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
solmaris [256]
3 years ago
15

What do you need to do to add and subtract decimals?

Mathematics
2 answers:
olga nikolaevna [1]3 years ago
6 0

Answer:

Write down the numbers, one under the other, with the decimal points lined up

Put in zeros so the numbers have the same length

Then add using column addition, remembering to put the decimal point in the answer

Step-by-step explanation:

Elza [17]3 years ago
6 0
Line up decimals and add/subtract no different then when you’re adding and subtracting normal numbers
You might be interested in
How many grains of wheat should be placed on square 13?
Yanka [14]
Uh 10... because 10 is 10
7 0
3 years ago
A ball is launched from 8 yards off the ground and travels in parabolic motion, landing in a net 80 yards away and also 8 yards
Masteriza [31]

Answer:

The answer to this question is the wall is 45.95 yards tall

Step-by-step explanation:

To solve this, we list out the given variables and the unknowns thus

Height of ball at launch = 8 yards

Distance of net from the ball = 80 yards

Distance of the wall down the path = 75%

Maximum height of the ball= 80 yards

equation of Motion of the ball = parabolic motion =

v² = u² - 2gS

S = 80 - 8 = 72 yards

at maximum height v = 0 thus u² = 2×9.81×72 =1412.64

u = 37.59 m/s

also v = u - gt and again at max height v = 0

Therefore 37.59 = 9.81×t or t = 3.83 s

If the motion of the ball is free of obstruction then time of flight before the ball just reaches the 8 yards off the ground = 3.83×2 = 7.66 seconds

Taking the initial velocity as zero at maximum height and from the equation

S = ut + 0.5×gt² we get, where S is the heigt of the ball from touching the actual field ground which is 80 yards we have

80 = 0.5×9.81×t²

so that t² = 2×80÷9.81 = 16.31 or t = 4.04s

Therefore the total time of flight = 4.04 + 3.83 = 7.87 seconds

if the ball is considered as having a constant horizontal velocity, therefore

at 75% of the way the time it took will be 0.75×7.87 = 5.9 seconds

However time it took  the  ball to reach maximum height and then starts descent = 3.83s, and the time at which the ball is directly over the wall = 2.07 seconds on the second half just after reaching mximum height

Thus at 2.07 seconds the distance trvelled from the maximum height is

S = ut +0.5gt² as before where u = 0

hence S = 0.5×9.81×2.07² = 21.05 yards or (80 -21.05) yards off the ground =  58.95 yards

As stated in the question, the ball cleared the wall by 13 yards therefore the height of the wall is 58.95 - 13 = 45.95 yards

7 0
3 years ago
Answer the question below
Setler79 [48]

Answer:

v=k+5

Kora is 13 yrs old when Venla is 18 yrs old

5 0
2 years ago
If u use 6 inches of yarn for a bracelet how many bracelets can he make with 5feet of yarn
Oduvanchick [21]
He can make 10 bracelets
4 0
3 years ago
Read 2 more answers
The Line plot below shows the lengths of bolts Mr.Slivka found in his drawer He needs 16 bolts that are longer than 1 inch for a
almond37 [142]

Answer:

the answer is D

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • First, Khianna must walk from the front gate to the Ferris wheel. This distance is 2.5 cm on Khianna's map. How far is the actua
    15·1 answer
  • I need to find the missing length indicated
    14·1 answer
  • Which of the following is a linear function?
    8·1 answer
  • An item is regularly priced at $31 . It is on sale for 65% off the regular price.
    10·1 answer
  • BOTS ARE LEGIT EVERYWHERE LIKE I CANT EVEN FIND A SPOT FOR PPL TO POST THEIR REAL ANSWER PLS ANYONE, BRAINLY NEEDS TO BE BETTER
    5·1 answer
  • At a school dance, the ratio of girls to boys is 8:3. If there are 528 students at the dance, how many are boys and how many are
    9·1 answer
  • the system of equations are y=-2x=3 and y=x is graphed what is the soultions to the system of equations
    5·2 answers
  • The dimensions of a triangular prism are shown in the diagram.
    13·2 answers
  • . Write a number in which the value of<br> the 6 is one tenth the value of the 6 ir<br> 35,629.
    12·1 answer
  • Evaluate and leave your answer in simplest form <br> (-4/3) (5/12) (9/10) step-by-step
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!