Water is shot straight up out of a water soaker toy.
The quadratic function y = –16x2 + 32x models the
height in feet of a water droplet after x seconds. How
long is the water droplet in the air?
Help!
Answer:
The water droplet is in the air for two seconds.
Step-by-step explanation:
You can solve this by finding the times at which its height is zero. The lesser of the two values will be upon launch, and the greater upon landing:
y = -16x² + 32x
Let y = 0
-16x² + 32x = 0
factor -16 out:
x² - 2x = 0
complete the square:
x² - 2x + 1 = 1
and solve for x
(x - 1)² = 1
x - 1 = ±1
x = 1 ± 1
x = 0, 2
So the water is at a height of zero at zero seconds and two seconds. It's thus in the air for two seconds.
Use intercepts to graph the linear equation
-2 + 2y = 7.
Answer:
2y=7+2
2y=9
y=9/2
4.5
i hope to help you
I need da answer to it and more
Answer:
The answer is 0 if there are 85 inches in the past year then there wouldn't be any in the present year.
Step-by-step explanation:
The sum of 3 and
twice the number n
what is 18,693.51 as 2dp
Answer:
What are u even talking about
Step-by-step explanation:
Solve for x*
55°
x + 74
I
54°
The Answer Is 180. :)
You buy a pair of Jordan's for $249.99 and pay 6.5% sales tax. What is the total amount you will pay for the shoes? (round to the nearest penny)
Answer:
$266.24
Step-by-step explanation:
Use a sales tax calculator
there are 34 rose bushes currently in the park. Park workers will plant more rose bushes today. When the workers are finished there will be 70 rose bushes in the park. How many rose bushes did the workers plant today
Answer:
I think the answer is C
Step-by-step explanation:
Because they said there are 34 currently so if you add 36 or 34 to 70 it has to be C
PLEASE HURRY I WILL MARK BRAINIEST
The new wing of an art
museum has 3 times
as many windows as
the old wing. Together,
both wings have
32 windows. How many
windows are in
the new wing?
Answer: 24
Step-by-step explanation:
32/4 = 8
3 * 8 = 24
24 + 8 = 32
There are 24 windows in the new wing.
Hope this helped! :)
Two experiments are conducted in which a single 6-sided die is rolled 20 and 80 times. The outcomes of the experiments are shown below. For each result calculate the experimental probability of rolling a ""2."" Express your answer as a reduced fraction and a decimal rounded to three decimal places.
Answer:
Step-by-step explanation:
i will answer it if you give me the choices
The capacity of a cone is 252 cubic cm and 20 cm tall. Find its width
Answer:
252 times 20 then you have to divide the square root of that. It's a quicker way, I learnt it and it really helps.π∞⇆↓∧
Step-by-step explanation:
9th grade Quizziz help please
Answer:
a²+7a+10
a²+5a+2a+10
a(a+5)+2(a+5)
(a+5)(a+2)
a+2 is required factor
Guys please help me with this question. Due now
Answer:
width is 8, length is 11
Step-by-step explanation:
The way in which to find the area of a 2D rectangle is to times length times width. If we assume that our with is 8, three more then that is 11, and obviously 8x11=88!
Hope you find this helpful and have a wonderful day!
Use the given scale factor and the side lengths of the scale drawing to determine the side lengths of the real object.
Answer:
B) 2 in x 5 in
Step-by-step explanation:
6 x 15 (divide each by 3)
2 x 5
Answer: its B
Step-by-step explanation:
Due in 50 minutes for 25 points please help!
Answer:
y = 16.3
Step-by-step explanation:
Based on the altitude theorem of a right triangle, we have:
14 = √(12*y)
Square both sides
14² = 12*y
196 = 12y
Divide both sides by 12
196/12 = 12y/12
16.3 = y
y = 16.3 (nearest tenth)
Please help ASAP if you know how. Thanks so much
Answer:
the answer is C
Step-by-step explanation:
there isn't much to learn here this is just something that you come to know off the top of your head
Mr Sharma's monthly salary is 7,500 of which he spends 6,250 every month. What per cent of Salary he saves?
Answer:
16.66%
Step-by-step explanation:
7500-6250=1250
1250/7500 x 100 = 16.66%
help fast plz I need it
Answer:
<JLK
Step-by-step explanation:
Expand and simplify the following:
6x - 3(2x-1)
Answer:
3
Step-by-step explanation:
=6x-3(2x-1)
=6x-6x+3
=3 Answer
write 7% as a Vulgar fraction
Answer:
7/100
Step-by-step explanation:
This is literally what the percent sign means: "per hundred".
What is 220086*567890
Answer:
124984638540
Step-by-step explanation:
just use a calculator
Which image below shows the result of an image that has been rotated 180° by the origin O?
Answer:
) A (3, 5)
(ii) B (-2, 7)
(iii) C (-5, -8)
(iv) D (9, -4)
Solution:
When rotated through 180° anticlockwise or clockwise about the origin, the new position of the above points is.
(i) The new position of the point A (3, 5) will be A' (-3, -5)
Answer:
i don't see what are you talking about . honestly
I NEED HELP ASAP PLEASEEEE
Answer:
Step-by-step explanation:
1) Find the Mean of all the numbers.
3+4+5+7+10+12+15=56
56/7=8 mean is 8
Now We Calculate Standard Deviation:
S=[tex]\sqrt{(3-8)^2+(4-8)^2+(5-8)^2+(7-8)^2+(10-8)^2+(12-8)^2+(15-8)^2}[/tex]
You take each number from the problem i.e 3,4,5...
and then you subtract the mean from it and then square it.
S=[tex]\sqrt{(-5)^2+(-4)^2+(-3)^2+(-1)^2+(2)^2+(4)^2+(7)^2}[/tex]
S=[tex]\sqrt{25+16+9+1+4+16+49}[/tex]
S=[tex]\sqrt{120}[/tex]
S=[tex]\sqrt{120}/7[/tex]
7 is the amount of data units given in the problem.
120/7=17.1428571429
[tex]\sqrt{17.1428571429}[/tex] =4.1403933560541
Nearest hundredth=4.14
1. Estimate the product of 19.8 and 5 by rounding each factor to the nearest whole number
A. 50
B. 100
C. 95
D. 99
Answer:
the answer is 100
Step-by-step explanation:
as it is told to round the factors to nearest whole no. 19.8 will be 20 and 5 will remain same... 20*5 is 100
What is the measure of XYZ?
Answer:
The measure of Angle XYZ = 34
Step-by-step explanation:
The standard form of an equation of a circle with center at
(h, k)
and radius r is _____.
(y − h)2 + (x − k)2 = r2
(x − h)2 − (y − k)2 = r2
(y + h)2 − (x + k)2 = r2
(x − h)2 + (y − k)2 = r2
(x + h)2 − (y + k)2 = r2
Answer:
The standard form of an equation of a circle with center at (h, k) and radius r is
(x - h)² + (y - k)² = r²
Question 10 of 10
James wants to tile his floor using tiles in the shape of a trapezoid. To make
the pattern a little more interesting he has decided to cut the tiles in half
along the median. The top base of each tile is 15 inches in length and the
bottom base is 21 inches. How long of a cut will John need to make so that
he cuts the tiles along the median?
O A. 18 inches
B. 36 inches
O C. 3 inches
D. 6 inches
Answer:
18 inches
Step-by-step explanation:
The median of a trapezoid is the average of the lengths of the bases.
15 + 21 = 36
36 ÷ 2 = 18
good luck, i hope this helps :)
Answer:
18 inches
Step-by-step explanation:
Refer to this link:
https://brainly.com/question/7564799
what are the souloutions to 2x^2 +7x=4
Answer: x=2, x=-1
Step-by-step explanation:
First you have to make it so that everything is on the same side so 2x^2+7x-4
Then you do cross multiply 2x=4 and x=0. I don't know really how to explain it but the answer is x=2 x=-1
Please i neeed helpp as fast as i needdddd i only got 20 mincyes
Answer:
Suppose that you have a random point (x, y), and now you do a dilation from the origin with a scale factor of k.
Then the new coordinates of the point are:
(k*x, k*y)
Now, in this question, we have a dilation of scale factor k = 1/2.
Then if we start with the point (x, y), after the dilation we will have the point (x/2, y/2)
Now you can notice that instead of this, in the table we have (2*x, 2*y)
So this is the error, the transformation is not correctly calculated.
What is the percent of decrease from 500,000 to 200,000?
Answer:
500,000 to 200,000 is a 60% decrease.