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
zepelin [54]
4 years ago
11

How do you know that the answer to a decimal subtraction problem is reasonable​

Mathematics
1 answer:
dedylja [7]4 years ago
7 0

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ You know the answer to a decimal subtraction problem is reasonable by estimating. You can also add up the subtrahend and the difference to check if your answer is correct.

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

You might be interested in
Please help me with the below question.
o-na [289]

Given that

\vec r(t) = \left\langle 4t e^{-t}, 8 \arctan(t), 8 e^t \right\rangle

we first differentiate with respect to t to get the tangent vector, \vec T(t) :

\vec T(t) = \dfrac{d\vec r}{dt} = \left\langle (4-4t) e^{-t}, \dfrac8{1+t^2}, 8e^t \right\rangle

At t = 0, the tangent vector is

\vec T(0) = \left\langle 4, 8, 8 \right\rangle

To get the <em>unit</em> tangent vector, multiply this by 1/(norm of tangent vector) :

\|\vec T(0)\| = \sqrt{4^2 + 8^2 + 8^2} = \sqrt{144} = 12

Then the unit tangent vector is

\dfrac{\vec T(0)}{\|\vec T(0)\|} = \left\langle \dfrac4{12}, \dfrac8{12}, \dfrac8{12}\right\rangle = \boxed{\left\langle\dfrac13, \dfrac23, \dfrac23\right\rangle}

7 0
2 years ago
An area of a square is 1.56 square feet what si the area of a floor covered with 10 to the third power tiles?
Diano4ka-milaya [45]

Answer: 1560 ft squared

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Laura received a $80 gift card for a coffee store. She used it in buying some coffee that cost $8.32 per pound. After buying the
MAVERICK [17]

Answer:

16.32

Step-by-step explanation:

8.32x-55.04=80

Add 55.04 on each side:

80+55.04=135.04

8.32x=135.04

Divide 8.32:

x=(Estimated) 16.32

4 0
3 years ago
Please help answer this
yuradex [85]

I think you can use cosine rule if only the lines that form the <52 are equal.

6 0
3 years ago
Please help me on this
Leona [35]
The answer is 14 beachside every 10 hours trained, you get an extra 100 dollars.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Carlos Martin received a statement from his bank showing a balance of $56.75 as of March 15th. His checkbook shows a balance of
    8·1 answer
  • Write a number that has a zero in the tens place draw a quick picture for your number
    9·1 answer
  • Urgent
    11·1 answer
  • Davis performed an experiment in which he spun a 4-color spinner 20 times. He recorded his results in the frequency table.
    9·2 answers
  • Carlos is making belts.He uses 12 rivets each on 4 belts and 15 rivets each on 2 belts.How many rivets are on the belts.
    9·2 answers
  • BRAINLIEST
    8·1 answer
  • Which is the best sale?
    15·2 answers
  • If 4 less than three times a number, p, is twice the
    7·1 answer
  • Which expression is equivalent to 6x - 3y?
    9·2 answers
  • No links pls answfast
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!