Answers
Answer:
A=2πrh+2πr2=2·π·2·4+2·π·22≈75.39822
Step-by-step explanation:
Related Questions
A hailstone falls from a cloud at a height of 1,600 ft. If the equation for height as a function of time is h(t) = -16t2 + initial height where t is time in seconds and h(t) is height in feet, how many seconds will it take for the hailstone to hit the ground? [?] seconds
Answers
Answer:
10 seconds
Step-by-step explanation:
The function is
[tex]h(t)=-16t^2+\text{Initial height}[/tex]
Initial height = 1600 ft
t = Time taken
[tex]0=-16t^2+1600[/tex]
[tex]\Rightarrow -16t^2=-1600[/tex]
[tex]\Rightarrow t^2=\dfrac{1600}{16}[/tex]
[tex]\Rightarrow t^2=100\\\Rightarrow t=\pm 10[/tex]
So, time taken by the hailstone to reach the ground is [tex]10\ \text{seconds}[/tex].
Answer:
10 seconds
Step-by-step explanation:
SOMEONE PLEASE HELP AND MARK AS BRAINLIEST
Answers
A new car has a sticker price $20,880, while the invoice price paid on it was
$17,920. What is the percent amount of markup?
A. 14.18%
B. 16.52%
C. 46.19%
D. 53.81%
SUBMIT
Answers
Answer:
16.52
Step-by-step explanation:
How can you tell that a graph is a proportional ( what does it look like and what point will it always go through? )
Answers
Answer:
You can tell if a graph is a proportional relationship, by seeing if the line passes through the origin (0, 0). It looks like a straight line, which comes or goes through the origin.
Answer:
To determine whether x and y have a proportional relationship, see if the line through these points passes through the origin (0, 0). The points are on a line that passes through the origin. So, x and y have a proportional relationship.
si hay 3/4 de nieve de chocolate y vainilla el resto y el resto de es de fresa qué fracción total de la nieve es de fresa?
Answers
La fraccio total de nieve de fresa es de ¼.
5 km
5 km
7 km
Find the surface area
Answers
Answer:
190km
Step-by-step explanation:
2(wl + hl + hw)
2 · (5 · 7 + 5 · 7 + 5 · 5) = 190
good luck, i hope this helps :)
Mark swims 14 miles a day, 5 days a week. How many miles does he swim in 3 days?
Answers
Answer:
42 miles
Step-by-step explanation:
If Mark swims 14 miles a day, all you have to do to find how many miles he swims in 3 days is mulitply 14 by 3. Thats how you get the answer of 42!
:)
Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = –8x + x2 + 7 ?
left 4, down 9
left 4, up 23
right 4, down 9
right 4, up 23
Answers
Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = –8x + x2 + 7 ?
left 4, down 9
left 4, up 23
right 4, down 9<<<<<<< CORRECT
right 4, up 23
The translation should be right 4 units and down 9 units.
Which translation should we use?
First, we need to find the vertices of both functions.
for f(x) = x^2 the vertex is at (0, 0), as we already know.
For g(x) = -8x + x^2 + 7 the x-value of the vertex is at:
x = -(-8)/(2*1) = 4
Evaluating g(x) at x = 4 we get:
g(4) = -8*4 + 4*4 + 7 = -9
So the vertex is at (4, -9).
To go from (0, 0) to (4, -9) we need to move right 4 units and down 9 units, so the correct option is the third one.
If you want to learn more about translations, you can read:
https://brainly.com/question/24850937
A boat travels 336 miles in 22hours (with a constant speed). How far can it travel in 8 hours (with the same speed)?
Answers
Answer:
122.18 miles.
Step-by-step explanation:
336miles/22hours × x miles/8hours
336 × 8 ÷ 8 = 122.18miles
good luck, i hope this helps :)
f(x)=-12x^3-14x^2+6x
Answers
Tom buys 4 tickets for a concert. The total cost is $85,60. How much does he pay
for each ticket?
Answers
Answer:
$21.40 for each ticket
Step-by-step explanation:
Answer:
$21.1
Step-by-step explanation:
Estimate a 15% tip on a dinner bill of $83.53 by first rounding the bill amount to the nearest ten dollars.
Answers
Answer:
the tip amount is $12
Step-by-step explanation:
The computation of the tip amount is shown below:
But before that rounded the dinner bill to the nearest ten dollars i.e. $80
Now the tip amount is
= Dinner bill × tip percentage
= $80 × 15%
= $12
Hence, the tip amount is $12
7.) Which of the following are some of the possible solutions for the inequality?
-9w <-54
A. 6, 7, 8, 9
B. 6,5, 4,3
C.-6, -5, -4,-3
D. -6, -7,-8,-9
Answers
Answer:
A
Step-by-step explanation:
We will solve this inequality by dividing both sides by -9.
Remember, whenever you multiply or divide both sides by a negative number, the sign must be switched.
So we get:
[tex]w>6[/tex]
The only answer that has possible solutions that are greater than 6 is A.
If x = 4 units, y = 8 units, and h = 7 units, find the area of the parallelogram shown above using decomposition. A. 28 square units B. 56 square units C. 84 square units D. 112 square units
Answers
Answer:
a
Step-by-step explanation:
area of parallelogram is equal to base times height 7 * 4
Nora is going to invest $9,600 and leave it in an account for 8 years.
Assuming the interest is compounded continuously, what interest rate,
to the nearest hundredth of a percent, would be required in order for
Nora to end up with $14,400?
Answers
Answer:
The answer is 5.07%, I just did this :)
Use intercepts to graph the linear equation –2x + 6y =18
Answers
Root is (-9,0)
Vertical intercept is (0,3)
Answer:
First, you solve for y, then you graph the equation.
See picture for how to solve for y (aka put in slope intercept form) and graph.
1/3 is the slope and 3 is the y intercept
Step-by-step explanation:
see photos
What's the difference between an opened circle on a number line and a closed circle. ( Pls give an example)
Answers
Answer:
Open circle: used for < (less than) or > (greater than) because the number is not part of the solution.
Closed circle: used for ≥ (greater than or equal to) or ≤ (less than or equal to) because the number is part of the solution.
Shading:
Shade to the right for > or ≥
Shade to the left for < or ≤
Step-by-step explanation:
2 < x < 5
Place a open circle on 2 with shading to the left and a open circle on 5 with shading to the right.
4 ≤ x ≤ 10
Place a closed circle on 4 with shading to the left and a closed circle on 10 with shading to the right.
Simplify completely"""
Answers
Answer:
[tex]\displaystyle \frac{2(x + 2)}{x - 10}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightAlgebra I
Terms/CoefficientsFactoringStep-by-step explanation:
Step 1: Define
[tex]\displaystyle \frac{2x^2 + 20x + 32}{x^2 - 2x - 80}[/tex]
Step 2: Simplify
[Fraction] Factor numerator: [tex]\displaystyle \frac{2(x + 2)(x + 8)}{x^2 - 2x - 80}[/tex][Fraction] Factor denominator: [tex]\displaystyle \frac{2(x + 2)(x + 8)}{(x - 10)(x + 8)}[/tex][Fraction] Divide: [tex]\displaystyle \frac{2(x + 2)}{x - 10}[/tex]An experiment consists of tossing a die and then flipping a coin once if the number on the die is even. If the number on the die is odd, the coin is flipped twice. Using the notation 4HH, for example, to denote the outcome that the die comes up 4 and then the coin comes up heads, and 3HTHT to denote the outcome that the die comes up 3 followed by a head and then a tail on the coin, construct a tree diagram to show the 18 elements of the sample space SS.
For the sample space SS
(a) list the elements corresponding to the event AA that a number less than 3 occurs on the die;
(b) list the elements corresponding to the event BB that two tails occur;
(c) list the elements corresponding to the event A′A ′;
(d) list the elements corresponding to the event A′∩BA ′ ∩B;
(e) list the elements corresponding to the event A∪BA∪B.
Answers
Answer:
Kindly check attached picture for sample space.
Step-by-step explanation:
Sample space, S
S = {1HH, 1HT, 1TT, 1TH, 2H, 2T, 3HH, 3HT, 3TT, 3TH, 4H, 4T, 5HH, 5HT, 5TH, 5TT, 6H, 6T}
The tree diagram for all 18 elements in the sample space can be found in the picture attached below :
a.)
Event A ; number on die < 3
A = {1HH, 1HT, 1TT, 1TH, 2H, 2T}
b.)
Event B ; 2 tails occur :
B = {1TT, 3TT, 5TT}
QUESTIONS B, C and E are not well formatted
the relationship described is linear or expor
Mandy is training for a half marathon.
She runs 4 miles this weekend. For the
next several weeks she plans to increase
her distance by 10% each weekend.
Answers
Answer:
Kasi
Step-by-step explanation:
kasi mapiti itlog ko
Convert 18 inches to feet using the table.
inches
conversion
feet
14 inches convert to feet
Answers
Answer:
18inches = 1.5 ft.
14inches= 1.16667 ft.
Step-by-step explanation:
1inch = 0.0833 ft.
Answer:
18 inches = 1.5ft
14 inches = 1.16ft
Step-by-step explanation:
First, you need to know how many inches are in a foot. Then you take what you have and divide it by that number. So it would be 18/12 or 14/12 and that would give you your answer
translate into algebraic expression four divided by the sum of x and three
Answers
[tex]\frac{4}{x+3}[/tex]
sum is addition
owrite down the name of each of these triangles
Answers
Answer:
sry I don't know.
if someone answer tell me the answer I also want to know : )
Find dy/dx by implicit differentiation.
cot(y) = 9x – 7y
dy/dx = ?
Answers
Answer:
Step-by-step explanation:
I NEED THIS ANSWERED ASAP!!! A bicycle wheel makes five rotations. The bicycle travels 44.48 ft. Find the diameter of the wheel in inches. Use 3.14 for π.
Answers
Please help, at it with these graphs again, thanks in advance.
One car is increasing its speed at a steady rate, while another car is decreasing its speed at a steady rate. The speed (y) over time (x) for the cars is represented by the following system of equations.
(picture of graph)
After _[blank A]_ minutes, both cars were traveling at a speed of _[blank B]_ miles per hour.
Enter your answer as the values that correctly fill in the blanks in the previous sentence, in the correct order, and separated by a comma, like this: 42, 53
Answers
Answer:
5, 45
Step-by-step explanation:
Determine the x-intercept points of the function h(x) = (x – 5)(x – 6).
Question 4 options:
A)
(5,0) and (6,0)
B)
(–5,0) and (–6,0)
C)
(5,0) and (–6,0)
D)
(–5,0) and (–6,0)
Answers
Explanation: trust me bro
classify the triangle by its sides, and then by angles
Answers
Answer:
riangles can be classified by their sides and by their angles. ... If no sides are the same length, then it is a scalene triangle. If two sides are the same length, then it is an isosceles triangle. If all three sides are the same length, then it is an equilateral triangle.
Step-by-step explanation:
How many cubes with side lengths of 1/3 cm does it take to fill the prism
Answers
Answer:
Answer:48 cubes
You could fit 48 cubes with side lengths of 1/3 cm inside a rectangular prism with dimensions of 1 cm X 2 2/3 cm X 2/3 cm.
I hope it's helpful!
A car travels 20 km west of Dasma, and was seen travelling 10km to east after. Calculate the
displacement of the car.
Answers
Answer:
Step-by-step explanation:
It goes 20 km to the west.
Then it turns around
And it goes 10 km west.
The net result is that it is 10 km from the starting point and it is east of Dasma.
20+20+10=50
50km displacement
