Answer:
3.75 hours
Step-by-step explanation:
Given data
DIstance driven from Gary, Indiana to Indianapolis= 160 mile
Time taken= 2 1/2 hours or 2.5 hours
Speed= distance/time
Speed= 160/2.5
Speed= 64 miles per hours
We want to find the time it will take to drive 240 miles at the same speed
Time= distance/speed
Time= 240/64
Time= 3.75 hours
please help! i need answers
Answer:
I think 90°
Step-by-step explanation:
I was not good in maths that's why I'm not sure about this answer
7. Write the following expression in simplest form: -10 + 7a- 8a - 11 + 2a? + 6a
15 points and sorry
Answer:
2a+6a+7+8+10+11
Step-by-step explanation:
find the value of x.
Answer:
x=110°
Step-by-step explanation:
Sum of angles in a quadrilateral = 360°
360° - 128° - 40° - 82° = 110°
Answer:
x = 110
Step-by-step explanation
The sum of the interior angles of a quadrilateral = 360°
Sum the given angles and equate to 360
82 + 40 + 128 + x = 360
250 + x = 360 ( subtract 250 from both sides )
x = 110
On a number line, A is at -8 and B is at 2. What is the coordinate of C, which is 3/5 of the way from A to B?
Answer:
C is at -2
Step-by-step explanation:
distance from A to B is 10
10 × 3/5 = 6
add 6 to -8 to get -2
1.08 CREATE TRIGONOMETRIC MODELS
A cosine function has a period of 4, a maximum value of 20, and a minimum value of 0. The function is not a reflection of its parent function over the x-axis.
Which function could be the function described?
Answer:
○ [tex]\displaystyle f(x) = 10cos\:\frac{\pi}{2}x + 10[/tex]
Step-by-step explanation:
[tex]\displaystyle \boxed{f(x) = 10sin\:(\frac{\pi}{2}x + \frac{\pi}{2}) + 10} \\ \\ y = Asin(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 10 \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \hookrightarrow \boxed{-1} \hookrightarrow \frac{-\frac{\pi}{2}}{\frac{\pi}{2}} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{4} \hookrightarrow \frac{2}{\frac{\pi}{2}}\pi \\ Amplitude \hookrightarrow 10[/tex]
OR
[tex]\displaystyle y = Acos(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 10 \\ Horisontal\:[Phase]\:Shift \hookrightarrow 0 \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{4} \hookrightarrow \frac{2}{\frac{\pi}{2}}\pi \\ Amplitude \hookrightarrow 10[/tex]
The cosine graph in the photograph on the right is the OPPOCITE of the cosine graph in the photograph on the left, and the reason for this is because of the negative inserted in front of the amplitude value. Whenever you insert a negative in front of the amplitude value of any trigonometric equation, the whole graph reflects over the midline. Keep this in mind moving forward. Now, with all that being said, no matter how far the graph shifts vertically, the midline will ALWAYS follow.
**Moreover, both graphs have the same maximum and minimum value, but we are looking for the equation that will not reflect over the midline of [tex]\displaystyle y = 10,[/tex]which means we do NOT want a negative in front of the amplitude value, therefore we have this equation:
[tex]\displaystyle f(x) = 10cos\:\frac{\pi}{2}x + 10[/tex]
If you are having trouble figuring out which graph is which, just remember that the parent function of [tex]\displaystyle y = cos\:x[/tex]never touches the origin unless it shifts one unit south or gets reflected from somewhere. In this case, the photograph on the left touches the origin because of a reflection [negative symbol], therefore the photograph on the right matches the equation selected.
I am delighted to assist you at any time.
The correct function is,
⇒ y = 10 cos (π/2x) + 10
What is Function?A relation between a set of inputs having one output each is called a function.
Given that;
A cosine function has a period of 4.
Since, The period is 4.
Hence, The relationship between period and b (the coefficient of the independent variable of the cosine function) is, (period) =(2π/b).
Hence, We get;
⇒ 4b = 2π
⇒ b = 2π/4
⇒ b = π/2
So, Now our equation y = a cos (bx) + c becomes as;
⇒ y = 10 cos (π/2x) + 10
Thus, The horizontal center line of this cosine curve is y = 10. The maximum value of the curve is 20, which is 10 + 10, and the minimum value is 0, which is 10 - 10.
Learn more about the function visit:
https://brainly.com/question/28793267
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m - 4.21 = 87.654 What is the value of m
Answer:
91,864
Step-by-step explanation:
you welcome
thank god me
also youre
self:):D
2/3 of 21=? who wants to answer
Answer:
14
Step-by-step explanation:
Convert 21 to a fraction: 21/1
2x21= 42
3x1= 3
42/3= 14
3/3= 1
14/1 --> simplify to 14
what the slope and the y intercept for-12x+4y=-8
Answer:
slope is -3
y-intercept is -2
Step-by-step explanation:
put into slope-intercept form which is y = mx + b where 'm' is slope and 'b' is the y-intercept
12x + 4y = -8
4y = -12x - 8
y = -12/4x - 8/4
y = -3x - 2 (simplified)
Morning Donuts has 92 donuts for sale, including 8 jelly-filled donuts. What is the probability that a randomly selected donut will be a jelly-filled donut? Write your answer as a fraction or whole number.
Answer:
Probability [selected donuts a jelly-filled donut] = 2 / 23
Step-by-step explanation:
Given:
Total number of donuts = 92
Number of jelly-filled donuts = 8
Find:
Probability [selected donuts a jelly-filled donut]
Computation:
Probability [selected donuts a jelly-filled donut] = Number of jelly-filled donuts / Total number of donuts
Probability [selected donuts a jelly-filled donut] = 8 / 92
Probability [selected donuts a jelly-filled donut] = 2 / 23
What does the x represent
Answer:
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable and x in this equation would be 5 because 5+2=7.
Step-by-step explanation:
Answer:
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x+2=7, x is a variable and x in this equation is , 5+2=7, but we can work out its value if we try!
Step-by-step explanation:
S
What is the solution to this system of equations?
3x + y = 2
2 + 3y
-
--18
re
O (2,-6)
ware
O (3,-7)
(-6, 2)
aphing
O (-7,3)
Answer:
-7,3
Step-by-step explanation:
look at the pictire
Which of the following could NOT be considered a POLYNOMIAL?
a. 3a^3 - a^2 + 2a - 6
b. m^5 - m
c. 2a^2 - 3a + 2^a
d. 1/2^h^2 + h/2
Answer:
a please be correct I hope it is a
find the slope given the points (2,-7)and(-1,6)
Answer:
13/-3
Step-by-step explanation:
If a polynomial is divided by a binomial and the remainder is zero, what does that tell you about the relationship between the binomial and the polynomial?
Answer:
Step-by-step explanation:
Binomial is a factor of the polynomial.
Train A leaves the station traveling east at 50 mph while train B leaves the station 30 minutes later traveling west at 65 mph. Choose the equation below that represents the distance in miles between the two trains, D, as a function of T, the time in hours after train B has departed.
Answer:
Change 45 min to .75 hrs
Distance = speed * time
Train A's distance = 55(t+.75)
Train B's distance = 70t
The equation
D(t) = 70t + 55(t+.75)
Select all the correct measurement conversions.
A. 8 pints = 16 fluid ounces
B. 5 feet = 60 inches
C. 2 tons = 4,000 pounds
D. 5 meters = 5,000 centimeters
E. 2 days = 2,880 minutes
1. Which of the following is true about the expression shown below? *
Capitols Image
A. The expression is a degree three binomial.
B. The expression is a degree two trinomial.
C. The expression is not a polynomial.
D. The expression is a polynomial written in standard form.
On a bike trip, you traveled 21 miles on the first day, 19 miles on the second day, and n miles on the thirdday.
a. Write an expression for the number of miles traveled all three days.
b. Simplify the expression.
PLZ DONT WASTE MY POINTS
Answer:
21 + 19 + x
40 + x
Step-by-step explanation:
well you would just add up 21 + 19 + x. that would be 40 + x. That would be the number of miles
Find the volume of the cone below. Use 3.14 for A. Round your answer to the nearest tenth.
3
r = 1.5
Answer:
D) 7.1 units³
Step-by-step explanation:
V = (3.14)(1.5)²(3/3)
= (3.14)2.25 = 7.1
If tan A = (7/2), then which of the following is closest to the measure of
Answer:
The option which is the closest to the measure of ∠A is 74°
Step-by-step explanation:
The question is answered using the options provided by a similar question from an online source
When tan A = (7/2), we have;
The trigonometric ratio for the tangent of an angle is given as follows;
[tex]tan\angle A = \dfrac{Opposite \ leg \ length}{Adjacent \ Leg \ length} = \dfrac{sin \angle X}{cos\angle X}[/tex]
tan A = (7/2) = 3.5
sin(30°) = 1/2, cos(30°) = (√3/2)
sin(60°) = (√3/2), cos(60°) = (1/2)
sin(45°) = cos(45°) = (√2/2)
tan(30°) = (1/2)/(√3/2) = (√3)/3
tan(45°) = 1
tan(60°) = (√3/2)/(1/2) = √3
The tangent of an angle is increasing as we move from 0° to 90°
Therefore, given that tan A = 7/2 > tan 60° = √3, we have;
∠A > 60°
The option (the options obtained from an online source are; 15°, 39°, 58°, and 74°) which is the closest to the measure of ∠A is 74°.
Answer:
give the guy or girl above me brainliest
Step-by-step explanation:
What is the equivalent fraction for 2
4
Find the value of x!I’ll mark the BRAINIEST
Answer:
106
Step-by-step explanation:
Interior angles add up to 360 degrees.
360-74-74(angles across are the same)=212
212/2=106 degrees
Answer:
x = 106°
Step-by-step explanation:
adjacent angles in this parallelogram are supplementary (add to 180°)
The length of rectangle is represented by 8x - 3. The width of the rectangle is represented by 2x. The perimeter is 34 inches. Which equations represent the perimeter? Choose all of the correct answers.
Answer: 20x-6 = 34
Step-by-step explanation:
Given: The length of rectangle is represented by 8x - 3.
The width of the rectangle is represented by 2x.
The perimeter is 34 inches.
Perimeter of rectangle = 2 (length + width)
Perimeter of rectangle = 2 (8x-3+2x)
Perimeter of rectangle = 2 (10x-3)
Perimeter of rectangle = 20x-6
Thus , the required equation that represent the perimeter: 20x-6 = 34
Tickets for the CTA train cost $0.75 for students and $3.25 for
chaperones. If a school trip has a total of 50 people, how many students
and chaperones are on the trip? *
help i need this asap
HINT: Try graphing your equations or multiplying the cost equation by 4.
What is the area of this figure! Pls help!
Answer:
count all the boxes it covers(that is your area)
answer : 27
Step-by-step explanation:
Find the solution set of the inequality:
8x + 2 > 34
Answer:
x>4
Step-by-step explanation: Khan Academy
Find the tangent of
Step-by-step explanation:
tangent < I
= p / b
= HJ / HI
= 56 / 33
Hope it will help :)
Can someone answer this
Select the correct answer.
A square field has an area of 10 square miles. What is the approximate length, to the nearest thousandth, of one side of this field?
A.
2.5 miles
B.
3 miles
C.
3.162 miles
D.
3.612 miles
PLEASE ANSWER THIS ASAP!!!!!
this is really important, if ur not positive dont answer plz...
Answer:
what does this mean
Step-by-step explanation: