Recall that the volume of a sphere is given by the formula V = 4/3pi to the 3rd
1. Here is a sphere with radius 4 feet. What is the volume of the sphere? Express your answer in
terms of pi.
2. A spherical balloon has a diameter of 4 feet. Approximate how many cubic feet of air this
balloon holds. Use 3.14 as an approximation for it, and give a numerical answer
Answers
9514 1404 393
Answer:
1. (256/3)π ft³
2. 33.49 ft³
Step-by-step explanation:
1. Put 4 ft into the formula where r is, then simplify.
V = (4/3)π(4 ft)³ = (256/3)π ft³
__
2. The radius is half the diameter, so is 2 ft. Put that in the formula, along with the value for π, and do the arithmetic.
V = (4/3)(3.14)(2 ft)³ ≈ 33.49 ft³
Related Questions
Dan spent a total of $25 at the grocery store. Of this amount, he spent 14 on fruit. What percentage of the total did he spend on fruit?
Answers
Answer:
56%
Step-by-step explanation:
This is because the question you need to ask yourself is: 14 is what percent of 25? and the way you solve that is making it 14/25 and then all percents are out of 100 so you need to change the fraction to over 100 so just multiply by 4 (because 25 x 4 is 100) and you get 56/100, which means 56%.
Find the zeros of fhe function. Enter the solutions from least to greatest. f(x)=(x-2)^2-9
HELP!!!
Answers
Answer:
5, -1
Step-by-step explanation:
set the given equation equal to 0.
add 9 to both sides
take the square root of both sides and remove the exponent on left side.
x-2 = +3
x-2= -3
solve for x (for each equation)
x= 5, x= -1
At the Denver International Airport, planes must clear a mountain that is 1000 feet tall that is a horizontal distance of 2800 feet away. At what angle of elevation must the plane take off in order to safely clear the mountain ? Round your answer to the nearest WHOLE degree.
PLEASE i need help
Answers
Answer:
19 degrees
Step-by-step explanation:
Will have a triangle with horizontal distance being 2800, and vertical being 1000 feet. Angle between the horizontal and hypotenuse is what we are looking for.
Thus it's a tangent function.
SOH
CAH
TOA <-----
Tangent is the opposite / adjacent
So we will be looking at doing an Arctan to find the angle.
Arctan α = [tex]\frac{1000}{2800}[/tex] = 19.29 degrees. Round to the nearest whole degree would be 19 degrees due to being less than .50
Your answer is 19 degrees
-4n = 16 plssssssssssssssssssss help
Answers
Answer:
n would be -4
Step-by-step explanation:
(two negatives multiplied together make a positive)
-4n = 16
/-4 /-4
n = -4
Evaluate the following expression, when x=-2
2x^2+4x-3
A) 3
B) 3
C) -19
D) 9
Answers
Answer:
-3
explanation;..!!^=^Answer:
Sana makatulog po Ito sa inyo.
HELP ME!!!! PLZ!!!!
The determinants of the minors of the first-row entries are _____ .
11, -20, 23
11, -16, 26
13, -20, 23
13, -16, 26
The determinants of the minors of the second-row entries are______ .
-21, 5, -24
-21, 7, -28
-18, 7, -28
-18, 5, -24
The determinants of the minors of the third-row entries are_______ .
4, 9, -14
4, 8, -12
6, 8, -12
6, 9, -14
Answers
Answer:
The picture below. (11, -20, 23) , (-21, 5, -24), (6,9,-14)
Simplify (use only positive exponents) : (3y^10)(2y^2)/8y^5
please explain how you did it so that I can understand what I'm doing <3
Answers
So;
(3y^10)(2y^2) is equal to (3)(2)(y^10+2).
6y^12/8y^5
When dividing exponents, you do the opposite and subtract the exponents. And you divide the whole number by half.
6y^12/8y^5 = 3y^7/4
of equations to answer the questions.
2x + 3y = 3
y = 8 - 3x
The value of y from the second equation is substituted back into the first equation. What is the resulting eq
What is the value of x?
What is the value of y?
Da
Answers
2x + 24 -9x = 3
-7x = -21
x = 3
y = 8 - 3x
y = 8 - 3(3)
y = 8-9
y = -1
Check the math:
2(3) + 3(-1) = 6 - 3 = 3
Can you please help me on question 14?!
Answers
Answer:
B) 9
Step-by-step explanation:
15 minutes = 3 miles
15x3 = 45
3x3=9
how do you know how many solutions are possible for a system of equations
Answers
Answer:
Step-by-step explanation:
If the slopes are the same but the y-intercepts are different, the system has no solution.
If the slopes are different, the system has one solution.
If the slopes are the same and the y-intercepts are the same, the system has infinitely many solutions.
Answer:
Step-by-step explanation:
If you mean linear systems. If lines have a different slope there will be one solution. If they have the same slope (parallel) and a different y intercept there are zero solutions. If they have same slope and y intercept than they are the same line and have an infinite number of solutions.
1) Sam bought a soft drink for 4 dollars and 7 candy bars. He spent a total of 39 dollars. How much did each candy bar cost ?
Answers
39 - 4 = 35
35/7 = 5
Each candy bar cost $5. (Jeez, that’s expensive)
Hope it helped
The radius of a circular swimming pool is 4.5 meters. What is the circumference of this
swimming pool? Use 3.14 for Pi.
Answers
Answer:
28.26
Step-by-step explanation:
Answer:
28.26
Step-by-step explanation:
4.5×3.14=14.13×2=28.26
Mother shared 60 sweets among her 2 daughters in the ratio 2:3. If Janice gets 20, how many do Kayla gets?
Answers
Answer:
40
Step-by-step explanation:
Because if janice getd 20 and kayla also 40 gets Sweets among
ava bout 5.5 pounds of beef at kroger. He paid 13.75 at the register. How much did the beef cost per poun
Answers
Answer:
The answer is 1.5
Step-by-step explanation:
Answer: 40 cents per pound
Step-by-step explanation:
Divide 5.5/13.75
The sum of eight and a number, x, is four.
Answers
Answer:
-4
Step-by-step explanation:
Mike bakes 24 cookies for some friends. He gives the same number of cookies to 2 friends. How many cookies c does each friend receive? Write an equation to represent the number of cookies each friend receives.
Answers
Answer:
12 cookies for both friends (assuming you don't get any)
Step-by-step explanation:
24/2=12
since you seem like a kid, that slash means divided by
Can someone please simplify this for me?
Answers
Answer:
3x√7y
Step-by-step explanation:
The speed time graph shows the motion of toboggan as it descends a hill. Determine the acceleration of the toboggan between,
a) a and b
b) b and c
c) c and d
Answers
Answer:
B (B AND C)
Step-by-step explanation:
BECAUSE THE POINT B IS HIGH ND I SUPPOSE THAT IT IS SPEED.
What is the sum of 4 1/2 + 5 1/2?
Answers
Answer:
10
Step-by-step explanation:
5 + 4 = 9 and 1/2 + 1/2 = 1 whole so 9 + 1 = 10
Choose >, <, or = to compare each pair of numbers
0.842 _____ 0.824
Answers
Answer:
>
Step-by-step explanation:
Here's a trick when compareing fractions: turn them into percents then try it from there Hth!!
Which equation represents a line which is parallel to the line
6x + 7y = –49?
Answers
Answer: y= 7/6x-5
Step-by-step explanation:
The equations of parallel lines have the same slope or rates.
The equation of the line parallel to [tex]\mathbf{6x + 7y = -49}[/tex] is [tex]\mathbf{y = -\frac 67(x - x_1) + y_1}[/tex]
The equation is given as:
[tex]\mathbf{6x + 7y = -49}[/tex]
Make 7y the subject
[tex]\mathbf{7y = -6x-49}[/tex]
Make y the subject
[tex]\mathbf{y = -\frac{6}{7}x -7}[/tex]
A linear equation is represented as:
[tex]\mathbf{y =mx + b}[/tex]
Where m represents the slope.
So, we have:
[tex]\mathbf{m = -\frac 67}[/tex]
Parallel lines have the same slope.
So, the slope of the line is [tex]\mathbf{m = -\frac 67}[/tex]
The equation is then calculated as:
[tex]\mathbf{y = m(x - x_1) + y_1}[/tex]
Substitute [tex]\mathbf{m = -\frac 67}[/tex]
[tex]\mathbf{y = -\frac 67(x - x_1) + y_1}[/tex]
Hence, the equation of the line parallel to [tex]\mathbf{6x + 7y = -49}[/tex] is [tex]\mathbf{y = -\frac 67(x - x_1) + y_1}[/tex]
Read more about parallel lines at:
https://brainly.com/question/402319
166. Запишите все целые числа, расположенные на координатной прямой между числами:
Answers
Answer:
Don’t speak that language sorry maybe translate into English?
The dry cleaning fee for three pairs of pants is $18. How much will it cost to clean 11 pairs of pants?
Answers
$18/3=6
$6 per one pair of pants
6 times 11= 66
$66
Hope this helps! Have a great day :)
Solve for P in the expression below
5=5(p-2)
Answers
Answer:
3=p
Step-by-step explanation:
5=5(p-2)
5=5p-10
5+10=5p-10+10
15=5p
15/5=5p/5
3=p
задания.
Расставь дроби в порядке убывания:
10/16 1/16 15/ 5/16 8/16
Ответить!
Answers
Answer:
sorry pls ask us by english language i cant help u by this language sorry
but if the question is circling the smallest no. 1/16 is the smallest and 15/16 is the biggest no
What are the factors for 25?
If you answer thanks for helping!
Answers
Answer:
one and twenty-five and five
if u do one times twenty-five and then five times five
1, 5, 25
The factors are all the numbers that could be used to multiply together to equal 25. 1×25=25, and 5×5=25.
2x – 7y = -14
Write the equation in slope- intercept form
Answers
Answer:
y= 2/7x +2
Step-by-step explanation:
y = 2/7x + 2 is the slope intercept form of the equation.
Writing equation of a line in slope intercept formGiven the equation below;
2x – 7y = -14
The slope intercept form of a line is expressed as:
y = mx + b
m is the slope
b is the intercept
2x – 7y = -14
-7y = -2x - 14
7y = 2x + 14
y = 2/7x + 2
Hence the equation in slope- intercept form is y = 2/7x + 2.
Learn more on slope intercept form here: https://brainly.com/question/1884491
#SPJ2
which best explain |-4|=4
Answers
Answer:
your finding the absolute value, I I this means absolute value which means if its negative it automatically is its own number you get rid of the negative sign if it's positive just keep it because it's already in it's normal number.
For example: I -4 I = 4
For example: I -5 I = 5
For example: I 3/4 I = 3/4
For example: I 3 I = 3
For example: I 4 I = 4
Does this expression represent the sum 13.76 + 2.8?
1 ten + 6 ones + 5 tenths + 6 hundredths
Answers
Answer:
True
Step-by-step explanation:
it all equals the same
Answer:
yes
Step-by-step explanation:
yes
HELP QUICK EASY Pi WORK PLEASE HELP QUICK
Answers
Answer:
3.998 km?
not exactly sure but good luck
Step-by-step explanation: