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3 years ago

PLZZZZZ HELP I NEED IT

Mathematics

1 answer:

Lana71 [14]3 years ago

3 0

Answer:

Step-by-step explanation:

Because it's 0 and 0 is nothing

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Determine if the function below is continuous.

marshall27 [118]

Answer:

Step-by-step explanation:

I believe at the point of (1,1) there is a distinct sort of point where it looks like an edge or corner which means that it is not continuous.

Continuous means that there is no abrupt changes (google) and im sure you know this already (im just saying no offence to anyone's intelligence)

6 0

3 years ago

Megan buys 5 boxes of cookies for $3.75 each. What is her change from $20.00? Explain your answer.

fgiga [73]

Answer:

$1.25

Step-by-step explanation:

3.75 x 5 = 18.75

20-18.75 = 1.25

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3 years ago

Read 2 more answers

A field is shaped like the figure shown. What is the area of the field? Use 3.14

uysha [10]

There is no figure, i cant help you sorry

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3 years ago

PLZ HELP! 20 POINTS!

agasfer [191]

Answer:

a) The error is that, the initial value is n=1 NOT n=3

b) The sum is $a_n=a_{n+1}+5=192$

c)The explicit formula is $a_n=5n+3$

The recursive formula is $a_n=a_{n+1}+5$ ,

Step-by-step explanation:

The given arithmetic series is 8 + 13 + ... + 43.

The first term is $a_1=8$ , the common difference is $d=13-8=5$

The nth term is given by:

$a_n=a_1+d(n-1)$

We substitute the values to get:

$a_n=8+5(n-1)\\a_n=8+5n-5\\\\a_n=3+5n$

To find how many terms are in the sequence we solve the equation:

$3+5n=43\\\implies 5n=43-3\\5n=40\\n=8$

The summation notation is $\sum_{n=1}^8(3+5n)$

The error the student made is in the initial value.

It should be n=1 NOT n=3

b) The sum of the arithmetic series is calculated using:

$S_n=\frac{n}{2}(a+l)$

We substitute o get:

$S_8=\frac{8}{2}(5+43)$

$S_8=4(48)$

$S_8=192$

c) The explicit formula we already calculated in a), which is $a_n=3+5n$

The recursive formula is given as:

$a_n=a_{n+1}+d$

We substitute d=5 to get:

$a_n=a_{n+1}+5$

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3 years ago

Which verbal expression best represents the algebraic expression 3n-4n ?

Bingel [31]

Answer:

B. four less than three times a number

8 0

3 years ago