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2 years ago

What is the nth term rule of the linear sequence below? 27, 25, 23, 21, 19, ...

Mathematics

1 answer:

Yuliya22 [10]2 years ago

6 0

Answer:

Step-by-step explanation:

Comment

This is an arithmetic series. It has the following givens.

a = 27 The first term

d = - 2 The difference between one term and the one behind it.

n = quite small

Tn = a + (n - 1)*d

tn = 27 - 2n + 2

tn = 29 - 2n

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5. Melissa bought a pencil for $0.34, an eraser

Verdich [7]

Answer: 1.55 (1.54 is the real price she bought it at so this is a reasonable estimation)

Step-by-step explanation: You can estimate the 98 cents at 1 dollar and the 22 cents at 20 cents and the 34 cents at 35 cents then add them all together: 0.20+0.35+1=1.55

If you need any further help or instruction let me know!

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3 years ago

Read 2 more answers

Change this radical to an algebraic expression with fractional exponents.

borishaifa [10]

Answer:

The exponent of y is 1

Step-by-step explanation:

Given

$\sqrt{y^2$

Required

Convert to fractional exponent

Here, we simply apply the following law of indices:

$\sqrt{x^m} = x^{\frac{m}{2}}$

So, the expression becomes:

$\sqrt{y^2} = y^{\frac{2}{2}}$

$\sqrt{y^2} = y^1$

$\sqrt{y^2} = y$

<em>From the above expression, the exponent of y is 1</em>

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3 years ago

Miss Cleaver mixed 1.24 liters of red paint with three times as much blue pair to make purple paint. She pours the equally into

Maurinko [17]

It would be 3.72 L because if you have three times the amount of 1.24 L then you would multiply 1.24 L times 3 and the answer is 3.72 L

3 0

3 years ago

Joshua is making spaghetti and meatballs for dinner for his friends. Joshua makes 30 meatballs. If Joshua wants 5 meatballs on e

Scilla [17]

Answer:

$x = 6$

Step-by-step explanation:

Given

Let y represent the number of meatballs in total and x represents the number of plates.

$y = 30$

$Rate = 5$ per plate

Required

Determine the value of x

To solve for x, we make use of the following expression.

$y = Rate * x$

Substitute values for y and Rate

$30 = 5 * x$

$30 = 5 x$

Divide through by 5

$30/5 = 5 x/5$

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<em>Hence, number of plates is 6</em>

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3 years ago

What is the determinant of matrix |-8|?

ivanzaharov [21]

Given:

The matrix is $[-8]$ .

To find:

The determinant of given matrix, i.e, $|-8|$ .

Solution:

If a matrix is A of order $1\times 1$ , then the value of the determinant of that matrix is equal to the element of that matrix.

For example: Let A be the matrix of order $1\times 1$ .

$A=[a]$

Then,

$|A|=a$

The given matrix is $[-8]$ . So, the determinant of given matrix, i.e, $|-8|$ , is

$|-8|=-8$

Therefore, the value of determinant of given matrix is -8.

7 0

3 years ago