Answer:
v = 350 m/s
Step-by-step explanation:
Given that,
Frequency of sound waves of a mosquito beating, f = 700 Hz
Wavelength, [tex]\lambda=0.5\ m[/tex]
The speed of a wave is given by the formula as follows :
[tex]v=f\lambda\\\\v=700\ Hz\times 0.5\ m\\\\v=350\ m/s[/tex]
So, the sound waves of the beating mosquito wings traveling at speed of 350 m/s.
Jackie is purchasing a $200 coat at 15% off. There is a $5.00 shipping charge to have the item
shipped to her house. What is the final cost of the coat?
PLZZZZ I NEED THISS
Answer:
175$
Step-by-step explanation:
200$ at 15% = 170
170$ + 5.00$ = 175$
The Hu family goes out for lunch, and the price of the meal is $42. The sales tax on the meal is 7%, and the
family also leaves a 20% tip on the pre-tax amount. What is the total cost of the meal?
PLEASE HELP QUICKLY AS POSSIBLE THANK YOU :)
Answer:
Where they live. Lets assume they have no clue on what so ever based on who you are. They don't know your address. So based on from them, they will have a better perspective in terms of THEM
Step-by-step explanation:
answer explains
The bill for fixing a car was $436. The parts cost $176 and the repair center charged
$52 per hour. How many hours did it take to fix the car?
Answer:
5 hours
Step-by-step explanation:
The bill for fixing the car is $436
The parts cost $176
The repair center charged $52 per hour
Therefore the hours that it took to fix the car can be calculated as follows
= $436-$176
= $260/52
= 5 hours
Hence it will take 5 hours to fix the car
Noah has a 12 ounce energy drink. He drinks 5 ounces. Enter the percentage of ounces Noah has left of his energy drink. Round your answer to the nearest hundredth.
Answer:
58% left
Step-by-step explanation:
He drinks 5oz.
12-5 = 7oz (which is how much he has left)
7 / 12 = 0.58333 -> 58%
Three less than a number is greater than -4 and less than -1
Answer:
Step-by-step explanation:
-5
please help and thank you
Answer:
=
Step-by-step explanation:
Answer:
=
Step-by-step explanation:
the square root of 169 is 13
Mr.Cunningham built himself an ice rink that is 14 and 2/5 meters long and 6 and 7/8 meters wide. What is the area of the ice rink Mr.Cunningham built?
Answer: 99 sq., meters.
Step-by-step explanation:
Given: For ice rink, Length = [tex]14\dfrac25\text{meters}=\dfrac{14\times5+2}{5}=\dfrac{72}{5}\text{meters}[/tex]
Width = [tex]6\dfrac78\text{meters}=\dfrac{8\times6+7}{8}=\dfrac{55}{8}\text{meters}[/tex]
Now, Area of ice rink = length x width
[tex]=\dfrac{72}{5}\times\dfrac{55}{8}=\dfrac{9}{1}\times\dfrac{11}{1}=99\text{ sq. meters}[/tex]
Hence, the area of the ice rink Mr.Cunningham built = 99 sq., meters.
From 89 books to 130 books
The percent increase is what?
Answer:
46.0674% increase
Please Help!!!
1) Write the integer to represent a debt of $15. *
2 points
2) Write the integer to represent 300 miles south. *
2 points
3) Write to compare. 0.51_____0.6 *
2 points
4) Write to compare. |-5|_____|-2| *
2 points
5) Write to compare. (-6)_____(-10) *
2 points
6) Write -12, 0, 2, -8, 19 in order from least to greatest. *
2 points
7) The sum of a positive number and a negative number is ALWAYS a negative number. *
2 points
True
False
8) The additive inverse of 3/4 is 4/3. *
2 points
True
False
9) The multiplicative inverse of -2/3 is -3/2. *
2 points
True
False
10) Write 3 and 2/3 as the ratio of two integers. *
2 points
11) What is the location of the point on the number line? *
2 points
Captionless Image
2 and 1/3
2 and 1/4
3 and 3/4
3 and 3/3
12) Factor COMPLETELY: 8n-28 *
2 points
2(4n-14)
4(2n-7)
8(n-3)
Not factorable
13) Factor COMPLETELY: ta+tb-tc *
2 points
t(a-b-c)
t(a-b+c)
t(a+b-c)
Not factorable
14) Simplify: |-16| *
15) Simplify: -6+12-8-(-15)+7n *
16) Simplify: -12+50 *
17) Simplify: -18-4 *
18) Simplify: -42-(-21) *
19) Simplify: -63/3 *
20) Simplify: -15n/-5 *
21) Simplify: -15n-9n+2n *
22) Simplify: -12n+6-5-(-2n)+12n-2 *
23) Simplify: (-2)(-3)(-5) *
24) Simplify: -3[(-8)+(-9)] *
25) Simplify: -(x+3) *
26) Simplify: -3(x-4) *
27) Simplify: 13x-(2x+5) *
28) Simplify: 3[8-(7-5)] *
29) Simplify: 12n-(5n+8) *
30) Simplify: 2(3x+7)-3(x-7) *
Answer:
Step-by-step explanation:
i think all o them but that is not on edge 2020
Answer:
Its Either A or C, most likely A though
Step-by-step explanation:
What number is 45% of 70?
Answer:
31.5
Step-by-step explanation:
Answer:
64%
Step-by-step explanation:
[tex]\frac{45}{70}[/tex]x100 = 64.285714
hope this helped
consider the solution to the problem
problem: -3(2-y)+2=2
step 1:-6-y+2=2
step 2: -4-y=2
step 3: -y=6
step 4: y=-6
the first mistake is made in step. ?
Answer:
step 1
Step-by-step explanation:
WILL GIVE BRANLIEST
Always thinking about food, Scooby-Doo and his crew went out to eat. Their total bill was about $82. If the group wanted to leave a 20% tip, how much will the tip cost?
(PLEASE SHOW WORK)
Answer:
$16.40 tip
Step-by-step explanation:
82 * .20 = 16.40
well i hope this helps :}
Answer:
16.4
Step-by-step explanation:
20. percent *82 =
(20.:100)*82 =
(20.*82):100 =
1640:100 = 16.4
René Descartes, a founder of geometry, used a chiliagon in his discussions
of philosophy. Determine the central and base angles of a chiliagon,
1000-gon.
Answer:
In geometry, a Chittagong or 1000-hon is a polygon with 1,000 sides. Philosophers commonly ... The measure of each internal angle in a regular Chittagong is 179.64°. ... Rene Descartes uses the Chittagong as an example in his Sixth Meditation to ... uses the Chittagong as evidence that "intuition is not necessarily founded
Step-by-step explanation:
HELPP MEEE PLEASE SO YOU CAN HELP ME GET MY ALBUMS BACK AND POSTERS AND EVERYTHING
Answer:
The answer is C!Step-by-step explanation:
Expand the square:
( − 4 ) ^2
( − 4 ) ( − 4 )
Distribute :
(x−4)(x−4)
( − 4 ) − 4 ( − 4 )
Distribute again:
( − 4 ) − 4 ( − 4 )
^ 2 − 4 − 4 ( − 4 )
Distribute again:
^2 − 4 − 4 ( − 4 )
^2 − 4 − 4 + 1 6
Combine like terms :
^2 − 4 − 4 + 1 6
x^2−4x−4x+16
Solution :
2 − 8x+ 1 6
Hope this helps! If so please mark brainliest!!What is 3/7•1/3? Please help asap
Answer:
1/7
Step-by-step explanation:
3
7
(1)
3
=
1
7
In a jewelry store, rings make up 5\9 of the inventory.Earrings make up 4\15 of the inventory .How many times greater is the ring inventory Than the earring inventory?
Answer:
2.083 times
Step-by-step explanation:
Given that:
Rings = 5/9 of inventory
Earrings = 4 /15 of inventory
How many times greater is the ring inventory Than the earring inventory?
To obtain the number of times ring inventory is greater than earring inventory:
Divide the fraction of inventory in ring / fraction of earring inventory
5/9 ÷ 4/15
5/9 * 15/4
= 5*15 / 9*4
= 75 / 36
= 2.083
Hence, ring inventory is 2.083 times more than earring inventory.
(X^2+2xy+y^2)(x+1) solve and show all work
Answer:
answer would be C.
Step-by-step explanation:
x²+2xy+y²=(x+y)²
(x²+2xy+y²)(x+1)=(x+y)²(x+1)
i need help finding the gcf of these polynomials
Answer:
3z^2
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
solve them plz no need for explanation.
Answer:
The correct answer is 7
Answer: C, A, Yes, C or D, D
Step-by-step explanation:
1. option C
g(x) = -3x + 1
g(-2) = -3(-2) + 1
= 6 + 1
= 7
2. option A
f(x) = 2x - 5
f(3) = 2(3) - 5
= 6 - 5
= 1
3. YES
The graph passes the vertical line test (no duplicate x-values)
4. option not provided (either C or D)
when x = 0, y = 3
5. option D
when x = 0, the point lands on the y-axis so is the y-intercept
Sam is playing with his slingshot and launches a rock straight up in the air with an initial upward velocity of 120 ft/sec. Gravity slows the rock’s upward velocity and it eventually changes directions and falls back down to the ground. The height of the rock is defined using the function h(t) = -16t2 + 120t. What is a reasonable value of the domain, t?
Answer:
The answer is 5 seconds
Step-by-step explanation:
gotten it right on my quiz
( next time please try and put the options as well)
2x^2-20x=x^2-192x
2
−20x=x
2
−192, x, squared, minus, 20, x, equals, x, squared, minus, 19
Rewrite the equation by completing the square.
Answer:
rewrite: (x-10)^2=81
solution: x=10±9
Step-by-step explanation:
took the quiz.
When a 757 passenger jet begins its descent to the Ronald Reagan National Airport in Washington, D.C., it is 3900 feet from the ground. Its angle of descent is 6 degrees
Answer:
Step-by-step explanation:
The plane's horizontal distance from the ground is 409.91 ft and the plane must fly 37310.411 ft before it descends to the ground.
Data;
Distance of the place from the ground = 3900 ftangle of depression = 6 degreeTrigonometric RatioThis is a geometric method used to find the side or angle of a right angle triangle.
The plane's ground horizontal distance from the airportTo find the plane's ground distance from the airport, we have to use trigonometric ratio
The plane distance from the ground (opposite) = 3900The angle = 6 degreeThe plane's horizontal distance from the ground (adjacent) = yFrom SOHCAHTOA
Using tangent of the angle
[tex]tan \theta = \frac{opposite}{adjacent}\\ tan 6 = \frac{3900}{y}\\ \\y = 37106.02ft[/tex]
The plane's horizontal distance from the ground is 409.91 ft.
How far must the plane fly before it descend to the groundUsing the values above,
Taking the sine angle of this since we have the value of angle and opposite.
[tex]sin\theta = \frac{opposite}{hypothenuse}\\ sin6 = \frac{3900}{x}\\ x = \frac{3900}{sin6}\\ x = 37310.411ft[/tex]
The plane must fly 37310.411 ft before it descends to the ground.
Learn more on trigonometric ratios here;
https://brainly.com/question/10417664
Is x = 1 a solution to 2x + 5 = 4x -10?
Use substitution.
Answer :
2x - 4x = -10 - 5
-2x = - 15
Divide both sides by - 2
X = 15/2 or 7 1/2
Can someone help me I'll mark I as brainliest
Answer:
The answer is > sign
Step-by-step explanation:
Because if you add +4 on both sides on 8 you would get 12 then if you would bring down your 3x > 12 and you would divide that 3 by 12 switch would be 4 and 3 divide by 3 is 1 and that X would represent 1 should you bring it down which would be X > 4 that would be your answer.
Answer:
Step-by-step explanation:4<8 8 / 42 x=2If θis an angle in Quadrant III, which trig ratio(s) will be positive?
A. θsin
B. θcos
C. θtan
D. sin θ , cos θ , tan θ
Answer:
C
Step-by-step explanation:
Here, we want to select the the trigonometric ratio that is positive quadrant iii
The trigonometric ratio positive in quadrant iii is the tangent
This is the ratio of the opposite to the adjacent and it is usually abbreviated as tan theta
Parallelogram B. Rhombus
Which of the following is the odd
D. Cylinder
Trapezium
Answer:
odd out of all shapes cylinder
Answer:
D
Step-by-step explanation:
the odd one is cylinder
what is the property
-2(x-y) = -2x+ 2y
Answer:
Distributive Property.
General Formulas and Concepts:
Distributive Property distributes a multiplied term to each term in parenthesis.
Step-by-step explanation:
Step 1: Define
-2(x - y)
Step 2: Distribute:
-2x + 2y
How many solutions does the equation 2 (p+ 7) = 4 - 8p have?
A.One solution
B.Infinitely Many Solutions
C.No Solution
Answer:
one solution p=-1
Step-by-step explanation:
The equation 2 (p+ 7) = 4 - 8p has only one solution which is -9.
What is the solution for an equation?The solution of an equation refers usually to the values of the variables involved in that equation which if substituted in place of that variable would give a true mathematical statement.
We need to find the solutions does the equation 2 (p+ 7) = 4 - 8p have;
Now solving for p;
2 (p+ 7) = 4 - 8
Open the bracket;
2p+ 14 = 4 - 8
Combine the like terms;
2p = -4 - 14
2p = -18
p = -18/2 = -9
Therefore, the equation 2 (p+ 7) = 4 - 8p has only one solution which is -9.
Learn more about solving equations here:
https://brainly.com/question/13072448
#SPJ5
Scrieti fiecare dintre nr 24, 36 si 60 ca: a) produs de 2 factori, diferiti de 1 b) produs de 3 factori, diferiti de 1 c) produs de cat mai multi factori, diferiti de 1
Answer:
Step-by-step explanation:
1. Produse cu 2 factori
24 = 4 * 6
36 = 3 * 12
60 = 6 * 10
2. Produs de 3 factori
24 = 2 * 3 * 4
36 = 2 * 3 * 6
60 = 2 * 3 * 10
3. Cât mai mulți factori posibil
24 = 2 * 2 * 2 * 3
36 = 2 * 2 * 3 * 3
60 = 2 * 2 * 3 * 5