Answer:
Step-by-step explanation:
Given tq equation of the height reached by the rocket as y=-16x^2+235x+133
The velocity of the object at its maximum height is zero
v = dy/dx = 0(at max height)
v =-32x +235
0 =-32x+235
x = 235/32
x = 7.34
Hence the rocket will reach its maximum height after 7.34seconds
Divide: 5 divided by 5/6
Select all of the expressions that are equal to 0.48 times 0.3
Answer A B C
Step-by-step explanation:
an oil company fills 1/12 of a tank in 1/3 hour. At this rate, which expression can be used to determine how long it will take for the tank to fill completely?
A) 1/12 • 3 hours
B) 1/3 • 12 hours
C) 1/3 • 1/12 hour
D) 3 • 12 hours
Answer:
It's C
Step-by-step explanation:
Correct me if i'm wrong.
But it seems to make sense with my calculations....
someone please please please help me!! i need to get my math grade up!!!!!
Answer:
I think its C
Step-by-step explanation:
Which symptom is the main indication that a person is having a heart attack?
shortness of breath
sudden pressure or pain in the chest
sore arms
vomiting
Answer:
Sudden pressure or pain in the chest
Step-by-step explanation:
The main symptom of the indication that a person is having a heart attack is that the person feels discomfort or heaviness in the center of the chest. Some other symptoms can be unusual fatigue, shortness of breath, nausea, cold sweats, or indigestion.
Hence, the correct option is (b) "sudden pressure or pain in the chest".
Answer:
b. sudden preassure or pain on chest
Step-by-step explanation:
What is the solution of the system? A. (2, −2) B. (−2, −2) C. (0, 2) D. (0, −2)
Answer:
well the system would be quadrants but the solution to me is unknown
Step-by-step explanation:
sorry
Answer:
(-2, -2)
Step-by-step explanation:
The two lines intersect at the point (-2, -2) on the graph, so that is the solution to the system of equations.
the watch bee would like to buy costs $10 less then 2 times the amount she has saved the watch costs $50. how much money does bee have saved?
Answer:
20$
Step-by-step explanation:
50 - (2x - 10) = x
50 + 10 = x + 2x
60 = 3x
60/3 = x
20 = x
Please help this is urgent!! Will mark brainliest! What’s the volume of the shown image
Answer:
480 ft^3
Step-by-step explanation:
The formula is lwh/3 so plug in length, width, and height.
What is the simple Intrest to 1,250 at 4.5% for 2 years
Answer:
1,362.50 Dollars
Step-by-step explanation:
First, converting R percent to r a decimal
r = R/100 = 4.5%/100 = 0.045 per year.
Solving our equation:
A = 1250(1 + (0.045 × 2)) = 1362.5
A = $1,362.50
Then You Get 1362.50 Dollars
whats the first four composite numbers
if John bought 2.5 kgs of rice for $7.50, then what is the unit price of rice?
Answer:
$3 per kg of rice
Step-by-step explanation:
To find the unit price of the rice, you have to divide the price of 2.5 kgs by 2.5 to get to the base unit of 1 kg.
7.50/2.5=3
So, it is $3 for every kg of rice.
Complete the missing value in the solution to the equation
for what value of a does the equation 3(2x-a)=2(3x+12) have infinitely many solutions to x
Answer: a = -8
3(2x - a) = 2(3x + 12)
⇔ 6x - 3a = 6x + 24
⇔ - 3a = 24
⇔ a = -8
Step-by-step explanation:
Answer:
X=24
Step-by-step explanation:
3(2x-a)=2(3x+12)
6x-3a=6x+24
-6x both sides.
-3a=x+24
Get rid of the -3a.
x+24
divide by x both sides.
x=24
Mom has ⅘ quart of strawberries. She needs to fill ¼-quart jars. How many jars will she be able to fill?
8One fifth of a number plus three times the number is equal to twice the
number plus 42. What is the number?
Show your work
Answer:
x=-7
Step-by-step explanation:
Set up an equation: 1/5x+3x=2x+42 This is the equation. Now solve.x+3x=10x+42 4x=10+42 6x=-42 x=-7 Hope this helps :D
what is the value of x
Answer:
11
Step-by-step explanation:
3x+2
3(11)+2
33+2
35
Provided that 2a+b=7 and
3a - 2b=3, by how much is 7a
greater than 10?
Answer:
a=2.42, b=2.16
16.94>10
Step-by-step explanation:
We are given: 2a+b =7 and 3a-2b=3 , We need to find how much is 7a greater than 10.
First we need to solve equations to find value of a
[tex]2a+b =7---eq(1)\\ 3a-2b=3---eq(2)[/tex]
Multiply eq(1) by 2 and add both equations
[tex]4a+2b =14\\ 3a-2b=3\\------\\7a=17\\a=\frac{17}{7}\\a=2.42[/tex]
Putting value of a in eq(1) to find b
[tex]2a+b=7\\2(2.42)+b=7\\4.84+b=7\\b=7-4.84\\b=2.16[/tex]
Now, a = 2.42 and b=2.16
Finding by how much is 7a greater than 10
[tex]7a>10[/tex]
Putting a = 2.42
[tex]7a>10\\7(2.42)>10\\16.94>10[/tex]
If (n+1)!=90×(n-1)!,find n.
[tex]\displaystyle\bf\\(n+1)!=90\times (n-1)!\\\\(n-1)!\times n\times(n+1)=90\times (n-1)!~~~\Big|~:(n-1)!\\\\n(n+1)=90\\\\n(n+1)=9\times10\\\\n(n+1)=9(9+1)\\\\\implies~~\boxed{\bf n=9}[/tex]
If you sleep 7 hours every night how many hours are you AWAKE in a year?
Tips:
There are 24 hours in a day. There are 365 days in a year.
A. 2,555 hours
B. 6,205 hours
C. 8,760 hours
D. 5,840 hours
Answer:
B
Step-by-step explanation:
24 - 7 = 17.
If there are 365 days in a year, sometimes 366, you would multiply 17 by 365 or 366.
17 x 365 = 6205
17 x 366 = 6222.
if 3/4 years aren't leap year, then there answer would be B, 365.
Please mark brainliest! I had to make a new account. Hope this helps! <3
How does the simulation work?
ok so basically the technology forces ur mind to trick ur body into actually thinking that it is experiencing the things they want you to experience, and then the actions of life are coded into our brains.... ect
A square solar panel has an area of 16 square feet. Write the area as a power. Then find the side lengths of the panel.
The area of the solar panel written as a power is ___
square feet.
The side lengths of the solar panel are ___
feet.
Answer:
[tex]a : 4^2\\\\b: 4ft[/tex]
Step-by-step explanation:
[tex]\sqrt{16} = 4\\a : 4^2\\\\b: 4ft[/tex]
The area of the solar panel written as a power is 4 square feet.
The side lengths of the solar panel are 4 feet.
What is the area of a square?
Area of square is the square of its side.
It is given that a square solar panel has an area of 16 square feet.
How we find square roots?By simply using this formula;
[tex]\sqrt{x} = x^\frac{1}{2}[/tex]
Taking root square we get;
[tex]\sqrt{16} = 4[/tex]
Thus, power = [tex]4^{2} ft[/tex]
and lengths are = 4 feet
Learn more about area of square,
https://brainly.com/question/3195950
#SPJ2
Tammy, Kelley, and Jim love reading books. Tammy read 7.75 hours last month. Kelley read 7.69 hours. Jim read 7.075 hours. Who spent the most time reading
Answer:
Tammy
Step-by-step explanation:
Tammy read 7.75 hours last month. Kelley read 7.69 hours
Jim read 7.075 hours.
We would arrange the hours of reading from smallest to the highest
7.075, 7.69, 7.75
The person who spent the most time reading is the person with the highest number of hours that was spent reading. This person is Tammy.
Therefore, person who spent the most time reading is Tammy because she read for 7.75 hours.
The person who spent the most time reading is Tammy.
Tammy read 7.75 hours last month reading.Kelley read 7.69 hours reading.Jim read for 7.075 hours.Therefore, from the decimals given, we can see that the highest is 7.75 hours that was used by Tammy.
Learn more about time on:
https://brainly.com/question/2972832
what is the middle splitting term
Answer:
In Quadratic Factorization using Splitting of Middle Term which is x term is the sum of two factors and product equal to last term. To Factor the form :ax 2 + bx + c. Factor : 6x 2 + 19x + 10. 1) Find the product of 1st and last term( a x c).
Step-by-step explanation:
I hope that helped you!! sorry if not!!
If a line contains the point (0, -1) and has a slope of 2, then which of the following points also lies on the line?
A) (0,1)
B) (1,1)
C) (2,1)
Answer:
b
Step-by-step explanation:
Answer:
1,1
Step-by-step explanation:
Using the rise 2 run 1 method, you would get 1,1. Rise 2 (y + 2) run 1 (x + 1)
HELP!!! PLEASE Jessica has already knitted 1 cm of scarf and can knit 2 cm each night. How many nights will Jessica have to spend knitting in order to knit a total of 9 cm??
Answer: ___ nights
Jessica will need to continue knitting for 4 nights.
9cm - 1cm = 8cm
8cm / 2cm = 4 nights
Hope this helps: If it did, please mark brainliest, give a thanks, and rate it five stars! [I'm two brainliests away from moving up!] Have an amazing rest of your day and stay safe! Let me know if you need anymore help! xx
1. Asking a member of each household within a neighborhood about the condition of roads within that neighborhood is an example of measuring a _____.
a. population
b. sample
c. not enough information to decide
Which organisms do primary consumers mainly eat?
Answer:
what kinda Question is that
Step-by-step explanation:
Challenge You have 2 different savings accounts. For Account A, the simple interest earned after months is $. For Account B, the simple interest earned after months is $. If the interest rate is % for Account A and % for Account B, how much is the principal in each account? Which account earned you the most interest the first month? Explain your answer.
Answer and Step-by-step explanation:
The computation is shown below;
As we know that
The simple interest is
Simple interest = Principal × rate × time
For Account A, the principal would be
2 = Principal × 3.2% × 3
So, the principal is $20.83
For account B, the principal would be
38.50 = Principal × 2.2% × 30
So, the principal is $58.33
Now the interest for both the accounts are as follows
For account 1
= $20.83 × 3.2%
= $0.67
And, for the account 2
= $58.33 × 2.2%
= $1.28
As it can be seen that the account 2 has the highest interest
The same is to be considered
A poster board was cut into equal pieces, and 3 pieces were used for
drawings. The fraction below shows how much of the poster board is left.
According to the fraction, how many pieces were not used for drawings?
8/11
A. 11
B. 8
C. 3
D. 5
Answer: 8. There were 11 pieces and 3 were used, so 8 are left.
You are watering a garden. The height h (in feet) of water spraying from the garden hose can be modeled by h(x)=−0.1x2+0.7x+3, where x is the horizontal distance (in feet) from where you are standing. You raise the hose so that the water hits the ground 1 foot farther from where you are standing. Write a function that models the new path of the water.
Answer:
[tex]g(x) = -0.1x^2 + 0.5x + 3.6[/tex]
Step-by-step explanation:
Given
[tex]h(x) = -0.1x^2 + 0.7x + 3[/tex]
Required
Determine the new function
From the question, we understand that the new function wants the water to hit the ground 1 ft farther.
1 ft farther implies x + 1
So, in the given function, we substitute x + 1 for x in [tex]h(x) = -0.1x^2 + 0.7x + 3[/tex]
This gives:
[tex]h(x + 1) = -0.1(x + 1)^2 + 0.7(x + 1) + 3[/tex]
Expand Bracket
[tex]h(x + 1) = -0.1(x + 1)(x + 1) + 0.7(x + 1) + 3[/tex]
[tex]h(x + 1) = -0.1(x^2+2x+1) + 0.7(x + 1) + 3[/tex]
[tex]h(x + 1) = -0.1x^2-0.2x-0.1 + 0.7x + 0.7 + 3[/tex]
Collect Like Terms
[tex]h(x + 1) = -0.1x^2-0.2x + 0.7x + 0.7 + 3-0.1[/tex]
[tex]h(x + 1) = -0.1x^2 + 0.5x + 3.6[/tex]
Hence, the new function is:
[tex]g(x) = h(x + 1) = -0.1x^2 + 0.5x + 3.6[/tex]
[tex]g(x) = -0.1x^2 + 0.5x + 3.6[/tex]
The new model for path of water will be, [tex]h(x+1)=-0.1x^{2} +0.5x+3.6[/tex]
To understand more, check below explanation.
Height function:The height h (in feet) of water spraying from the garden house can be modeled by,
[tex]h(x)=-0.1x^{2} +0.7x+3[/tex]
where x is the horizontal distance (in feet) from where you are standing.
Since, you raise the hose so that the water hits the ground 1 foot farther from where you are standing.
So that, new function will be,
[tex]h(x+1)=-0.1(x+1)^{2} +0.7(x+1)+3\\\\h(x+1)=-0.1(x^{2} +2x+1)+0.7x+0.7+3\\\\h(x+1)=-0.1x^{2} -0.2x-0.1+0.7x+0.7+3\\\\h(x+1)=-0.1x^{2} +0.5x+3.6[/tex]
Learn more about the function here:
https://brainly.com/question/25638609