it takes adrian 12 min to swim 4 laps.How many hours will it take him to swim 50 laps?
Answer:
150 minutes
Step-by-step explanation:
If f(x) = 5x, what is y(x)?
1. F^1(x)=-5x 2. F^1(x)=-1/5x 3. F-1(x)1/5x 4. F-1(x)=5x
Answer:
f^-1 (x) = x/5
Step-by-step explanation:
f(x) = 5x
Replace f(x) with y
y= 5x
Exchange x and y
x = 5y
Solve for y
Divide each side by 5
x/5 = 5y/5
x/5 = y
The inverse is x/5
-2 1/2 ÷ 6
divide. please only give correct answer.
Answer:
5/12 fractions form .416 for decimal form
Step-by-step explanation:
15 points if answered correctly
Answer:
y= 7156/317x -44488/317
Step-by-step explanation:
I put it in fraction form for you.
what is 6 divided by 3/5
Answer:
10
brainliest plz? tysm
Hi! I believe your answer is 10. I hope this helps you! Good luck and have a great day. ❤️ (Thank you for the free points, by the way! :))
John had a 20 ounce bottle of water. He drank 12 ounces. What percent, p, is left in the bottle?
Answer:
40%
Step-by-step explanation:
Answer:
40%Step-by-step explanation:
Original Volume = 20 ounces
Remaining Volume = 20-12
= 8 ounces
Percentage :
[tex]\frac{8}{20}\times 100\\\\=\frac{800}{20} \\\\Simplify\\\\=40\%[/tex]
My hero academic if you watch it whats your fav character
Answer:
Its stupid by like todoroki =(
Step-by-step explanation:
Answer:
Bruh u already know Todoroki he reminds me of Zuko from Avatar.
Anyways have u seen The Seven Deadly Sins?
Which equation is graphed here?
Answer:
Y=5 X=1 multiply them bother
Step-by-step explanation:
Leila’s class has a female student-to-male student ratio of 3:2. If Leila’s class has 18 girls, how many boys does she have?
WILL RECIEVE BRAINLIST
Athe answer is 12
Step-by-step explanation:
just divide 18 by 3 and then you get 6 and multiply 2 by 6 and you get 12 hope this helps
Olivia drove 883 miles from San Francisco to Seattle in 4 days she drove the same number of miles each day how many miles did Olivia drive each day
Answer:
She drove 220.75 miles each day.
Step-by-step explanation:
883÷4
Answer:
She drove 220.45 because you get that answer if you divide 883 by 4
A flower vase has a volume of 1480 cubic centimeters (cm3). Use the fact
that 1 inch is equal to 2.54 cm to convert this volume to cubic inches (in).
Round your answer to the nearest tenth. Do not type the units in the space
below.
Answer:
The volume of the flower vase is 90.3 cubic inches.
Step-by-step explanation:
Dimensionally speaking, volume [tex][V][/tex] is equivalent to the product of length [tex][L][/tex], length [tex][L][/tex] and length [tex][L][/tex]. That is:
[tex][V] =[L]\times [L]\times [L][/tex]
In this case, an inch equals 2.54 centimeters and we proceed to convert the given volume of the flower vase as follows:
[tex]V = 1480\,cm^{3}\times \frac{1\,in\times 1\,in\times 1\,in}{2.54\,cm\times 2.54\,cm\times 2.54\,cm}[/tex]
[tex]V = 90.3\,in^{3}[/tex]
The volume of the flower vase is 90.3 cubic inches.
What does credit worthiness mean
Answer:
are you worthy of credit :)
Step-by-step explanation:
What's the 10th term of y= 10x - 2. This is math 1 freshman math arithmetic sequence
Answer:17 is your answer
Answer:
17
Step-by-step explanation:
C. If the apothem of a regular polygon is represented by a and the length of one side of
the polygon is represented by /, then what would be the area of one of the smaller
triangles that the shape is dissected into?
Answer:
a regular polygon is a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length). Regular polygons may be either convex or star. In the limit, a sequence of regular polygons with an increasing number of sides approximates a circle, if the perimeter or area
Step-by-step explanation:
The area of one of the smaller triangles that the shape is dissected into is al/4.
What is a cube?It is a polygon having six faces.
The volume of a cube is side³.
We have,
The apothem of a regular polygon is given below.
From the figure,
The side length will be l.
The apothem will be a.
Now,
The area of the smaller triangle.
Base = l/2
Height = apothem = a
= 1/2 x base x height
= 1/2 x l/2 x a
= al/4
Thus,
The area of the smaller triangle is al/4.
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A set of data points has a line of best fit of ý = 2.5x - 1.5.
What is the residual for the point (2,5)?
A. 3.5
B. -1.5
C. 5
D. 1.5
the residual for points (2,5) will be 1.5.
What is a Linear equation?A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. Sometimes, the aforementioned is referred to as a "linear equation of two variables," with y and x serving as the variables.
We have been given the best-fit line:
y = 2.5 x -1.5
We have to find residual for the point (2, 5)
To find the residual value we will subtract the predicted value from the value which is actual.
We will find the predicted from the given point so substitute x = 2 in the given line which is:
y= 2.5 x -1.5
y=2.5(2) -1.5
y=5 -1.5
y = 3.5
Hence, the predicted value is 3.5
And actual value is 5
Hence,
Residual = actual - predicted
Residual = 5 - 3.5 = 1.5
Hence, our required result is: 1.5
Therefore, the residual for points (2,5) will be 1.5.
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An accountant charges an initial fee of $100 plus a rate of $40 per hour. The function that shows the total fees charged is f(x) = 40x + 100 How many hours did the accountant work if they charged $580?
Answer:12
Step-by-step explanation:The accountant worked 12 hours
PLEASE HELP
solve x^3= 1/8
Answer:
x=1/2
Step-by-step explanation:
Solution
5x20=7(x+2)
HELP TIMED QUESTION!!plss
The quadratic function f(x)= x^2 has __
A. No zeros
B. Exactly one zero
C. Exactly two zeros
D. More than two zeros
Answer:
C. Exactly two zeros
Step-by-step explanation:
It makes a U and touches twice on the x-axis.
Which function describes this graph?
F(x)=x+2
F(x)=4x+2
F(x)=1/4x+2
SHOW WORK: Evaluate g(5) with g(x)=20/x
Answer:
4
Step-by-step explanation:
g(5)=20/5
g(5)=4
The larger of two numbers is nine more than the smaller numbet. If the sum of the
numbers is 17, find the two numbers. Write your answer as two numbers separated by
a comma,
Type your answer
Answer:
x = 4
y = 13
Step-by-step explanation:
x + 9 = y--------(1)
x + y = 17---------(2)
(1) ----> (2),
x + 9 + x = 17
2x + 9 = 17
2x = 8
x = 4
y = 13
The news program wishes to test whether there is evidence that more than three-quarters of U.S. adults are opposed to the verdict. Five hundred and sixty-two partici- pants participated in the survey, of which 82% said that they were unhappy with the verdict. a. State the null and alternative hypotheses for this test. b. What is the value of the statistic
Answer:
A)Null Hypothesis; H0: p ≤ 0.75
Alternative Hypothesis; Ha: p > 0.75
B) Test statistic is z = 3.83
Step-by-step explanation:
We are told the news program wants to test whether there is evidence that more than three - quarters of U.S. adults are opposed to the verdict.
Thus, p = 3/4 = 0.75
Thus,the hypothesis is;
Null Hypothesis; H0: p ≤ 0.75
Alternative Hypothesis; Ha: p > 0.75
Also, from a sample of Five hundred and sixty - two participants that participated in the survey, 82% said that they were unhappy with the verdict.
Thus; p^ = 82% = 0.82 and n = 562
Population standard deviation is given by the formula;
σ_p = √(p(1 - p)/n)
σ_p = √(0.75(1 - 0.75)/562)
σ_p = 0.0183
Now, the formula for the test statistic is;
z = (p^ - p)/σ_p
z = (0.82 - 0.75)/0.0183
z = 3.83
A farmer decided to put a fence around his property that measures 170 feet long and 120 feet wide. What is the perimeter of his property?
Answer: 580
Step-by-step explanation:
A fence is usually a rectangle shape in these questions
Perimeter of a rectangle is P = 2l + 2w
P = 2(170) + 2(120) = 580
Help, I’ll give the brainliest to the first one who answers, solve for x
x-4/6 = x+2/12
Need Help. ( Look at the picture). Will Mark Brainliest. Graph the step function over the interval. [ Please Show me on paper]. [ Only Answer if you truly know how to work this problem please and thank you]
I have an answer for you. This answer uses unclosed (white-center) holes to show "the value is not here" and closed (black-center) holes to show "the value is here." This step function is a "round up" of x+3, so it is exactly at y=3 at x=0.
Thank you for the Brainliest!
For this arithmetic sequence 3, 8, 13, 18 … Which term of the sequence is 103?
a. 5
b. 90
c. 21
d. 20
Answer:
C
Step-by-step explanation:
Answer:
D.
Step-by-step explanation:
The formula for the sequence is 3+5i, so setting that to 103 we get
3+5i = 103
Subtract 3 from both sides, 5i = 100
Divide both sides by 5, and we get:
i = 20
El profesor Ricardo consiguió para una comunidad de 48 familia un tanquero con 800 litros con agua y otro tanquero con 430 litro con agua ¿cuantos litros de agua cada familia ?¿crees que sobre agua ?
Answer:
25.625 litros de agua por familia.
No sobrará agua.
Step-by-step explanation:
En promedio el ser humano tiene que tomar al menos 3 litros de agua al día, con esto en mente y pensando que tienes 48 familias de las cuales en promedio serían 5 personas que conforman cada familia, tendrías que son en total:
48*5=240 personas
Tienes que tener almenos 3 litros de agua para cada persona:
240*3=720
Tienes en total 1230 litros de agua, sólo para cubrir lo que las personas necesitan tomar de agua son 720, falta ver si tienen que lavar, cocinar, limpiar o bañarse, entonces con los 1230 litros conseguidos, no alcanzaría ni para dos días de sólo tomar agua.
Given a standard normal distribution, find the area under the curve that lies (a) to the left of z = −1.39; (b) to the right of z = 1.96; (c) between z = −2.16 and z = −0.65; (d) to the left of z = 1.43; (e) to the right of z = −0.89; (f) between z = −0.48 and z = 1.74.
Complete Question
Given a standard normal distribution, find the area under the curve that lies
(a) to the left of z = −1.39;
(b) to the right of z = 1.96;
(c) between z = −2.16 and z = −0.65;
(d) to the left of z = 1.43;
(e) to the right of z = −0.89;
(f) between z = −0.48 and z = 1.74.
Answer:
a
[tex]P(Z < -1.39) = 0.082264[/tex]
b
[tex]P(Z > 1.96) = 0.025[/tex]
c
[tex]P(-2.16 < Z < -0.65 ) =0.2457[/tex]
d
[tex]P(Z < 1.43) = 0.92364[/tex]
e
[tex]P(Z > -0.48) = 0.68439[/tex]
f
[tex]P(-0.48 < Z < 1.74 ) =0.6435[/tex]
Step-by-step explanation:
Considering a
From the question we are told that
The z-score is z = -1.39
Generally from the z table the area under the curve that lies to the left of z = -1.39 is
[tex]P(Z < -1.39) = 0.082264[/tex]
Considering b
From the question we are told that
The z-score is z = 1.96
Generally from the z table the area under the curve that lies to the right of z = 1.96 is
[tex]P(Z > 1.96) = 0.025[/tex]
Considering c
From the question we are told that
The z-score is z = −2.16 and z = −0.65
Generally from the z table the area under the curve that lies between z = −2.16 and z = −0.65;
[tex]P(-2.16 < Z < -0.65 ) = P(Z < -0.64 ) - P( Z < -2.16)[/tex]
From the z table the area under (Z < -0.64 ) and ( Z < -2.16) is
[tex]P(Z < -0.64 ) = 0.26109[/tex]
and
[tex]P( Z < -2.16) = 0.015386[/tex]
So
[tex]P(-2.16 < Z < -0.65 ) =0.26109- 0.015386[/tex]
=> [tex]P(-2.16 < Z < -0.65 ) =0.2457[/tex]
Considering d
From the question we are told that
The z-score is z = 1.45
Generally from the z table the area under the curve that lies to the left of z = 1.43 is
[tex]P(Z < 1.43) = 0.92364[/tex]
Considering e
From the question we are told that
The z-score is z = -0.48
Generally from the z table the area under the curve that lies to the right of z = 0.48 is
[tex]P(Z > -0.48) = 0.68439[/tex]
Considering f
From the question we are told that
The z-score is z = −0.48 and z = 1.74
Generally from the z table the area under the curve that lies between z = −2.16 and z = −0.65;
[tex]P(-0.48 < Z < 1.74 ) = P(Z < 1.74 ) - P( Z < -0.48)[/tex]
From the z table the area under (Z < 1.74 ) and ( Z < -0.48) is
[tex]P(Z < 1.74 ) = 0.95907[/tex]
and
[tex]P( Z < -0.48 ) = 0.31561[/tex]
So
[tex]P(-0.48 < Z < 1.74 ) = 0.95907 - 0.31561[/tex]
=> [tex]P(-0.48 < Z < 1.74 ) =0.6435[/tex]
The standard normal table shows the mathematical table which represent the value below a z-score in standard normal distribution. It is also known as z-table.
(a) The correct answer is 0.082264.
(b) The correct answer is 0.025
(c) The correct answer is 0.2457.
(d) The correct answer is 0.68439.
(e) The correct answer is 0.6435
Given:
(a)
The z-score is z = -1.39
Refer the z-table area under the curve that lies to the left of [tex]z=-1.39[/tex],
[tex]P(Z<-1.39)=0.082264[/tex]
(b)
.The z-score is z = 1.96
Refer the z-table area under the curve that lies to the right of [tex]z=1.96[/tex],
[tex]P(Z>1.96)=0.025[/tex]
(c)
The z-score is [tex]z = -2.16[/tex] and [tex]z=-0.65[/tex]
Refer the z-table area under the curve that lies between [tex]z = -2.16[/tex] and [tex]z=-0.65[/tex],
[tex]P(-2.16<Z<-0.65)=P(Z<-0.64)-P(Z<-2.16)[/tex]
Thus,
[tex]P(Z<-0.64)=0.26109\\P(Z<-2.16)=0.015386\\P(-2.16<Z<-0.65)=0.26109-0.015386\\P(-2.16<Z<-0.65)=0.2457[/tex]
(d)
The z-score is [tex]z =1.45[/tex]
Refer the z-table area under the curve that lies to the right [tex]z = 1.45[/tex],
[tex]P(Z<1.45)=0.92364[/tex]
(e)
The z-score is [tex]z = -0.48[/tex]
Refer the z-table area under the curve that lies to the right [tex]z = -0.48[/tex],
[tex]P(Z>-0.48)=0.68439[/tex]
(f)
The z-score is [tex]z =-0.48[/tex] and [tex]z = 1.74[/tex]
Refer the z-table area under the curve that lies between [tex]z =-0.48[/tex] and[tex]z = 1.74[/tex],
The z table the area under [tex](Z < 1.74 )[/tex] is,
[tex]P(Z<1.74)=0.95907[/tex]
The z table the area under [tex](Z < -0.48 )[/tex] is,
[tex]P(Z<-0.48)=0.31561[/tex]
Calculate the area under the curve that lies between [tex]z =-0.48[/tex] and[tex]z = 1.74[/tex],
[tex]P(-0.48<Z<1.74)=P(Z<1.74)-P(Z<-0.48)\\P(-0.48<Z<1.74)=0.95907-0.31561\\P(-0.48<Z<1.74)=0.6435[/tex]
Thus,
(a) The correct answer is 0.082264.
(b) The correct answer is 0.025
(c) The correct answer is 0.2457.
(d) The correct answer is 0.68439.
(e) The correct answer is 0.6435
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A small jet can carry up to passengers and crew members. There is a weight restriction of pounds on board. The combined weight of each passenger (or crew member) and his luggage has a mean of pounds, with a standard deviation of pounds. What is the probability that the weight limit will be exceeded when there are exactly passengers and crew members on board? Carry your intermediate computations to at least four decimal places. Report your result to at least three decimal places.
Complete Question:
A small jet can carry up to 41 passengers and 3 crew members. There is a weight restriction of 9200 pounds on board. The combined weight of each passenger (or crew member) and his luggage has a mean of 197.9 pounds, with a standard deviation of 64.1 pounds. What is the probability that the weight limit will be exceeded when there are exactly 41 passengers and 3 crew members on board? Carry your intermediate computations to at least four decimal places. Report your result to at least three decimal places.
Answer:
The probability that the weight limit will be exceeded when there are exactly 41 passengers and 3 crew members on board is;
0.253
Step-by-step explanation:
a) Data and Calculations:
Capacity of the small jet = 41 passengers and 3 crew members = 44
Weight restriction = 9,200 pounds
Mean of the combined weight of passengers and crew = 8,707.6 (44 * 197.9) pounds
Weight's standard deviation = 2,802.4 (44 * 64.1) pounds
Excessive weight total = 11,528 (8,707.6 + 2,802.4)
Excess weight = Excessive weight total minus Total Weight Restriction
=2,328 (11,528 - 9,200)
Probability of exceeding weight limit = Excess weight/Weight restriction
= 2,328/9,200
= 0.253