Answer:
The ball will take approximately 2.165 seconds.
Step-by-step explanation:
The height of the ball is represented by the function [tex]h(t) = -16\cdot t^{2}+75[/tex], the time taken by the ball to hit the ground is a value of [tex]t[/tex] such that [tex]h(t) = 0[/tex], we proceed to solve the following equation for [tex]t[/tex]:
[tex]-16\cdot t^{2}+75 = 0[/tex] (1)
[tex]16\cdot t^{2} = 75[/tex]
[tex]t = \sqrt{\frac{75}{16} }[/tex]
[tex]t \approx 2.165\,s[/tex]
The ball will take approximately 2.165 seconds.
6. Mrs. Sam buys pencils for $15 per one hundred packs.
a. If she sells them to her students for 10 cents each, what is her profit/loss?
b. If she sells them to her students for 25 cents each, what is her profit/loss?
c. What price should she sell them at to not make or lose any money?
Answer:
a.) her loss is 5 dollars
b.) her profit is 10 dollars
c.) she should sell them for $0.15
Which statements are true about the x-intercepts of quadratic functions?
All quadratic functions have exactly one x-intercept.
An x-intercept is located at the point on the function where the value of x is 0.
A quadratic function can have up to two x-intercepts.
An x-intercept of a quadratic function is also called a zero of the function.
If x = 0 is an x-intercept of a quadratic function, then (x + a) is a factor of the function.
Answer:
Step-by-step explanation:
The following statements are true:
1. A quadratic function can have up to two x-intercepts.
2. An x-intercept of a quadratic function is also called a zero of the function
Please help me with this.
The half-life of a radioactive substance is 15 years. Determine algebraically, to the nearest year, how long it will take for 1/10 of this substance to remain.
Confused!! The picture below shows the question.
Answer:
25
Step-by-step explanation:
Hi! Please help on this question (you have to use the Pythagorean theorem method) and explain the steps *giving brainliest*
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!
Answer: Strange? Formulas of spheres dont have height. So with height is 1607,68 and without the height its 268.08
Step-by-step explanation:
301,71 cm ^3
hope this helps have a good day or night
Included picture
Question is not hard so please answer correctly
A ship is 130 m away from the centre of a barrier that measures /
180 m from end to end. What is the minimum angle that the
boat must be turned to avoid hitting the barrier?
Answer:
Step-by-step explanation:
50 meters away
Consider function g.
g(x) = 5/x - 1 + 2
What is the average rate of change of function g over the interval [-4, 3]?
A. 1/2
B. -1/2
C. -7/2
D. 2
Answer:
Step-by-step explanation: The answer is 1/2. This is on the Odyssey online Algebra 2 mastery test.
The average rate of change of function g over the interval [-4, 3] will be;
⇒ 1/2
What is Division method?Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.
Given that;
The function g is,
⇒ g (x) = 5 / (x - 1) + 2
And, The interval is,
⇒ [ - 4, 3 ]
Now,
We know that;
The average rate of change of function at interval [a, b] is,
⇒ f (b) - f (a) / (b - a)
So, The average rate of change of function g over the interval [-4, 3] is,
⇒ g (3) - g (- 4) / (3 - (- 4))
Here, The function g is,
⇒ g (x) = 5 / (x - 1) + 2
Put x = 3;
⇒ g (3) = 5 / (3 - 1) + 2
= 5/2 + 2
= 4.5
Put x = - 4;
⇒ g (-4) = 5 / (- 4 - 1) + 2
= 5 / - 5 + 2
= - 1 + 2
= 1
So, WE get;
The average rate of change = (4.5 - 1) / 7
= 3.5 / 7
= 1/2
Learn more about the divide visit:
https://brainly.com/question/28119824
#SPJ2
ASAP PLEASE HELP!!!! WRITE AN EXPRESSION
Answer:
10c + 5b + 420 + 4c
Step-by-step explanation: 10 dollars for each child, 5 dollars per a pair of rubber boots, party room is 420 and 4 is per each child's pizza
Alfonso scored 18 points during his last basketball game,which was 40% of the points the entire team.
the entire team score________points.
Answer:
45 points
Step-by-step explanation:
40/100=18/x equation
100×18=1800 multiply
1800÷40=45 divide
x=45 points
Answer:
48 points
Step-by-step explanation:
I took the test
Leo's bank balances at the end of months 1, 2, and 3 are $1,500.00, $1,530.00, and $1,560.60, respectively. The balances form a geometric sequence. What will Leo's balance be after 9 months?
whats the solutions to these using substitution method pls show ur work
I don’t know if this is correct !!!!!!!!!! Please answer correctly !!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!
Answer:
It is correct!!
Step-by-step explanation:
help me please I need helpp
Answer:
172.8 = 32 x 5.40
Step-by-step explanation:
A and b are positive integers and a-b=2. Evaluate the following:
27^1/3b/9^1/2a
thank you very much
Answer:
Answer: 1/9
Step-by-step explanation:
(27^1/3 = 3
9^1/2 = 3
3^b
====
3^a
3^(b - a)
3^-2 = 1/9
1/9
A toy company uses the box shown below to package wooden cubes. Each wooden cube has a volume of 1 8cubic foot. In total, how many wooden cubes will fit in the box.
Answer:
240 cubes
Step-by-step explanation:
A toy company uses the Box shown below to package wooden cubes each wooden Cube has a volume of 1/8 cubic feet in total how many wooden cubes will fit in the Box
Volume of the box = length × width × height
= 5 ft × 3 ft × 2 ft
= 30 ft³
Volume of wooden cube = 1/8 ft³
how many wooden cubes will fit in the box.
Number of wooden cubes that will fit in the box = volume of the box ÷ volume of the wooden cube
= 30 ft³ ÷ 1/8 ft³
= 30 × 8/1
= 240 cubes
Number of wooden cubes that will fit in the box = 240 cubes
Find the area of a square if its side length is 3/7 units
NO LINKS PLEASE
Answer:
A=a2
Step-by-step explanation:
What is the volume of the composite figure?
Answer:
It's 372 in³
Step-by-step explanation:
A rectangular prism's volume is l x w x h right? So there are 2 rectangular prisms. So just add the volume of 2 rectangular prisms (12 x 4 x 4 + 12 x 3 x 5 = 372 in³
Find the volume of the cylinder.
Answer:
[tex]1205.8 \: {in}^{3} [/tex]
Step-by-step explanation:
For given cylinder:
Radius (r) = 4 in
Height (h) = 24 in
[tex]V_{cylinder} =\pi {r}^{2} h \\ \\ = 3.14(4)^{2} (24) \\ \\ = 1,205.76 \\ \\ \approx 1205.8 \: {in}^{3} [/tex]
Please answer this quick
I'm sorry but i can't really see the picture
Answer:
1/4
Step-by-step explanation:
what is the input of arccos
Answer:
It returns the angle whose cosine is a given number.
Step-by-step explanation:
For every trigonometry function, there is an inverse function that works in reverse. These inverse functions have the same name but with 'arc' in front. (On some calculators the arccos button may be labeled arccos, or sometimes cos-1.) So the inverse of cos is arccos etc. When we see "arccos x", we understand it as "the angle whose cosine is x"
cos30 = 0.866 Means: The cosine of 30 degrees is 0.866
arccos 0.866 = 30 Means: The angle whose cosine is 0.866 is 30 degrees.
Use arccos when you know the cosine of an angle and want to know the actual angle.
What is the area of the triangle?
5
3
units?
Can anyone help me please
I’ll mark you as a brainliest.
NO LINKS
A rectangle swimming pool is measured up to 15 meters long and 7 1 fourth meters wide what is the area of this swiming pool
Answer:
108.75 m^2
Step-by-step explanation:
Area of a rectangle = length x breadth
15 x 7 1/4
15 x 29 / 4 = 108.75 m^2 or 108 3/4 m^2
Anton leaves a cup of hot chocolate on the counter in his kitchen. Which graph is the best representation of the change in temperature of his hot chocolate over time?
Answer:
Step-by-step explanation:
May I please see the graph?
Please look at the picture I have been stuck on this question and I would really appreciate it if you can help me thank you
Answer:
52 feet
Step-by-step explanation:
distance is 6 from the question
6 = 5/6 √h
6/5 (6) = √h
36/5 = √h
7.2 = √h
7.2x7.2 = h
h = 51.84
this is Apx huh?
Can you guys help me find the missing parts where the letters are
Answer:
I’m going in the order form up to down
1) Total cost is $15.60 (you multiply the unit rate by the quantity to find the total cost)
2) Unit rate is $13.20 (You divide the total by the quantity to find the unit rate)
3) Quantity is 6 (You divide the total by the unit rate to find the amount of things or quantity)
4) 12 percent tax rate (We can make an eqaution to find out how much you multiply thr total to find the tax rate by doing 82.5x=9.9. THe result would be 0.12 or 12 percent)
Use the greatest common factor and the distributive property to write equivalent expressions in factored form.
13ab + 15ab =
Answer:
ab(28) or 28ab
Step-by-step explanation:
13ab + 15ab = 28ab
Answer:
ab(28) or 28ab
Step-by-step explanation: