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
olchik [2.2K]
3 years ago
5

Last week during swim practice, Kamil swam 19 laps in 10.8 minutes. This week at swim practice, Kamil swam 18 laps in 12.6 minut

es. What is the difference between his average lap times this week and last week? Please explain.
Mathematics
1 answer:
Lerok [7]3 years ago
6 0
12.6min-10.8min =1.8min
You might be interested in
How many times does the graph of 4x = 32 - x2 cross the x-axis?<br><br> 0<br><br> 1<br><br> 2
Yakvenalex [24]

Answer:

2

Step-by-step explanation:

4x = 32 - x2 would be much clearer if written as 4x = 32 - x^2.  Please use

" ^ " to indicate exponentiation.

Rewrite 4x = 32 - x^2 in the standard form of a quadratic:  x^2 + 4x - 32

Then the coefficients are a = 1, b = 4 and c = -32.

Find the discriminant.  It is b^2-4ac.  

Here, b^2-4ac = 4^2 - 4(1)(-32), or 16 + 128, or 144.

Because the discriminant is positive, we know immediately that this quadratic has two real, unequal roots.

So, the answer to this question is "the graph of 4x = 32 - x^2 cross the x-axis in two places."

4 0
3 years ago
Read 2 more answers
Ramona wants to buy cheese pizza for her family and friends gathering. She stop by nine wonder pizza and figures out that they h
Kryger [21]

Answer:

Large cheese

Step-by-step explanation:

The large cheese because it's two more dollars than the medium and she has a lot of people gathering

6 0
2 years ago
Read 2 more answers
I need help on this question
rosijanka [135]

Answer:

11. Volume = 2181.2mm^3

12. Surface Area = 1204.49mm^2

Step-by-step explanation:

We first need to find the hypotenuse side of the triangle using the Pythagorean theorem:

a^2+b^2 = c^2

13.3^2+20.5^2 = c^2

176.89+420.25 = c^2

597.14 = c^2

24.44 = c

Now we can find the volume using the formula:

V = 1/4(16)sqrt-13.3^4+2(13.3*20.5)^2+2(13.3*24.44)^2

-20.5^4+2(20.5*24.44)^2-24.44^4

V = 2181.2mm^3

To find the surface area using the surface area formula:

A = (13.3*16)+(20.5*16)+(24.44*16)+1/2sqrt

13.3^4+2(13.3*20.5)^2+2(13.3*24.44)^2

-20.5^4+2(20.5*24.44)^2-24.44^4

A = 1204.49mm^2

7 0
3 years ago
Steve has a hammer that is 0.29 meters long. Which expression is equal to the length, in meters, of Steve's hammer?
Damm [24]

Answer:

x = 0.29 m

Step-by-step explanation:

Given :

The length of the hammer is = 0.29 m

The hammer is a tool that may be used in various operation or work by mechanics, plumbers, or masonries and even by normal people.

So let the length of the hammer be x.

The length of the hammer is expressed in meters or inches or centimeters.

Therefore, the expression of length of the hammer is expressed as x = 0.29 m.

7 0
3 years ago
Mary has $80 and want to purchase $150 Michael Jordan sneakers. How much money she need to have $150?
Lesechka [4]
$70. $150 - $80 = $ 70
3 0
3 years ago
Read 2 more answers
Other questions:
  • 20% off $339 what is the answer help me
    9·2 answers
  • 1) Solve for x.<br>x/8 + 3 = 5​
    8·2 answers
  • A number has more tens than ones. the value of the ones digit is 8. what are the possible numbers?
    7·2 answers
  • What’s the correct answer
    13·1 answer
  • 9. Winnie walked 12 miles in 4 hours. If she walked the same distance every hour, how many
    13·1 answer
  • Solve all and: (will give brainly QUICKLEY FOR BEST ANSWERS!!
    15·2 answers
  • QUICK<br> ADD THE EXRESSIONS<br> (10x - 4) + ( -7 + x) = (10x +) + ( -4 + )
    14·2 answers
  • The first equation from the previous system of
    13·1 answer
  • Mr. Jansen opened a savings account with an initial deposit of $720 and will not make any additional deposits or withdrawals. Th
    14·2 answers
  • Helpp please find the value of s! I will give brainlist
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!