The distance traveled by the echo is used to determine the player's distance from the wall
The player's distance from the wall is 66 m.
Reason:
Known parameter;
The time after which the tennis player hears the echo of the ball, t = 0.4 s
The speed of sound in air, v = 330 m/s
The distance of the player from the wall = Required
Solution:
Let d, represent the distance of the player from the wall
An echo is the reflection the wave of the sound of hitting the ball that
travels to the wall and back
The distance traveled by the sound to the wall, d, and back, (d again), is 2·d
[tex]Speed = \dfrac{Distance}{Time}[/tex]
Therefore;
[tex]The \ speed \ of \ the \ sound,\ v = \dfrac{2 \cdot d}{t}[/tex]Therefore;
[tex]330 = \dfrac{2 \cdot d}{0.4}[/tex]
330 × 0.4 = 2·d
[tex]d = \dfrac{330 \times 0.4}{2} = 66[/tex]
The distance of the player from the wall, d = 66 mLearn more here:
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40% of the problems is 32 problems.
Answer:
80
Step-by-step explanation:
Change 40% to a decimal by moving the decimal 2 places left or divide 40 by 100. Write an equation.
[tex].4p = 32[/tex]
divide both sides by .4
[tex]p = 80[/tex]
Mae read a 403-page book in 13 hours. at this rate , how long will it take her to read a 248-page book?
Answer:
8 hours
Step-by-step explanation:
Number of pages read in 1hour = 403 / 13 = 31 pages
Time taken to read 248 page book = 31 x 8 = 248
It takes 8 hours to read 248 pages book
Susie is visiting Greece from the U.S. One day she stopped by a market and found a stall selling tomatoes for 1.92 euro per kilogram. If 1 euro was worth 1.09 dollars that day, how much did the tomatoes cost in dollars per pound?
can you help me this 4^x x ^8^x^+^1 = 2⁴
A decimal that is 1/10 of 3.0
what is 1/4 x 1/4 x 1/4 do the answer in fraction form
3 (1/4)s
(1/4)³1/4³1/64How much will nick and Adam weigh?
Answer:
181 pounds
Step-by-step explanation:
You have already got the equation and solution which is great! The next step is simply a matter of replacing "x" with "7", because you know x=7.
After doing this, you will be left with the equation 160+3*7=195-2*7. We will look at the first part of the equation first. Using the rules of BIDMAS, you can calculate 3*7=21 and then 160+21=181. 181 is your final answer.
You can check that this is right by calculating the second part of the equation, and once done you should be left with 181. Again, using BIDMAS, you need to do 2*7=14 then 195-14=181. Now we know that everything is correct.
Identify the parent function.
O A. Reciprocal
OB. Square root
O C. Absolute value
O D. Cube root
Answer:
The answer is reciprocal
Answer:
Absolute value
Step-by-step explanation:
Parent function: y = |x|
simplify the expression shown
A:-xy+3y
B:xy+3y
C:-xy-3y
D:xy-3y
Answer:
C:-xy-3y is the answer your welcome
Point upper D left parenthesis negative 3 comma 5 right parenthesis. is a vertex of triangle DEF. After a rotation of the triangle about the origin, upper D prime is located at left parenthesis 3 comma negative 5 right parenthesis. Which of the following was the rotation of the triangle?
The rotation that the triangle DEF underwent is defined as follows:
180º around the origin.
RotationA rotation is one example of transformation that a function can undergo, along with transformation, compression, stretching, dilation or reflection.
A rotation changes the inclination of the figure, and the rules for each rotation are given as follows:
90° clockwise rotation: (x,y) -> (y,-x)90° counterclockwise rotation: (x,y) -> (-y,x)180° clockwise and counterclockwise rotation: (x, y) -> (-x,-y)270° clockwise rotation: (x,y) -> (-y,x)270° counterclockwise rotation: (x,y) -> (y,-x)In this problem, the coordinates are given as follows:
Original: (-3,5).Image: (3,-5).Hence the rule is:
(x,y) -> (-x, -y).
Meaning that a rotation of 180º around the origin was done.
More can be learned about rotation at https://brainly.com/question/26249005
#SPJ1
45six +13six
Carry out the addition shown using base six notation
Step-by-step explanation:
45 6
13 6
_____ +
02 6
1
________
6 /..8
..... -6
_______
..... 2
0
_______
6/5
...5
_____
0
write an addition equation or subtraction equation your choice to describe the diagram. I'll Mark brainest
Answer:
[tex]0+2-4=-2[/tex]
Step-by-step explanation:
We start at 0 and move 2 to the right to get to 2. Then, we move 4 to the left to get to -2.
So, our equation is [tex]0+2-4=-2[/tex], the 0 being our starting point, the +2 coming from moving to the right 2, the -4 coming from moving to the right 4, and the -2 being our end point.
Simplify 4 + (−3 − 8).
options:
−15
−7
7
15
Answer:
B: -7
Step-by-step explanation:
-3-8=-11
4+-11
or
-11+4=-7
Answer:
-7
Step-by-step explanation:
Im not a good explainer more of a mental math genuis and a bad teacher
PLEASE HELP ME ITS ALGEBRA THANK YOUUUU
Answer:
All you have to do is divide 896 ÷ 32 which is 28 and multiply is by 3 since its 3 more nights and the answer is 84 centimeters.
What's the ordered pair for point H in the graph above?
Q4 options:
A)
(0, 4.5)
B)
(0, 5)
C)
(5, 0)
D)
(4.5, 0)
Answer:
C) (5,0)
Step-by-step explanation:
1. The correct answer is C) because when we move five units to right from the origin, and zero units up, we end up at point H!
Answer:
(5, 0)
Step-by-step explanation:
Jacob is making spaghetti for the Anderson family reunion. He will use 14 boxes of spaghetti, with a total weight of 168 ounces.
Karen has two dogs. The larger dog weighs 1.4 pounds more than the
smaller dog. The combined weight of the two dogs is 12.6 pounds. What is
the weight, in pounds, of the smaller dog? Only type in a numeric
response.
Answer:
11.2
Step-by-step explanation:
no linksWhich value completes the equation?
56
,
000
÷
Choose...
= 800
Answer:
800
Step-by-step explanation:
divide 5 and 8
-11.0 - 3.5
Need to solve by steps
Answer: -14.5
What I did was Subtract 3.5 from -11.
When you add them together, you get 14.5, but 14.5 isn't correct, as that's a very large number compared to -11.
Answer:
-14.5
Step-by-step explanation:
-11 - 3.5
Because 11 is already negative, when you subtract a number from a negative, think of -11 becoming "smaller" (smaller being -14, or -25).
When doing -11 - 3.5, think if it as adding 11 and 3.5 together !
When you add them together, you get 14.5, but 14.5 isn't correct, as that's a very large number compared to -11.
You add a negative sign to said -14.5, and that's your answer !
Subtracting from a negative is confusing, so I taught myself to think of it as adding the numbers as if they were positive and adding a negative sign !
Fill in the blanks. Use lower case.
Statements Reasons
1. ∠1 ≅ ∠2, ℓ ⊥ n 1.
2. ǁ n 2. converse of alternate interior angles theorem
3. ℓ ⊥ p 3. transversal theorem
Mathematical proofs are used to determine if a conjecture or statement is true, or otherwise.
The blanks will be filled with the following texts
Given[tex]\mathbf{\angle 1 \cong \angle 2}[/tex]ProvedFrom the question, the following parameters are given:
[tex]\mathbf{\angle 1 \cong \angle 2}[/tex] and [tex]\mathbf{l \perp 1}[/tex]
This means that, the first blank will be completed with given.
By converse of alternate interior angles theorem
[tex]\mathbf{\angle 1 \cong \angle 2}[/tex] --- angle 1 and angle 2 are congruent
So, the second blank will be completed with [tex]\mathbf{\angle 1 \cong \angle 2}[/tex]
The above statement means that:
[tex]\mathbf{l \perp 1}[/tex] has been proved
Hence, the last blank will be completed with proved.
Read more about mathematical proofs at:
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Help me please help me help help me
Answer:
B
Step-by-step explanation:
2x6=12+1=13
4x6=24+1=25
2×x=2x+1=(2x+1)
Will mark BRAINLIEST if correct
Answer:
the answer is 9 square meters
You hike 1.2 miles west from a trailhead and then receive a text from a friend. She
is.x miles west of the trailhead. You hike to meet her, and then you both hike back
to where you left off on the trail. You hiked 2.7 miles in total. Formulate an absolute
value equation to represent this situation,
Answer:
the answer is definitely 4
Please explain this step by step.
5+4(n+9)=-3
Answer:
n = -11
Step-by-step explanation:
5 + 4(n + 9) = -3,
5 + 4n + 36 = -3,
41 + 4n = -3,
4n = -44,
n = -11
fill in the blank (no word bank)
Answer:
Angle, Lengths
Step-by-step explanation:
Angle measurements and segment lengths are preserved as the transformations neither change the scale factor nor change the angle measurements
If f(x) = 2x + 10, then f^-1(x) =
If [tex]f^{-1}(x)[/tex] is the inverse of [tex]f(x)[/tex], then
[tex]f\left(f^{-1}(x)\right) = x[/tex]
by definition of inverse function. We have
[tex]f\left(f^{-1}(x)\right) = 2f^{-1}(x) + 10 = x[/tex]
Solve for the inverse :
[tex]2f^{-1}(x) + 10 = x \\\\ 2f^{-1}(x) = x-10 \\\\ \boxed{f^{-1}(x) = \dfrac{x-10}2}[/tex]
You would like to start a club for psychology majors on campus, and you are interested to find out what proportion of psychology majors would join. The dues would be $35 and used to pay for speakers to come to campus. You ask five psychology majors from your senior psychology honors seminar whether they would be interested in joining this club and find that four of the five students questioned are interested. Is this sampling method biased, and if so, what is the likely direction of bias
From the sample used to find out what psychology majors would join the club and if it is biased, we can say that;
- Yes, the sampling method is biased.
- The likely direction of the bias is because you only asked 5 people which
is not a significant percentage of those offering psychology majors and as
such the 4 out of 5 gotten is likely going to be an over estimation of those
who are willing to pay to join this club.
We are told that;
You want to start a club.This club is for psychology majors.You want to find the proportion of those in the psychology majors that will join this club you want to organize.Now, out of all the students offering psychology majors, you only asked 5 of them if they will be interested. Since 4 out of the 5 are interested and you want to use that to form a basis of the proportion of those interested , it would lead to sampling bias since the population is not adequately represented.Therefore, this would lead to sampling bias and thus the sample is biased.
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How many teaspoons are in 1/2 cup
Answer:
there are 24 teaspoons in 1/2 cup
Convert to - 5/8 to its decimal form using long division. If your answer is a repeating decimal, make sure your decimal goes 5 place values after the decimal or the sequence of numbers that repeat if it is more that five decimal places after the decimal. *
Answer: 5/8 as a decimal is expressed as 0.625.
Hope it helps!
A $1.200 television is on sale for 30% off. what will be the total price of the television?
Answer:
the total price of the TV is $840.
Step-by-step explanation:
100% - 30% = 70%
I'm guessing you meant 1,200 not 1.20 (lol) so I'm just going to go with that.
1,200 * 0.70 = 840
Therefore the total price of the TV is $840.
Please mark brainliest and have a nice day!
Are the ratios 1:4 and 6:10 equivalent?
Answer:
No
Step-by-step explanation:
For ratios to be equivalent, they need to have something in common like 2:4
4:8. Those are common because ":2:4" is the simplified version of 4:8. (I mean it could be simplified to 1:2 but this is used as an example) (mark brainliest plas)
