Answers
Related Questions
If a certain cannon is fired from a height of 9.8 meters above the ground, at a certain angle, the height of the cannonball above the ground, h, in meters, at time, t, in seconds, is found by the function h(t) = -4.9t² + 30.5t +9.8. Find the time it takes for the cannonball to strike the ground.
Answers
Answer:
6.53 s
Step-by-step explanation:
The height of the cannon ball is represented by a quadratic function as:
h(t) = -4.9t² + 30.5t +9.8.
At 0 s (i.e. t = 0), h(0) = -4.9(0²) + 30.5(0) + 9.8 = 9.8
That means that the cannon ball is initially at a height of 9.8 m above the ground. To calculate the time it takes the ball to touch the ground, we use:
h(t) = -4.9t² + 30.5t +9.8
It touches the ground when h(t) = 0. Hence:
0 = -4.9t² + 30.5t + 9.8
Solving the above quadratic equation gives:
t = 6.53 s and t = -0.31 s
Since the time cannot be negative, hence t = 6.53 s. Therefore it takes the ball 6.53 s to hit the ground.
A bee flies at 6 feet per second directly to a flowerbed from its hive the bee stays at the flowerbed for 17 minutes, and then flies directly back to the hive at 4 feet per second. It is away from the hive for a total of 22 mins
Answers
Answer:
576 feet.
Step-by-step explanation:
5 - 13 = 2 minutes x 60 =120 seconds that the bee spent flying back and forth.
a - Distance = Time x Speed
Time =Distance / Speed
D / 12 + D / 8 = 120, solve for D
b - D = 576 feet from the hive to the flowerbed.
What way of warming up is preferred after exercise?
A. Static
B. Dynamic
C. Calestitic
D. Isometric
Answers
Answer:
Static
Step-by-step explanation:
By process of elimination, static is the only one that would work.
Answer:
static.
Step-by-step explanation:
[tex]\\ \leq \int\limits^a_b {x} \, dx x^{2} \sqrt{x} \sqrt[n]{x} \leq \geq \neq \lim_{n \to \infty} a_n \int\limits^a_b {x} \, dx \left \{ {{y=2} \atop {x=2}} \right.[/tex]
Graph the line with the equation y = 22 - 2.
y
10
9
8
7
6
5
4
3
2
-10 -9
-8
-7 -6
-5
-4
-3
-2
-
1
2
3
4
5 6
7
8
9 10
-1
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what is 5% as a decimal and a fraction?
what is 10.5% as a decimal and fraction?
what is 135% as a decimal and fraction?
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Answer:
5% = 0.05
10.5%= 0.105
135%= 1. 35
The roots of x2 - 2x - 2 = 0 are
Answers
Answer:
-2X=O
X=0
THE ANSWER IS X=0
Step-by-step explanation:
Hopes it helps
please help due asap
Thanks in advance
Answers
Answer:
83 I think
Step-by-step explanation:
What’s the x value of -4x+12=10?
Answers
Answer:
-4x+12=10
-4x+12-12=10-12
-4x= -2
-4x/-4=-2/-4
x=0.5
Step-by-step explanation:
X=-2/-4 or -2/4 or simply it would be 0.5
You would have to subtract 12 from 10 which would give you -2 on one side and you are left with -4x=-2 then you would have to divide by -4 which then gives you x=-2/-4
Identify the irrational sum(s). Select all that apply. (more than 1 answer
A) √9+ √7
B) 10+ π
C) √16+1/2
D) 2.25+6
Answers
Answer:
A, B
Step-by-step explanation:
An irrational number is a number that cannot be expressed as a fraction for any integers and. Irrational numbers have decimal expansions that neither terminate nor become periodic.
A (bc sqrt7 doesn't terminate)
B (bc pi doesn't terminate)
the others are rational
Someone help please
The prism shown has a volume of 35 cm'.
Work out h, the height of the triangular cross section.
I
h
7 cm
4 cm
Answers
Answer:
the answer would be 4 cm i think
Answer:
the answer is 5.
you need to use the volume formula of the prism and you will get the answer.that is 5
Use the formula to calculate the present value of each payment, assuming an interest rate of 3%. The first several payments have been done for you. Fill in the present value amounts in the table for years 6, 7, 8, and 9.
(Note: Ignore taxes on winnings in this activity.)
PV = FV (1 + r)-t
Future Value Present Value
(0 years) $100,000 $100,000
1 year $100,000 $97,087
2 years $100,000 $94,260
3 years $100,000 $91,514
4 years $100,000 $88,849
5 years $100,000 $86,261
6 years $100,000
7 years $100,000
8 years $100,000
9 years $100,000
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6 years $100,000 $83,748
7 years $100,000 $81,309
8 years $100,000 $78,941
9 years $100,000 $76,642
Ernesto buys a leaf blower price that $100 shipping and handling are an additional 10% of the price how much shipping and handling will Ernesto pay ?
Answers
will mark brainiest pls answer
Answers
Answer:
it is -5.3x-4.2-x
Step-by-step explanation:
I just solved the equation by subtracting or adding.
find the measure of the angle indicated in bold
PLS HELP
Answers
Find the unit rate.
84 miles in 12 days
Unit rate:
Answers
Answer:7
Step-by-step explanation:Divide 84 by 12 and it gives you 7.
Hope it helps :)
Therefore, the unit rate of [tex]\frac{84}{12}[/tex] is [tex]7[/tex].
What is the simplification?
Simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.
As per the given information
[tex]\frac{84}{12}=7[/tex]
Hence, the unit rate of [tex]\frac{84}{12}[/tex] is [tex]7[/tex].
To know more about the simplification
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What is the letter answer?
Answers
Answer:
1: Yes
2: No
3: Yes
4: Yes
Step-by-step explanation:
Answer:
Yes
No
Yes
Yes
Step-by-step explanation:
Identify the model that shows 4 items being divided equally among 3 people. How much will each person have?
Answers
Answer:
1 1/3
Step-by-step explanation:
Over the summer Marty reads 4 times as many pages as the number of pages Nelson and Jennifer read combined Marty reads 1,860 pages and Nelson reads 240 pages
Answers
Please help me!! I'll give Brainliest!! Fairly simple Geometry question!
Answers
Answer:
Option AStep-by-step explanation:
Let's look at the options
A. Equal side lengths and equal diagonal lengths.
CorrectB. Impossible without angle measure.
Incorrect. Option A gives us solution.C. Equal side lengths and diagonals bisect each other.
Incorrect. This could be a rhombus.D. Equal side lengths and diagonals.
Incorrect. Diagonals will have a greater length.-9-11x=68 Steps please
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We can start this equation off by doing the inverse operation for each sides. We add 9 to both sides in order to get rid of the -9 term to get:
[tex]-11x = 77[/tex]
We now divide both sides by -11 in order to "isolate" our x variable to get:
[tex]x = -7[/tex]
Answer:
x=-7
Step-by-step explanation:
-11x=68+9
-11x=77
divide both sides by -11
x=-7
Evaluate this expression.
112.212 − (− 3.25)
Question 1 options:
−115.62
−108,962
109.352
115.462
Answers
Answer:
-115.62
Step-by-step explanation:
bhjka,f
Type the missing number in this sequence:
-33, -35, -37, -39, -41, -43,
Answers
Answer:
well I'm not sure which way u want me to go so i'll do both ways
-31 orr if your going the other way, -45
Solve using long division (2x^3+5x^2-2x-15)/(2x-3)
Answers
If x=4 and y=7, evaluate the following
20 - ( 3 y - 4 x )
Answers
Answer:
15
Step-by-step explanation:
3y=21
4x=16
21-16=5
20-5=15
A circle has a radius of 2.5 cm. What is the diameter of this circle in cm? Record your answer in Blank 1. What is the circumference of this circle? Record your answer in Blank 2 (\large \pi is almost 3.14)______________?
Answers
Answer:
The diameter is 5 cm and the circumference is diameter x pi
Step-by-step explanation:
Three groups of a number plus two.
Answers
of means multiply
These all of the answers for question 4-113:
(The answers are in bold, italic, and underlined. (e.g. word))
If f(x) = 2x - 10, what is f(4)?
O A. -18
B. 8.
C. - 2
D. 2
Answers
Answer:
The answer is -2 or C
Step-by-step explanation:
Just input 4 into the equation as x. f(4)=2(4)-10. This gets you 8-10 which is -2. Hope this helps!
Answer:
hey there, person with the same name as me lol. the answer is c. -2
Step-by-step explanation:
in the question they showed that f(x) = 2x - 10
when they ask for the value of any number like f(4)
just replace the variable with this number
for this it will be
2x - 10 = 2 * 4 - 10
which is 8-10
which is equal to -2
you're welcome....
Kim’s family invested $3000 in a certificate of deposit (CD) for her when she was born. the interest rate is 8% and is compounded quarterly. what is the value of the CD in 5 years? what is the value of the CD if it is compounded annually for 15 years?
Answers
Answer:Kim’s family invested $3000
Step-by-step explanation:
The value of the CD will be an amount of $7487.01 if it is compounded annually for 15 years.
What is Compound interest?Compound interest is defined as interest paid on the original principal and the interest earned on the interest of the principal.
To find the value of the CD in 5 years, you need to calculate the compound interest earned over 5 years.
The interest rate is 8% per year, so the interest rate per quarter is 8% / 4 = 2%.
The value of the CD at the end of each quarter can be calculated using the formula:
CD value at end of quarter = CD value x (1 + interest rate per quarter)
For example, at the end of the first quarter, the CD value would be:
CD value at end of first quarter = $3000 x (1 + 0.02) = $3060
You can repeat this process for each quarter to find the CD value at the end of 5 years.
After 5 years, there will have been 20 quarters (5 years x 4 quarters per year), so the CD value at the end of 5 years will be:
CD value at end of 5 years = $3000 x (1 + 0.02)²⁰ = $4393.84
To find the value of the CD if it is compounded annually for 15 years, you can use the same formula, but use the annual interest rate of 8% and the number of years of 15. The CD value at the end of 15 years will be:
CD value at end of 15 years = $3000 x (1 + 0.08)¹⁵ = $7487.01
To learn more about Compound interest click here:
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what is the value?? its due in 5 minutes
Answers
Answer:
-52
Step-by-step explanation:
Substitute -4 in for x and use PEMDAS to get the answer.
Answer:
C) 44
Step-by-step explanation:
3(-4)^2 - 7(-4) - 32
= 48 + 28 - 32
= 44
mark me brainliest pls!!!
© What is the sum of the 1st square number and the 1st square number?
Answers
Answer:
E
Step-by-step explanation:
bing bing bang
Answer:
2
Step-by-step explanation:
1st square number =1
1+1=2