Answer:48.6
we know that
You can paint 75 square feet of a surface every 45 minutes
so
using proportion
Find out how long it takes you to paint a surface area of 81 square feet
45(81)/75=48.6
hope this helped and I hope you get a correct answer :D
Answer:
48.6 minutes
Step-by-step explanation:
First we must identify the area of the given wall :
A = L * W
A = 9 * 9
81 = 9 * 9
[tex]81ft^2[/tex]
Now we know that we can paint 75 square feet every 45 minutes so we must use proportion to find out how long it'll take you.
[tex]\frac{75}{45} *\frac{ft^2}{min}[/tex]
=
[tex]\frac{81}{x}[/tex] [tex]\frac{ft^2}{min}[/tex]
x = 45(81) / 75
x = 3645 / 75
x = 48.6 minutes
You spin the spinner twice. Find the probability of spinning a 2 then a number greater than 2. ( 6 spaces)
Answer:
1/9
Step-by-step explanation:
You take 1/6 times 4/6 which equals 1/9.
Hope that helped! :)
Which of the following is the best estimate of the square root of 300?
A.
a number between 15 and 16
B.
a number between 17 and 18
C.
a number between 19 and 20
D.
a number between 29 and 30
Answer:
D
Step-by-step explanation:
Also hello Harrypotter fan!!!
Answer: between 17 and 18
Step-by-step explanation:
Fun fact , we have a pfp from the same scene:D
A chemist is using 336 milliliters of a solution of acid and water. If 16.4% of the solution is acid, how many milliliters of acid are there? Round your answer to the nearest tenth.
Answer:
Amount of acid = 55.1 mm (Approx)
Step-by-step explanation:
Given:
Amount of solution = 336 mm
Percentage of acid = 16.4%
Find:
Amount of acid
Computation:
Amount of acid = Amount of solution x Percentage of acid
Amount of acid = 336 x 16.4%
Amount of acid = 55.1 mm (Approx)
Choose the equation that represents the line passing through the point (2, - 5) with a slope of −3.
We must determine the y-intercept, b using the slope and point provided.
[tex]-5 = -3(2) + b\\\\-5 = -6 + b\\\\1 = b[/tex]
Now that we know the y-intercept, b, we can create the equation of this line: y = -3x + 1.
NEED HELP ASAP !! PLEASE !!!
Answer:
The domain for A is 0, 1, 2, 3 and the range is 0, 5, 10, 15
and the domain for B is 2, 2, 4, 4 and the range is 4, 3, 2, 1
Only A is a function because for the same input value in B, there is two different output values which is not possible.
Step-by-step explanation:
I just wanna let you know so you don't waste any more points for us, but the domain is the x-values/ input/ stuff on the left of a given point. The range is the y-values, the output, and the stuff on the right side of a given point. So on (1, 7) for example, the 1 would be the domain number and the 7 would be the range number.
The y-axis values are the output/range and the x-axis values are the input/domain.
Hope this helps bro
All of the following expressions are equal except_____. Help!!!!
The graph shows two lines, A and B:
Based on the graph, which statement is correct about the solution to the system of equations for lines A and B?
A. (3, 4) is the solution to both lines A and B.
B. (3, 4) is the solution to line A but not to line B.
C. (0.2) is the solution to both lines A and B.
D. (0, 2) is the solution to line A but not to line B.
Answer:
(3, 4) is the solution to both lines A and B.
Thus, option A is true.
Step-by-step explanation:
As we know that the point of intersection of two lines is the solution of the system of the equations.
From the graph, it is clear that the two lines meet at x=3 and y=4.
It means the point of intersection of the two lines is (3, 4).Hence, (3, 4) is the solution to both lines A and B.
Thus, option A is true.
Which statement is true concerning the vertex and the axis of symmetry of g(x)=5x2−10x? The function written in vertex form is g(x)=5(x−1)2−5. The vertex is at (1, –5) and the axis of symmetry is x=1. The vertex is at (1, –5) and the axis of symmetry is y = 1. The vertex is at (0, 0) and the axis of symmetry is x = 1. The vertex is at (0, 0) and the axis of symmetry is y = 1.
Answer:
A
Step-by-step explanation:
The true statement is, the vertex is (1, -5) and the axis of symmetry is x = 1.
What are Quadratic Functions?Quadratic functions are polynomial functions consisting of variables and exponents and the degree of the variable is 2.
The general form of a quadratic function is f(x) = ax² + b x + c.
Given is a quadratic function,
g(x) = 5x² - 10x
The function written in vertex form is,
g(x) = 5(x - 1)² - 5
Vertex form of a quadratic equation is,
y = a(x - h)² + k, where (h, k) is the vertex.
Here vertex = (h, k) = (1, -5)
Axis of symmetry = -b/2a = -(-10)/10 = 1
Axis of symmetry is, x = 1
Hence the correct option is A.
Learn more about Quadratic Function here :
https://brainly.com/question/13921516
#SPJ7
Is this relation a function? Explain.
Answer:
No
Step-by-step explanation:
3 and 4 cannot both equal A since 3 doesn't =4
Answer:
yes if the numbers are the x variable, no if the numbers are y variable
Step-by-step explanation:
Standing on the edge of a cliff, Fernando throws a rock upward from a height 512 feet above the water at a speed of 64 feet per second. How long will it take for the rock to land in the water?
Answer: 7.6875 seconds.
Step-by-step explanation:
Let's writhe the motion equations for the rock.
The only force acting on the rock will be the gravitational force, then the acceleration of the rock will be the gravitational acceleration g ≈ 32 ft/s^2
A(t) = -32ft/s^2
Where we have a negative sign because this acceleration pulls the rock downwards.
For the velocity, we must integrate over time, and the constant of integration will be equal to the initial velocity of the rock = 64 ft/s, then the velocity equation is:
V(t) = (-32ft/s^2)*t + 64m/s
For the position, we integrate again over time, and this time the constant of integration will be the initial position, 512ft (Then the water level is at 0 ft)
P(t) = (1/2)*(-32ft/s^2)*t^2 + 64m/s*t + 512 ft
Now we want to find the value of t, the time, such that the rock hits the water.
The rock will land in the water when P(t) = 0ft, becuse we defined the zero in the position as the water.
Then we must solve:
P(t) = 0ft = (1/2)*(-32ft/s^2)*t^2 + 64m/s*t + 512 ft
for t, let's solve this:
0ft = (-16ft/s^2)*t^2 + 64m/s*t + 512 ft
This is a quadratic equation. the two solutions can be found by using the Bhaskara equation, then the solutions will be:
[tex]t = \frac{ -64ft/s +- \sqrt{(64ft/s)^2 - 4*(-16ft/s^2)*512ft} }{2*(-16ft/s^2)} = \frac{-64ft/s +- 192ft/s}{-32ft/s}[/tex]
Then the two solutions are:
t = (-64ft/s + 192ft/s)/(-32ft/s^2) = -4s (This time is negative, which is no really defined for this problem, so we can discard this solution)
The other solution is:
t = (-64ft/s - 192ft/s)/(-32ft/s^2) = 7.6875 s
This solution makes sense with the problem, then the answer is 7.6875 seconds.
Please help me with this question! :)
Will mark brainliest
Answer:
10
Step-by-step explanation:
y = 3(5) - 5 multiply 3 and 5
y = 15 - 5 subtract 5 from 15
y = 10 10 is the output
hope this helps!
Which value for k makes the equation 42 ÷ k = 14 true
Answer:
k=3
Step-by-step explanation:
Help PLZ Kinda been confused
9514 1404 393
Answer:
use the transitive property and the congruence of vertical angles
Step-by-step explanation:
First of all, look at the figure and the given information, and see how that relates to the question being asked.
Here, you're given several angles between the lines of interest, all of which are congruent, and you're asked to show the lines are parallel. Two of the given angles (1 and 4) are "alternate interior angles", so the theorem relating those to parallel lines is useful.
Statement . . . . Reason
1. ∠1 ≅ ∠2, ∠3 ≅ ∠4 . . . . 1. Given
2. ∠2 ≅ ∠3 . . . . 2. Vertical angles are congruent
3. ∠1 ≅ ∠3 . . . . 3. transitive property of congruence*
4. ∠1 ≅ ∠4 . . . . 4. transitive property of congruence
5. k ║ l . . . . 5. Converse of alternate interior angles theorem**
_____
* The transitive property tells you if a ≅ b and b ≅ c, then a ≅ c.
** The alternate interior angles theorem says the alternate interior angles at a transversal crossing parallel lines are congruent. The converse says if those angles are congruent, then the lines are parallel.
H E L P I’M SO CONFUSED !!!
Answer: 20/3 = 40/6. These two fractions are known as equivalent fractions. Hope this helps ya.
Answer:
40
Step-by-step explanation:
20/3=40/6 the answer for the second fraction is just double the first fraction so your answer is c) 40
Factor each polynomial
4z^2+4z-15
Answer:
(2z + 5)(2z - 3)
Step-by-step explanation:
4z² + 4z - 15
4z² + 10z - 6z - 15
2z (2z + 5) - 3 (2z + 5)
(2z + 5)(2z - 3)
Answer:
(2z+5) (2z-3)
Step-by-step explanation:
First, multiply the first coefficient by the third.
4*-15=-60
Then find factors of -60 that add up to the middle term.
The factors are: -6 and 10-------> -6*10=-60 and -6+10=4 so -6 and 10 are the correct factors.
Break up the middle term with the factors that you got above. The new equation will be: 4[tex]z^{2}[/tex]-6z+10z-15
Factor by grouping.
First, break the equation into two
(4[tex]z^{2}[/tex]-6z) (10z-15)
Then, factor out the greatest number you can
2z(2z-3) 5(2z-3)
You are then left with a common binomial of 2z-3. COmbine the common binomial into 1 and combine the 2 numbers you factored out in the step above (2z and 5) The final equation will be this:
(2z+5) (2z-3)
Solve the inequality
Answer:
16(1/4x-1/2)>24-2x
Use the distributive property on the left side:
4x -8 > 24-2x
Add 2x to each side:
6x -8 > 24
Add 8 to each side:
6x >32
Divide both sides by 6:
x > 32/6 reduces to 16/3
If this is helpful plz mark brainliest
PLEASE HELP!!!!!!!!!
Answer:
The scale factor is 1/2 or .5
Step-by-step explanation:
Triangle XYZ scales down by 1/2 to form the new XYZ triangle
For example: on the left side, X is (6,4) and on the right side, X is (3,2)... it's cut in half meaning the scale factor is 1/2 or .5
Hopefully this isn't confusing and it helps... :)
1. At the beginning of the year, Maria had $100 in her savings account. She plans to spend $10 a
month on a music app. By the end of January, she will have $90, 580 by the end of February,
$70 by the end of March, and so on. Write an equation that describes the amount in her savings
at any given month. Be sure to describe what your variables represent.
Which relation is a function? Select all that apply
{(5,1), (4,1), (3, 1), (2,1)}
{(5,3). (4,1), (3, 2), (2,0)}
{(5,2), (2,5), (5. 3), (3,5)}
{(5,5). (4,4), (3, 3), (2,2}
{(5,1), (5,2), (5, 3), (5.4)}
Answer:
These are the correct answers:
10y + 12 - 7y - 8 - 3y = ?
Answer:
The answer is 4 :)
Step-by-step explanation:
Emily wanted to make shish kabobs for a barbecue she was having for her swim party. The bag she purchased from the grocery store contained a total of 75 shrimp. Emily noticed that she had a dozen skewers to utilize. Emily claims that she will be able to include 5 shrimp on each skewer and have a total of 15 left over. Explain why we can quickly see Emily made a mistake just by looking at the number of shrimp she had left over. Please use proper vocabulary in your explanation. As part of your explanation please be sure to tell me how many shrimp can fit on each skewer and if there are any left over.
Answer:
Emily's claim is correct that with 12 skewers which can hold 5 shrimp each, there will be 15 leftovers.
Step-by-step explanation:
Given that:
Total number of shrimp contained in the bag of Emily = 75
Number of skewers available = A dozen
A dozen means 12.
Therefore, there are 12 number of skewers available.
Each skewer can have = 5 number of shrimp
Total number of shrimp on the 12 skewers = 12 [tex]\times[/tex] 5 = 60
Total number of leftover = Total number of shrimp in the bag - Total number of shrimp on the 12 skewers = 75 - 60 = 15
Therefore, Emily's claim is correct that with 12 skewers which can hold 5 shrimp each, there will be 15 leftovers.
What is the sum of the exterior angles of a polygon that has 159 sides
Answer:
k
Step-by-step explanation:
yes u smart
Marisa wants to buy a home in Atlanta with a 30-year mortgage that has an annual interest rate of 4.9%. The house she wants is $250,000 and she will make a $55,000 down payment and borrow the remainder. What is Marisa's monthly mortgage payment to the nearest dollar?
Given :
Marisa wants to buy a home in Atlanta with a 30-year mortgage that has an annual interest rate of 4.9%.
The house she wants is $250,000 and she will make a $55,000 down payment and borrow the remainder.
To Find :
What is Marisa's monthly mortgage payment to the nearest dollar.
Solution :
Money remains, m = $( 250000 - 55000 ) = $195000 .
Total price after interest, T = m( 1 + rt )
T = 195000×( 1 + 0.049×1)
T = $204555
Monthly payment,
[tex]M = \dfrac{m}{12}\\\\M = \dfrac{204555}{12}\\\\M =\$ 17046.25[/tex]
Therefore, monthly payment is $17046.25 .
Hence, this is the required solution.
the scale on a map is 1:10 000
a) two towns are 17km apart
how far apart would the be on the map?
give your answers in centimeters.
b) the viewpoint and the pier are 7.1cm apart on the map.
how far apart would they be in real life?
give your answers in kilometers.
In 1990 Dallas, Texas, had an estimated population of 1,006,877. By 2000 the population had increased. 18 1/20%. What was the estimated population in 2000 for Dallas, Texas? Find the answer to the nearest whole number
The bakers at healthy bakery can make 330 bagels in 5 hours. How many bagels can they bake in 13 hours? what was that rate per hour
I'm analyzing a song for an assignment and I need a appropriate song to use, something popular. any suggestions? ( comment if full)
Answer:
id recommend any song by brent faiyaz or lost boy by ruth b because it has a little more meaning orrrr the bigger picture by lil baby (thats a good one :)) orrrr girl of my dreams by rod wave orrrr almost is never enough by ariana grande
24−(−37) please help me
Answer:
24−(−37) = 61
Step-by-step explanation:
Which transformation would accomplish this?
A translation 3 units left and 2 units up
A translation 3 units right and 2 units down
A translation 2 units left and 3 units up
A translation 2 units right and 3 units down
Answer:
If it is from figure O to figure P, it is a translation 3 units right and 2 units down
If it is from figure P to figure O, it is a translation 3 units left and 2 units up
Step-by-step explanation:
Write the equation of the line in slope intercept form, with slope of 4 and that passes through
(2,6). *
can you answer 7 too ?
Answer: Whats your snap i think I'm simping :)
Step-by-step explanation:
Answer:
answers are in the picture