Amanda and her little brother each throw a model airplane at the same time, but from different heights on the playground. The functions h(x) = -16x2 + 24x + 40 and g(x) = -16x2 + 10x + 21 represent the heights of Amanda's plane and her brother's plane, respectively, x seconds after the planes are thrown.

Which of the following statements is true?


Amanda's brother's model airplane will stay in the air for 3 seconds longer than Amanda's model airplane.

Amanda's brother's model airplane will touch ground 2 seconds earlier than Amanda's model airplane.

Amanda's model airplane will touch ground 4 seconds earlier than Amanda's brother's model airplane.

Amanda's model airplane will stay in the air for 1 second longer than Amanda's brother's model airplane.

Answers

Answer 1
Idc Idc lol Idc. Just use the calculator

Related Questions

IM CONFUSED CAN SOMEBODY HELP ME SOLVE THE EQUATION

Answers

Answer:

y = - ½(x - 2)² + 3

Step-by-step explanation:

17 divided into 3,536

Answers

Answer: 208

Step-by-step explanation:

The number 3536 is called the numerator or dividend, and the number 17 is called the denominator or divisor.

The quotient of 3536 and 17, the ratio of 3536 and 17, as well as the fraction of 3536 and 17 all mean (almost) the same:

3536 divided by 17, often written as 3536/17 = 208

A circle has a donated of 4.5cm a larger circle has a diameter of 24cm what is the aporximent diffrent in the circumference of the two circles

Answers

Answer:

difference ≈ 61.3 cm

Step-by-step explanation:

the circumference (C) of a circle is calculated as

C = πd ( d is the diameter ) , then

difference = 24π - 4.5π = 19.5π ≈ 61.3 cm ( to 1 dec. place )

Find the mean, median, and mode of the data set. Round to the hundredths, if necessary. 29,300 24,350 32,400 15,100 14,200 21,950 27,450 29,400 15,200 35,050 16,050 11,500 13,050 11,500 11,600 11,100 21,450

Answers

The mean of the data is 20038.24, the median is 16050 while the number with the highest frequency is 11500

Mean, median, and mode of a dataset

Mean are known as averages, median is the middle value after rearrangement while the mode is the value with the highest frequency

Calculate the mean

Mean = sum of data/sample size

Given the data

29300, 24350, 32400, 15100, 14200, 21950, 27450, 29400, 15200, 35050, 16050, 11500, 13050, 11500, 11600, 11100, 21450

The mean of the data is 20038.24

For the median being the value at the middle, the median is 16050 while the number with the highest frequency is 11500

Learn more on mean, median and mode here: https://brainly.com/question/14532771

Rewrite each of the following expressions without using absolute value bars. |x-4| if x>4

Answers

Given ↓The expression |x-4|

To Find ↓The value of the expression if x>4

Calculations ↓

we're given that x is greater than 4 (the symbol ">" indicates "greater than)

5 is greater than 4. Let's plug it in :

|5-4|

|1|

1 (remember, absolute value is always positive).

Now let's try 6 :

|6-4|

|2|

2

hope helpful ~

Write an equation in slope-intercept form of the line shown.

An equation is

Answers

Answer:

y = - 1/2 x + 1

Step-by-step explanation:

Answer:

y = -1/2x + 1

Step-by-step explanation:

m, rise/run = (2 - 4)/(-2 + 6) = -2/4 = -1/2

b, y-intercept = (0, 1)

y = mx + b

y = -1/2x + 1

HELP ASAP
In the diagram, m ZAFB = 78°

Which angle is supplementary to ZAFB and what is its measure?

Answers

Answer:

Angle AFE = 102(degree symbol)

Step-by-step explanation:

supplementary means two angles that add up to 180

hope this helps! :)

Answer:

The angle supplementary to ∠AFB is ∠EFA.

The reason why this is, is because a supplementary angle consists of two angles that have a sum of 180°.

Supplementary angles combine to form a straight line.

In this case, ∠EFA is the supplement of ∠AFB because, ∠EFA is the other part of the angle, AFB, that creates a full straight line(180°).

And to find the value of m∠EFA you would need to arrange an equation.

Since we know that the given angle measure of AFB is 78°, ∠EFA would have to equal a different measure so that both measures will have a sum of 180°.

We will consider the value of m∠EFA to be 'x' in our equation, so;

x + 78 = 180°

Solve for x:-

-78        -78

x = 102°, therefore m∠EFA = 102°.

The length of a rectangle is six times its width.
If the perimeter of the rectangle is 84 in, find its area.

Answers

Step-by-step explanation:

Length = 6x

width = let x be width

Perimeter = 84 in

Now

Perimeter = 2 ( l + b )

84 = 2 ( 6x + x )

84 = 2 × 7x

84 / 2 = 7x

42 = 7x

x = 42 / 7

x = 6

now

width = 6 yards

length = 6x = 6 × 6 = 36 yards

now

area = l × b

= 6 × 36 yd

= 216 yd²

can somebody help me please

Answers

Answer:f(4) = 122

________________________________________________

Calculate

[tex]Substitute\ x=4\ into\\ f(x)=7x^2+4x-6[/tex]

_________________________________________________

Substitute

[tex]f(4)=7\times 4^2+4\times 4-6[/tex]

___________________________________________________

Calculate the power

[tex]f(4)=7\times 16+4\times 4-6[/tex]

___________________________________________________

Calculate the product or quotient

[tex]f(4)=112+4\times 4-6\\ f(4)=112+16-6[/tex]

___________________________________________________

Calculate the sum or difference

[tex]f(4)=128-6\\ f(4)=122[/tex]

I hope this helps you

:)

What is the difference between the
fastest sprint and the slowest sprint?
Fastest sprint - 12 2/4
Slowest sprint - 10 1/4

Answers

Answer:

2 1/4

Step-by-step explanation:

To find the difference, we must subtract the smaller number from the bigger one. In this case, the equation is 12 2/4 - 10 1/4.

Let us set aside the fraction and subtract 10 from 12 first.

12 - 10 = 2

Therefore, the whole number of the difference will be 2.

Let's solve for the fraction now.

2/4 - 1/4 = 1/4

Therefore, the fraction in the answer will be 1/4.

Add 2 and 1/4 to get 2 1/4, which is the answer.

I hope this helps and please mark me as brainliest!


Approximately how many
years would it take for an
investment of $1,000 to grow
to $1,500 with a simple
interest rate of 8%?

Answers

Approximately 5 to 6 years.

Financial Planning: Purchasing a House
Part One:
1. Download the app Zillow
2. Make an account
3. Make a list of required features
4. Find a house that serves your current and future needs
Part Two:
1. Decide how much money you have for the down payment
2. Calculate how much you need to finance
3. Calculate your monthly payment to mortgage
4. Calculate how long you will be paying off and make a plan
Part Three:
1. Repeat parts one and two more times for a total of 3 potential houses
2. Put them into a graphic organizer and decide which one works best for you.

Answers

The answer is number one (1) download the app Zillow

Find the slope of
the line
Gve your answer as
a fraction in simplest
form.

Answers

Answer:

slope = 1/2

Step-by-step explanation:

we rise 1 and run 2 which gives us y=1/2x

explain in depth how 12 x √3/2 = 6√3 (GCSE MATHS)

Answers

Step-by-step explanation:

I hope this helps, you can ask any question for clarification


Given the matrices A and B, solve for X. Express the numbers using integers or simplified fractions.
Please!

Answers

Answer:

x=5

Step-by-step explanation:

A= 1+4+4+(-4)=5

B= 8+5+4+(-5)=15

15-5=10

10/2=5

x=5

I don't understand someone please help ​

Answers

To find the surface area, we must find the area of each shape.

There are four (4) rectangles: their lengths are 5; their widths are 3.

The formula for the area of a rectangle is length times width.

5 times 3 = 15.

Since there are 4 rectangles total, we can multiply 15 by 4.

15 times 4 is 60.

Next, we have two (2) squares.

The dimensions of the square are 3 by 3.

3 times 3 is 9.

Since we have 2 squares, we can multiply the area of 1 square, 9, by 2.

9 times 2 is 18.

So, the areas of the rectangles are 60, and the areas of the squares are 18.

60 + 18 = 78.

So, the final answer is 78.

9. The area of a rectangle is 12x + 15. The
length of the rectangle is 6. What is the
width of the rectangle?

Answers

Answer:

oh that's hard lol just go to the lowest number and times it on a piece of paper

Name the characteristics a shape has to have to be defined as the following:
Quadrilateral
Triangle
Square

Answers

For a shape to be defined as a quadrilateral it has to have 4 sides.

For a shape to be defined as a triangle it has to have 3 sides, with the angles adding up to 180°

For a shape to be defined as a square it has to have 4 sides and angles. The angles must add up to 360° with equal side and angle length.

Answer:

Shapes are the outlines formed from a given area of figure. The characteristics of shapes vary and depend on what the given shape is. Here are the characteristics of a quadrilateral, triangle, and square.

1. Quadrilateral- Quadrilaterals should have four sides and four corners. As long as these two are present, you can call any shape a quadrilateral regardless of how it is formed.

2. Square- A square is a quadrilateral, so it must contain four sides and four corners. However, a square has its sides and corners equally made.

3. Triangle- A triangle should have three sides or vertices and three corners.

Step-by-step explanation:

.......................................................

Answers

Hope this helps lol :)

John's water bill this month was $19.67 . Looking at the water bill, it says he used exactly 10,000 gallons of water. How much does he pay per gallon of water used?

Answers

Answer:

0.001967 per gallon

Step-by-step explanation:

19.67/10000 = 0.001967

simplify 24.4 / 0.002​

Answers

Answer:

12,200

Step-by-step explanation:

Write the equation of the parabola in vertex form.
vertex (2,4), point (3,2)

Answers

Answer:

y=-3(x-2)^2+4

Step-by-step explanation:

The general equation for the data given is y = a(x-2)^2 + 4 based on the vertex information.

To find a, we use (3,1) to substitute. 1 = a(3-2)^2 + 4   or  a = -3

So the full equation is y = -3(x-2)^2 + 4

if you will solve this math 50 point + brainlists=

5+6+6+83+15×53____84​

Answers

Answer:

5+6+6+83+15×53=895

I hope it helps ty if yes pls make me brainliest take care

6 + 6 = 12

5+15 = 20

53x83= 4399

4399+32=4431

4431- 84 =4,347

please make me brainalist and keep smiling dude I hope you will be satisfied with my answer is updated

and you have asked me to help please tell me

Find the area of this triangle if
C = 138°, a = 16, and b = 7.
A
B•
[? square
units
Round to the nearest tenth.
Enter

Answers

38.1 units^2

Step-by-step explanation:

you can use the formula: 1/2(ab)(sin c)

plug it in: 1/2(16*7)(sin 138)

simplify: 57sin138

plug it into your calculator: 38.1 (rounded)

If you found this answer helpful, I would appreciate if you gave me the brainliest award :D.

Answer:

37.5

Step-by-step explanation:

For acellus

7<2x+3<=13 write solution in interval notation

Answers

Answer:

2<x<_5

Step-by-step explanation:

9.9 ft 7.2 ft The figure above shows a movie screen with dimensions shown in feet. What is the length of the diagonal of the screen, in feet? Give the exact solution or round your answer to the nearest tenth of a foot.​

Answers

Answer:

12.2

Step-by-step explanation:

use the Pythagorean theorem to determine the diagonal

9.9^2 + 7.2^2 = d^2

d = 12.2

Find the sum of the interior angle measures of a 14-gon.
The sum is___ degrees.

Answers

Step-by-step explanation:

the sum of interior angles in a triangle is 180°.

the sum of interior angles of a polygon, is the product of the number of triangles in the polygon (that can be created from a single vertex or corner via lines to all other corners) and 180°.

so, in reality, the number of triangles in each polygon is two less than the number of sides (because the lines to the 2 neighboring corners are sides and do not create triangles).

so the formula for the sum of all interior angles is

(n - 2) × 180

with n being the number of sides of the polygon.

in our case

(14 - 2) × 180 = 12×180 = 2160°

Debbie receives 25% commission on all sales. Her sales totalled $400. How much commission does she earn?​

Answers

Answer:

  $100

Step-by-step explanation:

Debbie's earnings are found by multiplying her commission rate by her sales:

  0.25 × $400 = $100

Debbie earns $100 commission on her sales.

Naoya read a book cover to cover in a single session, at a rate of
55
5555 pages per hour. After reading for
4
44 hours, he had
330
330330 pages left to read.
How long is the book?

Answers

Answer:

550pages and 10 hours

Step-by-step explanation:

-3 1/2 - (-4 1/4) on

Answers

3 ¾

Step-by-step explanation:

-3½+4¼=-²/⁴ +17/4=15/4

Answer:

5/4 or 1 1/4

Step-by-step explanation:

-3 1/2 - (-4 1/4) multiply the number by the denominator and add the numerator: -3*2 = -6 + 1 = -5 same for the other...

-5/2 - (-15/4) now you need the same least common denominator...

-10/4 + 15/4

= 5/4 or 1 1/4

PLEASE RATE!! I hope this helps!!

If you have any questions comment below

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