1. The graph below shows the height of an object that has been launched off a 50-foot-high wall. After approximately how many seconds does the object reach its maximum height?
1.8 seconds
4.4 seconds
3.7 seconds
2 seconds
Answers
Answer: Its 2 seconds
Step-by-step explanation:
I took the quiz
The object reach its maximum height at 2 seconds.
WE are the given curve shows the height of an object which has been launched from 50 foot high wall with respect to time.
So we can see that the curve initially starts from the height of 50 feet.
Here in the middle the height of the object is maximum and immediately after that the height decreased in the graph.
At that maximum height time from the graph we can find that the height of the object goes upto 106 feet.
We can see in the graph that it hits the ground when the height is equal to 106.
t = 2 seconds
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Related Questions
Help this is due today!!!!
Answers
Its the first one, hope u pass lol
Answer:
The second option: 3.5x+685[tex]\leq \\[/tex]85
Step-by-step explanation:
The addition fee is 6 meaning adding not subtracting. Cancel out the first and last one. Then, it says without going over. Meaning it could equal exactly $85. Which means [tex]\leq[/tex]. So it would be the second option.
A restaurant wants to test a new in-store marketing scheme in a small number of stores before rolling it out nationwide. The new ad promotes a premium drink that they want to increase the sales of. 20 locations are chosen at random and the number of drinks sold are recorded for 2 months before the new ad campaign and 2 months after. The 90% confidence interval to estimate the true average difference in nationwide sales quantity before the ad campaign and after is (3.96, 28.79). Which of the following is the appropriate conclusion?
1) We are certain the average difference in sales quantity between after the ad campaign to before for all stores is between -3.83 and 1.83.
2) We are 95% confident that the difference between the average sales after the ad campaign and the average sales before the ad campaign is between-3.83 and 1.83.
3) The proportion of all stores that had a difference in sales between after the ad campaign to before is 95%.
4) We are 95% confident that the average difference in the sales quantity after to before of the stores sampled is between -3.83 and 1.83.
Answers
Answer:
2 or 4
Step-by-step explanation:
Heidi must pay 7.25% sales tax on her purchase of $25. Which expression can be used to calculate the amount of sales tax she must pay?
Answers
Answer: $1.81
Step-by-step explanation:
x=a(amount of money) * b(tax)
II. Find the mean, media and mode of each set of data.
1. 12, 12, 14, 16, 18, 20
2. 80, 83, 82, 85, 87, 93, 83, 85, 88, 80
3. 125, 100, 150, 125, 175
Answers
Answer:
1. Mean = 15.33
Median = 15
Mode = 12
2. Mean = 84.6
Median = 84
Mode = 80, 83, 85
3. Mean = 135
Median = 125
Mode = 125
Step-by-step explanation:
Hope it helps:)
I. Mean = Sum of all observations / No. of observations
=> 12 + 12 + 14 + 16 + 18 + 20 / 6
=> 92 / 6
= 15.33333.....
= 15.3
Mode = 12
Because 12 is occurring most frequently.
Median
Step 1 => Arrange the values in ascending order.
Step 2 => Then the middle observation will be the median of the data.
Here we will get 2 numbers as the median but since it is not applicable we will use another method.
12, 12, 14, 16, 18, 20
Find average of 14 and 16
14 + 16 / 2
30 / 2 = 15
Therefore Median of the data is 15.
The answers to other 2 question are there in the image attached.
47/94 in lowest terms
Answers
Answer:
Find the GCD (or HCF) of numerator and denominator. GCD of 47 and 94 is 47.
47 ÷ 4794 ÷ 47.
Reduced fraction: 12. Therefore, 47/94 simplified to lowest terms is 1/2
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
You just keep simplifying.
Find the GCD of the numerator and denominator. The GCD of 47 and 94 is 47.
47 divided by 4794 divided by 47
Reduced fraction: 12. So 47/94 simplified is 1/2
what is 90oz = __lb __oz
Answers
Answer: 90 ounces would equal to 5.625 pounds
Step-by-step explanation:
work out the value of 35-3×9
Answers
Answer:
[tex]35 - 3 \times 9 \\ = > 35 \: - 27 \\ = > 08[/tex]
hope helpful <3
Answer:
8
Step-by-step explanation:
the most important thing to remember here is the priority, multiplication before substraction
35 - 3 * 9 = 35 - 27 = 8
HELP PLEASE!
I need the answer please!
Answers
Answer:
The triangles are similar in that the smaller triangle was dilated by a scale factor of 1/4 which means that the length of the missing side is 20m
Step-by-step explanation:
5.
Are the graphs of the lines in the pair parallel? Explain.
y = 3/7 + 11
–3x + 7y = 13
A. No, since the slopes are different.
B. No, since the y-intercepts are different.
C. Yes, since the slopes are the same and the y-intercepts are the same.
D. Yes, since the slopes are the same and the y-intercepts are different.
Answers
Answer:
D. Yes, since the slopes are the same and the y-intercepts are different.
Step-by-step explanation:
yes because both line have a slope of .857/2
...................................................................................................................................................
yes; both have a slope of 3/7
...................................................................................................................................................
Yes. They have the same slope.
A piece of brass contains 1.66 grams of copper and 0.34 gram of
zinc. What is the mass of the piece of brass in grams?
Answers
Answer:
2.00 grams
Step-by-step explanation:
1.66 + 0.34 = 2.00
2.00 grams
When y = -20, x = 4.
Find y when x = 7
Answers
Answer:
y=-35
Step-by-step explanation:
The relationship between the values of x and y is multiplying by -5.
Therefore, when x equals 7, y is -35.
Just a splendiferous teen,
who listens to "Fight Song,"
stay salty...
what is 2:110 simplified
Answers
Answer:
fraction way:1/55
0Step-by-step explanation:
The angles of a triangle add up to 180 degrees.
The second angle is 25 degrees larger than the smallest angle.
The third angle is 3 times as big as the smallest angle.
Find the measure of the smallest angle (in degrees)
Answers
Is p→q≡∼p∨q true or false?
Answers
Show that (p → q) ∨ (p → r) and p → (q ∨ r) are logically equivalent. By the definition of conditional statements on page 6, using the Com- mutativity Law, the hypothesis is equivalent to (q ∨ ¬p) ∨ (¬p ∨ r). ... This means that the conditional from the second-to-last column the last column is always true (T).
10.
Which of the following is the maximum value of the function y = −2x2 + 5?
A. 0
B. 5
C. 25
D. −2
Answers
Answer:
Step-by-step explanation:
Hello, the answer in this case would have to be 5 as the vertex of the lowest point of 0.
Therefore x would have to be 0.
Answer:
A. 0
Step-by-step explanation:
Use the formula x = − b /2 a to find the maximum and minimum.
( 0 , 5 )
Suppose that the function f:[a,b]-->R is bounded and that it is continuous except at one point x_0 in the open interval (a,b). Prove that f:[a,b]-->R is integrable.
Answers
Answer:
Step-by-step explanation:xn − xn−1 + xn−1 − xn−2 + ··· + x2 − x1 + x1 − x0. = xn − x0. = |I|. Suppose that f : [a, b] → R is a bounded function on the compact interval.
What's the increasing & decreasing interval of f(x)=1/2|x+7|?
Answers
Answer:
Increasing interval is for all values of x that the function is defined by, in other words x is greater or equal to 0.
And there are not decreasing intervals.
Increasing interval is when the slope of the tangent at the function is positive.
Decreasing interval is when the slope of the tangent at the function is negative.
find a polynomial of degree 4 that has integer coefficients and zeros 3i and 4 multiplicity 2
Answers
Answer:
f(x) = x⁴ - 8x³ + 25x² - 72x + 144
Step-by-step explanation:
f(x) = (x-4)²(x+3i)(x-3i)
= (x²-8x+16)(x²+9)
= x⁴ - 8x³ + 25x² - 72x + 144
A sum of money is shared among Ben, jack, and Sarah in the ratio 6:8:10. If Sarah receives $50 how much does Ben receive?
Answers
Step-by-step explanation:
Sarah receives $50 in ratio 10
if 10÷2=5
$50÷2=25
hence 6=1
1=x Cross Multiply
6x÷6 = 1÷6
x = 0.1666…
Hence Ben gets ($50÷2+{0.1666…})
$25+0.166… = $25.166…
Benjamin has a ladder that is 15ft long. He wants to lean the ladder against a vertical wall so that the top of the ladder is 13.8ft above the ground. What is the angle, rounded to the nearest tenth, that the ladder make with the ground? Show your work.
Answers
Answer:
∠ = 66.9°
Step-by-step explanation:
Sin ∠ = opposite/hypotenuse
Sin ∠x = 13.8/15
In the graphing calculator use
[tex]sin^{-1}(13.8/15) = 66.9[/tex]
The angle to the nearest tenth is 66.9 degrees.
In order to determine the angle, the SOCAHTOA notation would be used. The ladder would form a right-angled triangle. we have the value of the opposite and the hypotenuse. So, sine would be used to determine the value of the angle.
Sine = opposite / hypotenuse
[tex]sine^{-1}[/tex] = 13.8 / 15
= 66.9 degrees
A similar question was answered here: rainly.com/question/25627150
You have 1000000 small cubes.
Each cube measures 1 inch on a side.
If you arranged the cubes on the floor to make a square, what would be the length of each side?
Answers
Answer:
1000 in
Step-by-step explanation:
Given
The dimension of the small cube is 1\ in.1 in.
No of the cubes is 10^6106
If the small cubes are arranged on the floor
The area of the cubes is
\Rightarrow 10^6\times 1^2\ in.^2⇒106×12 in.2
Evaluate the expression 0.5a - 2b , when a=-5 and b=2
Answers
Answer:
-6.5
Step-by-step explanation:
To evaluate the expression we have to substitute a= -5 and b =2.
0.5a - 2b
= 0.5 * (-5) - 2 *2 , first multiply 0.5 *(-5) and 2*2
= -2.5 - 4, subtract (-2.5) and 4
(you can think at this as (- 2.5) +( - 4) because subtraction is just like adding a negative number )
= -6.5
3^8*__^8 = 12^__ Please help!!!!! I need urgent help!! Please!! I'll give you brainliest!!!!
Answers
Answer:
See below:
Step-by-step explanation:
Hello! My name is Galaxy and I will be helping you today :DD. I hope you are having a nice day.
So based on the question we need to do two steps, Rules of Exponents, and Solving. I'll go ahead and start with Exponential Rules first.
Rules of Exponents
The rules of exponents are simple, they boil down to a few things at this level of math:
+ To Multiply Exponents, we can add the Exponents of the Bases.
(Example: [tex]x^{2}*x^{3}=x^{5}[/tex])
+ To Divide Exponents, we need to subtract the Exponents of the Bases.
(Example: [tex]\frac{x^{5} }{x^3}=x^2[/tex])
Now that we know that, we can solve for the equation.
Solving
So, we need to solve for the blanks in this equation:
[tex]3^8*x^8=12^y[/tex]
**Where x and y are unknown.
So, first we know that for the multiplication of exponents, we need to add the exponent, so with that we know that it has to be 8 giving us our y.
Second of all, we know to multiple and solve for x we need to divide 12 by 3.
After doing that, and using basic math, we get x is equal to 4.
We can check our answers by inserting what we found into the equation:
[tex]3^8*4^8=12^{8}\\\\429981696=429981696[/tex]
Therefore, the answers are:
First blank is equal to 4, and the second blank is equal to 8.
We've checked our answers and they are correct!
Cheers!
6. Light travels about 180 million kilometers in 10 minutes. How far des trave
minute? How far does it travel in 1 second? Show your reasoning,
from Unit 2, Lesson 9.)
260 Student Edition
Grates in KM
Answers
Answer:
The light travels distance in 1 minute=18 million kilometers
The light travels distance in 1 second=0.3 million kilometers
Step-by-step explanation:
We are given that
Light travels total distance in 10 minutes=180 million kilometers
We have to find the distance travels by light in 1 minute and in 1 seconds.
By unitary method
Distance travel by light in 1 min=million kilometers=18 million kilometers
Distance travel by light in 1 min=18 million kilometers
We know that 1 minute=60 seconds
In 60 seconds, light travels distance =18 million kilometers
In 1 second, light travels distance = million kilometers
Hence, the light travels distance in 1 minute=18 million kilometers
The light travels distance in 1 second=0.3 million kilometers
Hope this helps, have a nice day/night! :D
what are the names of four coplanar points
Answers
Answer:
the answer is Points P, M, F, and C are coplanar.
Step-by-step explanation:
I hope this helps
A car is traveling at a constant speed of M miles per hour. Which coordinate is
represented on the graph?
Answers
The cordinate of a car driving at M miles per hour on a graph is ( 1, M)
What is cordinate?Coordinates are a set of values which helps to show the exact position of a point in the coordinate plane.
The cordinate of a point Q is represented by
Q( a, b) where a is the cordinate on x axis and b is the cordinate on y axis.
For example is a point B is located on a plane as ;
B( 2,3) , the 2 is the value on x axis and 3 is the value on y axis.
Therefore, For a speed of a car of M miles in 1hr, then
Speed = distance /time
This means on the graph , M will be on y axis and 1 hrs will be on x axis.
Therefore the cordinate of the speed of the car is
( 1, M)
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What does 312,819 round to, to the nearest ten thousand?
Answers
Answer:
310,000
Step-by-step explanation:
-5x=5 solve for x plssss help
Answers
Answer:
x=-1
Step-by-step explanation:
-5x=5
-x=1
x=-1
or solve this way
-5x=5
5x=-5
x=-1
[tex] \Huge\begin{gathered} {\underline{\boxed{ \mathcal{\purple{Answer}}}}}\end{gathered}[/tex]
[tex]{{ \large{ \orange{ \rm{{➥}}}}}} \rm \large \: \:5x \: = \: 5[/tex]
[tex]{{ \large{ \orange{ \rm{{➥}}}}}} \rm \large \: \:x \: = \: \cancel\frac{5}{-5} \\[/tex]
[tex]{{ \large{ \orange{ \rm{{➥}}}}}} \rm \large \: \:x \: = \: -1[/tex]
Please helpp :(
no links
Answers
Answer:
40
Step-by-step explanation:
Divde the figure into three different rectangles. Find the area of each rectangle and add it all together.
2. How many solutions are there to a quadratic equation? (Hint: Give your answer as it
relates to the x-axis
