Answer:
C. If an object is dropped from a height of 120 feet, the function h(t) = –16t2 – 120 gives the height of the object after t seconds.
Step-by-step explanation:
.................................The last one is the only one that makes sense according to the standard position function. -16t^2 is the pull of gravity on an object in free fall, and the height is 120 feet above the ground. Hopefully that's what you need since there's no graph we can refer to
....................................................Answer:
The explanation that best provides the real-world scenario is:
If an object is dropped from a height of 120 feet, the function
gives the height of the object after t seconds.
Step-by-step explanation:
a)
If an object is dropped from a height of 120 feet, the function gives the height of the object after t seconds.
This option is incorrect.
Since when t=0 we have:
h(t)= -120
This is not possible as the object is above the ground and hence must have positive height initially.
b)
If an object is dropped from a height of -16 feet, the function gives the height of the object after t seconds.
This option is incorrect.
Since a object when is dropped from some height then it must be a positive height.
Also, when t=0 we have: h(t)= 120 feet.
This means that the object is dropped from a height of 120 feet.
c)
If an object is dropped from a height of 120 feet, the function gives the height of the object after t seconds.
In this when t=0 we have:
h(t)=120 that means the height of the object initially was 120 feet and then it decreases with the increase in time as the object will reach the ground with the time increase and hence height will decrease.
Hence, this option is correct.
........................................The equation that models the movement of the object is:
Where,
t: time
a: acceleration due to gravity
v0: initial speed
h0: initial height
Suppose that the object falls with zero initial velocity and from a height of 38 feet.
The equation that models the problem is:
Answer:
If an object is dropped from a height of 38 feet, the function h (t) = -16t2 + 38 gives the height of the object after seconds
.................Answer: If an object is dropped from a height of 38 feet, the function h (t) = -16t2 + 38 gives the height of the object after seconds
Step-by-step explanation:
The explanation that best provides the real-world scenario is:
⇒ If an object is dropped from a height of 120 feet, the function
h(t) = - 16t² - 120 gives the height of the object after t seconds.
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
a) If an object is dropped from a height of 120 feet, the function
h(t) = - 16t² + 120 gives the height of the object after t seconds.
Hence, This option is incorrect.
Since, when t=0 we have:
h (t) = -120
This is not possible as the object is above the ground and hence must have positive height initially.
b) If an object is dropped from a height of -16 feet, the function
h(t) = - 16t² + 120 gives the height of the object after t seconds.
This option is incorrect.
Since a object when is dropped from some height then it must be a positive height.
Also, when t = 0
we have: h (t) = 120 feet.
This means that the object is dropped from a height of 120 feet.
c) If an object is dropped from a height of 120 feet, the function
h(t) = - 16t² - 120 gives the height of the object after t seconds.
In this when t=0 we have:
h(t)=120
That means the height of the object initially was 120 feet and then it decreases with the increase in time as the object will reach the ground with the time increase and hence height will decrease.
Hence, this option is correct.
Learn more about the mathematical expression visit:
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please answer ASAP. is this undefined(A) or is it 1 (B)
Answer:
slope is undefined
Step-by-step explanation:
The slope of a vertical line parallel to the y- axis is undefined
Polygon B is a scaled copy of Polygon A using a scale factor of 5.
How many times larger is the area of Polygon B than the area Polygon A?
Answer:
5times largerof apolygon
the sum of three consecutive number is 63 find the number
The sum of three consecutive number is 63, hence the number is 20.
What is an equation?An equation is an expression that shows the relationship between two numbers and variables.
An independent variable is a variable that does not depend on any other variable for its value whereas a dependent variable is a variable that depend on any other variable for its value.
Let x represent the number. The sum of three consecutive number is 63, hence:
x + (x + 1) + (x + 2) = 63
x = 20
The sum of three consecutive number is 63, hence the number is 20.
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In Paige’s class, 13 of the 20 students were born in Texas. Based in the information,
if there are 800 students at the school, how many students could be expected to have
been born in Texas?
Answer:
520
Step-by-step explanation:
13 out of 20 is equal to 520 out of 800
it is 65% and 65% of 800 is 520
The sum of two numbers is 12. When one number is subtracted from three times the other, the result is 4.
Find the numbers.
Answer:
1 2/3, 10 1/3
Step-by-step explanation:
x + y = 12
(3x - 1) = 4
let x = 12-y
substitute:
3(12-y) - 1 = 4
36 - 3y - 1 = 4
35 - 3y = 4
-3y = -31
y = 31/3 or 10 1/3
x = 11 3/3 - 10 1/3 which is 1 2/3
2 box plots. The number line goes from 175 to 450. For resort A, the whiskers range from 175 to 375, and the box ranges from 250 to 300. A line divides the box at 375. For Resort B, the whiskers range from 200 to 400, and the box ranges from 300 to 375. A line divides the box at 325.
Compare the two box plots to determine where Kevin should plan to go for vacation. Which statement is true?
Resort A gets more snowfall than Resort B.
Resort A gets between 250 and 400 inches of snow each year.
Resort B gets more snowfall than Resort A.
Resort B gets between 250 and 350 inches of snow each year.
Answer:
The answer is C (Resort B gets more snowfall than Resort A)
Step-by-step explanation:
According to the diagram, Resort A gets 375 inches of Snowfall, and Resort B gets 400. 375 < 400
If P= (2, 7) and Q= (2, -3), which could be the coordinates of R if triangle PQR is isosceles?
Answer: c
Step-by-step explanation:
Please help!!! Will give brainliest!
Answer:
im pretty sure its a but i could be wrong ✋
which parent function go through the orgin? select all that apply
A reciprocal
B linear
C quadratic
D Cubic
E cube root
F absolute value
Create a fraction model in which the shaded part represents a fraction equivalent to 20 100 Divide the figure into the correct number of equal parts by using the More and Fewer buttons. Then shade by selecting the part or parts.
Answer:
100/20=5. this is the answer of ur questions
Bonjour, pouvez-vous m'aider s'il vous plaît.
Un grand père de 70ans a réuni ses 5 petits enfants.
Adélaïde est la plus jeune. Viennent ensuite les jumeaux Alain et Alex qui ont 4ans de plus. Coralie a deux ans de plus que les jumeaux et Dorothée a 7ans de plus qu'Adélaïde.
Le grand père remarque: "C'est amusant, à vous tous, vous avez le même âge que moi.".
Quel est l'âge d'Adélaïde ? (Utilisez une question).
Merci de votre compréhension.
Qu'est-ce que cela a à voir avec quoi que ce soit?
Given the cosine equation y = 2cos(4x) - 1, What is the midline?
Answer:
[tex]y = 2 \cos(4x) - 1 \\ when \: y = 0 \\ \cos(4x) = \frac{1}{2} \\ 4x = 60 \\ x = 15 \\ when \: x = 0 \\ y = 2 - 1 = 1 \\ intercepts = > (15, \: 0) \: and \: (0, \: 1) \\ midpoints : ( \frac{15 + 0}{2} , \: \frac{0 + 1}{2} ) \\ = (7.5, \: 0.5) \\ gradient = \frac{1 - 0}{0 - 15} \\ = - \frac{1}{15} \\ y = mx + c \\ at \: (7.5, \: 0.5) \\ 0.5 = - \frac{1}{15} \times 7.5 + c \\ 0.5 = - 0.5 + c \\ c = 1 \\ \therefore \: y = - \frac{1}{15} x + 1 \\ = > 15y = - x + 15[/tex]
what is a 10th term and the first 3 terms of :(
−
2
)
⋅
Step-by-step explanation:
your question is quite easy but the way you put it makes it complicated for me to understand. please can you rewrite it in a more easier way
Ken is thinking of a number. Nine more than the product of 4 & the number is 73. Find Ken's number.
Answer:
x = 16
Step-by-step explanation:
Let the unknown number be x.
Translating the word problem into an algebraic expression, we have;
4x + 9 = 73
4x = 73 - 9
4x = 64
x = 64/4
x = 16
Therefore, the unknown number is 16.
What is the probability of flipping a coin 12 times and getting heads 3 times?
Round your answer to the nearest tenth of a percent.
Answer:
1/4
Step-by-step explanation:
We put 3 /12 which is 1/4 simplified
Glad I could help!!1
According to a recipe for purple paint, the ratio of milliliters of blue paint to milliliters of red paint in the mixture should be 20:4. Selena has 140 ml of blue paint. She wants to mix red paint to it to get the same shade as suggested by the recipe.
For every 1 ml of red paint, the recipe suggests adding [Drop Down 1] of blue paint. So, for
140 ml of blue paint the amount of red paint needed is [Drop Down 2].
Answer:
30ml
Step-by-step explanation:
what is 10.25 divided by negative 0.5
Answer:
-20.5
hope this helps
have a good day :)
Step-by-step explanation:
Write the fraction as a percent. 6/25
Answer:
0.0417
Step-by-step explanation:
Can someone pls give me the answer to this?
Answer:
A
Step-by-step explanation:
It went down 5 so y-5 and it also went left 6 so x-6
(x-6,y-5)
I'm pretty sure the top right is before it was moved
Brainliest Appreciated! :)
Answer:
D
Step-by-step explanation:
lets take one point of each triangle
A(-5,-4) A´(1,1)
-5 to 1 is 6
-4 to 1 is 5
( x + 6, y - 5 )
To find an estimate for π I could...
Answer:
You could use 3.14 or 22/7
Step-by-step explanation:
It should be what you're asking, if not, tell me and I'll give you another answer.
:)
Answer:
use 22/7 or 355/133, but 355/133 is not very commonly used and is unwieldy.
Step-by-step explanation:
The figure below is a square inside a rectangle
Answer:
ummmm their isn't no picture showing
have a good day :)
Step-by-step explanation:
2
Multiply: 3 x 4.
2 3.
A) 4
1
B) 8
6
C 12
3
1
D) 16
6
Answer:
12
Step-by-step explanation:
3×4=12
three multiply by four is equal to 12.
Find the measure of angle x.
X
x =
78°
Answer:
78°
Step-by-step explanation:
Theorem of vertical angles says that the opposite angle formed by two intersecting lines are congruent
So x = 78°
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer:
x = 78
Step-by-step explanation:
The angle labeled x and the angle with a measure of 78° are vertical angles
Vertical angles are congruent ( equal to each other )
So if "x"'s vertical angle has a measure of 78 degrees than x also has a measure of 78 degrees.
4x-36<-12
i need help on this
Answer:
x<6
Step-by-step explanation:
4x-36<-12
Add 36 to each side
4x-36+36<-12+36
4x < 24
Divide each side by 4
4x/4 < 24/4
x<6
Answer:
x<6
Step-by-step explanation:
Reverse order of operations SADMEP
4x<24 (add 36 to both sides)
x<6 (divide both sides by 4)
V = 4p2
Find V when p = 3
Given = V= 4p²
and P= 3
V= 4×3²
V= 36.
yh
so
there is another answer, it is above me
A train travels a distance of 120 km at a constant speed of V kmh 1. If the speed
is reduced by 10kmh), then the time taken to the journey is increased by one
hour. Find the constant speed V of train.
Help me please
Answer:
V = 40 km/h
Step-by-step explanation:
Total distance = 120 km
Constant speed of train = V km/h
⇒ [tex]Time \: taken \: by \: train = \frac{Distance}{Speed} = \frac{120}{V} \: hr[/tex]
Its given that if speed is reduced by 10 km/h , the time taken by train increases by 1 hour. BUT THE DISTANCE REMAINS SAME. So,
[tex]Speed \times Time = Distance[/tex]
[tex]=> (V - 10)(\frac{120}{V} + 1) = 120[/tex]
[tex]=> 120 + V - \frac{1200}{V} - 10 = 120[/tex]
[tex]=> V - \frac{1200}{V} - 10 = 0[/tex]
[tex]=> \frac{V^2 - 1200 - 10V}{V} = 0[/tex]
[tex]=> V^2 - 10V - 1200 = 0[/tex]
Factorise the quadratic equation.
[tex]=> V^2 - 40V + 30V - 1200[/tex]
[tex]=> V(V - 40) + 30(V - 40)[/tex]
[tex]=> (V - 40)(V + 30)[/tex]
[tex]=> V = 40 \: (or) \: -30[/tex]
Speed can't be negative. So , V = 40 km/h
What is the measure of the angle
Answer:
28.566
Step-by-step explanation:
you use the pythagorean theorem which is a^2 + b^2 = c^2 and plug in those numbers into the equation solving for a. hope this helped!
What value of x solves the equation 56/x = 8 (Trigonometry)
(In image)
Answer:
b. 7
[tex] \frac{56}{x} = 8 \\ 8x = 56 \\ x = 7[/tex]
Help me find answer ASAP please
Answer:
C
Step-by-step explanation:
thanks to the given informations we can say that the right triangle is half of an equilater one.
the height of the triangle can be find by multiplying the smallest leg with √3
so
x√3 = 8
x = 8/√3
that can be expressed as 8√3/3
8√3
3
Step-by-step explanation:
This triangle is 30-60-60 and to get side 8 is equal to x√3
I need help with this
Answer:
its a personality test im not alowwed to help
Step-by-step explanation: