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
umka21 [38]
3 years ago
14

If a car travels 247 miles in 4 hours and 45 minutes. How many miles does it travel per hour

Mathematics
1 answer:
slavikrds [6]3 years ago
8 0

Answer:

52 miles per hour

Step-by-step explanation:

247/4.75 = 52

You might be interested in
Fill in the blanks using the following choices: reject, fail to reject, sufficient, enough, not sufficient, not enough If the p
Nat2105 [25]

Answer:

FAIL TO REJECT

NOT ENOUGH

Step-by-step explanation:

Given a Pvalue of 0.32

Decision region :

When Pvalue < α ; Reject the Null and conclude that there is significant or enough evidence to accept the alternative hypothesis.

Otherwise, fail to reject reject the null and conclude that, there is not enough evidence to accept the alternative hypothesis

Therefore, for the scenario above, where Pvalue = 0.32

Possible α values are ; 0.1, 0.05, 0.01

For all α - values listed, the Pvalue is greater than α

Pvalue > α ; Hence, FAIL TO REJECT the Null.

Conclusion :

There is NOT ENOUGH evidence to support the alternative that the proportion of students who have ear infection at one school and the other is different.

4 0
3 years ago
Determine whether the given signal is a solution to the difference equation. Then find the general solution to the difference eq
Ulleksa [173]

Answer:

The answer to this question can be defined as follows:

Step-by-step explanation:

The given equation is:

y_{k + 2} + 8y_{k +1} - 9y_{k} = 20k + 12..(1)

put,

y_k = k^2\\\\y_{k+2}=(k+2)^2\\\\y_{k+1}=(k+1)^2\\\\

(k+2)^2+8(K+1)^2-9k^2 = 20k+12\\\\=20k+12= 20K+12\\\\

hence y_k=k^2 is its solution.

Now,

\to y_{k+2}+ 8y_k + 1 - 9y_k = 20k + 12

the symbol form is:

(E^2+8E-9)_{yk}=20k+12

\to m^2+8m-9=0\\\\\to m^2+(9-1)m-9=0\\\\\to m^2+9m-m-9=0\\\\\to m(m+9)-(m+9)=0\\\\\to (m+9)(m-1)=0\\\\\to m=-9 \ \ \ \ \ \ \  m=1\\

The general solution is:

y_k =  c_1(-9)^k + c_2(`1)^k\\\\y_k =c_1(-9)^k+c_2

The complete solution is:

y_k=(y_k)_c+(y_k)_y\\\\y_k= c_1(-9)^k+c_2+k^2

The answer is option b: y_k = k^2 + c_1(-9)^k + c_2

After solve the complete solution is:

\bold{y_1=c_1(-9)^k+c_2+k^2.....}

5 0
3 years ago
Solve for h. 3/7=h/14-2/7
Slav-nsk [51]

Answer:

h = 10

Step-by-step explanation:

Given

\frac{3}{7} = \frac{h}{14} - \frac{2}{7}

Multiply through by 14 to clear the fractions

6 = h - 4 ( add 4 to both sides )

10 = h

3 0
3 years ago
Read 2 more answers
Find the area of the shaded region<br> 10cm by 8cm
EastWind [94]
80 is the answer to your problem
7 0
3 years ago
What is a number that when you divide it by 4 and subtract 3 from the quotient, you get 13?
inysia [295]

64

//

64 \div 4 = 16

16 - 3 = 13

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the x and y intercepts of x + y=4?
    10·2 answers
  • Suppose you rent a limousine for a formal reception. The bill for the evening is $53.00. A tax of 6% will be added, and you want
    5·1 answer
  • Ben bought an item in a grocery store marked at $8, and the total bill with sales tax was $8.28. What was
    11·2 answers
  • Jasmine is 60 3/4 inches tall amber is 58 1/4 inches tall. How much taller is jasmine than amber​
    7·1 answer
  • This is urgent plz question is below
    5·1 answer
  • The base of an exponential function can only be a positive number true or false?
    14·2 answers
  • 2y-x=3/4(-y+1) solve for y
    14·1 answer
  • At Snack Shack, drinks cost $1.50. Write an expression that could be used to find the total cost in dollars of d drinks.
    7·1 answer
  • Can I get an explanation on how to do this?
    6·2 answers
  • The volume V​ (in cubic feet) of a right cylinder with a height of 6 feet and radius r (in feet) is given by V=6πr2​ . Solve the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!