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3 years ago

Can some please please please please please help me with these problems I don’t even know this please help me

Mathematics

1 answer:

julsineya [31]3 years ago

4 0

14. It basically wants you to find how many 1/4 can fit into two. 1/4 x 8 =2. 8 servings can be made from 2 cups

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Write a rule for the nth term of the geometric sequence if r = 1/4 and a3 = 2.

GarryVolchara [31]

Answer:

$a_{n} = 32(\frac{1}{4})^{n-1}$

Step-by-step explanation:

The nth term of a geometric sequence is given by the following equation.

$a_{n+1} = ra_{n}$

In which r is the common ratio.

This can be expanded for the nth term in the following way:

$a_{n} = a_{1}r^{n-1}$

In which $a_{1}$ is the first term.

This means that for example:

$a_{3} = a_{1}r^{3-1}$

$a_{3} = a_{1}r^{2}$

$2 = a_{1}(\frac{1}{4})^{2}$

$2 = \frac{a_{1}}{16}$

$a_{1} = 32$

Then

$a_{n} = 32(\frac{1}{4})^{n-1}$

4 0

3 years ago

Which statement about 4x2 + 19x – 5 is true?

Thepotemich [5.8K]

Answer:

(x+5)

Step-by-step explanation:

$=>4x^2+19x-5\\=>4x^2+20x-x-5\\=>4x(x+5)-1(x+5)\\=>(x+5)(4x-1)$

Here, (x + 5) matches your answer choices

3 0

2 years ago

Read 2 more answers

I am weighed on scales which have a 10% error, that is, the scales show me 10% heavier than my real weight. If I actually weigh

stiks02 [169]

Remember you said the scale shows you 10% heavier.

So that's an increase of 10%

So value = 10% + 100% = 110%

So scale would show 110% of 82

110% of 82

= (110/100) * 82

= 1.1 * 82

= 90.2

OR

We can simply find 10% of 82 and add it to the original 82.

10% of 82

(10/100) * 82

0.1 * 82 = 8.2

8.2 + 82 = 90.2 Same answer as before.

So scale shows 90.2 kg.

4 0

2 years ago

Read 2 more answers

Which which value is not located between square root 9/3 2n

tangare [24]

3 and -3 are said to be the square roots of 9. A square root is written with a radical symbol √ and the number or expression inside the radical symbol, below denoted a, is called the radicand. ... Negative numbers don't have real square roots since a square is either positive or 0.

7 0

3 years ago

A florist has to choose four different types of flowers to include in a bouquet. In how many ways can the florist do this, if th

Nat2105 [25]

Answer:

Step-by-step explanation:

Given:

Type of Flowers = 5

To choose = 4

Required

Number of ways 4 can be chosen

The first flower can be chosen in 5 ways