The maximum height of the projectile will be 226 feet that is, as per question, the option c.
A quadratic equation , y = ax²+bx+c (equation 1)
given, axis of symmetry is
x = [tex]\frac{b}{2a}[/tex]
As per the question:
The path of the projectile is modeled using the equation :
h(t) = -16t²+48t+190 (equation 2)
h(t) = height after t time.
comparing equation 1 and equation 2, we get
a = -16 and b = 48
further, t = [tex]\frac{48}{2(-16)}[/tex]
= [tex]\frac{48}{32}[/tex]
= 1.5sec
Substituting the found value in equation 2, we get
h(1.5) = -16(1.5)²+48(1.5)+190
h(1.5) = -36+72+190
h(1.5) = 226ft.
Thus, the maximum height of the projectile at 1.5 sec is, 226 feet.
Note that the full question is:
A projectile with an initial velocity of 48 feet per second is launched from a building 190 feet tall. The path of the projectile is modeled using the equation h(t) = –16t2 + 48t + 190.
What is the maximum height of the projectile?
A. 82 feet
B. 190 feet
C. 226 feet
D. 250 feet
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pls help I don't want to fail
Answer:
y = 3x
Step-by-step explanation:
With each x value on the table, the y value is multiplied by 3
Answer:
y=3x
Step-by-step explanation:
Each y value is equal to the corresponding x value times three.
Which graph represents the function f(x) = -|x + 3|?
Answer: i think
Step-by-step explanation:
Answer:
Graph B!!!!
On Edge 2023 Quiz
Step-by-step explanation:
I really don't know where to start with this, but you have to solve for x.
(2x-90)+(2x-90)+x=180
Answer:
x = 72
Step-by-step explanation:
We first remove the parenthesis
2x-90+2x-90+x = 180
Group like terms
2x+2x+x-90-90 = 180
Add the like terms with each other
5x-180 = 180
Add 180 to both sides to cancel the -180 on the left side of the equation
5x = 180+180 = 360
We then divide 360 by 5 to get 72 as x
five machines produce five plates in five hours. how much time do three machines need for three plates?
To make three plates by three machines it will take 05 minutes.
The Production Possibility Frontier (PPF) is a curve on a graph that represents the possible amount that can be produced by two products if they rely on the same finite resource for manufacturing. PPF is also known as the production possibility curve.
Given:
05 machines make 05 plates in 05 hours.
rate of 3 machines is 1 plate per minute,
1 machine makes 5 Plate in = 5 × 5 = 25 minutes.
1 machine makes makes 1 plate in = 25 ÷ 5 = 5 minutes
So, 1 machine can make 03 plates in = 5 × 3 = 15
Thus, 03 machines can make 03 plates in = 15 ÷ 3
= 5 minutes.
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A regular polygon is shown. 10 sided regular polygon Determine the measure of one of its angles.
The measure of one of 10 sides regular polygon angles is 144 degrees.
What is regular polygon?
A regular polygon is one that is direct equiangular and equilateral in Euclidean geometry. Regular polygons can be skew, convex, or star-shaped.
If a polygon's sides and angles are equal, it is said to be regular. As a result, an equilateral triangle is a regular triangle, and a regular quadrilateral is a square.
Let the given regular polygon is 10 sides.
Since, sum of all angels of a 'n' sided polygon = (n - 2)180 degrees.
Value of each angle, in a 'n' sided regular polygon = [(n - 2)180]/n.
So, a 10 sided polygon, sum of all the angles
= (10 - 2) × 180
= 1440 degrees.
Value of each angle, in case it is a regular polygon = 1440/10 = 144 degrees.
Hence, the measure of one of 10 sides regular polygon angles is 144 degrees.
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What is 2/3 of a figure?
Multiply your number by 2/3. If you have a whole number, divide it by a denominator of 1 to get a fraction.
Calculate numerator times numerator, then denominator times denominator when multiplying fractions. For instance, multiply 2/3 x 18/1 to get 36/3 in order to discover two thirds of 18.
Divide the resulting fraction by the common denominator to reduce it as necessary. For instance, 36 and 3 both have 3 as their common denominator. You get a fraction of 12/1 when you divide 36 and 3 by 3, which is equal to 12. Therefore, 12 is equal to 2/3 of 18.
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What is the range of this graph?
Answer: -5
Step-by-step explanation:
Let's start with what we know:
Range is the lowest point on the graph subtracted from the highest point on the graph. Therefore, in this equation, we do:
-9 - (-4) = -5
So the range is -5.
Nora invests $800 that pays simple interest at a rate of 6% per annum and $1200 that pays simple interest at a rate of 7% per annum. What is her total annual interest on these two investments?
Answer:
To find the total annual interest on Nora's two investments, we need to calculate the interest earned on each investment and then add the two amounts together. To find the interest earned on the first investment, we need to multiply the amount invested by the interest rate and the length of time the investment is held. The investment of $800 is held for one year, so the interest earned on this investment is $800 x 6% x 1 = $48. To find the interest earned on the second investment, we need to use the same formula. The investment of $1200 is also held for one year, so the interest earned on this investment is $1200 x 7% x 1 = $84. The total interest earned on both investments is $48 + $84 = $132. Therefore, Nora's total annual interest on these two investments is $132.
Step-by-step explanation:
The ratio of Pablo's age to Richard's age is 6: 7. The ratio of Pablo's age to Tristan's age is
5: 4. Find the ratio of Pablo's age to Richard's age to Tristan's age.
Answer:
The ratio of Pablo's age to Richard's age to Tristan's age is 6:7:4.
Step-by-step explanation:
The ratio of Pablo's age to Richard's age is 6: 7 and the ratio of Pablo's age to Tristan's age is 5: 4. To find the ratio of Pablo's age to Richard's age to Tristan's age, we can first find the ratio of Richard's age to Tristan's age by multiplying the ratios of Pablo's age to Richard's age and Pablo's age to Tristan's age. The product of these ratios is 6/7 * 5/4 = 30/28. Since the ratio of Pablo's age to Richard's age is 6:7, we can add this ratio to the ratio of Richard's age to Tristan's age to find the ratio of Pablo's age to Richard's age to Tristan's age. Thus, the ratio of Pablo's age to Richard's age to Tristan's age is 6:7:4.
(Adding and Subtracting with Scientific Notation MC) help asap
Simplify (2.5 x 10−9) − (5.8 x 10−8). Write the final answer in scientific notation.
A)−5.55 x 10−8
B) −5.55 x 10−9
C) −3.3 x 101
D)−3.3 x 10−1
explain pls
The expression (2.5 x 10⁻⁹) − (5.8 x 10⁻⁸) simplies to -5.55 × 10⁻⁸. Option A. is the answer
How to add and subtract with Scientific Notation?
Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form
Given: (2.5 x 10⁻⁹) − (5.8 x 10⁻⁸)
In order to simplify (2.5 x 10⁻⁹) − (5.8 x 10⁻⁸) rewrite one of the expressions so that the expressions will have the same power. Then, subtract. That is:
(2.5 x 10⁻⁹) − (5.8 x 10⁻⁸) = (0.25 x 10⁻⁸) − (5.8 x 10⁻⁸)
= (0.25 − 5.8) × 10⁻⁸
= -5.55 × 10⁻⁸
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anna lisa bought two dozen apples for $\$$15.60. at that same rate, how much would three dozen of these apples cost?
Three dozen of these apples cost if Annalisa bought is equivalent to $23.40.
Given that:
Annalisa bought two dozen apples for $15.60.
Therefore, the value of one dozen apples will be calculated by dividing both values by 2.
i.e. We can say that,
Annalisa bought one dozen apples for $15.60/2 = $7.80.
So, we have to find out the value of three dozen of these apples.
Hence, we multiply both the 3 to get the cost of three dozen of apples.
Multiplying we get,
Annalisa if bought three dozen apple costs = $7.80 x 3 = $23.40.
We also know that, one dozen = 12 apples
So, three dozen = 36 apples
Therefore, we can say the cost of one apple = 23.40/36 = $0.65
Hence, it costs $23.40 for three dozen apples to Annalisa.
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How do you make a area?
The area is measurement of the surface of a shape. To find the area of a rectangle or a square you need to multiply the length and the width of a rectangle or a square. Area, A, is x times y.
I NEED HELP FASTT PLS HURRY 20 POINTS
Answer:
D
Step-by-step explanation:
the line isn’t dotted so we take also the points that lies on the line
the shaded part is right the line so we take the points >
-12 + = 8
I need help with this one
Answer:20
Step-by-step explanation:
Answer:
Step-by-step explanation:
-12+8=
-4
you would subtract 12 and 8 and then you'd get 4 but you'd put a negative sign with it because 12 is negative.
4 Mackenzie drank 6.95 fluid ounces of water
after recess. Brianna drank 1.7 more fluid ounces
of water than Mackenzie. Combined, how much
water did the girls drink?
Answer:
15.6 ounces
Step-by-step explanation:
6.95 + (6.95 + 1.7) = 15.6 ounces
Jackie has 4 red blocks and 5 blue blocks that weigh 75 ounces. Sam has 4 red blocks and 4 blue blocks that
weigh 65 ounces. How much does the red block weigh? How much does the blue block weigh? Write a let
statement for each variable below, write a system of equations, then solve the system.
Answer:
(6.25, 10)
Step-by-step explanation:
red = x. blue = y
Jackie: 4x + 5y = 75
Sam: 4x + 4y = 65
Solving by elimination
4x + 5y = 75
4x + 4y = 65
--------------------
(4x + 5y = 75) × -1
-4x - 5y = -75
-4x - 5y = -75
4x + 4y = 65
------------------------
-y = -10
÷-1 ÷-1
--------------
y = 10
4x + 4y = 65
4x + 4(10) = 65
4x + 40 = 65
-40 -40
--------------------
4x = 25
÷4 ÷4
-------------
x = 6.25
(6.25, 10)
Each red block weighs 6.25 ounces.
Each blue block weighs 10 ounces.
I hope this helps!
Spiral Review
Find the slope of the line that passes through the points. Need a review? Go back to lesson 3.2 or use the formula below.
If necessary, leave your answer as a fraction, not a mixed number.
a. (-1, 7) and (5, 7)
b. (1, 2) and (5, 0)
NEED HELP NOW!!
Answer: b
Step-by-step explanation:
becuase of the fromula
(6 + 4 + 11 + 10 ÷ 2)
Answer:
[tex]\frac{31}{2} , 15.5[/tex]
Step-by-step explanation:
As you follow PEMDAS and go from left to right, you will begin with addition and end with division.
It may make it easier to visualize it as such:
( ( (6+4) +11+10) ÷ 2)
Furthermore, this will end up being
(31÷2)
This may be written as a fraction or decimal as either:
[tex]\frac{31}{2}[/tex] or [tex]15.5[/tex]
The diagram shows two different forces acting on a cyclist riding a bicycle. The total mass of the cyclist and the bicycle is 120.0 kg. Based on this information, what is the acceleration of the cyclist?
Answer:
0.55 m/s²
Step-by-step explanation:
Fnet = 150 N - 84 N = 66 N
a = Fnet/m = (66 N) / (120 kg) = 0.55 m/s²
Suppose the odds of rain today are 5:9
What would be the probability that it will rain today?
The probability is the odds thus the probability it will rain today will be 5/9.
What is probability?Probability is also known as chance because, if you flip a coin, the chance that it will strike on its head or tail is just a chance that either a head will make an appearance or not.
As per the given,
The odds of rain today are 5:9
Odds will be the equivalent of probability because probabilities is the same as chances.
The probability will be 5/9 or 5:9.
Hence "Since probability implies odds, so possible that it will rain tonight is 5/9.".
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Raquel is playing a game where she throws balled-up paper called a "trashball" into her trash
can. The diameter of the top of the trash can is 20 in. Raquel wants the "trashball" to have a
diameter that is the diameter of the top of the trash can.
What should the diameter of Raquel's
"trashball" be?
d= 5 in.
What should the circumference of
the "trashball" be? Use 3.14 for T.
C= ?
in.
20 in.
The diameter of Raquel's "trashball" should be equal to 5 inches.
The circumference of the "trashball" should be equal to 15.7 inches.
How to calculate the diameter of a circle?In order to calculate the circumference of Raquel's trashball, we would use the formula for the circumference of a circle. Mathematically, the circumference of a circle can be calculated by using this formula:
C = 2πr
C = πD
Where:
D represents the diameter of a circle.C represents the circumference of a circle.r represents the radius of a circle.Since Raquel wants the "trashball" to have a diameter that is 1/4 the diameter of the top of the trash can, we have;
Raquel's trashball diameter = 1/4 × diameter of the top of the trash can.
Raquel's trashball diameter = 1/4 × 20
Raquel's trashball diameter = 5 inches.
Next, we would determine the circumference of the "trashball" as follows;
C = 3.14 × 5
C = 15.7 inches.
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Answer:
Part 1 is 5 inches
Part 2 is 15.7 inches
Proofs For Geometry need at least 7 proofs
The given result ∠Q = ∠S is proved by the criteria of two congruent triangles.
What are the criteria for congruent triangles?Two triangles are said to be congruent when all of their corresponding sides and angles are equal. For this relation between two triangles, there are many criteria such as SSS, SAS, ASA and RHS.
The given triangle shows the following information,
R is the midpoint of QS. It implies that QR = QS.
And, PQ = PS
Now, the relation between ΔPQR and ΔPRS is shown as follows,
In ΔPQR and ΔPRS
PQ = PS (Given information)
PR = PR (Common sides)
QR = RS (R is the midpoint)
Thus, ΔPQR ≅ ΔPRS by SSS criteria.
Since for two congruent triangles, the corresponding sides and angles are equal. For the given triangles ∠Q = ∠S.
Hence, it is proved that ∠Q = ∠S as triangles ΔPQR ≅ ΔPRS.
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Freshman and sophomores were surveyed during lunch about their favorite professional football team.
A bar graph with the first bar labeled Jaguars, divided into freshmen from 0 to 40 percent and sophomores from 40 to 100 percent. The second bar is labeled Dolphins, with freshman from 0 to 45 percent and sophomores from 45 to 100 percent, and the third bar is labeled Buccaneers, with freshmen from 0 to 45 percent and sophomores from 45 to 100 percent.
If 140 students selected Jaguars, how many of those students are freshman?
56 students
63 students
77 students
84 students
With the use of proportions, it was discovered that (D) 96 of the 160 students who chose the Jaguars as their favorite team were sophomores.
What are proportions?A percentage is a component of the total amount, and the three-step rule is used to relate the measurements.
This makes it possible to construct direct or inverse proportional relationships between variables to find the necessary measures in the issue.
When determining if two ratios or fractions are equivalent, the proportion formula is utilized.
By dividing the supplied values, we may determine the missing value.
So, we know that 160 students chose the Jaguars as their favorite team for this issue.
Given that 100 - 40 = 60% of the students in the bar graph were sophomores, the number of sophomores who support the Jaguars is as follows:
96 students are 0.6 times 160.
Therefore, with the use of proportions, it was discovered that (D) 96 of the 160 students who chose the Jaguars as their favorite team was sophomores.
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Complete question:
Freshmen and sophomores were surveyed during lunch about their favorite professional football team.
A bar graph with the first bar labeled Jaguars, divided into freshmen from 0 to 40 percent and sophomores from 40 to 100 percent. The second bar is labeled Dolphins, with freshmen from 0 to 45 percent and sophomores from 45 to 100 percent, and the third bar is labeled Buccaneers, with freshmen from 0 to 45 percent and sophomores from 45 to 100 percent.
If 160 students selected Jaguars, how many of those students are sophomores?
a. 64 students
b. 72 students
c. 88 students
d. 96 students
You plan to put anti-theft devices on each garment in your store. You have 575 garments and it takes an employee 30 seconds to tag a garment. How many hours will it take 3 employees to tag all garments?.
The number of hours it will take 3 employees to tag all garments is 1.60 hour
How to determine the number of hours it will take 3 employees to tag all garments?.From the question, we have the following parameters that can be used in our computation:
Number of garments = 575
Time taken by an employee on a garment = 30 seconds
This means that the variation is an inverse variation
If the time taken by an employee on a garment is 30 seconds
Then the time taken by 3 employees on a garment is
Time taken = 30 seconds/3
Evaluate
Time taken = 10 seconds
For 575 garments, we have
Time taken = 10 seconds * 575
Evaluate
Time taken = 5750 seconds
Express in hours
Time taken = 1.60 hour
Hence, the time taken is 1.60 hour
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I don't understand this tbh and I have been stuck on it foreverr
The height of the balloon before it started its' descent is; 2660 ft
How to solve function tables?We are given a function table with;
time after descent on x-axis in minutes
Height of descent on the y-axis in feet
Let us calculate the slope with the formula;
Slope = (y₂ - y₁)/(x₂ - x₁)
Picking two coordinates;
Slope = (1960 - 2380)/(5 - 2)
Slope = -420/3
Slope = -140 feet/minutes
Now, the equation of a line in slope intercept form is;
y = mx + c
where;
m is slope
c is y-intercept
when x = 11, y = 1120
Thus;
1120 = -140(11) + c
c = 1120 + (140 * 11)
c = 1120 + 1540
c = 2660 feet
We conclude that it is the height of the balloon before descent
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Which expression is equivalent to (1 + cos(x))2Tangent (StartFraction x Over 2 EndFraction) )?
sin(x)
1 – cos(x)
1 – cos2(x)
(1 + cos(x))(sin(x))
(1 + cos(x)) sin(x) is equivalent to the expression (1 + cos(x))² tan(x/2)
How to find which expression is equivalent to (1 + cos(x))² tan(x/2)?
Trigonometric Identities are the equalities that involve trigonometry functions and holds true for all the values of variables given in the equation
Given: the expression (1 + cos(x))² tan(x/2)
(1 + cos(x))² tan(x/2)
In trigonometric Identity:
Since tan(x/2) = sinx / (1+cosx). We have:
(1 + cos(x))² tan(x/2) = (1 + cos(x))² [sin(x) / (1+cos(x))]
(1 + cos(x))² tan(x/2) = (1 + cos(x)) sin(x)
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HELP ME HELP ME!!!! WHAT IS 1+1
The value of square root x to the 2nd power is a real and irrational number when x is equal to
Explain how you got you answer
Answer:
x
Step-by-step explanation:
square root x to the 2nd power is x
square root and 2nd power eliminate each other so it leaves you with x
hopes this helps
does anyone know what the sum of y and 4 is but as an expresion
can anyone help please !
Answer:
See pictures below
Step-by-step explanation:
Desmos is a free graphing calculator. Draw the line of the equation and then < will be everything below the line and > will be everything above the line. The portion that is shaded by both colors is the answer.
y = mx + b
The "b" part of the equation tells you the point that the graph crosses the y axis.
The "m" part is the slope. The rise over the run.