Answer:
Step-by-step explanation:
Solve this by adding the volume of the cylinder with the volume of the cone. The volume of a cylinder is found from the equation:
pi * r^2 * h
In this case that gives pi * 50^2 * 30 = 75000pi
The area of the cone is found from the equation:
pi * r^2 * h *1/3
In this case you get pi * 50^2 * 10 * 1/3= 8333.pi
Add the two to ger 83333.333*pi ~261799
Lupe got 90% of the points correct on her science test. If there
were 30 points possible, how many points did Lupe get right?
Out of 200 students in a school, 30 have brown sandals. What is the probability that a student chosen at random would have brown sandals?
Answer:
There is a 15% chance a student chosen at random would have brown sandals.
Step-by-step explanation:
The required probability will be 0.15 that a student chosen at random would have brown sandals.
What is probability?Probability is defined as the possibility of an event being equal to the ratio of the number of favorable outcomes and the total number of outcomes.
the probability = number of favorable outcomes / total number of outcomes.
We have been given that out of 200 students in a school, 30 have brown sandals.
To determine the probability that a student chosen at random would have brown sandals.
The probability = number of favorable outcomes / total number of outcomes.
The probability = 30 / 200
The probability = 0.15
Thus, the required probability will be 0.15 that a student chosen at random would have brown sandals.
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Please help me!!!!!!
Answer:
Step-by-step explanation:
If the coordinates are (0, a) and (b, 0), we just use the distance formula to find the distance in terms of a and b:
[tex]d=\sqrt{(0-a)^2+(b-0)^2}[/tex] and
[tex]d=\sqrt{(-a)^2+b^2}[/tex] which simplifies to
[tex]d=\sqrt{a^2+b^2}[/tex]
and that's it!
1.8,1.35,2.5, squat root of 5 in least to greatest
Answer: 1.35, 2.5, 1.8
Step-by-step explanation:
Answer:
Step-by-step explanation:
1) 2.5^=97.6
2) 1.8^5= 18.8
3) 1.35^5=4.4
or
1) 2.50
2) 1.80
3) 1.35
A line goes through the points (8,9) (-2,4)
(B) Write the equation of the line in point-slope form. Show your work
PLEASE
Answer:
y-9=1/2(x-8)
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(4-9)/(-2-8)
m=-5/-10
m=1/2
y-y1=m(x-x1)
y-9=1/2(x-8)
Translate sentence into an equation
Five times the sum of a number and 6 equals 8.
Answer:
5(x+6) = 8
Step-by-step explanation:
What is the area please
The answer is 105 units²
Explanation:
Since the middle is a square, the base of all 4 triangles are equal.
Let x be the height of the triangles.
The height of the triangle can be defined as:
15 = 7 + x + x
15 = 7 + 2x
15 - 7 = 2x
x = 8/2
x = 4
Area = area of square + 4(area of triangle)
= (7 x 7) + 4(1/2(7)(4))
= 49 + 56
= 105 units²
Which type of graph would be best for showing the height of a sapling tree over the span of several weeks?
A. a bar graph
B. a circle graph
C. a histogram
D. a line graph
Answer:
its actually d
Step-by-step explanation:
it compares height to time
Diana is going to spin this spinner one time. What is the probability that she will spin a D compared to the probability that she will spin an F? A. Equally likely B. Less likely C. Certain D. Impossible
explain how to find the missing side of a right triangle when given an acute angle and one side
Answer: Measure out all the triangles and then subtract from the total and then their is your answer.
A golfer strikes a golf ball into the air from the ground. The height, h metres, of the ball
can be modelled by h = 32t – 4t2, where t is the time in seconds after it leaves the
ground.
i. On a sheet of graph paper, using a scale of 2 cm to represent 1 unit on the t -axis
and 1 cm to represent 5 units on the h -axis, draw the graph of h = 32t – 4t2
ii Use your graph to find he maximum height of the ball above the ground and the time
at which it occurs.
u dont have to draw the graph can u just find the values for me thanku
Answer:
64 m, at time t = 4 sec
Step-by-step explanation:
We must maximize the function h = 32t – 4t^2. One way in which to do this is to find the axis of symmetry, t = -b / [2a], and from that calculate the height:
a = -4, b = 32, c = 0
-32
and therefore the axis of symmetry is t = ---------------- = 4
2(-4)
The height, h, at time t = 4, is h(4) = 32(4) - 4(4)^2 = 64 m
The maximum height of the ball is 64 m, at time t = 4 sec
Step-by-step explanation:
The golf ball reaches its maximum vertical height when its vertical velocity h' becomes zero. Taking the derivative of h and setting it to zero, we get
h' = 32 - 8t = 0
which gives us t = 4 seconds. So after 4 seconds, the ball will reach its maximum height and its value is
h = 32(4) - 4(4)^2
= 128 - 64
= 64
A parabola and its focus are shown on the graph. The vertex of the parabola is at (0,0).
On a coordinate plane, a parabola opens to the right. It has a vertex at (0, 0) and a focus (3, 0).
What is the equation of the directrix of the parabola?
y = 3
y = –3
x = 3
x = –3
Answer:
y = -3
Step-by-step explanation:
the length from directrix to vertex is equal to the length from focus to the vertex.
Answer: y=-3
Step-by-step explanation: y = -3 Step-by-step explanation: the length to vertex is equal
Section 1 - Question 1
Stanley attempted to simplify the expression below.
4. (2.5x - 1.25) – 3x
His work, step by step, Is shown below.
Step 1: -4. {(2.5x + (-1.25)} – 32
Step 2: - 10x + (-5) - 3:0
Step 3:- 10.2 - 3x + (-5)
Step 4: - 13x - 5
In which step did he make his first error simplifying the expression?
A
Step 1
B
Step 2
Answer:
a and bwhich step did he make his first error simplifying the expression?
A
Step
At a track meet, a girl runs 51 meters in 8 seconds. What’s the unit rate?
Answer:
the unit rate is 6.375 meters per second.
Step-by-step explanation:
51 meters ÷ 8
——————————-
8 seconds ÷ 8
= 6.375 meters
——————————
1 second
6.375
51 / 8
8÷ 8
6.375 meters per second
Please help I’ll give brainliest
Answer:
A) 1
B) 25
C) 0.007
D) 0.03
Step-by-step explanation:
A) 1 cm is 10mm so multiply the given number by ten to get the answer
B) 1m is 1000mm so divide the given number by one thousand to get the answer
B) 1kg is 1000g so divide the given number by one thousand to get the answer
C) One ml is 1000000 times smaller than 1kl so divide your number by 1000000 to get the answer
a recipe for ginger cookie uses 4 cups of flour and 2 cups of sugar write a ratio to show the relationship of flour to sugar
For every ginger cookie:
4:2
According to a survey, about 30% of people ages 18 and older in a city have a cat. You ask 5 randomly chosen people (ages 18 and older) whether they have a cat. What is the probability that at least 2 people have a cat? Round your answer to the nearest hundredth.
Step-by-step explanation:
When they ask what the prob that at most 3/4 people asked have a pet, they are asking what is the prob that 0, 1, 2, or 3 people answer yes. So you could calculate all 4 of those and then add them together.
However, in this case, since there's only 1 other possible outcome (all 4 have a pet), we could just calculate the prob of that and subtract it from 1 to get the prob of everything else happening.
We'll use the binomial distribution formula where n=4, k=4, and P=.6.
nCk * P^n * (1-P)^(n-k)4C4 * (.6)^4 * (.4)^0.1296
So the prob of at least 3 having pets = 1 - P(all 4 have pets) which is 1-.1296 = .8704. You could double check this by calculating the prob of the other 4 outcomes and then adding them together.
The probability that at least 2 people have a cat is 0.522 or 52.2%.
What is probability?Probability is defined as the possibility of an event being equal to the ratio of the number of favorable outcomes and the total number of outcomes.
This is a problem that can be solved using the binomial probability formula, which gives the probability of getting exactly k successes (in this case, people with cats) out of n trials (in this case, people you ask) with a probability of success (in this case, having a cat) of p.
The formula is:
P(k) = (n choose k) × [tex]p^k \times (1-p)^{(n-k)}[/tex]
where (n choose k) is the binomial coefficient, which is equal to n! / (k! × (n-k)!).
For this problem, n = 5 (the number of people you ask), k = 2 (the number of people who have cats), and p = 0.3 (the probability of a person having a cat, according to the survey).
P(2) = (5 choose 2) × 0.3² × 0.7³
P(2) = 0.252
To find the probability of at least 2 people having a cat, we have to add up the probability of getting exactly 2, 3, 4, and 5 people having cats.
P(≥2) = P(2) + P(3) + P(4) + P(5)
Substituting the values we get:
P(≥2) = 0.252 + 0.189 + 0.072 + 0.009 = 0.522
So, the probability that at least 2 people have a cat is 0.522 or 52.2%.
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JOURNAL 5.3.4.
PLZZZ HELP, I NEED 1-9
Answer:
8?
Step-by-step explanation:
I would like some help pleas
Answer:
Step-by-step explanation:
Student who did not play Volleyball = Students who play only hockey + students who don't play any game
= 5 + 3 = 8
Students who play hockey only = 5
1. Provide an example of a variable term.
2. Provide an example of a constant term.
3. When looking at an expression and/or equation, how can we tell that we need to distribute?
4. When solving an equation, if you get the solution, x=0, how many solutions to the equation are there?
(One solution, no solution, or infinite solutions)
5. When solving an equation, if you get 5 = 11, what does this mean? (One solution, no solution, or infinite
solutions)
6. When solving an equation, if you get 5 = 5, what does this mean? (One solution, no solution, or infinite
solutions)
Answer:
Step-by-step explanation:
1) a variable term contains a variable. If x is a variable
5x is an example of a variable therm
2) a constant therm is not a variable
3 is an example
3) for example when a number multiply a sum or a difference between a constant and a variable
Example:
2(x-3) = 5(x+4)
4) one solution: only if x is equal to 0 the equation is true
5) no solution: the equation can’t be true for ever value of the variable
6) infinite solutions: the equation is ever true for every value of the variable
sum of two integers is -234
If one of them
is 57. find the other.
Answer:
the answer is -281
Step-by-step explanation:
x+57=-234
x= -57-234
x= -281
Answer:
x+57
x=234-57= 177 I hope it will help you please follow me
Mercury is at a distance of 46213267 km from the sun. If the value of this area is rounded off to the nearest one hundred, then the result would be .
Answer:
46,213,300 km
Step-by-step explanation:
46,213,267
in the above number ;
7 = units
6 = tens
2 = hundred
3 = thousand
1 = ten thousand
2 = hundred thousand
6 = million
4 = 10 million
to round off to the nearest hundred, look at the number in the tens (6). If this number is greater than or equal to 5, add 1 to the hundreds unit, if this is not the case, add zero
because 6 is greater than 5, add one to the hundred value
= 46,213,300 km
8u^8+(-21u^8)
Helpppp quick
[tex]\huge\textsf{Hey there!}[/tex]
[tex]\mathsf{8u^8 + (-21u^8)}\\\mathsf{= 8u^2 - 21u^8}\\\large\textsf{COMBINE the LIKE TERMS}\\\mathsf{=(8u^8 - 21u^8)}\\\mathsf{= 8 - 21\rightarrow\boxed{\bf -13}}\\\mathsf{= 8u^2 - 21u^8 \rightarrow \bf -13u^8}\\\\\\\\\boxed{\boxed{\large\textsf{Answer: \bf -13u}\bf ^2}}\huge\checkmark\\\\\\\\\large\textsf{Good luck on your assignment and enjoy your day!}\\\\\\\frak{Amphitrite1040:)}[/tex]
Solve for R.
3/4r-3 1/4=49/16
Answer:
101/12
Step-by-step explanation:
3/4r-3 1/4=49/16
3 1/4=13/4
3/4r-13/4=49/16
3/4r=49/16+13/4
3/4r=49/16+52/16
3/4r=101/16
r=(101/16)/(3/4)
r=(101/16)(4/3)
r=101/12
If 5x – 3y = 1 and
x - 2y = - 4, then xy = ? .
A 5
B 4
© 6
D 8
E 9
Answer:
[tex]6[/tex]
The answer is C:6
Question 2 of 10
f(x)=3✅x+11. Find the inverse of f(x).
A. f-1(x) = x^3 +11
B. f-1() = x^3 - 11
c. f-1(x) = (x +11)^3
D. f-1(x) = (x– 11)^3
SUBMIT
Ophelia spins each of the three shown spinners once. What is the
probability that the first spinner will land on A, the second on 4, and the
third on Green? Enter your answer as a fraction in simplest form. Use/to
write your fraction,
Answer:
jaja
yo buscando y vos preguntando
Step-by-step explanation:
Which table shows a function that is increasing only over the interval (–2, 1), and nowhere else?
Answer:
Following are the responses to the given question:
Step-by-step explanation:
Any feature increases when y-value should likewise be increased for the growth of x-values
Each table will be checked
table-1:
That we can see
-3, -2,-1 , 0, 1,2 x increase
And also -6,-3,-1,1,3,6 y increase
It increases, thus,
table-2:
That we can see
-3, -2,-1 , 0, 1,2 x increase
But between -2 and 1, it's asking
The y-values of -4,-1,1,4..... are increasing
This increases, thus,
table-3:
Which we can see
-3, -2,-1 , 0, 1,2 x increase
But y changes between -3 and -5 .....this decreases
This does not increase, thus,
table-4:
we can find that the x increase to -3, -2, -1, 0, 1,2 however y rises from 7 to 1.....
This does not increase, thus,
Answer:
B
Step-by-step explanation:
xét tính đồng biến ,nghịch biến của hàm số:
y=-x^4-2x^2+5
Answer:
si, bien =43<23
Step-by-step explanation:
the quotient of 6 divided by t
Answer:
6/t
Step-by-step explanation:
Quotient means divide
6/t
Answer:
you need to find out what the answer is or what t stands for!
Step-by-step explanation:
