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
erik [133]
3 years ago
13

1. You were able to purchase a new iPhone on sale for 50% off. The

Mathematics
2 answers:
Lelechka [254]3 years ago
8 0

Answer:

Answer is $800 assuming that no tax is being applied

ra1l [238]3 years ago
8 0
$800
50% means half
So you times by 2
You might be interested in
What is the SLOPE of HI ? Justify your answer hurry PLEASE
PilotLPTM [1.2K]

Step-by-step explanation:

since it is in the same line as DE, both have the same slope.

the slope is the ratio of "y coordinate change / x coordinate change" when going from one point on the line to another.

and so by using the coordinates of D and E

x changes by +4 (from 8 to 12).

y changes by -8 (from 32 to 24).

the slope is therefore

-8/+4 = -2

8 0
2 years ago
Can somebody help me with this problem
soldier1979 [14.2K]
115 degrees because there are 180 degrees in a triangle so let the missing angle in the trinagle be x. Then we have x+75+40=180. Solving for x and subtracting that from 180 (supplementary angles) we get 115 degrees.
4 0
3 years ago
Urgent!
boyakko [2]

Step-by-step explanation:

18.

the last one.

-4.9t² + 24.5t + 117.6 = 0

the ball starts at 117.6 meters height. then, during the first seconds the thrust upwards is adding height, until finally, with more and more seconds passing, gravity will win with a vengeance and pulls the ball down faster and faster than any other force in any other direction.

19.

the general solution for a quadratic equation

y = ax² + bx + c

is

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

x = t

a = -4.9

b = 24.5

c = 117.6

t = (-24.5 ± sqrt(600.25 - -4×4.9×117.6))/-9.8 =

= (-24.5 ± sqrt(600.25 + 2304.96))/-9.8 =

= (-24.5 ± sqrt(2905.21))/-9.8 = (-24.5 ± 53.9)/-9.8

t1 = (-24.5 + 53.9)/-9.8 = -3

t2 = (-24.5 - 53.9)/-9.8 = 8

a negative time does not make any sense, so the real solution is : the ball reached the ground after 8 seconds.

20.

now the equation is

-4.9t² + 24.5t + 117.6 = 49

but this is quickly transformed again into a "= 0" equation :

-4.9t² + 24.5t + 68.6 = 0

t = (-24.5 ± sqrt(600.25 - -4×4.9×68.6))/-9.8 =

= (-24.5 ± sqrt(600.25 + 1344.56))/-9.8 =

= (-24.5 ± sqrt(1944.81))/-9.8 = (-24.5 ± 44.1)/-9.8

t1 = (-24.5 + 44.1)/-9.8 = -2

t2 = (-24.5 - 44.1)/-9.8 = 7

again, negative time does not make sense.

the ball will be at 49 m height after 7 seconds.

5 0
2 years ago
Fred and Wilma have a booth at the county fair. Fred is selling bowling balls, and has made $129. Wilma is selling bowling shoes
S_A_V [24]

Answer:

129 + 20p

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
How many times will we move the decimal in the dividend? 0.9) 6,815.3​
son4ous [18]

Step-by-step explanation:

So when you divide by powers of ten (ten times itself some number of times, like ten, one hundred, one thousand, etc.), the decimal moves to the left. For each power of ten, you move one place to the left. So if you divided a number by one hundred (10^2 or 10*10), you would move two places to the left.

6 0
3 years ago
Other questions:
  • You have a score of 700 but your credit score gets affected by having too much debt and you lose 5% of your credit score. What i
    13·2 answers
  • Wanda Withdrew or deposited money each day this week. her beginning balance was $105.65. If she spent $43 on gas, $12 at the gro
    5·1 answer
  • An auditorium has 20 rows of seats. there are 20 seats in the first row, 21 seats in the second row, 22 seats in the third row,
    13·1 answer
  • Members of the drama club sold T shirts for their upcoming musical. Of the 80 T shirts sold, 55 % were size medium. How many of
    6·1 answer
  • Which of the following statements contain a variable? Check all that apply.
    6·2 answers
  • Which relationship is always true for the angles x, y, and z of triangle ABC? A triangle is shown with a leg extending past the
    14·1 answer
  • Eight minus two times a number is equal to the number plus 17. find the number
    12·1 answer
  • What is the 12th term of the linear sequence below? 13, 7, 1,-5, -11,...
    14·1 answer
  • What's The Strangest Thing In Your Refrigerator?
    14·1 answer
  • Rectangle ABCD has vertex coordinates A(-1, -1), B(-1, -3),C(-4,-3), and D(-4, -1). It is translated 4 units to the rightand ref
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!