Answer:
The correct option is;
f(x) = 3·sin x/8·π + 2
Step-by-step explanation:
The given parameters for the sinusoidal function are;
Amplitude of oscillation = 3
Frequency of oscillation = 1/8·π
Midline of oscillation= 2
The general form of sinusoidal equation is y = A·sin(B(x - C)) + D
Where;
A = The amplitude
B = The frequency
C = The horizontal shift
D = The midline or vertical shift
Substituting the given values into the general form of sinusoidal equation, we have;
f(x) = y = 3·sin(1/8·π(x - 0)) + 2 = 3·sin(x/8·π) + 2
Which gives;
f(x) = 3·sin(x/8·π) + 2.
I need answer in degrees! Thank you to anyone who answers ;P.
Answer:
x = 84
Step-by-step explanation:
Sum of angles around a point = 360
Sum of given angles = 132+54+90 = 132+144 = 276
So, x must cover the angle remaining from 276 to form 360, which is
360-276 = 84degrees.
Hope this helps
Answer:
84 DEGREES
Step-by-step explanation:
SO WE KNOW THAT THER IS 132 +54 DEGREES AND THAT THE 3RD ONE IS A RIGHT ANGLE
SO
132+90+54=276
360-276=84
HOPE I HELPED
PLS MARK BRAINLIEST
DESPERATELY TRYING TO LEVEL UP
✌ -ZYLYNN JADE ARDENNE
y2 + 15y +56 = (y + 7)(y+)
y +7
y - 7
y-8
y - 8
Find the number after y+
y^2 + 15y + 56 factors to (y+7)(y+8)
This is because 7+8 = 15 is the middle term and 7*8 = 56 is the last term. We can use the box method, FOIL rule, or distributive property to confirm we have the right factorization. I'll use the distributive rule
(y+7)(y+8) = y(y+8) + 7(y+8)
(y+7)(y+8) = y^2 + 8y + 7y + 56
(y+7)(y+8) = y^2 + 15y + 56
31. Five more than twice a number is three
times the difference of that number and
two. What is the number?
Answer: 5(x+3)(x-2)
Step-by-step explanation:
just read closely and pay attention in class.
A rectangular piece of paper has an area of 24 square inches. You trim the paper so that it fits into a square frame by trimming 3 inches from the length and 1 inch from the width of the paper. Write and solve an equation to find the side length of the resulting square paper.
Answer:
Length of the square = 3 inches
Equation: [tex]l = L - 3[/tex] and [tex]l = W - 1[/tex]
Step-by-step explanation:
Given
Area of the rectangle = 24
Required
Length of the square when the dimension of the rectangle is trimmed by 3 inches * 1 inches
Represent the dimension on the rectangle by L and W
Such that L represent Length and W, Width
This implies that
[tex]L * W = 24[/tex]
Represent the length of the rectangle by l
Such that
[tex]l = L - 3[/tex] and [tex]l = W - 1[/tex] (When trimmed)
Equate both expressions
[tex]L - 3 = W - 1[/tex]
Add 3 to both sides
[tex]L - 3 + 3 = W - 1 + 3[/tex]
[tex]L = W + 2[/tex]
Next is to list all possible dimensions of the rectangle;
[tex]Area(L,W) = Length * Width[/tex]
[tex]Area(24,1) = 24 * 1 = 24[/tex]
[tex]Area(12,2) = 12 * 2 = 24[/tex]
[tex]Area(8,3) = 8 * 3 = 24[/tex]
[tex]Area(6,4) = 6 * 4 = 24[/tex]
From the list above, the only calculation that fits our solution is
[tex]Area(6,4) = 6 * 4 = 24[/tex]
Such that
[tex]6 = 4 + 2[/tex]
By direct comparison of [tex]6 = 4 + 2[/tex] to [tex]L = W + 2[/tex];
[tex]L = 6[/tex]
[tex]W = 4[/tex]
Recall that
[tex]l = L - 3[/tex] and [tex]l = W - 1[/tex]
Substitute 6 for L and 4 for W
[tex]l = 6 - 3[/tex] and [tex]l = 4 - 1[/tex]
[tex]l = 3[/tex] in both cases
Hence, the length of the square is 3 inches
And the equation is [tex]l = L - 3[/tex] and [tex]l = W - 1[/tex]
Find the value of each trigonometric ratio.
Answer:
12 / 37 (or:=0.324324324...)
Step-by-step explanation:
Sinθ = opposite / hypotenuse
Hence
sinA = 12 / 37
(=0.324324324...)
Answer:
A = 19
Step-by-step explanation:
sin A = opp/hyp
sin A = 12/37
A = sin- ¹ 12/37
A= 18.92 or 19
The solution for x2 + 2x + 8 ≤ 0 is
Answer:
Please use " ^ " for exponentiation: x^2 + 2x + 8 ≤ 0.
Let's solve this by completing the square:
x^2 + 2x + 8 ≤ 0 => x^2 + 2x + 1^2 - 1^2 + 8 ≤ 0. Continuing this rewrite:
(x + 1)^2 + 7 ≤ 0
Taking the sqrt of both sides: (x + 1)^2 = i*sqrt(7)
Then the solutions are x = -1 + i√7 and x = -1 - i√7
There's something really wrong here. I've graphed your function, x^2 + 2x + 8, and can see from the graph that there are no real roots, but only complex roots. Please double-check to ensure that you've copied down this problem correctly.
Answer:
B. The Empty Set
Step-by-step explanation:
Hope this helps!!! Have a great day!!!! : )
paid after the grace period, on average, more than 4 times in 2018, what are the null and alternative hypotheses? Select the correct answer below: H0: μ=4; Ha: μ>4 H0: μ>4; Ha: μ=4 H0: μ=4; Ha: μ<4 H0: μ=4; Ha: μ≠4
Answer:
H₀: μ = 4 vs. H ₐ: μ > 4
Step-by-step explanation:
A null hypothesis is a sort of hypothesis used in statistics that intends that no statistical significance exists in a set of given observations.
It is a hypothesis of no difference.
It is typically the hypothesis a scientist or experimenter will attempt to refute or discard. It is denoted by H₀.
Whereas, the alternate hypothesis is the contradicting statement to the null hypothesis.
The alternate hypothesis describes direction of the hypothesis test, i.e. if the test is left tailed, right tailed or two tailed.
It is also known as the research hypothesis and is denoted by H ₐ.
In this case we need to test whether the amount is paid after the grace period, on average, more than 4 times in 2018.
The hypothesis can be defined as follows:
H₀: μ = 4 vs. H ₐ: μ > 4
Find the derivative of f(x) = negative 9 divided by x at x = -4. 4 divided by 9 16 divided by 9 9 divided by 16 9 divided by 4
Answer:
ᅠᅠᅠᅠᅠᅠᅠᅠ
Step-by-step explanation:
ᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠ
Answer:
9/16
Step-by-step explanation:
I REALLY need help with this! Could someone please help me?
Answer:
It's the first option
Step-by-step explanation:
The Midsegment Theorem states that the segment connecting the midpoints of two sides of a triangle (in this case AB and AC) is parallel to the third side (BC) and half as long.
Can somebody please help me with this
Step-by-step explanation:
1x²-8x+15= 0
x²-2*1*4*x+ 16-1=0
x²-2*1*4*x+4² = 1
(x-4)² = 1
x-4 =1 or x-4= -1
x= 5 or x=3
so the solutions are 5 and 3
2r²+18r+56=0
r²+2*1*9*r+ 81-25=0
r²+2*1*9*r+9² = 25
(r+9)² = 25
r+9 = 5 or r+9 = -5
r= -4 or r = -14
so the solutions are -4 and -14
3x²+2x-24=0
x²+2*1x +1-25=0
x²+2*1*x+1² = 25
(x+1)² = 25
x+1= 5 or x+1= -5
x = 4 or x= -6
so the solutions are 4 and -6
4p²+12p-54 = 0
p²+2*6*p+36-90=0
p²+2*6*p+6² = 90
(p+6)² = 90
p+6 = √90 or p+6 = -√90
p = √90-6 or p= -√90-6
5m²-6m-55= 0
m²-2*3*m+3²-64=0
(m-3)² = 64
m-3 = 8 or m-3 = -8
m= 11 or m= -5
PLEASE help me with this question! REALLY URGENT...
To study the effect of naps on student grades, two experimental treatments are planned: an eight-hour school day with a one-hour nap for one group
versus and eight-hour school day with a 30-minute nap for another. Which of the following groups would serve best as a control for this study?
A third group that takes a one-hour nap or a 30-minute nap randomly each day
A third group that shortens the school day to six hours
A third group in which no naps occur
A third group that splits the day with a 30-minute nap in the morning and a 30-minute nap in the afternoon
A third group in which each student chooses either a 30-minute nap or a one-hour nap
Answer:
A third group in which no naps occur
Step-by-step explanation:
Control group: In a study or an experiment, the term "control group" is described as a specific group that doesn't receive or being provided any sort of treatment by the investigator or researcher ans therefore used as a particular benchmark or criteria to analyze or measure the way other tested participants do. It is generally used as a specific strategy that minimized the effects of different variable except independent variable.
Answer:
above is correect. i took the test.
Step-by-step explanation:
Please help I’m being timed!! The computer rendering of a mural in a town’s square uses the function represented in the table to define the outline of a mountain in the town’s logo, where x is the distance in feet from the edge of the mural and f(x) is the distance from the ground in feet. How can the point (12, 16) be explained? A) The highest point of the mountain defined by the function is 12 feet. B) The highest point of the mountain defined by the function is 16 feet. C) The width of the base of the mountain defined by the function is 12 feet. D) The width of the base of the mountain defined by the function is 16 feet.
Answer:
The correct option is;
B) The highest point of the mountain defined by the function is 16
Step-by-step explanation:
From the given information, we have;
The distance in feet from the edge of the mountain is given as the independent variable, x
The distance in feet from the ground (which is the height) is given the as the dependent variable f(x)
Therefore, given that the point (12, 16) are the values of x and f(x) such that x = 12 and f(x) = 16 and 16 is the largest value of f(x) in the data, therefore, 16 represents the highest defined point of the mountain.
An actor invests some money at 8% simple interest, and $21 comma 000 more than four times the amount at 10% simple interest. The total annual interest earned from the investment is $49 comma 140. How much did he invest at each amount? Use the six-step method.
Answer:
First investment = $98000
Second = $413,000
Step-by-step explanation:
Given the following :
Investment 1:
Let first investment = f
Rate = 8% = 0.08
Investment 2:
$21,000 more than 4 times of investment 1:
4f + 21000
Rate = 10% = 0.1
Total annual interest earned from both :
$49,140
Interest on investment 1 + interest on investment 2 = $49,140
To solve:
Simple Interest = principal * rate * time
Time = 1 year
Total interest = (f * 0.08 * 1) + ((4f + 21000) * 0.1 * 1)
49140 = 0.08f + 0.4f + 2100
0.48f = 47040
f = 47040 / 0.48
f = 98000 = first investment
Second investment :
4f + 21000
= 4(98000) + 21000
= $413,000
Let h=v0^2/4.9 sin theta cos theta . Model the horizontal distance in meters traveled by a projectile. If the initial velocity is 36 meters/second, which equation would you use to find the angle needed to travel 100 meters? a. 264.49sin(20)=100 b. 132.12sin(20)=100 c. 100sin(20)=100 d. 7.36sin(20)=100
Answer:
B. [tex]100 = 132.12sin2\theta[/tex]
Step-by-step explanation:
Given the horizontal distance in meters traveled by a projectile modeled by the function [tex]h = \frac{v_o^{2} }{4.9}sin\theta cos\theta[/tex]. If the initial velocity is 36 meters/second, the equation we would you use to find the angle needed to travel 100 meters is shown below;
[tex]h = \frac{v_o^{2} }{4.9}sin\theta cos\theta[/tex]
from trigonometry identity,
[tex]sin2\theta = 2sin\theta cos\theta\\sin\theta cos \theta = \frac{sin2\theta}{2}[/tex]
The equation will become;
[tex]h = \frac{v_o^{2} }{2*4.9}(sin2\theta)\\[/tex]
[tex]h = \frac{v_o^{2} }{2*4.9}sin2\theta[/tex]
Given h = 100 meters and v = 36 m/s
[tex]100 = \frac{36^{2} }{9.8}sin2\theta\\100*9.8 = 1296sin2\theta\\100 = \frac{1296}{9.8} sin2\theta\\100 = 132.12sin2\theta[/tex]
Answer:
132.12sin(2theta)=100
Step-by-step explanation:
HELP WILL GIVE 50 POINTS AND BRAINLIEST Graph y>−54x+5.
Answer:
see below
Step-by-step explanation:
y>−5/4x+5
The y intercept is 5
The x intercept is
0 = -5/4x +5
-5 = -5/4x
-5 *-4/5 =- 5/4x *-4/5
4 =x
The x intercept is (4,0)
The line is dotted since there is no equals sign
We shade above the line
What is the critical value for a 99% confidence level, assuming a right-tailed test? Please provide an explanation! I can't figure this out at all.
Answer:
A 99% confidence level is saying that you are 99% positive that you null hypothesis will not be rejected. The critical value that comes with the confidence level is the Z-score. The Z-score can usually be found using the Z-score table found online. The Z-score for 99% confidence is 2.575. If they give you the Z-score and tell you to find it on a right tail graph you subtract the given z-score from alpha which is .5 and find what you got on the z-score table.
Ex: Given Z-score- 0.0079
.0079 - .5(alpha)= 0.4921.
The closest area to 0.4921 is 0.4922 at z = 2.42.
Hope this helps
area and volume of cylinder 25 points ****
Answer:
Surface Area: 150.796
Volume: 141.372
Step-by-step explanation:
Cylinder Surface Area: 2Πrh+2Πr^2
r=3
h=5
2Π15+2Π9=30Π+18Π=48Π=150.796
Volume: Πr^2h
Π45=141.372
Hope this helps! BRAINLIEST would really help me:)
Answer:
150.8 units²
141.37 units³
Step-by-step explanation:
Surface area of cylinder:
[tex]2 \pi r^2+2 \pi rh[/tex]
[tex]r=3\\h=5[/tex]
[tex]2 \pi (3)^2+2 \pi (3)(5)[/tex]
[tex]18\pi +30\pi[/tex]
[tex]=150.8[/tex]
Volume of the cylinder:
[tex]\pi r^2 h[/tex]
[tex]r=3\\h=5[/tex]
[tex]\pi (3)^2 (5)[/tex]
[tex]45\pi[/tex]
[tex]=141.37[/tex]
What is the slope of the line in the graph? A.y−0=2(x+18) B.y+4=2(x−7) C.y+7=2(x−4) D.y=2x−7
Answer:
5/10 or 1/2
Step-by-step explanation:
Slope is change in y over change in x. In this case every time y goes up by 5 x goes up by 10 making the slope 5/10 and if it is simplified 1/2
What the answer now fast correct
Answer:
12.6 units.
Step-by-step explanation:
According to cosine formula:
[tex]a^2=b^2+c^2-2bc\cos A[/tex]
Using cosine formula in triangle STU, we get
[tex](SU)^2=(ST)^2+(TU)^2-2(ST)(TU)\cos T[/tex]
[tex]t^2=(5)^2+(15)^2-2(5)(15)\cos (53^{\circ})[/tex]
[tex]t^2=25+225-150(0.60)[/tex]
[tex]t^2=160[/tex]
Taking square root on both sides.
[tex]t=\sqrt{160}[/tex]
[tex]t\approx 12.6[/tex]
Therefore, the value of t is 12.6 units.
The line’s graphed below are perpendicular. The slope of the red line is -1/3. What is the slope of the green line?
Answer:
C. 3
Step-by-step explanation:
Perpendicular lines have slopes that are negative inverses of the other.
This inverse of -1/3 is -3. The negative of -3 is 3.
The slope of the perpendicular line is 3.
Which phrase best describes f(x), graphed on the coordinate plane below?
f(x) is an odd function.
f(x) is an even function.
f(x) is both odd and even
f(xl is neither add nor even
Answer: f(x) is an odd function
Step-by-step explanation: The major characteristic of odd functions is that one end of the graph goes down to negative infinity, the other end goes up to positive infinity.
Answer:
f(x) is an odd function.
Step-by-step explanation:
Please help asap! I don’t really understand
Answer:
x² +3x -8x -24(x² +3x) +(-8x -24)x(x +3) -8(x +3)(x +3)(x -8)Step-by-step explanation:
This is trying to help you understand a method of factoring trinomials.
The first step is to look at the linear term (-5x) and the constant term (-24) and identify the coefficients and their signs: -5 and -24.
The next step is to identify factors of -24 (the constant) that have a sum equal to -5 (the linear term coefficient). We can look at the ways that -24 can be factored:
-24 = 1(-24) = 2(-12) = 3(-8) = 4(-6)
The sums of these factor pairs are 1-24=-23, 2-12=-10, 3-8=-5, 4-6=-2. Of course, the pair we're looking for is +3 and -8.
The next step from here is to rewrite the linear term using these factors. (-5x=3x-8x) This is the first step of the sequence shown in the figure:
x² +3x -8x -24
The next step is to group these terms in pairs:
(x² +3x) +(-8x -24)
And then, to factor each pair using the distributive property:
x(x +3) -8(x +3)
Finally, finish the factoring, again using the distributive property:
(x +3)(x -8)
Marguerite wants to rent a carpet cleaner. Company A rents a carpet cleaner for $15 per day. Company B rents a carpet cleaner for $100 per week, with a one-time fee of $5. The following functions represent the rate structures of the two rental companies: x = the number of weeks Company A f(x) = 15(7x) Company B g(x) = 100x + 5 The function h(x) = f(x) – g(x) represents the difference between the two rate structures. Determine which statements about h(x) and about renting a carpet cleaner are true. Check all that apply. h(x) = 5x – 5 h(x) = 5x + 5
Answer:
If Marguerite rents for 2 weeks, it will cost her less if she rents from Company B
If Marguerite rents for 1 week, it will cost her the same at either company
h(x) = 5x - 5
Step-by-step explanation:
Marguerite wants to rent a carpet cleaner. Company A rents a carpet cleaner for $15 per day. Company B rents a carpet cleaner for $100 per week, with a one-time fee of $5. The following functions represent the rate structures of the two rental companies: x = the number of weeks Company A f(x) = 15(7x) Company B g(x) = 100x + 5 The function h(x) = f(x) – g(x) represents the difference between the two rate structures. Determine which statements about h(x) and about renting a carpet cleaner are true. Check all that apply. If Marguerite rents for 2 weeks, it will cost her more if she rents from Company B. If Marguerite rents for 2 weeks, it will cost her less if she rents from Company B. If Marguerite rents for 1 week, it will cost her the same at either company. If Marguerite rents for 1 week, it will cost her more if she rents from Company A. h(x) = 5x – 5 h(x) = 5x + 5
Answer: Company A rents a carpet cleaner for $15 per day. Company B rents a carpet cleaner for $100 per week, with a one-time fee of $5. In one week there are 7 days, therefore in x weeks the cost of rentals are given below:
For company A: f(x) = 15(7x)
For company B: g(x) = 100x + 5
h(x) = f(x) – g(x) represents the difference between the two rate structures.
h(x) = f(x) - g(x) = 15(7x) - (100x + 5)
h(x) = 105x - 100x - 5
h(x) = 5x - 5
If Marguerite rents for 2 weeks:
The cost for company A = 15(7x) = 15(7 × 2) = $210
The cost for company B = 100x + 5 = 100(2) + 5 = 200 + 5 = $205
If Marguerite rents for 2 weeks, it will cost her less if she rents from Company B
If Marguerite rents for 1 weeks:
The cost for company A = 15(7x) = 15(7 × 1) = $105
The cost for company B = 100x + 5 = 100(1) + 5 = 100 + 5 = $105
If Marguerite rents for 1 week, it will cost her the same at either company
Answer:
If Marguerite rents for 2 weeks, it will cost her less if she rents from Company B.
h(x) = 5x + 5
those are the answers on edge
Step-by-step explanation:
please Linear system fill in the blanks please help 55 point * please please please help
Answer:
a) Vertex b) Maximum c) Axis of symmetry d) Linear e) x-intercept f) Parabola g) Minimum h) Quadratic i) Down
Answer:
[tex]\boxed{\mathrm{view \: explanation}}[/tex]
Step-by-step explanation:
d) The first difference of a quadratic sequence will be a linear sequence.
h) The second difference of a quadratic will be constant.
i) image attached
Use the interactive number line to find the sum.
-5.5 + 3.7 =
Answer: -1.8
Step-by-step explanation:
Start at -5.5 and move the point on the number line up 3.7 spaces.
Hope it helps <3
Answer:
Your correct answer is -1.8
Step-by-step explanation:
−5.5 + 3.7
= −5.5+3.7
= −1.8
no clue how to do this, someone pls help
Answer:
6π
Step-by-step explanation:
First we need to find the circumference of the circle. We know that the radius is 4 and the formula is πd or 2πr
Leaving it in terms of pi, the circumference is 8π
Now we need to find the length of the arc.
Since the missing part of the circle is labeled with a right angle, we know that it's exactly 1/4 of the whole circle. That means the arc we need to find is 3/4 of the circumference.
3/4 of 8π is 6π
____________________________________________________________________
Bennett brings 3 gallons of water to his football game. His teammate, Jordan, brings 3 times as many gallons of water as Bennett. If one gallon of water contains 128 fluid ounces, how many ounces of water did Bennett and Jordan bring to their football game?
Answer:
It could be 768 fl. oz I think?
Step-by-step explanation:
Bennett has 3 gallons of water and Jordan has 3 times as many gallons as bennett
Let's calculate how many gallons do Jordan has
3*3 = 9Jordan has 9 gallons of water
every gallon of water contains 128 fluid ounces
BenettBenett has 3 gallons
so the fluid ounces are given by : 3*128=384
Benett has 384 ounces
JordanJordan has 9 gallons so 9*128 = 1152
so Jordan has 1152 fluid ounces
Find the length, x,of the third side of the triangle.
====================================================
Explanation:
This is a visual example of the pythagorean theorem. We add the areas of the two squares to get
13+29.25 = 42.25
Then we apply the square root to this to get the value of x, which is the hypotenuse of the right triangle
x = sqrt(42.25) = 6.5
---------
Side note: if you're curious about finding the other lengths of the triangle, apply the square root to those areas. The blue area 29.25 will lead to a side length of approximately sqrt(29.25) = 5.4083269; the red square will follow the same idea.
Answer:
Step-by-step explanation:
area of a square=a²
A=29.25
a=side=√29.25 first square
second square =a=√13
find x(c)
right triangle: a²+b²=c²
(√29.25 )²+(√13)²=c²
29.25+13=c²
c=√(29.25+13)=6.5 unit
parallelogram missing find x
Answer:
It's 22
Step-by-step explanation:
The height isn't important. The 2 opposite sides are always equal in a parallelogram.
Answer:
22
Step-by-step explanation:
The quadrilateral is a parallelogram.
A parallelogram has opposite sides equal.
x is equal to the length of the base.
x = 22