Answer:
12
Step-by-step explanation:
Two half pounds equal a whole pound, so if there are 6 whole pounds, there are 12 half pounds.
The graph of line p represents = x-1. If the slope of line p is multiplied by (-10)
to create liner, which statement about the graphs of the two lines is true?
A
Line r intersects line p.
B Line ris parallel to line 2.
CLine ris 10 units above line p.
D
Line ris 10 units below line p.
Answer:
A. Line r intersects line p
Step-by-step explanation:
to find the second graph multiply the slope of line p by -10
slope is 1/5 or 0.2
So,
0.2 * -10 = -2
slope of second line is -2
Graph shown
Altered line shown in blue
Line p shown in green
As you can see, they intersect and meet no other answers
The Sea Dragon, a pendulum ride at an amusement park, moves from its central position at rest according to the trigonometric function P(t)=−10sin(pi/3t), where t represents time, in seconds. How many seconds does it take the pendulum to complete one full cycle?
A= 3
B= 5
C= 6
D= 10
Answer:T = 2*Pi / (Pi / 3) = 6 seconds
Step-by-step explanation:
The time (in seconds) that it take the pendulum to complete one full cycle is given by: Option C: 6 (seconds)
What is the period of sine function?Trigonometric functions are periodic. They repeat their values after some specific constant input interval (constant depends on the trigonometric function chosen).
For sine function, its period is 2π
Thus, we get:
[tex]y = \sin(x) = \sin(x+2\pi) = \sin(x + 2\pi n) ; n \in \mathbb Z[/tex] integer, and y is some constant at some constant value of x)
For this case, the pendulum's motion is modeled by:
[tex]P(t) = -10\sin\left(\dfrac{\pi}{3} t\right)[/tex]
Let it takes 'd' seconds to do one full cycle, then we get:
[tex]P(t) = P(t+d) = P(t+2d) = P(t + nd); n \in \mathbb Z - \mathbb Z^{-}[/tex] (n is non-negative integer).
Using the formula, we get:
[tex]-10\sin\left(\dfrac{\pi}{3} t\right) = -10\sin\left(\dfrac{\pi}{3} (t + nd)\right)\\\sin\left(\dfrac{\pi}{3} t\right) =\sin\left(\dfrac{\pi}{3}t + \dfrac{\pi}{3}nd\right)[/tex]
But we know that:
[tex]\sin\left(\dfrac{\pi}{3} t\right) =\sin\left(\dfrac{\pi}{3}t +2\pi n\right)[/tex]
Thus, we get:
[tex]2\pi n = \dfrac{\pi}{3}nd\\[/tex] (compared for non-negative values of n)
This gives:
[tex]d = \dfrac{2\pi n \times 3}{\pi n} = 6[/tex] (in seconds)
Thus, the time (in seconds) that it take the pendulum to complete one full cycle is given by: Option C: 6 (seconds)
Learn more about periodic functions here:
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Solve for y! I need help ASAP. PLEASE
Answer:
y = 2
Step-by-step explanation:
The way you solve this is you transform it until one side of the equation is just "y"
3y + 2 = 8 ; subtract 2 from both sides
3y = 6 ; divide both sides by 3
y = 2
What are possible coordinates of point F if ΔDEF is congruent to ΔABC? (–1,4) (4,–1) (0,–1) (–1,0)
Answer:
(-1, 4)
Step-by-step explanation:
Hope this helps
Answer:
a
Step-by-step explanation:
Can someone help me solve this, I don't understand it.
Step-by-step explanation:
this, I don't understand it.I really need help on this, PLEASE HELP 20 POINTS!!
the question is in the picture please help efgahedn
Answer:
A) 3/56 + 27/56 = 30/56 ÷ 2/2 = 15/28
Step-by-step explanation:
So, there's 3/56 cities that have a lake and 27/56 cities that have a river.
Since the question is asking how much have a lake or river, we add them up.
3/56 + 27/56 = 30/56
(Divide by 2 since that's the common factor)
30/56 ÷ 2/2 = 15/28
What is the measurement of this angle?
:type answer below.
Answer:
115
Step-by-step explanation:
It looks like 115 degrees
Answer:
115 degrees
Step-by-step explanation:
Abby wants to ride her bicycle more than 70 miles this week. On Monday, Abby rode her bicycle for 25 miles. Abby plants to ride the same number of miles in the next six days. Write an inequality that can be used to determine the number of miles, m, that Abby will ride her bicycle each day to achieve her goal.
Answer:
25d > 70
Step-by-step explanation:
Abby wants to ride her bicycle more than 70 miles this week.
More than = >
On Monday, Abby rode her bicycle for 25 miles. Abby plants to ride the same number of miles in the next six days.
Let the number of days of week she would ride her bike = d
On Monday = 25 miles
And the rest of the week = The same = 25 miles
The inequality is written as:
25d > 70
Natalie read 12 books in 8 months. What was her rate of reading in months per books?
12 books divided by 8 months = 1.5 books per month
hope it helps:))
Please anwser fast it’s due in 5 minutes
Answer:30000 just 5000+ six time
Can some one explain how to do it please. I am so confused.
Hi there!
Your job, at least on this triangle, is pretty simple. This is a 45-45-90 triangle.
Because this is a 45-45-90 triangle, both legs are 5. That leaves us to find the hypotenuse, x.
And a 45-45-90 triangle's hypotenuse is easy. You just take the measure of one of the legs, or 5 in this case, and stick a [tex]\sqrt{2\\}[/tex] right next to it. So your answer will be:
[tex]5\sqrt{2}[/tex]
I hope this helps! :)
I do not understand this question
Answer:
B
Step-by-step explanation:
24 miles / 4 hours = 6 miles per hour
.
and answer B is showing a graph with slope of 6 miles per hour
What is the length of the missing side of the triangle below?(round to the nearest tenth)
Answer:
[tex] \sqrt{ {2}^{2} + {6}^{2} } = \sqrt{40 } = 2 \sqrt{10} [/tex]
Find the area of the sector below:
No links pls !
Answer:
32pi ftsquared or
100.48ft squared (multiplied by 3.14)
Step-by-step explanation:
a = piR^2
can someone help me?? i’ll mark brainlist
How many (and of what nature) roots does the function have?
Step-by-step explanation:
(x+1) (x+4)
x * x make x^2
1 & 4 when multiplied make 4 and when added make 5
Solve both please I cannot find the answer
Step-by-step explanation:
the rate of change in A
10-5/4.5-3 .5
=5.
but where is the function B??
just pick two y values and it's corresponding x values
the rate of change is equal to the gradient .
change in y values divided by change in the x values.
Use the graph at the right. Find the vertices of the image of QRTW for a dilation with center (0,0) and a scale factor of 5.
Answer:
What image? (9/ -0) Is 9 - 8 =1
Step-by-step explanation:
Answer:
you dont have the image of the graph.
Step-by-step explanation:
Clara has 9 pounds of apples. She needs 1 1/4 pounds to make one apple pie. If she saves 2 pounds for applesauce, how many pies, p, can she make? Write an algebraic equation to represent this situation.
Answer:
She can make :
5 3/5 pies
Algebraic equation =
1 1/4 p = (9 - 2)
Step-by-step explanation:
Clara has 9 pounds of apples. If she saves 2 pounds for applesauce, how many pies, p, can she make?
Total number of pounds of apples = 9 pounds
She saves 2 pounds for apple sauce
The number of pounds of apples left =
9 pounds - 2 pounds
= 7 pounds
She needs 1 1/4 pounds to make one apple pie.
Therefore
1 1/4 pounds = 1 apple pie
7 pounds = p
Cross Multiply
1 1/4 × p = 7 × 1
p = 7 ÷ 1 1/4
p = 7 ÷ 5/4
p = 7 × 4/5
p = 28/5
p = 5 3/5 pies
An Algebraic equation for this situation is:
1 1/4 p = (9 - 2)
Where p = Number of pies
!!HELP + BRAINIEST!!
find 0. round to the nearest degree. 15 4
Answer:
68.2
Step-by-step explanation:
You can use a^2+b^2=c^2 to find the length of the missing side, where c^2 is the hypotenuse (side 14).
5^2+x^2=14^2
25+x^2=196
x^2=196-25=171
x=13.0 (rounded)
Next, use one of sin or tan to find the missing angle.
Sin0=opposite/hypotenuse
Sin0=13/14
0=sin^-1(13/14)
0=68.213 (rounded)
The value of the angle asked is 69°.
Given is a right triangle, with base = 5 units and the hypotenuse is 14 units,
We need to find the angle θ which is between the base and the hypotenuse,
To find the angle θ between the base and the hypotenuse of a right triangle, we can use the trigonometric function cosine (cos).
The cosine of an angle is defined as the ratio of the length of the adjacent side to the length of the hypotenuse.
In this case, the base of the triangle is the adjacent side, and the hypotenuse is given as 14 units.
Therefore, we can use the following formula:
cos(θ) = adjacent/hypotenuse
Plugging in the values we know:
cos(θ) = 5/14
To find the angle θ, we need to take the inverse cosine (arccos) of both sides:
θ = arccos(5/14)
θ = 69°
Hence the value of the angle asked is 69°.
Learn more about trigonometric function click;
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I need help with this
Answer:
never, never, sometime, sometimes, and always.
Step-by-step explanation:
I'm smart lol
I am confused on this, I would LOVEE some help please!
Answer:
2nd and 5th one are correct. Rest of them r wrong
Step-by-step explanation:
2.
A. 6.5
B. –5.5
C. 3
D. 30
Answer: C. 3
-6v< x v>-.5
divide by -6 flips the inequality
v> x/-6
so x/-6 = -.5
multiply by -6 on each side
x = -.5 * -6
x=3
Choice B.... 3
Step-by-step explanation:
Use a graphical method to find estimates for the solutions of the simultaneous equations x^2 + y^2=2.25 y-x=1
NEED ASAP WILL MARK AS BRAINLIEST
Answer:
A) which graph represents the equation x^2 + y^2 = 2.25?
First, the general equation for a circle can be written as:
(x - a)^2 + (y - b)^2 = R^2
This is a circle of radius R centered in the point (a, b).
Then we can rewrite our equation as:
(x - 0)^2 + (y - 0)^2 = (√2.25)^2 = (1.5)^2
Then we have a circle centered at the point (0, 0) and with a radius equal to 1.5
Then we can see that the correct one is graph C.
b) Now we want to solve the system:
x^2 + y^2 = 2.25
y - x = 1
graphically.
To do it we need to graph both equations and see in which points do they intersect.
We already have the first equation graphed, so we only need to also graph the linear equation:
y - x = 1
y = 1 + x
An example of this can be seen in the graph below:
There we can estimate one of the intersections as (0.4, 1.4) and the other as (-1.4, -0.4)
Identify the slope and the y-intercept of the following equation 1/2x - 1 = y
b =
m =
uto: Which is the “first point” given, the slope or the y-intercept ?
Answer:
see below
Step-by-step explanation:
Our equation is y = 1/2x - 1. This mirrors our standard linear parent function of y = mx + b.
m is the slope and b is the y-intercept.
From this, we can see that
m = 1/2
and
b = -1.
The first point given is the y-intercept because with y-intercepts, we know the coordinates right away. A y-intercept's coordinates will always have an x-value of 0. This allows it to lie on the y-axis, hence the name. Our y-value of the coordinates is given with the b value of the equation. Therefore, by simply looking at the end of the equation, we know our first point.
Hope this helps!
Find the radius when d=18
Answer:
9
Step-by-step explanation:
radius is half of the diameter
Please help me I’m not smart
and this test is due in one hour.
Answer:
the pitch of the sound
Step-by-step explanation:
because the speed stays the same and the echo has the same variables so i believe it is the pitch
help and explain your thinking please
Answer:
y=mx+b
Step-by-step explanation:
the equation would be y= 3/4 + 3
the rise is 3
the run is 4
the line runs through 3 on the y intercept.
13- (-9)
explain how you got this answer
16+ only please answer this
Answer:
22
Step-by-step explanation:
double negative is a plus sign
13--9=22
Answer: 22
Step-by-step explanation:
Here, we need to know the concept of changing signs. Under any circumstances, if there is a "-" sign outside of parenthesis, the signs inside need to be the opposite. If you are still not very clear, I can provide some examples below:
1-(+1) ⇒ there is a "-" sign, so we need to convert the sign inside "+" to "-" ⇒ 1-1 ⇒ 02-(-1) ⇒ there is a "-" sign, so we need to convert the sign inside "-" to "+" ⇒ 2+1 ⇒ 3-------------------------------------------------------
Given
13 - (-9)
⇒There is a "-" sign outside
⇒We need to convert the sign inside "-" to "+"
⇒13+9
⇒22
Hope this helps!! :)
Please let me know if you have any questions
A consultant for a major computer company receives $3250 per month as a fee no matter how many hours he works. Using x to represent the number of hours the consultant works each month, write a function, f, in symbolic form to represent the total amount the consultant recieves each month.
Answer:
The function is;
f(x) = $3,250
Step-by-step explanation:
The fixed amount the consultant receives each month = $3,250
The number of hours the consultant works each month = x
Let f(x) represent the function of the total amount the consultant receives each month
Therefore;
The function f(x) = The total amount the consultant receives each month = The fixed amount the consultant receives = $3,250
∴ f(x) = $3,250.
The function 'f' which represents the total amount the consultant receives each month is f(x) = $3,250 (Given that the consultant receives a constant amount each month).