Answer:
10.7 m
Step-by-step explanation:
Given that,
The speed of a sound wave, v = 6,420 m/s
The frequency of the wave, f = 600 Hz
We need to find the wavelength of the wave. We can find it using the below relation as follows :
[tex]v=f\lambda\\\\\lambda=\dfrac{v}{f}\\\\\lambda=\dfrac{6420}{600}\\\\\lambda=10.7\ m[/tex]
So, the wavelength of the sound wave is equal to 10.7 m.
Compare the properties of the function f(x) = 2x2 + 4x + 5 to the function given by the table. Which statements are correct?
Answer:B, C, D
Step-by-step explanation:
I did the USATESTPREP
Jayden invests money in an account paying a simple interest of 7.6% per year. If he
invests $100 and no morley will be added or removed from the investment, how
much will he have in one year, in dollars and cents?
Answer:
$107.60
Step-by-step explanation:
100 [1 + (0.076 * 1)] = 107.6
= $107.60
Solve for . 3 = 8x - 5 (3x + 5)
Answer:
x= -4
Step-by-step explanation:
3=8x-5(3x+5)
distribute
3=8x-15x-25
combime like factors
28= -7x
divide 28/ -7
x= -4
Which expression is equivalent to 4c + 7 -2C - 3?
a. 2c + 4
b. 2c + 10
C. 6C +4
d. 60 + 10
I NEED HELP ON THIS QUESTION
Step-by-step explanation:
b=4, so
7²+4²=c²
49+16=c²
65=c²
Sq root both sides
8.06=c
If f(x) = 3^(x + 4), find f(2).
Answer:
18
Step-by-step explanation:
Solve the equation. 36^6x-1 = 6^5x
The solution of the equation 36⁶x - 1 = 6⁵x is x = 1/2176774560.
What is an equation?Two algebraic expressions having same value and symbol '=' in between are called as an equation.
We have the equation:
36⁶x - 1 = 6⁵x
Simplifying,
(6²)⁶x - 1 = 6⁵x
6¹²x - 6⁵x = 1
2176782336x - 7776x = 1
x = 1/2176774560
The above equation is the required solution.
Therefore, the required value is x = 1/2176774560.
To learn more about the equation;
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help me out here? (check the attached image if you're somewhat good at geometry)
Answer:
14
Step-by-step explanation:
you just look at how much everything equals and that it is adding by 2
PWEASE HELP ME, AREA OF A CIRCLE
Answer:
Step-by-step explanation:
A= πr2 = π·72 ≈153.93804
Step-by-step explanation:
The formula for an area of a circle is: π[tex]r^{2}[/tex]
In this instance you are using 3.14 for pi.
3.14 ([tex]7^{2}[/tex])= 153.86
Area= 153.86[tex]ft^{2}[/tex]
help me plzz pleased
Answer:
jeez, one lazy person must you be if you dont have time to finish this xD
answer is 181
Step-by-step explanation:
well first divide the two objects, a triangle, and a rectangle. Now we have no idea what the bottom of the triangle is so lets calculate that. 18 - 2 -5 = 11
so the triangles dimesions are a10, b11. Now we have to implement the pythagorem theroem since it doesnt give us the side "c". its a simple a^2+b^2=c^2. so side "c" is 14.866. now we can calculate and add everything together. so 18*7=126. and the triangles area is 55. so add 126+55 and viola. you get 181. Im a bit skeptical that i got something wrong but i hope its all correct. hope this helps!
Correct answer will be brainliest
Answer:
Quadrilateral ABCD is a rhombus, because all four sides are congruent and adjacent sides are not perpendicular .
Step-by-step explanation:
Given :
A quadrilateral with its coordinates as follows:
Where A (3, 1), B (4,4), C (7,5), D (6,2).
We will measure the length of the congruent sides by applying distance formula.
Distance formula = square root (x^2 - x^1)^2 + (y^2 - y^1)^2
So,
AB = ( insert the coordinates using the formula )
BC = ( insert the coordinates using the formula )
CD = ( insert the coordinates using the formula )
DA = ( insert the coordinates using the formula )
It all equals = squareroot 10
From the above measurement and looking into the diagram we can conclude that the Quadrilateral ABCD is a rhombus.
In rhombus the adjacent sides are not perpendicular and its diagonals are of different length.
2) What is the measure of
Answer:
I thought it is 44 since ACB is 88 and it is a central angle with respect to the arc AB while ADB is inscribed angle then it is 1/2 of arc AB then it is 1/2 of 88 which is 44
Round 771 to the nearest hundred
Answer:
800
Step-by-step explanation:
700________________750___________771________800
771 is over 750 so it would be rounded to 800
Answer: 800
Step-by-step explanation:
771 is 50+ thus it round over to 800.
Which statement Is always true?
The sum of two Irrational numbers is rational.
The product of a rational and irrational number is rational.
The sum of two rational numbers is irrational.
The product of two rational numbers is rationall
Answer:
D) The product of two rational numbers is rational.
Solve the inequality. 2 < 6 - 3r and graph the solution
the answer is 3 because you subtract 6 - 3 = 3r
GEOMETRY HELP PLEASE!! WILL MARK BRAINLEIST!
4
Given:
PQRS is a rectangle.
X is the midpoint of SR.
To find:
The measure of QX.
Solution:
It is given that X is the midpoint of SR. Draw a perpendicular on PQ from point X as shown in the below figure.
Now, the line XY divides the rectangle PQRS into two equal squares of sides 4 units.
The diagonal of a square is:
[tex]d=a\sqrt{2}[/tex]
Where, a is the side length of the square.
QX is the diagonal of the square whose side length is 4 units. So, the length of QX is:
[tex]d=4\sqrt{2}[/tex]
[tex]d=5.656854[/tex]
[tex]d\approx 5.7[/tex]
Therefore, the measure of segment QX is about 5.7 units.
What is the solution set of the quadratic inequality x^2+x-2 ≥ 0
{x| x ≤ -2 or x ≥ 1}
{x| x ≤ -1 or x ≥ 2}
{x| x ≥ -2 or x ≤ 1}
{x| x ≥ -1 or x ≤ 2}
A plane travels a distance of 21,000 kn in a time of 3.2 hours what is its average speed rounded to the nearest whole number
Answer:
6563kmph
Step-by-step explanation:
take 21,000 divided by 3.2 hours to get the speed
21,000/3.2 = 6562.5
It says to round 6562.5 to the nearest whole number so its 6563
MY FRIEND NEEDS THIS RN (40points) PLEASE AND TYY
Answer:
(2,2)
Step-by-step explanation:
Tom bought a soft drink for 3 dollars and 8 candy bars. He spent a total of 19 dollars. How much did each candy bar cost?
Answer: 19-3= 16. 16/8= 2. each candy bar cost 2 dollars
Step-by-step explanation:
Which choice is equivalent to the expression below?
6 + 18 +3 15-323
A. 5/5
B. 345 + 6
C. 513 - 6
D. 215 - 24
which is not equivalent to 24y-12
Answer:
what are the answer choices
Step-by-step explanation:
The linear expression 24y - 12 is not equivalent to the expression 2(12y - 12) option (A) 2(12y - 12) is correct.
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
The question is incomplete.
The complete question is in the picture, please refer to the attached picture.
We have a linear expression:
= 24y - 12
From the above linear expression take 2 as a common factor:
= 2(12y - 6)
Take 2 as common factor again:
= 2(2)(6y - 3)
= 4(6y - 3)
Now, take 3 as a common factors:
= 12(2y - 1)
The expression 24y - 12 is equivalent to the expressions 2(12y - 6), 4(6y - 3), and 12(2y - 1).
Thus, the linear expression 24y - 12 is not equivalent to the expression 2(12y - 12) option (A) 2(12y - 12) is correct.
Learn more about the expression here:
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"la temperatura mas baja conocida en la tierra es de 273° bajo cero mientras que la temperatura promedio de la superficie de la tierra es de 37 calcula la variacion de la temperatura"
Answer:
Variación de temperatura: 310°C
Step-by-step explanation:
La variación de temperatura entre la temperatura más baja conocida en la tierra (-273°C = 273° bajo cero) y la temperatura promedio de la tierra (37°C) será el valor absoluto de la diferencia de estos dos valores, es decir:
Variación de temperatura: |-273°C - 37°C|
Variación de temperatura: |-310°C|
Como el valor absoluto de un número negativo es su valor positivo (|-x| = x)
Variación de temperatura: 310°CFind the measure of the central angle of the circle if the Area of the sector is 120 square cm. and the radius is 6 cm.
a . ) 135
b . ) 120
c . ) 105
d . ) 85
explanations would be super
appreciated too
Thank you to anyone who helps
Answer:
x=16 or 23.32381
Step-by-step explanation:
Find Thin Mints in radians
Need help with math homework
Answer:
a) Thin mints = 1.885 radians
b) Savannah smiles cookies = 0.332 radians
Step-by-step explanation:
To convert an angle from degree to radians, the formula is given as :
x ° × π/180 = radians
Where x = angle to be converted
From the diagram we are to convert Thin mints and Savannah cookies to radians
a) Thin mints = 108°
Converting to radians
= 108° × π/180
= 1.8849555922 radians
Approximately = 1.885 radians
b) Savannah smiles cookies = 19°
Converting to radians
= 19° × π/180
= 0.331613 radians
Approximately = 0.332 radians
What is the area of the parallelogram?
4 cmi
5 cm
9 cm
18 cm2
28 cm?
36 cm2
0 45 cm2
Answer:
36 cm2
Step-by-step explanation:
Answer:
36cm² your welcome
Please help, I've been stuck on this question for an hour!
Answer:
18 inches
Step-by-step explanation:
find the product of 10.2 and 6.3
Answer:
10.2*6.3=64.26
Step-by-step explanation:
Solve 102*63, then move the decimal point two numbers from the right:
Since 102*63=6426, then moving the decimal point two numbers from the right will mean 10.2*6.3=64.26
Answer:
64.26
Step-by-step explanation:
This is a simple multiplication
When you 'multiply' or 'times' even a product of a number you add it to itself a number of times, for this problem, 10.2 multiplied by 6.3 is the same as saying 10.2 + 10.2 + 10.2 = 64.26. Multiplication is therefore a quicker way of adding the same number many times, for example, 10.2 × 6.3 = 64.26. Therefore, the product of 10.2 and 6.3 is 64.26.
State if the triangles in each pair are similar. If so, state how you know they are similar
A.They are similar by the AA rule
B.They are not similar
C.They are similar by the SSS rule
Answer: C. They are similar by the SSS rule
Step-by-step explanation:
There are three ways to prove triangle similar
AA similar theorem--Two corresponding angles in two triangles are the congruentSAS similar theorem--Two corresponding pairs of sides of two triangles are proportional, and the angle in between two sides are congruentSSS similar theorem--All corresponding sides of two triangles are proportional--------------------------------------------------------------------------------
Here, we see in the figures, the side lengths are given, and there are no angles. So, supposedly, we are going to use SSS similar theorem.
Solve
MN corresponds to UV
ML corresponds to UT
LN corresponds to TV
MN/UV=24/8=3
ML/UT=33/11=3
LN/TV=42/14=3
∴MN/UV=ML/UT=LN/TV
∴They are similar
Hope this helps!! :)
Please let me know if you have any questions