) Determine the log-on fee you should charge to obtain the largest possible monthly profit. What is the largest possible monthly profit?
Answer:
A) The linear relation between price and demand is:
[tex]d=-550x+2750[/tex]
The revenue R is:
[tex]R=-550x^2+2750x[/tex]
B) The profit functionP is:
[tex]P=-550x^2+2750x-30[/tex]
C) The largest monthly profit is obtained with a log-on fee of $2.5 per month. This corresponds to a profit of $3407.5.
Step-by-step explanation:
We have a site where the number of log-ons depends on our monthly fee. A linear relation is established between the price (log-on fee) and the number of log-ons.
We have two points for this linear relationship:
At price x=3, the demand is d=1100.At price x=2.5, the demand is d=1375.We will model the relation:
[tex]d=mx+b[/tex]
We can calculate the slope m as:
[tex]m=\dfrac{\Delta d}{\Delta x}=\dfrac{d_2-d_1}{x_2-x_1}=\dfrac{1375-1100}{2.5-3}\\\\\\m=\dfrac{275}{-0.5}=-550[/tex]
Then, replacing one point in the linear equation, we can calculate the intercept b:
[tex]d_1=mx_1+b\\\\1100=(-550)\cdot 3+b\\\\1100=-1650+b\\\\b=1100+1650=2750[/tex]
Then, the linear relation between demand and price is:
[tex]d=-550x+2750[/tex]
The revenue R can be expressed as the multiplication of the price and the demand:
[tex]R=x\cdot d=x(-550x+2750)=-550x^2+2750x[/tex]
If we have a fixed cost of $30 per month, the profit P is:
[tex]P=R-FC=-550x^2+2750x-30[/tex]
We can maximize the profit by deriving the profit function and making it equal to zero.
[tex]\dfrac{dP}{dx}=0\\\\\\\dfrac{dP}{dx}=-550(2x)+2750(1)=0\\\\\\-1100x+2750=0\\\\x=\dfrac{2750}{1100}=2.5[/tex]
This corresponds to a profit of:
[tex]P(2.5)=-550(2.5)^2+2750(2.5)-30\\\\P(2.5)=-550\cdot 6.25+6875-30\\\\P(2.5)=-3437.5+6875-30\\\\P(2.5)=3407.5[/tex]
6+7=73.5
7+8=84
11+12=126
12+24=390.6
24+28=?
Answer:
52
Step-by-step explanation:
24+28 = 52
52 - 24 = 28
Gina has completed her CAD drawing and wants to take a print out. What final step must she take before taking the print out?
A.
select the units for the measurements
B.
select the scale for the drawing
C.
select the color for the different parts of the drawing
D.
delete all the layers created and retain only the final layer
Answer:
It is B I think
Step-by-step explanation:
D is incorrect
Which graph is the solution to Ixl > 10?
Answer: D with the open circles at -10 and 10 with a line in between them.
Step-by-step explanation:
Since x has an absolute value sign around it this means that all the values will be positive which includes negative numbers.
Since the solution must be less than 10 we need all values under 10 which is 1-9.9 repeating. we can show the 9.9 repeating with an open circle on the value of 10. This also goes for the negative values for x as we can go up to -9.9 repeating because it will become positive.
The only graph that shows these values is D with the open circles at -10 and 10 with a line in between them.
Answer:
D
Step-by-step explanation:
Hope this helps
