Answer:
31
Step-by-step explanation:. you have to dived 19 by 3 and get 6.3 then you multiply 6.3*5 and get 31.
The speed of sound varies depending on many factors including temperature, pressure, and humidity, but it is
typically found to be approximately 550 m/s. What is the frequency of a sound wave with a wavelength of 0.2 m?
Answer: Hope this helps
Step-by-step explanation:The equation for finding the frequency of a sound wave given speed and wavelength is:
Speed = Wavelength * Frequency
Therefore, by algebra;
Frequency = Speed / Wavelenght
The given values are:
speed = 330 m/s
wavelength = 0.1 m
Therefore to solve for frequency:
Frequency = (330 m/s) / 0.1 m = 3.3 kHz
Therefore, the frequency of a sound wave at wavelength equals 0.1 m 3.3 kHz.
Calculate the first and second velocities of the car with three washers attached to the pulley, using the formulas v1 = 0. 25 m / t1, and v2 = 0. 25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0. 25 and the 0. 50 meter marks. Record these velocities, to two decimal places, in Table E. What is the first velocity of the car with three washers at the 0. 25 meter mark? m/s What is the second velocity of the car with three washers at the 0. 50 meter mark? m/s.
The first and second velocities of the car are 0.25/t1 and 0.50/t2 respectively.
Given data:
The value of the first distance is, d1 = 0.25 m.
The value of the second distance is, d2 = 0.50 m.
What is velocity?The ratio of distance covered by an object in a specific direction and the time taken to cover the distance is known as the velocity of the object. Mathematically, the expression for the velocity is,
v = d/t
Here, d is the distance covered.
And t is the average time taken to cover the distance.
Then the first velocity of the car at 0.25 m is,
v1 = d1/t1
v1 = 0.25 / t1
Here, t1 is the average time for the first distance.
And the second velocity of the car with four washers at the 0. 50 m mark is,
v2 = d2/t2
v2 = 0.50 /t2
here, t2 is the average time for the second distance.
Thus, we can conclude that the first and second velocities of the car are 0.25/t1 and 0.50/t2 respectively.
To know more about Velocity click the link given below.
https://brainly.com/question/25796948?
The black square is a dilation of the blue square. What is the scale factor of the dilation?
A) 1/4
B) 1/3
C) 3
D)4
Answer:
D) 4
Step-by-step explanation:
just took the test.
The scale of dilation of the image figure shown is: D. 4.
Scale of DilationScale of dilation = dimension of new figure/dimension of original figure.
Scale factor of dilation = dimension of black square/dimension of blue square
Scale of dilation = 8 units/2 units
Scale of dilation = 4
Therefore, the scale of dilation of the image figure shown is: D. 4.
Learn more about scale of dilation on:
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Please answer me for both problems i need to turn tis trmr
Answer:
Warm Up = C
Step-by-step explanation: to figure out what percepof something is you move the percentage over to spaces and add a decimal, and then you multiply it by what you’re trying to find the percentage of
Brent counted 5 red cards, 10 black cards, and 20 blue cards in a deck of cards. What is the ratio of blue cards to red cards?
Answer:
20:5 - If you're going to simplify it, do 20/5 which is 4/1.
Step-by-step explanation:
NEED TO KNOW THIS QUESTION PLEASE!!!!
Answer:
15 units = h
Step-by-step explanation:
formula to find the volume is:
V = (l·w·h) ÷ 3
675 = (9)(15)h ÷ 3
675 = 135h ÷ 3
multiply each side by 3 to get:
2025 = 135h
2025/135 = h
15 = h
help what is the value of x
2x + 5 = 9
= 9-5 = 4
2x = 4
4/2 = 2
2 = x
Therefore the value of x is 4
If Zendaya is 25 years old and Peter Parker is 18. How much is that in todal
Answer: The ages added is 43 and the age difference is 7 years
find the value of x
degree of angles are
143 2x 152 116 125 140 139 and x
The value of variable, x as required to be determined from the attached image is; 28.33°.
What is the value of variable, x as represented?It follows from the image attached to the task content that the given shape is a 7-sides polygon.
Also, it is noteworthy to know that the sum of interior angles in a polygon is given by the formula; ( n - 2 ) × 180.
where, n = no. of sides of the polygon.
On this note, we have that; for a 7-sided polygon; the sum of interior angles is;
= ( 7 - 2 ) × 180
= 5 × 180
= 900.
Therefore, all interior angles can be summed up so that we have;
x + 139 + 143 + 2x + 152 + 140 + 125 + 116 = 900
3x + 815 = 900
3x = 900 - 815
3x = 85
x = 85 / 3
x = 28.33°.
Ultimately, the value of x as required to be determined is; 28.33°.
Read more on interior angles of a polygon;
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How much of a radioactive kind of nickel will be left after 384 years if you start with 5,472 grams and the half-life is 96 years?
plese help me i am very stuck
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{9\% of 268000}}{\left( \cfrac{9}{100} \right)268000}\implies 24120~\hfill \stackrel{\stackrel{current~value}{268000+24120}}{292120}[/tex]
Answer:
The house's value increased by $24,120. The current value of the house is $292,120
Step-by-step explanation:
First off, we need to multiply the percentage (9%) by the previous value of $268,000. In order to do that, we need to turn the percentage into a decimal. So, 9% → .09
268,000 x .09 = 24,120
Now you can add this number to the previous house value to get your current house value. (Your house increase in value by 24,120)
24,120 + 268,000 = 292,120
pls with step.
plsss.
is anyone solving this?
pls help
Answer:
Step-by-step explanation:
12ab - 10b² - 18a² + 9ab + 12b² + 14a²
= 12ab + 9ab - 10b² + 12b² -18a² + 14a² {Combine like terms}
= (12 + 9)ab + (-10 + 12)b² + (-18 + 14)a²
= 21ab + 2b² - 4a²
ab + 2b² + 3b² - a² = ab + (2+3)b² - a²
= ab + 5b² - a²
Now find the difference
ab + 5b² - a² - [ 21ab + 2b² - 4a²]
= ab + 5b² -a² - 21ab - 2b² + 4a²
= ab - 21ab + 5b² - 2b² - a² + 4a²
= -20ab + 3b² + 3a²
2) 2x³ – 3x² y +2xy²+3y³ - unknown polynomial = x³ -2x² y+3xy²+4y³
2x³ – 3x² y +2xy²+3y³ = x³ -2x² y+3xy²+4y³ + unknown polynomial
2x³ – 3x² y +2xy²+3y³ - [ x³ -2x² y+3xy²+4y³] = unknown polynomial
2x³ – 3x² y +2xy²+3y³ - x³ + 2x² y- 3xy²- 4y³ =
2x³ - x³ -3x²y +2x²y + 2xy² - 3xy² + 3y³ - 4y³=
x³ - x²y - xy² - y³
Answer: x³ - x²y - xy² - y³
Look at the photo I’m about to have to math class i need help! I’ve got 15 mins!
I will also give brainlyest for the big help.
If the raspberries cost $5.00 per pound. How many pounds of raspberries can you buy for $1.00?
Answer:
0 pounds
Step-by-step explanation:
is the relationship linear, exponential, or neither
Answer: exponential
Step-by-step explanation:
The triangles are similar, what is the value of x?
Answer:
x = 16
Step-by-step explanation:
I'm not too sure but what I remember is the small triangle is upscale times 4. so 5x4= 20 3x4=12 and that would mean 4x4 = 16. so x will equal 16.
Rectangle abcd is similar to rectangle pqrs.given that ab=14cm,BC=8cm and pq=21 cm calculate the length of qr
Answer:
12cm
Step-by-step explanation:
similar rectangles means ab/bc = pq/qr
14/8 = 21/x
7/4 = 21/x
x = 21×4/7 = 12cm
Hey im having a hard time understanding input and output and how they correspond with each other
Answer: A relation has an input value which corresponds to an output value. When each input value has one and only one output value, that relation is a function. Functions can be written as ordered pairs, tables, or graphs. The set of input values is called the domain, and the set of output values is called the range.
Step-by-step explanation:
Create two Polynomials that when you subtract them you are left with 3x^2-4x+2
Answer:
[tex]=5x^{2} +2x-4-(2x^{2} +6x-6)\\=5x^{2} +2x-4-2x^{2} -6x+6\\=5x^{2} -2x^{2} +2x-6x-4+6\\=3x^{2} -4x+2[/tex]
Step-by-step explanation:
Hence,5x²+2x-4 and 2x²+6x-6 are the two polynomials.
To create them:
Let,5x²+2x-4 be the first polynomial and x be the another
Now, we have,
→5x²+2x-4-x=3x²-4x+2
→5x²+2x-4-(3x²-4x+2)=x
→5x²+2x-4-3x²+4x-2=x
→x=3x²-4x+2
Direct Variation - Item 2845
Question 2 of 7
Which is an equation of a direct proportion?
CLEAR
CHECK
1
y= x + 6
y=9
y=62-6
y=62
The equation of direct proportion is y = 62x
Direct variation
Two quantities are said to vary directly proportional to each other when an increase in one leads to an increase in the other or a decrease in one leads to a decrease in the other.
Direct variation is given by:
y = kx
where y, x are the variables and k is the constant of proportionality.
The equation of direct proportion is y = 62x
Find out more on Direct variation at: https://brainly.com/question/6499629
solve for X
x/6 - 7 = -4 x/6 - 7 = -4
hope it helps.
URGENT!!!!
So my home work spent quite make sense to me right now. my brain is apparently not working right now!
When “it says make a display (dot plot, box plot, or histogram) of the data set and explain why you chose the type of display to represent this data set.”
What would I need to do on that? It would be great if I could get some step by step instructions on how I should work that out?
(Only needing instructions for question 6, don’t mind the other stuff)
Step-by-step explanation: What they mean is if you were to say put all that data onto a graph, any kind of graph. What graph would you chose, and why? How you would work through this kind of problem, or at least how I would approach it weight out the pros and cons of each graph, or put some data on different graphs and see what works best. On the contrary if you have a rough idea of how each graph would look like you would just chose the one you think conveys the information best. I think they're is a best answer, but no wrong answer, you can make an argument for most graphs if you try, so just chose the one you think is best, and write your reasoning.
Find the measure of angle x in the figure below: (1 point)
15°
25°
30°
60°
Answer:
30°
Step-by-step explanation:
Solve the blank angle for the bottom triangle. The sum of all the angles of a triangle is equal to 180. 75° + 75° = 150°. 180° - 150° = 30°. The missing angle of the bottom triangle is 30°. Angle x is equal to the blank angle of the bottom triangle. Therefore, x = 30°.
I hope this helped and please mark me as brainliest!
i am sorry but how do we give brainlest cause i do not know and i am a beginner and this is not math i just want to give brainlest to the people who answered my question
Brainliest is awarded to an answer when an answerer gives an appropriate and suitable answer to the question and two or more answers have been offered, the best answer can be selected as the Brainliest.
What is Brainly Brainliest?Brainly Brainliest is a mark of quality and a reward for academic excellence. It is not given arbitrarily, but the award is based on an answer meeting a question's requirements excellently., especially after comparison with another answer.
Thus, a questioner awards Brainliest to a question that has been well-answered by more than one answerer.
Learn more about awarding Brainliest at https://brainly.com/question/5838435
Alice works 42 hours, is paid $2.65 per hour, and receives $540.50 in tips. How much did Alice earn?
Answer:
$651.8
Step-by-step explanation:
Alice earns $2.65 per hour
In 42 hours she will earn = 42 * 2.65 = $111.3
Her total tip after 42hours is 540.5
Total money earned is 540.5+111.3 = 651.8
Mutiply 2 by p then subtract q
Step-by-step explanation:
2xp=2p
2p-q
.
this is the answer
mark me brainliest
2*p=2p
2p-q
2p-q is the answer
AC= 15, AB= x+1, BC=2x-1 what is the length for AB
Answer:
d
Step-by-step explanation:
2. PART A: DON’T FORGET TO DETERMINE THE MISSING LENGTHS FIRST!
Find the perimeter:
P = ___
PART B:
Find the total area:
A = ___
Answer:
perimeter = 48 units , area = 76 units²
Formula's used:
Area = length * widthperimeter = 2 ( length + width )Step-by-step explanation:
perimeter = 10 + 14 + (10 - 8) + 8 + 8 + ( 14 - 8 ) = 48 unitsarea = ( 10 * 6 ) + ( 8 * 2 )
= 76 units²
The table represents an exponential function.
What is the multiplicative rate of change of the
function?
Answer:
3/4.
Step-by-step explanation: got it right on edge
A cube has a volume of 64. What is the length of one side of the cube?
Answer:
4
Step-by-step explanation:
The volume of a cube can be represented as s^3 = v, where s = side and v = volume. In this case, we're given the volume as 64, so s^3 = 64. To solve this problem, we first have to know what a cube root is.
What's a cube root?
The cube root of a number is the number you multiply by itself 3 times to get another number.One common cube is 27, and the cube root of it is 3 because 3 x 3 x 3 = 27.Given the information above, let's go in order with the list of cube roots to see which one has a cube of 64.
1: 1 x 1 x 1 = 1. 2: 2 x 2 x 2 = 8. 3: 3 x 3 x 3 = 27.4: 4 x 4 x 4 = 64. (This is the cube root!)We found the cube root of 64, or the side of the cube with a volume of 64. The side of the cube, therefore, is 4.
Have a lovely rest of your day/night, and good luck with your assignments! ♡
