Answer:
d
Step-by-step explanation:
Select the correct answer
A scientist is studying the motion of waves by measuring the distance between the crests and troughs of waves in a particular area. He set up a
series of buoys at equal intervals, and attached a depth detector to each buoy.
After gathering data, the scientist modeled the positions of the buoys at a specific instance with the
given function, where x is the horizontal
distance, in feet, from the first buoy and 1() is the depth of the water, in feet, at that location.
f(3) = 2cos(61) + 13
Select the correct representation of the buoy positions modeled by function f.
Answer:
i got it right on the test
Step-by-step explanation:
The correct representation of the buoy positions is modeled by function f shown in picture (B) option (B) is correct.
What is cos function?It is defined as a function that is sinusoidal in nature, and it has a domain of all real numbers and lies between the [a, a]where is the amplitude of the function.
We have:
A scientist studying the motion of waves by measuring the distance between the crests and troughs of waves in a particular area.
The equation he set up:
f(x) = 2cos(πx/8) + 13
As we know the cos function has a maximum value is 1 and a minimum value is -1
The maximum value:
f(0) = 2(1) + 13
f(0) = 2 + 13
f(0) = 15
The minimum value:
f(8) = 2(-1) + 13
f(8) = -2 + 13
f(8) = 11
Thus, the correct representation of the buoy positions is modeled by function f shown in picture (B) option (B) is correct.
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Find the solution to the following system using substitution or elimination:
Please help this is my 5th time asking this question
C. (1, 10)
10=3(1)+7
10=3+7
10=10
(-2)x(+4)x(+3)x(-1)=
Can you help me please?
Pode me ajudar por favor?
Podría ayudarme por favor?
Answer:
-24
Step-by-step explanation:
-2×4= -8
-8×3= -24
-24×1= -24
I hope this helps ^-^
help ASAP Ill mark brainliest
Answer:
1:4
Step-by-step explanation:
there are 5 questions. there is one correct answer so the rest must be wrong. so the ratio of correct to wrong is 1:4.
(12x5+3x25)-8
12x5=60
3x25=75
60+75=135
135-8=127
Answer:
127
Step-by-step explanation:
What is the measure of angle N?
Answer:
42.7+90+N=180
132.7+N=180
N=180-132.7
Angle N =47.3°
if 2 bags of nuts cost $5.50, how much will 7 bags cost
Answer:
$19.25
Step-by-step explanation:
Find the cost of one bag.
5.50/2=2.75
Multiply bag of one by the amount of bags wanted.
2.75*7=19.25
Therefore, the answer is $19.25
Please consider giving a thanks, a good rating, and brainliest! It is very much appreciated! Thanks a lot!
Cost of 7 bag of nut using the unitary method is $19.25
What is Cost?A cost is the value of money that has been used up to produce something or deliver a service
What is Unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Cost of 2 bags of nuts = $5.50
Cost of 1 bag of nuts =[tex]\frac{5.50}{2} =2.75[/tex]
Cost of 7 bags of nuts =7×2.75= $19.25
Hence, the cost of 7 bags of nuts is $19.25
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This is about pi and 25 is NOT the answer. If you choose 25, have a link, an answer that isn't even near the answer to the question (ex. "Hhhhjjhf thank you" isn't a real answer) you will be reported. Thank you guys need explanation for brainliest but is optional.
Answer: 19.625in
Step-by-step explanation:
3.14*1.25*1.25 = 4.90625
4.90625*4 = 19.625in
Answer: 19.625in
Step-by-step explanation:
What is the measure of
In ABC as shown, AC 1 BC , AB = 11.4, and
BC = 7.
degrees
А
11.4
B
С
7
hope it helps. , good afternoon , have a great day .
The dot plots show 20 scores on two different tests. What is the difference of the ranges?
Answer:
is there a picture??!? I can't help without giving the data set.
What is the value of x?
Answer:
Step-by-step explanation:
Calculate the width of it,then add all the sides together.
can someone please help me
Answer:
B
Step-by-step explanation:
Since the function calls for you subtracting 1 from the input to the output, B makes sense.
Answer:
B is the correct answer bc
4-1=3
3-1=2
9-1=8
a game consists of randomly choosing a bag (labelled 1, 2 or 3) out of a choice of 100, and then again randomly, picking a ball (red or black) from it. Each bag has the same total of balls (10). the same player is going to play the game 200 times consecutively. how many black balls should he expect to pick
Answer:
hello your question has some missing information attached below is the missing information
answer : 112 black balls
Step-by-step explanation:
Given data:
Each bag contains ; 10 balls
Total number of ball = 100 balls
first: calculate the number of Black balls to be picked from the three bags
From bag 1 = 0.4 * 0.35 * 10 = 1.4 balls
From bag 2 = 0.8 * 0.45 * 10 = 3.6 balls
From bag 3 = 0.3 * 0.2 * 10 = 0.6 ball
Total black balls picked = 5.6
∴ percentage of black balls picked given that each bag contains 10
5.6 / 10 * Total balls available = 56 balls = 56% of 100 balls
Hence If the player plays this game 200 times the number of black balls he will pick = 56% * 200 = 112 balls
On the main floor of the Kodak Hall at the Eastman Theater, the number of seats per row increases at a constant rate. Lucas counts 31 seats in row 3 and 37 seats in row 6. How many seats are there in row 20?
67
61
63
65
Answer:
67
Step-by-step explanation:
There are 65 seats in row 20, option D is correct.
Given that number of seats in row 3 are 31.
Number of seats in row 6 are 37
We need to find the rate of increase, we can calculate the difference in the number of seats between row 6 and row 3 and divide it by the number of rows in between:
Rate of increase = (Number of seats in row 6 - Number of seats in row 3) / (6 - 3)
Rate of increase = (37 - 31) / (6 - 3)
Rate of increase = 2
So, the number of seats increases by 2 seats per row.
To find the number of seats in row 20, we can use the rate of increase:
Number of seats in row 20 = Number of seats in row 3 + (Rate of increase × (20 - 3))
Number of seats in row 20 = 31 + (2× (20 - 3))
= 31 + (2 × 17)
= 31 + 34
= 65
Therefore, there are 65 seats in row 20.
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Which of the following statements correctly describes the evidence shown by
the structures in the accompanying image?*
Whale
Frog
Porce
Bird
VARROW
O c. The human and the bat share analogous bone structures in their forelimbs
b. Only the human and the frog share homologous bone structures
a. The bat and the frog share analogous bone structures in their forelimbs
d. All the species shown share homologous structures in their forelimbs
All the species shown share analogous
ructures in
forelimbs
O
This is a required question
A runner is participating in the Boston Marathon. He has run 12 miles of the 26.2 mile course. What percent of the course has he run so far?
A triangle has one angle of 120 degrees what must be true about the other two angles A- the sum of the two angles must be equal to 120 degrees. B- the two angles must be the same measure C- the sum of two angles must be 60 degrees
Answer:
C
Step-by-step explanation:
A triangles sum of all the angles will be 180, so since we already have one as 120, then that least 60. So the sum of the two extra angles has to be 60.
The two triangles are similar. Find the unknown variables.
i know that the answer is not 6 so please don’t comment that
Answer:
i thought it is 18 since 4 x3 =12 then 6x3 =18 I am not sure 100%
Identify the height of a triangke in whixb b = 12 m and A = (18x - 6) m^2
Answer:
h = (3x − 1) m
Step-by-step explanation:
PLZ HELP ITS DUE RN BRAINIEST TO WHOEVER RIGHT!
Answer:
About -5.8 and -.2
Step-by-step explanation:
Zeros at -5.828 and -.172
(9b+3)(b-7)=0
Solve this using factoring, what are the two x’s?
Answer:
answer is down below
Step-by-step explanation:
u have ur two brackets.
(9b+3)(b-7)=0
take 1 bracket at a time
9b+3=0
solve it so:
9b+3=0
9b=-3
b= -3 / 9
Ans: b=-1/3
take the other bracket
b-7=0
solve it:
Ans: b=+7
A parallelogram with a height of 2x+3 has an area listed below. What is the length of the base of the parallelogram? 2x^2+13x+15
Answer:
x+5
Step-by-step explanation:
I thought what 2 numbers if multiplied made 15
also 2x+3 already has a 3
so I'm guessing 3 and 5
then I put them next to each other
(2x+3) ( +5)
I put a x in the second parenthesis as a guess because the area had a 2x^2 in it . that could only happen with 2x * x
so (2x+3) (x+5)
Ms. James is buying petri dishes for a science experiment for her students. The supply store sells petri dishes in packages of 15. Ms. James needs 350 petri dishes for her students this year and she already has 25. How many packages should she order? Will she have any petri dishes leftover? If so, how many? Explain. pls i need it nowww
Answer:
ms.james already as 350 so minus 25 from that which is 325.Then divide that by 15 which is 21 and she will have 6 left over
Answer:
330
Step-by-step explanation:
350 325 ÷ 15 = 21.6666666667
- 25 21x15 = 315 so get 22 bc 22x15=330
-------
325
Bob and his friends went out to lunch.
• They bought 3 sandwiches and 3 bottles of water.
The bottles of water cost $1.50 each.
• The total bill was $30.00.
How much does one sandwich cost if they cost the same amount?
Answer:
Each sandwich cost 8:50
Step-by-step explanation:
total 30$
total price of the waters 4:50
30-4:50=25:50
25:50÷3=8:50
The two photos are both for the same question please help I dont know how to solve the revered graph
Answer:
point b is plotted incorrectly
Step-by-step explanation:
A system of equations is shown.
y = 3x - 2
y = x2
What are the solutions to the system of equations?
Answer:
x = 1, y = 1
x = 2, y = 4
Step-by-step explanation:
substitution method:
x² = 3x - 2
x² - 3x + 2 = 0
(x - 2)(x - 1) = 0
x = 2
x = 1
Kant's sister has 150 red marbles and 360 pink marbles and she wants the same number of marbles on each row, what is the least number of rows she can make ?
Answer:
We know that Kant's sister has 150 red marbles and 360 pink marbles.
She separates the marbles in rows, such that each row must have the same number of marbles.
The least number of rows she can make is when she puts N marbles in each row, such that N is the greatest common factor between 150 and 360.
To find the greatest common factor between 150 and 360 we can write them as the product of prime numbers.
150 = 15*10 = (3*5)*(2*5)
360 = 36*10 = (6*6)*(2*5) = (2*3*2*3)*(2*5)
Here we can see that the factors: 2, 3, and 5 appear (at least) one time in each number, this means that the greatest common factor between 150 and 360 is the product of these 3 factors:
GCF = 2*3*5 = 30
This means that we need to make rows with 30 marbles each.
and we will have:
150/30 = 5 rows of red marbles
360/30 = 12 rows of pink marbles.
A total of 5 + 12 = 17 rows.
measurements I suck at it
Answer:
a = 65
b = 73
c = 17
d = 138
Step-by-step explanation:
d + 42 = 180
d = 138
c + d + 90 + 115 = 360
c + 138 + 205 = 360
c + 343 = 360
c = 17
90 + b + c = 180
90 + b + 17 = 180
b + 107 = 180
b = 73
a + b + 42 = 180
a + 73 + 42 = 180
a + 115 = 180
a = 65
Answer:
a is 65
b is 73
c is 17
d is 138
Find sin D, sin E, cos D, and cos E. Write each answer as a fraction in simplest form.
[tex]\frac{1-(-5)}{7-2}[/tex]
Answer:
2
Step-by-step explanation: