Answer:
s = vt + 16t^2
s -16t^2 = vt
s/t -16t = v
Answer:
v = s/t -16t
Step-by-step explanation:
A pilot of a helicopter plans to release a bucket of water on a forest fire. The height y in feet of water t seconds after its release is modeled by y = − 16 t 2 − 2 t + 400 . How long will it take for the water to reach the ground? Round to one number after the decimal point.
Answer:
4.93 seconds
Step-by-step explanation:
The height y in feet of water t seconds after its release is given by the equation as follows :
[tex]y=-16t^2-2t+400[/tex]
We need to find the taken taken for the water to reach the ground. When it reach the ground, y will be equal to 0. So,
[tex]-16t^2-2t+400=0[/tex]
Above is a quadratic equation whose solutions can be calculated as follows :
[tex]t=\dfrac{-(-2)\pm \sqrt{(-2)^2-4\times (-16)\times 400} }{2\times (-16)}\\\\t=\dfrac{-(-2)+ \sqrt{(-2)^2-4\times (-16)\times 400} }{2\times (-16)}, \dfrac{-(-2)- \sqrt{(-2)^2-4\times (-16)\times 400} }{2\times (-16)}\\\\t=-5.062\ s\ \text{and}\ 4.93\ s[/tex]
Neglecting negative value.
Hence, it will take 4.93 seconds for the water to reach the ground
convert 86 meters to inches. ?
I'm so stuck rn because she says show how you got the answer never In a million years i thought i would never be doing medical math
Answer:
86 meters equals 3385.83 inches
825 centimeters equals 324.803 inches
Step-by-step explanation:
The formula is divide the length value by 2.54
Hope this helps!
If tan(x)=3/5 and sin(x)>0, what is sin(2x)?
With STEPS PLEASE AND NO TROLLING.
i edited the answer. hope it helps. if it isn't ryt tell me plz
Answer:
sin2x = [tex]\frac{30}{34}[/tex]
Step-by-step explanation:
Given
tanx = [tex]\frac{3}{5}[/tex] = [tex]\frac{opposite}{adjacent}[/tex]
This is a right triangle with legs 3 and 5
Let the hypotenuse be h , then using Pythagoras' identity
h² = 3² + 5² = 9 + 25 = 34 ( take the square root of both sides )
h = [tex]\sqrt{34}[/tex]
Thus
sinx = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{3}{\sqrt{34} }[/tex]
cosx = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{5}{\sqrt{34} }[/tex]
Hence
sin2x = 2sinxcosx = 2 × [tex]\frac{3}{\sqrt{34} }[/tex] × [tex]\frac{5}{\sqrt{34} }[/tex] = [tex]\frac{2(3)(5)}{\sqrt{34}(\sqrt{34}) }[/tex] = [tex]\frac{30}{34}[/tex]
that is $21.24÷6 and that is 28.63÷7 and 1.505÷35.thx
Answer:
$21.24÷6=$3.54
28.63÷7=4.09
1.505÷35=0.043
Here you go
Step-by-step explanation:
What is the volume of a cone with a hieght of 27 cm and a radius of 13 cm ? Round your answer to the nearest tenth.
Answer:
4778.36
Step-by-step explanation:
Help pleaseee ASAP ASAP
Answer:
SAS
Step-by-step explanation:
two sides are same, and the angles between the sides are same (vertical).
I promise this the last one but how do you do these type of problems?
Answer:
0.96 + 0.43v
Step-by-step explanation:
You simplify, v and -0.57v are like terms, therefore you can add them together
v - 0.57v = 0.43 v
Answer:
0.96 + 0.43v
Step-by-step explanation:
What you are doing is combining like terms. Let's say v is candy I have v - .57v that means I have one candy and I ate .57 of it already so we subtract to get .43v and the .96 is brussel sprouts. We do NOT want to mix the candy and the brussel sprouts because they are different things.
If you need me to explain more let me know, but hopefully this helps and have a great day!
Jack's family left home at 9:00 AM and drove to the amusement park at 60 mph. They spent 7 hours at the park and then drove back home. On the way home, traffic was bad and they drove 20 mph slower than in the morning. They got home at 8:00 PM. How far is the amusement park from Jack's home?
Answer:
96 miles
Step-by-step explanation:
The distance from the amusement to jack's home is x (mile, x>0)
jack's family went to the amusement park at: 9 + x/60
On the way home, traffic was bad and they drove 20 mph slower than in the morning⇒ they drove: 60 - 20 = 40 mph
they left the amusement park at: 20 - x/40
have the following equation:
(20 - x/40) - (9+ x/60) = 7
⇔ 4 = x/40 + x/60
⇔ x = 96
so the distance from the amusement park to jack's home is 96 miles
Celea pays $50 for a 15-month subscription of a newspaper. How much does she pay per month?
Answer:
$4
For this question, we must divide 50 by 15 months.
50 ÷ 15 = 4.
So, the answer will be 4.
Celea pays $4 dollars per month.
Hope this helps!
2|4x-5|-2=-4 how do I solve this?
Step-by-step explanation:
in my opinion
2(4x-5)-2=-4
=2×4x-2×5-2=-4
8x-10-2=-4
8x=-4+10+2
8x=-4+12
8x=-16(divide both sides by 8)
×=2
Need help on this ASAP!!
This graph shows the solution to which inequality?
Answer:
y > 1/3 x - 2
Step-by-step explanation:
...
Sally is three times as old as an 8 years from now Sally will be twice as old as John how old is John
Answer:
John is 12 years old.
Step-by-step explanation:
She is three times as old as an 8 years old.
8*3 = 24
Twice as old as John. John is half her age.
24/2 = 12
which answer is correct?
Which expression is undefined?
3.-8= (2.8) - 8
is it true or false
Answer: false
Step-by-step explanation:
2x/3+x/2=5/6
Please solve for x as a fraction!
Answer:
the value of x is 5/7 which is in fraction
Answer: x = 5/7
Step-by-step explanation: 2x/3 + x/2 =5/6
To use a least common denominator, divide LCD by the original denominator and multiply the original numerator by the result.
for 2x/3 6÷3=2 2×2x=4x so that becomes 4x/6
for x/2 6÷2=3 3× (invisible) 1 = 3x, so that becomes 3x/6
combine 4x/6 + 3x/6 = 7x/6
Back to the original equation, substituting the calculated term:
7x/6 = 5/6 Multiply both sides by 6 to simplify (6)(7x/6) = (6)(5/6) 6's "cancel"
7x = 5 . Divide both sides by 7 to solve for x 7x/7 = 5/7
x = 5/7
Will mark brainliest‼️
every year 20 fewer students eat in the school cafeteria. assuming this trend continues, write a multiplication expression to show the change in the number of students over the next 4 years. Express this change as an integer.
Answer:
ㅎㄹㅊㅊㅎ초ㅗ초초쳧쳐ㅗ채ㅓㅓ호퐃러ㅗㅏㅗㅎ초하ㅗㅓㅠㅗㅍㅊ호허ㅠㅓㅠㅓㅏㅑㅗㅗㅍㅎㅊㅎ처ㅏㅜㅣㅓㅓㅎ
if you’re good at geometry pls text me end help me with my homework 832-343-4866
Answer: I just did
Step-by-step explanation:
6(14+x)=108, umm please help
Answer:
X = 4
I hope this helps
if you could, feel free to mark me Brainliest it would be much appreciated :D
Will mark brainlist!! Nick’s Burgers is a fast-food restaurant that sells 140 burgers a day. If sales increase by 60%, how many burgers does the restaurant sell in a day?
A.56
B.148
C.200
D.224
Answer:
D- 224
Step-by-step explanation:
10% of 140 is 14
So then you multiply 14 by 6 to get 60%
then you add that to 140 to equal 224.
The correct statement is that if the sales of burgers at Nick's Burgers increases by 60%, the total sales per day will be increased to 224 burgers per day from 140 burgers per day.
What is Increased Sales?An increase in sales refers to as the positive shift in the sales of goods as compared to previous sessions during a given period of time, given that other factors vary.
The increase in sales will happen as a result of the strategies that may have been adopted by Nick or increase in the demand due to external factors.
The calculation of increased no. of burgers sold per day can be calculated by using the formula and putting the values given in the example as below,
increased sales = 224
So, the new sales of burgers per day is calculated as 224 per day.
Hence, an increase in sales of burgers at Nick's by 60% will result in sales of 224 burgers per day from 140 burgers per day.
Learn more about increase in sales here:
brainly.com/question/26037072
#SPJ2
Geometry On the number line point B is between points A and C. The distance between points a and b is 1/3 of AC. Where is point B located?
Answer:
hfbhlbghulbfrhbuf
Step-by-step explanation:
hbbfhhbfhfhlflb frf
At the market five lightbulbs cost nine dollars how much do seven lightbulbs cost
Answer:
$12.60
Step-by-step explanation:
Answer:
12.60
Step-by-step explanation:
9 dollars divided by 5 lightbulbs is 1.8
so 1.80 dollars × 7 lightbulbs = 12.60
9÷5=1.8
1.8×12.60
A store sells a 33-pound bag of oranges for \$ 3.60$3.60 and a 55-pound bag of oranges for \$ 5.25$5.25. What is the difference between the price per pound for the 33-pound bag of oranges and the price per pound for the 55-pound bag of oranges? The difference is \$$ per pound.
Answer:
$0.014
Step-by-step explanation:
Given that :
Sales price of 33-pound bag of oranges = $3.60
Sales price of 55-pound bag of oranges = $5.25
Price per pound of 33-pound bag:
Sales price / number of pounds
= $3.60 / 33
= $0.109 per pound
Price per pound of 55-pound bag:
Sales price / number of pounds
= $5.25 / 55
= $0.095 per pound
Difference in price per pound of 33-pound bag and 55-pound bag of oranges :
$0.109 - $0.095
= $0.014
4/5(2x+5)−4=1
4/5 is a fraction
Answer:
x = [tex]\frac{5}{8}[/tex]
Answer:
x = 5/8
Step-by-step explanation:
Maria makes $6.00 an hour plus 5% commission for telephone sales. Yesterday, Maria worked 8 hours and had sales of $600.00. How much did Maria make yesterday? Explain your answer.
Answer:
88 dollars
Step-by-step explanation:
8 x 6 = 48 dollars (hours)
600 x .05 = 40 (commissions)
48 + 40 = 88 total dollar
Answer:
End of Unit Project: Mathdonalds, Chez Mathématiques, and Was 7×3, Is 10 + 11, Always Will Be 30 – 9.
Step-by-step explanation:
Rich earns $35 per week mowing lawns in his neighborhood. Which expression can be used to show how much money he earns in 8 weeks?
(8+30) + (8+5)
(8x30) + (8x5)
PLEASE HELPPPPP
Answer:
(8x30) + (8x5)Step-by-step explanation:
Earning per week
$35Earning in 8 weeks
35 * 8 = (30 + 5)*8 = 30*8 + 5*8Second option is correct
Josie's age is four years greater than double
Mario's age. If Mario's age is n years, which of
these expressions represents Josie's age?
A. 4n
B. 4n +2
C. 42n + 4
D. 2(n +4)
Answer:
None of these.
Step-by-step explanation:
Mario's age= n
Therefore,
Josie's age= 2n+4
If one penny, two dimes, and one quarter are added to the bag, what is the new probability that Marissa will draw a nickel? Write your answer as a fraction, as a decimal, and as a percent.
Answer:
As a fraction it's ¼, as a decimal it's 0.25 and as a percentage it's 25%
Please HELP 10 mins left
Answer:
x = 8
Step-by-step explanation:
