Answer:
2.25
Step-by-step explanation:
HELP I HAVE A TEST TMR MORNING!!!!!!
A boat tied up at a dock bobs up and down with passing waves. The vertical distance between its high point and its low point is 1.8m and the cycle is repeated every 4 s.
Here is the equation that models this: [tex]f(x)=0.9sin(\frac{\pi }{2} x)[/tex]
^The y-coordinates are in m and the x coordinates is the time in seconds
b) Use the model to determine when, during each cycle, the boat is 0.5m above the mean positition.
BRAINLIEST!!!!
The time the boat is 0.5 m above the mean position during each cycle is (4n + 0.375) s
Since y = f(x) = 0.9sin(πx/2)
We want to determine the time, x at which the boat is 0.5 m above its mean position. This is the value of y at y = 0.5 m
So, y = f(x) = 0.9sin(πx/2)
0.5 = 0.9sin(πx/2)
Dividing through by 0.9, we have
0.5/0.9 = sin(πx/2)
5/9 = sin(πx/2)
Taking inverse sine of both sides, we have
sin⁻¹(5/9) = πx/2
sin⁻¹(0.5556) = πx/2
0.589 rad = πx/2
x = 2 × 0.589/π
x = 1.178/π
x = 0.375 s
Since the boat repeats its cycle every 4 seconds, the time the boat is 0.5 m above the mean position after n cycles is t = (4n + 0.375) swhere n is a positive integer. That is n = 0, 1, 2, 3...
So, the time the boat is 0.5 m above the mean position during each cycle is (4n + 0.375) s
Learn more about sine function here:
https://brainly.com/question/12102275
use the figure to find the value of PT.
PT = 5x + 7 and TQ = 9x-5
Can someone help with this please?
Answer:
900
Step-by-step explanation:
Might wanna double check. I rushed
(7m-2m^2n)^2
-42+144
900
plz .can any one help me.how we calculate this solution : 2 power2 + 6
Answer:
2² = 2*2
(2*2) + 6 = 4+6 = 10
Which elements are involved in physical weathering?
Air, salt, rivers, sand, and ice
Air, water, ice, temperature, and plants
Animals, water, pressure, sediment, and gravity
Temperature, animals, ice, gravity, and plants
Answer:
heat, water, ice, or other agents
Step-by-step explanation:
For 30 minutes you do a combination of walking and jogging. At the end of your workout your pedometer displays a total of 2.5 miles. You know that you walk .05 miles per minute and jog .1 miles per minute. For how much time were you walking
Which graph is not a function ? Why isn’t it ?
Answer:
Graph 2
Step-by-step explanation:
Graph two is not a function because it does not pass "the vertical line test", which is a method of determining if a graph is a function or not. To do this, we use our pen to check that for every x value there is only one y value. In graph two, however, this is not the case.
Choose the correct definition of
(2)
from below.
A.
kI
n!(n – kỳ!
B.
n!
(n-k)!
C.
!
k!(n-k)!
D.
n!
K!(K-n)!
Answer:
Answer is C noumber
Step-by-step explanation:
We know that a combination is a collection of the items where the order doesn't matter. It is a way to calculate the total outcomes of an event where order of the outcomes does not matter. It is denoted by C(n,k) or (n,k) or (n/k).
The formula for the number of combinations of n things taken r at a time is given by :-
C(n,k)=(n/k)=\frac{n!}{k!(n-k)!}C(n,k)=(n/k)=
k!(n−k)!
n!
Hence, C is the right option.
2.5(10x +8) + 3x distributive property
Answer:
23/25
Step-by-step explanation:
(25x+20)/25x+3x/25x
20+3/25=23/25
28x+20
Step-by-step explanation:
[tex]2.5(10x + 8) + 3x \\ 25x + 20 + 3x \\ 28x + 20[/tex]
6 (3j + 5 + 4j) simplified with the commutative property
(25 points)
(this is 6th grade second-semester math)
Answer:
6 x (3j + 5+ 4j)
6 x(8j+4j)
6 x 12
72
Step-by-step explanation:
hope this helps
4g as a verbal expression
Answer:
Step-by-step explanation:
1) A number g multiplied by 4
2) Product of 4 and g
3) 4 times g
Russell is eating at a restaurant. His total bill comes to $44.85. If Russell decides to leave a tip that is approximately 20% of the total bill, how much should he leave for the tip?
$9.00
$0.09
$54.00
$8.00
Answer:
I'm thinking is I'm not sure is is answer 0.9
Step-by-step explanation:
am not sure my answer guys because naka tulong din na man too
Please help me!!!!!!
Answer:
do you know what the question is asking?
Step-by-step explanation:
Which situation can be modeled by the inequality 65-8x>9
Answer:
x<7
Step-by-step explanation:
65-8x>9
-8x>9-65
-8x>-56
x<7
Answer:
x<7
Step-by-step explanation:
65-8x>9
-8x>9-65
-8x>-56
x<7
800 students were surveyed to find out their favorite subject. 35% chose math. How many students chose math.
4x squared plus 20x minus 24 pls
The Answer will equal 4(x-1)(x-6)
Step by step explanation= 4x^2+20x-24, 16x+20x-24, 36x-24= 12x
Answer:
4(x-1) (x-6) as an evaluation OR 12x as the answer since you didn't include what it equals.
Step-by-step explanation:
4x^2+20x-24
16x+20x-24
36x-24
12x
I don’t know what the answer Is
Answer:
Exact Form: x = 10/7
______
Decimal Form: x = 1.428571
Mixed Number Form: x = 1 3/7
Hope this helps, have a nice day/night! :D
If this helped please mark this as brainliest!
Answer:
In the picture
Step-by-step explanation:
Good luck!
What is Arithmetic ?
Answer:
Arithmetic is a branch of mathematics that consists of the study of numbers, especially concerning the properties of the traditional operations on them - addition, subtraction, multiplication, division, exponentiation, and extraction of roots.
Answer:
The arithmetic mean is the simplest and most widely used measure of a mean, or average. It simply involves taking the sum of a group of numbers, then dividing that sum by the count of the numbers used in the series.
Step-by-step explanation:
for g(x)=2x^2-8x-10 find each value
g(2)
g(5)+12
g(8)-18
g(-3)-g(4)
Answer: ask your teacher duh
Step-by-step explanation:
Determine whether these two ratios
form a proportion:
8/10 and 24/30
Please help asap. I give brainliest and points plz no links i grinded for these points
LOOK AT THE PIC
Represent the following expressions as a power of the number a where a not = 0
((a^-2)^-1)^-1 divided by ( a divided by a ^-1)^2
Step-by-step explanation:
[tex]((a^{-2})^{-1})^{-1}:(a:a^{-1})^2 =[/tex][tex]a^{(-2)*(-1)*(-1)}:(a^{1-(-1)})^2 =[/tex][tex]a^{-2}:(a^2)^2 =[/tex][tex]a^{-2}:a^4=[/tex][tex]a^{-2-4}=[/tex][tex]a^{-6}\\ or\\ 1/a^6[/tex][tex]\\ \rm\leadsto ((a^{-2})^{-1})^{-1}/(a\div a^{-1})^2[/tex]
[tex]\\ \rm\leadsto (a^2)^{-1}/(a^2)^2[/tex]
[tex]\\ \rm\leadsto (a^2)^{-1-2}[/tex]
[tex]\\ \rm\leadsto (a^2)^{-3}[/tex]
[tex]\\ \rm\leadsto a^{-6}[/tex]
Solve the equation for X:
4x2 + 15x = 4
Answer:
15x=-4
Step-by-step explanation:
Write the decimal as a fraction in simplest form.
5. -18.04
Answer: - [tex]\frac{451}{25}[/tex]
Step-by-step explanation:
Please help!! I’m taking a math course a grade above mine but since i’m on break my teacher isn’t able to help me.
Answer:
Slope = ½
Step-by-step explanation:
Given the two points on the graph, (-4 , 0) and (0, 2):
Let (x₁, y₁) = (-4 , 0)
(x₂, y₂) = (0, 2)
Substitute the given points into the following slope formula:
[tex]\LARGE\mathsf{m = \frac {(y_2\: -\: y_1)}{(x_2\: -\: x_1)}}[/tex]
[tex]\LARGE\mathsf{m = \frac {2\: -\:0}{0\: -\:(-4)}}[/tex]
[tex]\LARGE\mathsf{m = \frac {2\: -\:0}{0\: +\:4}}[/tex]
[tex]\LARGE\mathsf{m = \frac {2}{4}\:=\:\frac{1}{2}}[/tex]
Therefore, the slope of the line is ½.
What are the solutions to the equation sin(x+7pi/2)=-sqrt 3/2
over the interval [0,2pi]?
Answer: C: pi/6 and 11pi/6 only
Step-by-step explanation:
Edge2020 :]
can anyone tell me if this is right
Answer:
yes it is correct
Step-by-step explanation:
What is the slope of the line represented by the equation y = fx-3?
Х
5
-3
o
4
5
|s
4
5
O 3
Please helpppp!!!!
Answer:
it 3.5-9
Step-by-step explanation:
Please help with this question.
Thanks.
Answer:
10
Step-by-step explanation:
E = V + 1/2mv^2
700 = 300 + 1/2*8*v^2
400 = 4v^2
100 = v^2
v = 10
helppp pls alg2
How do the graphs of transformations compare to
the graph of the parent function?
please give me the answer
Answer: i’m pretty sure it’s a, if not you can delete this message.
Answer:
B (1.5,2)
Step-by-step explanation:
(4-1)/2,(0+4)/2=
3/2,4/2=
(1.5,2)