Answer:
the perimeter of a square with sides 2.5 mm long is b.10 mm.
A weather balloon is released and rises vertically such that its distance s (t) above the ground during the first 10 sec of flight is given by s(t)-6+2t+t2, where s(t) is in feet and t is in (a) Find the velocity at t- 4 seconds. (Worth 5 points) sec/Pt Answer (b) Find the instant the balloon is 50 feet above the ground.
Step-by-step explanation:
A weather balloon is released and rises vertically such that its distance s (t) above the ground during the first 10 sec of flight is given by :
[tex]s(t)=6+2t+t^2[/tex] ...(1)
(a) We need to find velocity at t = 4 seconds
Differentiate equation (1) wrt t.
[tex]v=\dfrac{ds}{dt}\\\\v=\dfrac{d(6+2t+t^2)}{dt}\\\\v=2+2t[/tex]
At t = 4 seconds,
[tex]v=2+2(4)\\\\=10\ ft/s[/tex]
At t = 4 seconds, the velocity is 10 ft/s.
(b) When the balloon is 50 feet above the ground,
[tex]6+2t+t^2=50[/tex]
We need to find t.
[tex]6+2t+t^2=50\\\\t^2+2t-50+6=0\\\\t^2+2t-44=0[/tex]
It is a quadratic equation,
t = 5.708 and t = -7.708
Neglecting negative time, the instant time is 5.708 seconds.
good monke good monke dog
Answer:
very inspirational thanks
Step-by-step explanation:
Answer:
monke
Step-by-step explanation:
Q. Penelope is told to clean all the windows at her house. After cleaning 9 windows her job is
30% complete. How many windows does she clean in all?
Answer:
30
Step-by-step explanation:
So we know that 9 windows is 30% so then we multiply 30 to get to the closest to 100 which is x3 so its 90%. Then you divide 30 by 9 which is 3.3 and round it to 3.
Summer Earnings Jobs Hours Worked Earnings 6 Mowing Yards Delivering Newspapers Washing Cars $42 4 ney, in dollars and cents, did Kamron earn per hour for mowing yard +/-
Answer:210
Step-by-step explanation:2+1+0=210 ✨
what does 1/2 plus 3/4
Answer:
1/2 plus 3/4 = 1 1/4 or 1.25 same thing
Step-by-step explanation:
1/2 = 2/4
2/4 +3/4 = 5/4 or 1.25
Convert 5700 milligrams into pounds. Round your answer to the nearest hundredth.
The value of the 5,700 milligrams in pounds is approximately 0.01 lb
What is a unit of measurement?A unit of measurement is a specified magnitude of a quantity that is accepted and adopted by convention or backed by law, and used as a measurement standard.
In other to successfully convert a quantity in one unit to another unit, both units (initial and destination unit) should refer to the same characteristics of the object being measured.
Once both units are confirmed to refer to the same quantity, conversion factors are used to multiply the quantity in the first unit in order to express it in the other unit.
The given parameters are;
The quantity to be converted to pounds = 5,700 milligrams
The factor of conversion is 1,000 mg ≈ [tex]2.205 \times 10^{-6}[/tex] lb
Therefore;
[tex]5,700\: mg = 5,700 \times 2.205 \times 10^(-3) ≈ 0.0126[/tex]
Therefore, to the nearest hundredth, we have;
5,700 mg ≈ 0.01 lb
Learn more about unit conversion in mathematics here:
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Sara went to breakfast with her family. What is the total cost is the sales tax is 6%?
Answer:
divide/multiply
Step-by-step explanation:
search it up its simple
write the decimal 2.10 as a percent
Answer:
210%
Step-by-step explanation:
dat was too easy
Answer:
210% or 21% or 2.10%
its all about what 2.10 is out of (example: /1=210% /10= 21% /100=2.1%
edit: if your wondering what the "/" means it means " out of" (example: 1 out of 100 is 1%)
The ratio of men to women working for a company is 5 to 7 if there are 133 women working for the company what is the total number of employees
Help me with this plz!?! I will mark brainliest!!!
Answer:
can u take another picture the glare on it is really bad srry
Step-by-step explanation:
I need help please lol
Answer:
b d f i think sorry if this doesnt help but have a great day :)
Step-by-step explanation:
Dreya is saving money to purchase a $900 computer, and she saves $10 the first week. Each week after that, she saves $3 more than the previous week, except in the last week, when she reaches $900. To have a final sum of exactly $900, how much money does Dreya need to save in her final week of saving?
$13
$60
$70
$73
Answer:
$ 60
Step-by-step explanation:
hope it helps!
.....
Answer:
It is B
Step-by-step explanation:
Got it right on unit review
What is the equation of the line that is parallel to y=-2/3x+4 and that passes through (–2,–2)?
Answers
y=-2/3x-4/3
y=-2/3x-10/3
y=-2/3x-2/3
y=-2/3x-17/4
Answer:
when tow line are parallel (a) is same
Find the are of the semi circle.Either enter an exact answer in terms of pie or use 3.14 and enter your answer as a decimal.The raduis is 4
Which equations are perpendicular to the line that passes through (2,1) and (3,4)
Group of answer choices
y=3x+5
y=3x+9
y=(-1/3)x+6
y=(-1/3)x+10
y=(1/3)x+4
y=(1/3)x+6
9514 1404 393
Answer:
y=(-1/3)x+6y=(-1/3)x+10Step-by-step explanation:
The slope of the given line can be found from the slope formula:
m = (y2 -y1)/(x2 -x1)
m = (4 -1)/(3 -2) = 3/1 = 3
The slope of the perpendicular line is the opposite reciprocal of this:
perpendicular slope = -1/m = -1/3
__
Choices (c) and (d) have x-coefficients that are -1/3. Those are the perpendicular lines.
y=(-1/3)x+6y=(-1/3)x+10What is the LCM of eight and nine
Answer: LCM: 72
Step-by-step explanation:
8: 8, 16, 24, 32, 40, 48, 56, 64, 72
9: 9, 18, 27, 36, 45, 54, 63, 72
Answer:
the anser is 8 and 9 is 72 so 72
What’s 2/2 x 5/6 plz help me
Answer:
5/6
Step-by-step explanation:
2/2 = 11 × 5/6 = 5/6I hope this helps!
Question
Mark's grade went from 65% to 90%. What was his percent increase?
25%
28%
38%
90%
IF you do this for points YOU WILLLL NOT BE BRAINLEST AND YOU HAVE 1 HOUR IF IT IS LESS THAN AN HOUR NO ONE WILLL BE BRAINLEST !!!!!!!!!!!
Which number is missing on the following number line?
Answer:
21
Step-by-step explanation:
It is going by multiples of 7, so the answer is 21.
Find m Question below
Answer:
104 deg
Step-by-step explanation:
A central angle has the same measure as the arc it intersects.
m<JKL = m(arc)JJ = 104 deg
Plz help with question
Answer:
I believe it's B
Step-by-step explanation:
Isosceles triangles have congruent base angles, so base angle A and B should both be the same number. (25)
Added up, 25+25+130 is 180 degrees.
Please answer: A A piece of wood that is 7.07 centimeters long. Then she sawed 0.7 centimeters off the end. How long is the piece of wood now?
Answer:
6.37 cm
Step-by-step explanation:
Which math expression means "33 more than an unknown number"?
O A. 33. x
O B. X-33
O C. X+33
O D. X=33
Which statement regarding triangle EFG are true? Select three options
Answer:
It is the first three options. A,B,C or 1,2,3
Step-by-step explanation:
Find the m
D
55
35
В
At 5:00 p.m., Antonio turned on the oven. While the oven preheated, the temperature in the oven increased from 72°F to 400°F over a 10-minute period. The oven remained at 400°F for 45 minutes until Antonio turned it off. It took 60 minutes for the temperature in the oven to cool, returning to 72°F at 6:55 p.m. Which statement best explains whether or not the temperature in the oven is a function of the time?
Answer: It is a function because at any given time the oven was exactly one temperature.
Step-by-step explanation:
It is given that:
At 5:00 p.m., Antonio turned on the oven.
The oven remained at 400°F for 45 minutes until Antonio turned it off.
It took 60 minutes for the temperature in the oven to cool, returning to 72°F at 6:55 p.m.
What’s the answer to this radical functions equation ASAP
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Answer:
y = ∛(x -4) -1
Step-by-step explanation:
The transformation ...
g(x) = f(x -h) +k
translates the graph of f(x) h units to the right and k units up. Here, the cube root function is translated 4 units right and 1 unit down, so h=4 and k=-1. Putting those into your equation gives ...
y = ∛(x -4) -1
For the line that passes through Y(3,0), parallel to ↔DJ with D(-3,1) and J(3,3) I need to find the slope and to write a point slope form
Answer:
Step-by-step explanation:
2/5
do the run over rise
Write a polynomial expression that represents the total area of a square with a side length of (3x - 4).
Solve
20 + 6k - 14+k
Answer:
7k+6 is your answer to the question