I am authoring you to offer free insurance for a year the regular price is 6.99 this will save the customer almost_ a year
Simplify the trigonometric expression cos(2x)+1 using Double-Angle identities
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Answer:
C. 2cos²(x)
Step-by-step explanation:
The relevant identities are ...
cos(2x) = cos²(x) -sin²(x)
cos²(x) = 1 -sin²(x)
__
Then the expression can be simplified to ...
cos(2x) +1 = (cos²(x) -sin²(x)) +1 = cos²(x) +(1 -sin²(x)) = cos²(x) +cos²(x)
= 2cos²(x)
Which number can be distributed across two terms
inside parentheses? 3/5 V
X-6
18-4x-1
5
tep 2 Combine like terms that are on the same side of
the equation. Which terms can be combined?
18 and -1
3/5x and 4x
6 and 1
Check
Intro
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Answer:
3/5 can be distributed (correct answer is shown)18 and -1 can be combinedStep-by-step explanation:
The only factor outside parentheses that contain 2 terms is the factor 3/5. It can be distributed. (The correct response is shown.)
3/5 can be distributed
__
The only like terms that reside on the same side of the equal sign are ...
18 and -1
The 450 juniors at East HS drink a total of 1500 cartons of milk per 5-day week. If the average senior drinks milk at the same rate as the average junior, what is the average number of total cartons of milk the 600 seniors drink each school day?
Answer:
I believe it’s 900
Step-by-step explanation:
Find out how much milk per student for one day then time 5 the times 600 if I’m wrong please let me know
The average number of total cartons of milk the [tex]600[/tex] seniors drink each school day will be [tex]400[/tex].
What is average?The average is the sum of the numbers divided by total numbers .
We have,
Number of juniors [tex]=450[/tex]
Number of Seniors [tex]=600[/tex]
And,
Cartons of milk Juniors drink in [tex]5[/tex] days [tex]=1500[/tex] cartoons
So,
Cartons of milk Juniors drink in [tex]1[/tex] day [tex]=\frac{1500}{5} =300[/tex]
So,
The average Cartons of milk Juniors drink in [tex]1[/tex] day [tex]=\frac{300}{450} =\frac{2}{3}[/tex]
And,
According to the question,
The average Cartons of milk Juniors drink in [tex]1[/tex] day [tex]=[/tex] The average Cartons of milk Seniors drink in [tex]1[/tex] day
i.e.
The average Cartons of milk Seniors drink in [tex]1[/tex] day [tex]=\frac{2}{3}[/tex]
So,
Number of total cartons of milk the [tex]600[/tex] seniors drink each school day [tex]=\frac{2}{3}*600=400[/tex]
Hence we can say that the average number of total cartons of milk the [tex]600[/tex] seniors drink each school day will be [tex]400[/tex].
To learn more about average click here
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Drag each tile to the correct location on the image. Each tile can be used more than once, but not all images will be used.
Consider function f.
f(x) = 3√8x+4. PLZ HELP
Answer:
Switch x and y, and solve for y
[tex]f^{-1}(x) =\frac{(x -4)^3}{8}[/tex]
Step-by-step explanation:
Given
[tex]f(x) = 3\sqrt{8x} + 4[/tex]
Required
Complete the steps to determine the inverse function
Solving (a): Complete the blanks
Switch x and y, and solve for y
Solving (b): Determine the inverse function
[tex]f(x) = \sqrt[3]{8x} + 4[/tex]
Replace f(x) with y
[tex]y = \sqrt[3]{8x} + 4[/tex]
Switch x and y
[tex]x = \sqrt[3]{8y} + 4[/tex]
Now, we solve for y
Subtract 4 from both sides
[tex]x -4= \sqrt[3]{8y} + 4-4[/tex]
[tex]x -4= \sqrt[3]{8y}[/tex]
Take cube roots of both sides
[tex](x -4)^3= 8y[/tex]
Divide both sides by 8
[tex]\frac{(x -4)^3}{8} = y[/tex]
So, we have:
[tex]y =\frac{(x -4)^3}{8}[/tex]
Hence, the inverse function is:
[tex]f^{-1}(x) =\frac{(x -4)^3}{8}[/tex]
Answer:
x
y
f^-1(x)= 1/8(x-4)^3 (plug in choices to match)
Step-by-step explanation:
You see, the guy above me already got it right. 1/8(x-4)^3 and (x-4)^3/8 are essentially the same thing. The only difference is either dividing by 8 and multiplying by 1/8, and that's only a visual difference.
Find the scale factor where the pre-image is the large triangle and the image is the small triangle.
A. 4/5
B. 3/2.4
C. 2.4/3
D. 5/4
Answer:
Option B
Step-by-step explanation:
If the larger triangle (Preimage) is dilated by a scale factor 'k' to form the image triangle (small triangle),
Scale factor = [tex]\frac{\text{Length of one side of the image triangle}}{\text{Length of one side of the preimage}}[/tex]
k = [tex]\frac{3}{2.4}[/tex]
Therefore, Option B will be the correct option.
Người ta thống kê được rằng mỗi chuyến bay có chừng 0,5% hành khách bị mất hành lí và giá trị trung bình mà khách đòi bồi thường cho mỗi hành lí bị mất là 1 triệu đồng. Một dịch vụ muốn tăng thêm giá vé để bù đắp cho số chi phí này.Vậy nên tăng thêm giá mỗi vé là bao nhiêu ?
Answer:
tăng lên 5.000 nghìn đồng
Step-by-step explanation:
mỗi chuyến bay có 0.5% hành khách mất hành lí
mỗi người đòi bồi thường 1.000.000 đồng
do đó vẽ mỗi người tăng lên :0.5%×1.000.000=5.000
Solve equation by using the quadratic formula
Answer:
x = -2
Step-by-step explanation:
x^2 + 4x + 4 = 0
quadratic formula:
-b +or- sqrt(b^2-4ac)/2a
-4 +/- sqrt ((-4)^2-4*1*4)/2*1
-4+/- sqrt(16-16) / 2
-4 +/- 0 / 2
-4/2
-2
Rewrite the fraction in the sentence below as a percentage. From 125 yards away, a marksman hit 11/20 of the targets last year.
Answer:
Step-by-step explanation:
11/20 = 55/100 = 55%
12,963 rounded to the nearest hundredth
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Answer:
12,963.00 (in the US)12,96 (some other places)Step-by-step explanation:
In the US, a decimal point is represented by a period. This value is interpreted as an integer with no fractional part, so the fractional part is zero:
12,963.00
__
Some other places, a comma is used to identify the beginning of the decimal fraction. In that form, this number has a fractional part that has 3 as its thousandths digit. The value of 3 is less than 5, so the number is simply truncated at the hundredths place.
12,96
If the thousandths digit were 5 or greater, then 1 hundredth would be added to the truncated number.
Yogi is 6 years older than Michelle. The sum of their ages is 26. Write a system of linear equations to represent this information. What are their ages?
Answer:
10 and 16, x+(x+6)=26
Step-by-step explanation:
Michelle has an age we don't know, so we put her age as x.
Yogi is 6 years older than her, so her age is x+6
Michelle=x
Yogi=x+6
we know both their ages equal 26. so we set it up as
x+(x+6)=26
combining like terms we get
2x+6=26
subtract 6 from both sides
2x=20
divide both sides by 2
x=10
now that we have the value for x, we plug it into their original ages
Michelle is 10, because her age is just x.
Yogi is 16, because her age is x+6
Use appropriate algebra and Theorem 7.2.1 to find the given inverse Laplace transform. (Write your answer as a function of t.)
(s + 1)3
Expand the expression as
(s + 1)³/s ⁵ = (s ³ + 3s ² + 3s + 1)/s ⁵
… = 1/s ² + 3/s ³ + 3/s ⁴ + 1/s ⁵
Then taking the inverse transform, you get
LT⁻¹ [1/s ² + 3/s ³ + 3/s ⁴ + 1/s ⁵]
… = LT⁻¹ [1/s ²] + LT⁻¹ [3/s ³] + LT⁻¹ [3/s ⁴] + LT⁻¹ [1/s ⁵]
… = LT⁻¹ [1!/s ²] + 3/2 LT⁻¹ [2!/s ³] + 1/2 LT⁻¹ [3!/s ⁴] + 1/24 LT⁻¹ [4!/s ⁵]
… = t + 3/2 t ² + 1/2 t ³ + 1/24 t ⁴
Miles recorded his height, in inches, from age 10 to age 18, as shown in the table. Age, x 10 11 12 13 14 15 16 17 18 Height, y 54 58 61.5 64.5 68 70 73 74 74.5 What is the square root function that best models this set of data?
Answer: Y=10.76 √(x-9.12)+43.64
Step-by-step explanation:
Please help!
I will be giving 20 points
Also give small explanations if needed
What is 5x4 please help
Answer:
5 x 4 = 20.
Step-by-step explanation:
5 + 5 = 10
5 + 10 = 15
5 + 15 = 20!
Please mark brainliest!
- KanaKittyKat
Answer:
5 x 4 = 20
5 + 5 + 5 + 5 = 20
What are the Values for x,y,z?
Answer:
it can be any number1234567890
Need help ASAP
In the figure, if the measure of ∠8 = 72o, what's the measure of ∠14?
Four Bisecting Lines
Question 3 options:
108°
72°
98°
62°
Answer:
72°
Step-by-step explanation:
[tex] m\angle \: 6 = m \angle \: 8 \\ (corresponding \: \angle s) \\ m\angle \: 8 = 72 \degree \\ \therefore \: m\angle \: 6 = 72 \degree \\ \\ m\angle \: 14 = m \angle \: 6 \\ (corresponding \: \angle s) \\\therefore \: m\angle \: 14 = 72 \degree [/tex]
Donald has x twenty dollar bills and 1 yen dollar bill. How much money does Donald have?
Write your answer as an expression
What are the domain and range of the function represented by the table?
X
-1
-0.5
0
0.5
1
y
3
4
5
6
7
A. Domain: -1 sxs 1
Range: y2 3
B. Domain: -1sxs1
Range: 3, 4, 5, 6, 7}
C. Domain:{-1, -0.5, 0, 0.5, 1}
Range: {3, 4, 5, 6, 7}
D. Domain:{-1,-0.5, 0, 0.5, 1}
Range: y23
What is the length of CD? In this diagram, AABC ~ AEDC. 20-% c * 7 21
Answer:
[tex]\frac{BC}{DC}=\frac{AC}{EC}[/tex]
[tex]\frac{20-x}{x} =\frac{21}{7}[/tex]
[tex]\frac{20-x}{x} =3[/tex]
[tex]20-x=3x[/tex]
[tex]4x=20[/tex]
[tex]x=5[/tex]
[tex]So, CD=5[/tex]
OAmalOHopeO
Find x so that the distance between the points (1,2) and
(x, -10) is 13
Answer:
x = -4 or 6
Step-by-step explanation:
12^2 + (1-x)^2 = 13^2
(1-x)^2= 13^2 - 12^2
(1-x)^2= 25
1-x = 5
x = -4 or 6
Graph the line with slope
3/4
passing through the point (-1, 4).
Answer:
y=3/4x+19/4
Step-by-step explanation:
y=mx+c
4=3/4*-(1)+c
4=-3/4+c
c=4+3/4
c=19/4
y=3/4x+19/4
A machining center is in charge of producing 225 parts per day. The parts width. Any parts produced between 250mm and 260mm are considered gless than 250mm must be reworked at an additional cost of $8 per part. 260mm must be reworked at an additional cost of $2.50 per part. The varquantified as a standard deviation of 5.0mm. Measurements on these parhave the ability to set up the machine to achieve whatever mean width value you wish.
Required:
Setup a data table to determine the mean width setting that will minimize expected rework cost ($8 per small part and $2.50 per large part).
When a closed curve is parameterized by {x[t], y[t]}, then as you advance along the curve in the direction of the parameterization, which way do the tangent vectors {x'[t], y'[t]} at {x[t], y[t]} point; in the direction you are going, or in the direction opposite to the direction you are going?
Answer:
In the direction you are going,
Explanation:
We know that the tangent to {x[t], y[t]} are {x'[t], y'[t]}. Since {x'[t], y'[t]} are tangents at {x[t], y[t]}, we know that the tangent at a point is always parallel to the direction of the function at that point and in the direction of the function. So, the tangent vectors {x'[t], y'[t]} at {x[t], y[t]} point in my direction of motion as I move along the curve.
So, the tangent vectors {x'[t], y'[t]} at {x[t], y[t]} point in the direction you are going.
An angle measures 19.4° more than the measure of its complementary angle. What is the measure of each angle?
Answer:
37.8+52.2=90
Step-by-step explanation: x + (x + 14.4) = 90
2x + 14.4 = 90
2x = 75.6
x = 37.8 (one angle)
And (x + 14.4) = 52.2 (other angle).
I don’t know the answer!!
I’m new to this app and I need help if you know the answer please tell me I don’t know English very good please help me.
Answer:
A. 2.04 seconds
B. 5.92
C: 1.48 - 0.4 = 1.08 seconds
Step-by-step explanation:
~~~~~~~~~~~~~~~~~~~~~
USE THIS TO GET "B"
the f(-b/2a) is the highest point,
the vertex of the parabola [-b/2a, f(-b/2a)] will give you the time
and height of the highest point
~~~~~~~~~~~~~~~~~~~
USE THIS TO GET "A"... you will get two answers one will be negative
ignore that one , the positive one is the time to hit the ground
if you factor the equation (use the quadratic formula) you will get
the "zeros" that is where the ball is on the ground...
~~~~~~~~~~~~~~~~~~~~~~~
THIS IS FOR PART "C"
if you set the equation equal to 4.5 meters and factor that for the "zeros" you will get the two times that the ball is at that height.. subtract the two times for the duration
9 3/5 % as a decimal, rounded to 3 decimal places, is:
If a number is divisible by 6 and 8 then is it also divisible by 48?
Answer:
No
Step-by-step explanation:
Let's look at an example
24
24 is divisible by 6 24/6 = 4
24 is divisible by 8 24/8 = 3
24 is not divisible by 48 24/48 = 1/2 which is not an integer
I need this nowwww important
Answer:
7,7,12.5
Step-by-step explanation:
since we know that 2 sides are equal,
4x+1=5x-0.5
5x-4x=1+0.5
x = 1.5
sub x = 1.5 into the different eqns
4(1.5)+1 = 7
5(1.5)-0.5 = 7
9(1.5)-1 = 12.5
Which of the following is the solution of 2x + 14 = 22?
x = 4
O x=8
X = 11
OX= 14
Answer:
x=4
Step-by-step explanation:
2x + 14 = 22
Subtract 14 from each side
2x+14-14 = 22-14
2x = 8
Divide by 2
2x/2 = 8/2
x = 4
