Given:
The height of ball is represented by the equation is
[tex]h=-16t^2+6t+4[/tex]
To find:
The time taken by ball to hit the ground.
Solution:
First we need to find the zeroes of the given equation. So, for zeroes h=0.
[tex]-16t^2+6t+4=0[/tex]
Here, [tex]a=-16,b=6,c=4[/tex]. Usingquadratic formula, we get
[tex]t=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
[tex]t=\dfrac{-6\pm \sqrt{6^2-4(-16)(4)}}{2(-16)}[/tex]
[tex]t=\dfrac{-6\pm \sqrt{36+256}}{-32}[/tex]
[tex]t=\dfrac{-6\pm \sqrt{292}}{-32}[/tex]
[tex]t=-\dfrac{-6+ 17.088}{-32},\dfrac{-6+ 17.088}{-32}[/tex]
[tex]t=0.7215,-0.3465[/tex]
Time cannon be negative. So, at t=0.7215 the ball will hit the ground. Time taken by ball to hit the ground is
[tex]t=0.7215-0[/tex]
[tex]t=0.7215[/tex]
Round your answer to the nearest hundredth.
[tex]t\approx 0.72[/tex]
So, the ball will hit the ground after 0.72 seconds.
Therefore, the correct option is A.
Answer:
0.72
Step-by-step explanation:
I took the quiz
Gina Needs To Pack 130 Pens, 50 Pencils And 20 Erasers Into Identical Gift Bags So That Each Item Is Equally Distributed Among The Gift Bags. (I) Find The Largest Number Of Gift Bags That Can Be Packed. (Ii) Find The Number Of Each Item In A Gift Bag.
Answer:
Step-by-step explanation:
I think the best way is to split up the erasers before you do anything. That would mean there were 20 gift bags in all
If you did that, then each gift bag would contain 2 pencils with 10 left over.
Further 130 pens would divide up into 6 pens in each gift bag with 10 pens left over.
3 pts
Question 11
Calculate the mean for a binomial distribution given n=50
and p=0.35.
0 32.5
0 1.37
0 17.5
0 3.37
Do you go to west greene
Step-by-step explanation:
what is the value of expression below when x=2? 2x+6
Answer:
10
Step-by-step explanation:
2(2) + 6
4 + 6
10
Answer:
10
Step-by-step explanation:
A tuxedo shop rents its tuxedos for $30 per day. They charge a nonrefundable fee of $ 60 for each tuxedo.
Use the dropdown boxes to create an equation that could be used to determine the total cost, y of renting a tuxedo for x days.
Given parameters:
Charge per day of Tuxedo = $30 per day
Non-refundable charge = $60 for each tuxedo
Unknown:
Equation to determine total cost = ?
Solution:
Represent;
Total cost = y
Number of days = x
Now;
Total cost = Non refundable charge + charge per day
y = $60 + $30x
The equation is;
y = 60 + 30x for a tuxedo
what is the answer to 5 x 3/5
Answer:
5
Step-by-step explanation:
5×3=15
15÷3=5
Hope this helps :)
Answer: 3
Step-by-step explanation: So first you multiply 5 x 3/5 and then you get ur answer of 3 by 5/1 x 3/5 and then you do 5 x 3 / 1 x 5 = 15/5 and you convert it and you get 3 :)
Convert 0.79 km to m.
Answer:
790
Step-by-step explanation:
Yaa baby
At summer camp the ratio of boys to girls was 5 to 4. If there were 40 boys, how many girls were there?
Answer:
32 girls
Step-by-step explanation: 5*8=40 and 4*8=32
which is greater, √10 or π?
Answer:
the square root of 10 is the answer becuase that = 3.16 and pi is 3.14
Step-by-step explanation:
What is 8.61•10 to the power of negative 8
Answer:
0.0000000861
Step-by-step explanation:
The sum of 36.4 and a number is 39.21, as shown below. What number should go in the box to complete the addition problem?
Answer:
The answer would be 2.
Step-by-step explanation:
U just subtract 39.21 -36.4= 2.81
2.04 • 10 ^23 Which of the following shows and explain the approximate total mass , in grams , of all the atoms of the gas in the container
Answer:
20,400,000,000,000,000,000,000,000
Step-by-step explanation:
10 to the power of 23 is 1 with 23 zeros.
100,000,000,000,000,000,000,000 ⋅ 2.04 20,400,000,000,000,000,000,000,000
Hope I helped :)
Please consider Brainliest :)
(It took so long to type that)
Jorge goes to the store and pays $4.80 for 1.5 pounds of fruit. What is the price per pound of the fruit?
Answer:
$3.20
Step-by-step explanation:
Help please I’ll mark u brainlest
Answer: i can't see the question.
Step-by-step explanation:
What is 1/6 + 1/6 equal to? Pls show your work
Answer:
2/6
Step-by-step explanation:
Well, both Fractions have common denominators so there is no need for extra work.
So:
1/6
+ 1/6
________
2/6
If f(x) = V7x+5, find f(0).
*
Answer:
f (x) = 0
Step-by-step explanation:
since f of x is equal to 0 then when times by 7 and 5 it will be 0
I NEEEEDD HELP PLSSS
Answer: 32/9
:P
Step-by-step explanation:
Answer:
9x - 24 = 8 (D)
Step-by-step explanation:
3/4x - 2 = 2/3
Find ways to get each number (for example the 9x in 9x - 2 = 8) using the 3/4x
If we’re using 9x - 2 as the example, you find how many 3/4s fit into 9, which is 12
So the scale factor is 12.
You do 3/4*12 for 9 and see if it also fits with the -2
-2*12 = -24
You know that that one is wrong.
But if you look, there is an equation that has 9x and -24, so the third one is the answer
(Had I not been lucky enough to find those numbers before, you would’ve just done the same steps with the other problems)
Hope this helps! Good day ^_^
Chau-Ha wants to find a multiple of 2 that will form a ratio with 42 so that the ratio is equivalent to 6/2. she performs the steps below.
Step 1: Highlight the columns for 2 and 6 in the multiplication table.
Step 2: Find 42 in the column for 6, and follow the row until you reach the column for 2.
Step 3: The number 14 forms a ratio with 42.
Step 4: The ratio 14/42 is equivalent to 6/2
in which step did Chau-Ha make the first error?
0: Step 1
0: Step 2
0: Step 3
0: Step 4
~[ i apologize if i spelled anything incorrectly }~
Answer: step 1
Step-by-step explanation: i got it right
Answer:
step 1
Step-by-step explanation:
Which of the following would be equivalent to
113
117
117
O 11. 114
115
011
9514 1404 393
Answer:
11·11^4
Step-by-step explanation:
The applicable rules of exponents are ...
(a^b)(a^c) = a^(b+c)
a = a^1
(a^b)/(a^c) = a^(b-c)
a^0 = 1 . . . . for any 'a' not 0
__
The given expression is ...
(11^8)/(11^3) = 11^(8-3) = 11^5
The offered choices are ...
(11^7)/(11^7) = 11^(7-7) = 11^0 = 1
11·11^4 = (11^1)(11^4) = 11^(1+4) = 11^5 . . . . matches the given expression
(11^0)/(11^5) = 11^(0-5) = 11^-5
11^0 = 1
Water weighs 8 pounds per gallon. How many ounces per gallons does water weight
Answer: 128
Step-by-step explanation:
I need help pleaseeeeeeeee
Im need help im not that clever
Answer:
42.23
Step-by-step explanation:
The bill given after the voucher was used was 36.72.
If we multiply 36.72 with the voucher amount of 15% or .15
36.72*.15=5.508
We then have to add 5.508 to 36.72.
36.72+5.508=42.228=42.23 when rounding up.
PLEASE HELP I HAVE 5 MINUTES HELP!!!!
Maddie's grades on her last 4 tests were 85%, 74%, 94%, 80%. What does she need to get on her fifth test to have a test average of at least 85%?
INEQUALITY:
SOLUTION:
On a map, 1 inch equals 15 miles. If two cities are 5 inches apart on the map, how far are they actually apart?
Answer:
75 miles
Step-by-step explanation:
To find the answer, you should multiply 15 by 5 because if 1 inch is 15 miles, then 5 inches times 15 miles = 75 miles.
Heyyy! What is 0.45 (5 repeating) as a fraction?
Answer:
41/90
Step-by-step explanation:
- The answer given above does not actually have the repeating 5, this fraction does:
x = 0.455555
100x = 45.55555
10x = 4.5555555
90x = 41 (rounded)
therefore, the fraction is 41/90
Input this into a calculator and it gives you the decimal, with the rpeeatign 5s
30 POINTS + BRAINLIEST FIRST CORRECT ANSWER
When 5 and 6 are multiplied by the same factor, how do the ratios compare to the ratio 5:6?
The ratios are equivalent to 5:6.
The ratios are equivalent to 6:5.
The ratios are greater than 5:6, as the factors become greater.
The ratios are greater than 6:5, as the factors become greater.
Answer:
Aren't they equivalent to 5:6?
Step-by-step explanation:
Your situation models to 5x:6x, and no matter what you put as x, it will amount to the ratio of 5:6. It's basically a big fraction, with 5/6 as the simplfication.
Answer:
Step-by-step explanation:
The easiest way to start this is just to multiply the 5 and the 6 by the same thing and see what happens.
Randomly, I will choose 7 because I think today is the 7th.
5*7
====
6*7
35
===
42
I know this is going to seem ridiculous but I'm not going to divide 35/42 by 7.
35 divide by 7 = 5
42 divide by 7 = 6
Just what you started with.
Now a little less obvious, suppose we multiply top and bottom of the ratio by a. a can be anything like (say) the 5th root of 3233
5* a
====
6 * a
Divide the top and bottom by a.
5a divided by a = 5
=======
6a divided by a = 6
So what's the answer? If you've read through this, you'll know that nothing changes.
The answer is the first one.
what is 1230 divided by 12
Answer:
102.5 is the answer sorry if u get I wrong
Round to the nearest tenth 37,636 ? pls help
Answer:
37,640
Step-by-step explanation:
MATHSSSS
Answer:
37,640
Step-by-step explanation:
its so simple good luck
A linear equation has a slope of 2 and goes through points (3,5). Write an
equation for this line in slope intercept form.
Answer:
y=2x-1
Step-by-step explanation:
Cross multiply to solve for x.
6
8
12
х
Value
Correct
Х
please help!!
can someone help please
Which number is an irrational number?
a. 5.38
b. V19
c. -V16
d. -10
Answer:
I think the Answer is B. √19
I hoped this helpful for you
thank you ☺️☺️