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Daniel [21]
3 years ago
15

HELP!!! 8th grade math!

Mathematics
1 answer:
ioda3 years ago
5 0

Answer:

B. C. and D.

Step-by-step explanation:

You just have to make sure that every input has ONE output. Or every x-value has a single y-value.

You can have (1,2) (4,8) and (7,12) but you can't have (1,2) (1,4) (2,4)

If you need me to go over it again, let me know! Hopefully this helps, and have a great day!

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Identify the biggest perfect square for 75
mr_godi [17]

Answer:

We just multiply 75 with 3 to make it a perfect square. This is because, 75 = 5 × 5 × 3. 3 doesn't have a pair. Thus 75 × 3 = 225 and √225 is 15.

Step-by-step explanation:

8 0
3 years ago
A box of uncooked spagetti costs $0.1369 per ounce. how much is this rounded to the nearest cent?
m_a_m_a [10]
Money is written with two places after the decimal. To round to the nearest scent, round to the hundredths place. In 0.1369 the 3 is in the hundredths place. Use the number directly after it, 6, to round. Because six is five or greater, it rounds the 3 up to 4. The answer is $0.14
6 0
3 years ago
A Galapagos tortise can walk 1/5 mile in an hour. How many hours would it take for the tortise to walk 1/6 mile?
Fynjy0 [20]

Answer:

0.834 hours

Given that,

A Galapagos tortoise can walk 1/5 mile in an hour.

We need to find time would it take the tortoise to walk 1/6 mile.

1/5 mile = 1 hour

1 mile = 1/1/5 = 5 hours

For 1/6 mile = 1/6 *5 = 0.834 hours

It will take 0.834 hours to walk 1/6 mile.

5 0
3 years ago
A conical paper cup is 10 cm tall with a radius of 10 cm. The cup is being filled with water so that the water level rises at a
polet [3.4K]

Answer:

32cm³

Step-by-step explanation:

the volume of a cone is  

V

=

π

r

2

h

3

in this case, we can relate  

h

and  

r

as we know that the slope =  

h

r

=

10

5

=

2

we can make the volume a formula in a single variable

V

=

π

(

h

2

)

2

h

3

=

π

h

3

12

differentiating wrt time, it follows that

.

V

=

3

π

h

2

.

h

12

=

π

h

2

.

h

4

so to address the question

.

V

=

π

8

2

⋅

2

4

=

32

π

 

c

m

3

/ sec

6 0
3 years ago
Find an expression for the nth term (t_n) in each of the following​
Serhud [2]
<h3><u>Answer:</u></h3>

\boxed{\pink{\tt\longmapsto The \ nth \ term \ of \ the \ sequence\ is \ given \ by \frac{1}{n}}}

<h3><u>Step-by-step explanation:</u></h3>

A sequence is given to us is , and we need to find expression for nth term of the sequence. The given sequence is ,

\boxed{\boxed{\blue{\qquad\bf 1 , \dfrac{1}{2},\dfrac{1}{3},\dfrac{1}{4},\dfrac{1}{5},\dfrac{1}{6}}}}

When we flip the numbers , we can clearly see that the number are in Harmonic Progression.

That is when we flip the numbers they are found to be in Arithmetic Progression .

And nth term of an Harmonic Progression is :-

\boxed{\purple{\bf T_{(Harmonic \ Progression)} = \dfrac{1}{a+(n-1)d}}}

Hence here

  • Common difference = 1
  • First term = 1 .

<u>Substituting the respective values,</u>

\bf\implies T_{n}= \dfrac{1}{a+(n-1)d} \\\\\bf\implies T_{n} = \dfrac{1}{1+(n-1)1}\\\\\bf\implies T_n = \dfrac{1}{1+n-1}\\\\\bf\implies\boxed{\red{\bf T_{n}=\dfrac{1}{n}}}

<h3><u>Hence the nth term of the given sequence is given by ¹/n .</u></h3>

3 0
3 years ago
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