1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
makkiz [27]
3 years ago
14

Set up an algebraic equation and then solve the following problems.

Mathematics
2 answers:
Dmitry [639]3 years ago
3 0

3 seconds

solve for when y is zero

0 = -16t^2 + 32t + 48

0 = -16(x^2-2x-3)

0 = -16(x-3)(x+2)

x = 3 or -2

-2 is extraneous because time is not negative in this instance so 3 seconds.


vodka [1.7K]3 years ago
3 0

t=-1 +square root of 2 or t=-1 - square root of 2 is the answer i think

You might be interested in
A hotel wants to know if there's a relationship between gender and the way customers make room reservations. A manager takes a r
padilas [110]

Answer:

Step-by-step explanation:

Here,

H_o: The way of reservation is independent of gender.

H_a: The way of reservation is not independent of gender.

We use a chi square test because we can calculate the expected frequencies for this chart.

Doing an Expected Value Chart,          

         

33.7625   9.7125   30.525  

39.2375   11.2875   35.475

Using chi^2 = Sum[(O - E)^2/E],          

chi^2 =    4.482385929

With df = (a - 1)(b - 1), where a and b are the number of categories of each variable,

a =    3      

b =    2

df =    2

Thus, the critical value is

significance level =    0.05

chi^2(critical) =    5.991464547

Also, the p value is

P =    0.106331579

Thus, comparing chi^2 and chi^2(critical) [or, p and significance level], we   FAIL TO REJECT THE NULL HYPOTHESIS.

Thus, there is no significant evidence that the way of reservation is dependent of gender. [CONCLUSION]

6 0
4 years ago
Prove that 5^7+5^6 is divisible by 6.
Valentin [98]

Answer:

5^7+5^6 = 93750

93750/6 = 15625

Hence 5^7+5^6 is divisible by 6.

Step-by-step explanation:

3 0
4 years ago
Write the word sentence as an equation.
irinina [24]

Answer:

b - 9 = 2 I believe would be it

4 0
3 years ago
Read 2 more answers
The weekly salary check for miss blue is $478. her employer contributes 6.5% to a retirement annuity. what amount is being contr
11Alexandr11 [23.1K]
6.5% of 478.....turn ur percent to a decimal...." of " means multiply
0.065(478) = 31.07 <===
6 0
3 years ago
Read 2 more answers
HELP ME PLZ SO VERY PLZ PLZ
yaroslaw [1]
The value of x will be 23
3 0
3 years ago
Read 2 more answers
Other questions:
  • I need help on 24 and 22! Does anyone get it?
    14·1 answer
  • Find P(Not a 2).<br> I need help with this one
    10·2 answers
  • Tell whether the information in the diagram allows you to conclude that point D lies on the perpendicular bisector of BC.
    10·1 answer
  • Please help<br> log(8)10 - log(8) -3x = 1
    7·2 answers
  • Graph these equations:<br><br> X = -2<br> X = -3
    8·2 answers
  • Sydney's car used 1/ 3/5
    15·1 answer
  • Ten more than three times a number n is forty. How do you write this as an equation, plz i need help.
    15·1 answer
  • Write an equation of the line in slope-intercept form.<br> (sorry it's blurry)
    7·1 answer
  • Can someone please help
    9·1 answer
  • 5) What is
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!