3 years ago

A= f forr 2 = o Need help with that plz help me

Mathematics

1 answer:

spayn [35]3 years ago

5 0

Answer:

r = 2a + k

Step-by-step explanation:

Hope this helps :D

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If the relative frequency of getting a 6 on a dice is 0.3, how many 6's would you expect to get in 400 throws of the dice?

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2 years ago

What is BC ?

gtnhenbr [62]

BC = 18

AB = AC, hence

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3x - 4 = 11 ( add 4 to both sides )

3x = 15 ( divide both sides by 3 )

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2 years ago

find the number of terms in an AP given that its first and last terms are 13 and - 23 respectively and that its common differenc

Leokris [45]

Answer:

<u>There are 17 terms in the sequence</u>

Step-by-step explanation:

<u>Arithmetic Sequence </u>

An arithmetic sequence is a list of numbers with a definite pattern by which each term is calculated by adding or subtracting a constant number called common difference to the previous term. If n is the number of the term, then:

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

Where an is the nth term, a1 is the first term, and r is the common difference.

In the problem at hand, we are given the first term a1=13, the last term an=-23, and the common difference r=-2 1/4. Let's solve the equation for n:

$\displaystyle n=1+\frac{a_n-a_1}{r}$

We need to express r as an improper or proper fraction:

$\displaystyle r=-2\frac{1}{4}=-2-\frac{1}{4}=-\frac{9}{4}$

Substituting:

$\displaystyle n=1+\frac{-23-13}{-\frac{9}{4}}$

$\displaystyle n=1+\frac{-36}{-\frac{9}{4}}$

$\displaystyle n=1+36*\frac{4}{9}=17$

n=17

There are 17 terms in the sequence

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James was painting the fence around his farm. He already painted 35% of the fence which was equal to 1,050 feet.

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have you ask your teacher yet?

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