All categories

2 years ago

One of the roots of the equation 27x^2 + bx + 8 =0 is known to be the square of the other. Find b

Mathematics

1 answer:

Scilla [17]2 years ago

3 0

Answer: Your going to have to correct your placing of your numbers.

You might be interested in

Help asap please ----------------

melomori [17]

Answer:

-1 Not in domain

0 In domain

1 In domain

Step-by-step explanation:

The domain for the square root function is all positive numbers including (0). The domain is the set of real numbers which when substituted into the function will produce a real result. While one can substitute a negative number into the square root function and get a result, however, the result will be imaginary. Therefore, the domain for the square root function is all positive numbers. It can simply be expressed with the following inequality:

$x\geq0$

Therefore, one can state the following about the given numbers. Evaluate if the number is greater than or equal to zero, if it is, then it is a part of the domain;

-1 => less than zero; Not in domain

0 => equal to zero; In domain

1 => greater than zero: In domain

4 0

2 years ago

What would a 44% decrease of 13 be?

TEA [102]

Answer:

Step-by-step explanation:

p% = p 'out of one hundred',

p% is read p 'percent',

p% = p/100 = p ÷ 100.

44% = 44/100 = 44 ÷ 100 = 0.44.

100% = 100/100 = 100 ÷ 100 = 1.

Decrease number by 44% of its value.

Percentage decrease = 44% × 13

New value = 13 - Percentage decrease

6 0

2 years ago

Read 2 more answers

Pls help brainliest to the first answer

Tems11 [23]

Answer:

A is the correct answer

Step-by-step explanation:

4 0

2 years ago

A playground is being designed where children can interact with their friends in certain combinations. If there is 1 child, ther

mariarad [96]

<h2>Answer:</h2>

Recursive equation for the pattern followed is given by,

$a_{n}=a_{n-1}+(n-1)^{2}$

<h2>Step-by-step explanation:</h2>

In the question,

The number of interaction for 1 child = 0

Number of interactions for 2 children = 1

Number of interactions for 3 children = 5

Number of interaction for 4 children = 14

So,

We need to find out the pattern for the recursive equation for the given conditions.

So,

We see that,

$a_{1}=0\\a_{2}=1\\a_{3}=5\\a_{4}=14\\$

Therefore, on checking, we observe that,

$a_{n}=a_{n-1}+(n-1)^{2}$

On checking the equation at the given values of 'n' of, 1, 2, 3 and 4.

At,

n = 1

$a_{n}=a_{n-1}+(n-1)^{2}\\a_{1}=a_{1-1}+(1-1)^{2}\\a_{1}=0+0=0\\a_{1}=0$

which is true.

At,

n = 2

$a_{n}=a_{n-1}+(n-1)^{2}\\a_{2}=a_{2-1}+(2-1)^{2}\\a_{2}=a_{1}+1\\a_{2}=1$

Which is also true.

At,

n = 3

$a_{n}=a_{n-1}+(n-1)^{2}\\a_{3}=a_{3-1}+(3-1)^{2}\\a_{3}=a_{2}+4\\a_{3}=5$

Which is true.

At,

n = 4

$a_{n}=a_{n-1}+(n-1)^{2}\\a_{4}=a_{4-1}+(4-1)^{2}\\a_{4}=a_{3}+9\\a_{4}=14$

This is also true at the given value of 'n'.

Therefore, the recursive equation for the pattern followed is given by,

$a_{n}=a_{n-1}+(n-1)^{2}$

3 0

2 years ago

Can someone help me with with my home work i have 45 questions

Shalnov [3]

The answer on the picture is right

3 0

2 years ago

Read 2 more answers

One of the roots of the equation 27x^2 + bx + 8 =0 is known to be the square of the other. Find b​

One of the roots of the equation 27x^2 + bx + 8 =0 is known to be the square of the other. Find b