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Ray Of Light [21]
3 years ago
6

I need help!!!PLZ!!!!!

Mathematics
2 answers:
Burka [1]3 years ago
4 0
First, I don’t recommend multiplying by a common denominator as the first step, but in this case, it’s not a big deal.
The point of multiplying by a common denominator is to get rid of the “fractions.” Piper will need to multiply by something that divides 4x + 24, 5, and x^2 - 36 to get rid of all the fractions. Factoring each of those:
4x + 24 = 4(x + 6)
5 = 5
x^2 - 36 = (x + 6)(x - 6)
From this, it’s obvious that the simplest common denominator necessary is 4 * 5 * (x + 6)(x - 6).
Marizza181 [45]3 years ago
3 0

The simplest expression she can use to do this is the LCD

To find it we first need to factor all the denominators

So

(4x+24)=4(x+6)

(5)=5

(x^2 -36) = (x+6)(x-6)

So LCD is 5*4*(x+6)(x-6), which is the simplest

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Please help, basic algebra. Find the value of x
Lesechka [4]

Answer:

X= 53

Random comment:

Hopefully i've helped you good luck.

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4 years ago
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Write a recursive formula and an explicit formula for the following arithmetic sequence: -1,6,13,20,27
Luden [163]

Answer:

Recursive formula is: a_1=-1 ; \ \ a_n=a_{n-1}+7

Explicit formula is: a_n=7n-8

Step-by-step explanation:

We need to find recursive formula and explicit formula for arithmetic sequence -1,6,13,20,27

In the given sequence First term a₁= -1

Common difference d = 7

Finding Recursive Formula

The recursive formula is of type:a_1= First \ term and a_n=a_{n-1}+d

Since the First term a₁ is -1 and common difference d is 7 so, the recursive formula  for given arithmetic sequence will be:

a_1=-1 ; \ \ a_n=a_{n-1}+7

Finding Explicit Formula

The explicit formula is of type: a_n=a_1+(n-1)d

We have

First term a₁= -1

Common difference d = 7

So, explicit formula will be:

a_n=-1+(n-1)7\\a_n=-1+7n-7\\a_n=7n-8

So, explicit formula is: a_n=7n-8

7 0
3 years ago
Alan deposited 300$ into a savings account. At the end of the year, the amount of money in the account had increased to $336. At
motikmotik

Answer:

During the first year he had an annual interest of 12%, and in the second year of 25%

Step-by-step explanation:

To calculate the interest of the first year:

(Initial capital of the first year / final capital of the first year) - 1 = interest of the first year

(300/336) - 1 = 0.12 = 12%

To calculate the interest of the second year:

(Initial capital of the secondyear / final capital of the second year) - 1 = interest of the second year

(336/420) - 1 = 0.25 = 25%

3 0
3 years ago
24=3/4R.<br> Please reply step by step!
beks73 [17]

Answer:

r = 32

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R is the variable that we are trying to find.

24 = 3/4r

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24 / 3/4 = 3/4r / 3/4

32 = r

Therefore, r = 32.

To check, we can plug 32 into the equation.

24 = 3/4 x 32

3/4 x 32 = 24

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Do the sides 11 cm, 20 cm, and 4 cm make a triangle? *
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No, the two sum of the two shorter sides of a triangle must be greater that the longer side.

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