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ASHA 777 [7]
3 years ago
10

I don’t know how you do 17.1 divided by 0.9.

Mathematics
2 answers:
andreyandreev [35.5K]3 years ago
7 0
The answer is 19


work :

1-multiply the numbers by a submultiple of 10 to remove the decimal points.
17.1 \times 10 = 171 \\  \\ 0.9 \times 10 = 9

2-

now do the division :
171 \div 9 = 19

so the answer is 19



note: there is no need to get it back to decimal number unless you multiply just one of the numbers or multiply the numbers with different submultiples of 10



good luck
vlabodo [156]3 years ago
3 0
First you can multiply both numbers by 10 to remove the decimals

Then you just divide 171 by 9
=19

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8 0
3 years ago
Plz help w this math problem
Svetllana [295]

Answer:

• for x = 2a√t, make t the subject:

{ \tt{x = 2a \sqrt{t} }} \\  \\ { \tt{ \sqrt{t}  =  \frac{x}{2a} }} \\  \\ { \boxed{ \tt{t =  \frac{ {x}^{2} }{4 {a}^{2} } }}}

• then find y:

{ \tt{y =  {ar}^{2}  - 2at}} \\  \\ { \tt{y =  {ar}^{2} - 2a( \frac{ {x}^{2} }{4 {a}^{2} } ) }} \\  \\ { \boxed{ \tt{y =  {ar}^{2} -  \frac{ {x}^{2} }{2a}  }}}

6 0
3 years ago
A cone has a volume of 108 pi and a base diameter of 12. What is the height of the cone?
serious [3.7K]

Answer:

h  = 9 units of length

Step-by-step explanation:

Volume of a circular right cone is:

V(c)  = (1/3)*Area of the circular base * h

Where h is the height of the cone, then

V(c)  =  (1/3) * π * r² * h

And  we have that  V(c) = 108*π

Then:

108 * π  =  (1/3) * π * r² * h                  (1)

We know diameter of the circular base is 12 units, according to that

r =  d/2     ⇒  r = 12/2     r = 6 units

Then:

108 * π  [ cubic units ]  =  (1/3) * π * (6)² * h  [square units] [ units of length]

When simplifying we have to take into account that in order to keep last equation h needs to have units of length  

Therefore:

108  =  (1/3) * 36 * h

h = ( 108* 3 )/ 36

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7 0
3 years ago
Help needed ASAP will give BRAINLIEST
trapecia [35]
It doesn’t represent a function so your answer is B!!
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Darrell had 13 toy cars. Then he bought 22 cars from the toy store and got 21 cars for his birthday. Darrell gave 5 of the toy c
maks197457 [2]

Answer: 5 toy cars

Step-by-step explanation: Hi there.

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Then subtract your answer (56) from the number of toy cars he gave away to Wayne and his sister: 56-46-5=5

Therefore, Darrel has 5 toy cars left.

Have a nice day! :)

4 0
2 years ago
Read 2 more answers
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