4 years ago

Is 5.78778777... A rational or irrational number

Mathematics

1 answer:

Minchanka [31]4 years ago

8 0

It is irrational because it does not repeat a pattern nor does it stop.

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Can you help me please here is the image

erica [24]

Answer:

f=u+2

Step-by-step explanation:

math

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3 years ago

The nth term of a sequence is n^2 + 20.

Olegator [25]

Answer:

$\large\boxed{a)\ 21,\ 24,\ 29}\\\boxed{b)\ \text{five terms}}$

Step-by-step explanation:

$a_n=n^2+20\\\\a)\\\\\text{Substitute}\ n=1,\ n=2\ \text{and}\ n=3\ \text{to the }\ a_n:\\\\a_1=1^2+20=1+20=21\\\\a_2=2^2+20=4+20=24\\\\a_3=3^2+20=9+20=29$

$b)\\\\\text{You have to solve the inequality:}\\\\n^2+20$

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3 years ago

A convenience store sells a coffee mug that comes

madreJ [45]

Answer:

The cost of the mug is of $6.50.

Step-by-step explanation:

The cost of the mug and r refills is given by the following equation:

$C(r) = 2.3r + 6.5$

Cost of the mug:

The cost of the mug is found when no refills are bought, that is, C when $r = 0$ , which is $C(0)$

$C(0) = 2.3*0 + 6.5 = 6.5$

The cost of the mug is of $6.50.

7 0

3 years ago

Explain how two amounts of change can be the same but the percentage of change can be different

lys-0071 [83]

The change from 10 to 11 or from 100 to 101 is 1 in each case.

In the first case, the percentage of change is 1/10 = 10%.

In the second case, the percentage of change is 1/100 = 1%.

The percentages of change are different because the bases from which the change is measure are different.

8 0

3 years ago

If Steve throws the football 50 m in three seconds what is the average speed of the football

AVprozaik [17]

The average speed is 16.66 per second.

5 0

4 years ago