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
Talja [164]
2 years ago
10

Calculate the difference between the two times.

Mathematics
1 answer:
Karolina [17]2 years ago
3 0

Answer:

7 hours and 15 minutes

Step-by-step explanation:

8:15 to 3:15 is 7 hrs then just add the remaining 15 minutes to get to 3:30.

You might be interested in
I NEED HELP WITH B PLEASE!! WILL GIVE BRAINLY
Sladkaya [172]

Answer:

AB = 30 & BD = 16

Step-by-step explanation:

Multiply all sides by two

7 0
3 years ago
3 four drinks at Starbucks cost $14.00. How much do 7 drinks cost?
Ket [755]

Answer:

32.2

Step-by-step explanation:

divide 14 by 3 to get 4.6 then you multiply 7 by 4.6

Hope this helped you

4 0
3 years ago
A projectile is fired from ground level with an initial speed of 550 m/sec and an angle of elevation of 30 degrees. Use that the
Nana76 [90]

Answer:

x (max) = 26760 m

y (max)  = 3859  meters

V = 549.5  m/sec

Step-by-step explanation:

Equations to describe the projectile shot movement are:

a(x)  =  0     V(x)  =  V(₀) *cos α                  x  =  V(₀) *cos α  * t

a(y)  = -g     V(y)  =  V(₀) * sin α  - g*t         y  =   V(₀) * sin α *t  - (1/2)*g*t²

a ) What is the range of the projectile.   α  =  30°

then  sin 30° = 1/2     cos  30° = √3 /2   and     tan 30° = 1/√3

x  maximum occurs when in the equation of trajectory  we make  y  = 0

Then

y  =  x*tan α  -  g*x / 2*V(₀)²*cos²  α

x*tan α  =  g*x /  2* V(₀)²*cos²  α

By subtitution

1/√3    =   9.8* x(max)  / 2* (550)²*0.75

(1/√3) * 453750 / 9.8  = x (max)

x (max) = 453750 / 16.95   meters

x (max) = 26760 m

The maximum height is when V(y) = 0

We compute t in that condition

V(y)  =  0  =  V(₀) * sin α - g*t

t  =   V(₀) * sin α / g       ⇒   t  =  550* (1/2) / 9.8

t  =  28.06 sec

Then  h (max)  =   y(max)  =  V(₀) sin α * t  - 1/2 g* t²

y (max)  =  550* (1/2)*28.06 - (1/2)* 9.8 * (28.06)²

y (max)  =  7717  -  3858  

y (max)  = 3859  meters

What is the speed when the projectile hits the ground

V  =  V(x)  + V (y)    and   t  =  2* 28.06         t  =  56.12 sec

mod V  =√ V(x)²  + V(y)²

V(x)  =  V(₀) cos α    =  550 * √3/2

V(x)  = 475.5  m/sec       V(x)²   =  226338 m²/sec²

V(y) =  550*1/2   -  9.8* 56.12     ⇒  V(y) = 275  -  549.98

V(y) =  - 274.98          V(y) ²   =  

V =  √ 226338 + 75614     ⇒  V = 549.5  m/sec

7 0
3 years ago
The formula Q = MCT where Q = heat flow, M = mass, C = specific heat, and T = change of temperature is used to calculate heat fl
Brums [2.3K]
Q = MCT.....solve for T
Q/MC = T
6 0
3 years ago
A biologist created the following graph to show the relationship between the temperature of water (x), in degrees Celsius, and t
Hoochie [10]

Answer:

<em>A.</em><em> There were 400 larvae at 0 degree Celsius.</em>

Step-by-step explanation:

Here,

x = the temperature of water in °C

y = the number of insect larvae in the water

The graph is a graph of quadratic function as it is a parabola and it opens downward, so it has a negative leading coefficient i.e coefficient of x² is negative.

At y intercept, the line or curve passes through y axis. At y intercept the value of x is zero, because on y axis the value of x is 0.

As the y intercept in this case is (0, 400), so at y intercept value of x is 0 and y is 400.

Therefore, at y intercept or at 0°C there were 400 larvae.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which set of three numbers could be the side lengths of a triangle?
    7·2 answers
  • WOULD U RATHER??<br><br><br> Please show your work<br><br> Which one would u choose?
    11·1 answer
  • You have a 20-ounce bottle of juice. You pour out 1/4 of the bottle to share with a friend. If you pour out 3 ounces for yoursel
    10·2 answers
  • Please help me with this problem. image attached.
    15·1 answer
  • If a car traveled 162 miles in 3 hours, how many hours would it take to travel 351 miles? Please show work! :)
    13·1 answer
  • 5(2 + 9) + 62 help meeee plss
    6·2 answers
  • A rock is thrown upward from the top of a 112-foot high cliff overlooking the ocean at a speed of 96 feet per second. The rock's
    12·2 answers
  • A restaurant owner has found that 80% of her customers return to the restaurant within two weeks. She wants to create a tool tha
    13·2 answers
  • Is 5/12 closer to 0, 1, 1/2
    5·2 answers
  • Please help!! I'll give anyone brainliest for correct answer!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!