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3 years ago

8z+12+3

Mathematics

1 answer:

yarga [219]3 years ago

7 0

Answer:

8z+15

Step-by-step explanation:

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A student simplified the expression 62122 as 12 Do you agree with this student

zhenek [66]

No because 62122 can not be simplified

6 0

3 years ago

Help me please I am confused with the question about the 3 digit number ?

vazorg [7]

Answer:

900

Step-by-step explanation:

3-digit natural numbers are whole numbers that range from 100 to 999 (3-digit because there are three numbers)

- 999 whole numbers from 1 to 999 (counting from 1, 2, 3, 4...897, 898, 899)

- 1 to 99 are 2-digit numbers, so you do not count them

999 - 99 = 900

there are 900 3-digit natural numbers!

comment or message me if you are still confused!

3 0

3 years ago

A recursive rule for an arithmetic sequence is a1=4;an=an−1−3 . What is the explicit rule for this sequence? Enter your answer i

Westkost [7]

Answer:

The explicit rule for the arithmetic sequence is given by:

$a_n = a_1+(n-1)d$ ......[1]

where,

$a_1$ is the first term

n is the number of terms and

d is the common difference for two consecutive terms.

As per the statement:

A recursive rule for an arithmetic sequence is:

$a_1 = 4$

$a_n = a_{n-1}-3$

The recursive formula for the arithmetic sequence is given by:

$a_n = a_{n-1}+d$

then;

On comparing we get;

d = -3

Substitute the given values in [1] we have;

$a_n = 4+(n-1)(-3)$

⇒ $a_n = 4 -3n+3 = 7-3n$

Therefore, the explicit rule for this sequence is, $a_n = 7 -3n$

5 0

3 years ago

What is the solution to the following equation?

Orlov [11]

Answer:

Explanation:

1 0 − 6 0 + 2 1 = 2 + 4 1

1 0 − 3 9 = 2 + 4 1

1 0 − 3 9 + 3 9 = 2 + 4 1 + 3 9

x = 10

6 0

3 years ago

Read 2 more answers

Solve for u 8 = u - 5

gtnhenbr [62]

Answer: $u=13$

Step-by-step explanation:

Flip the equation:

$u-5=8$

Add 5 to both sides:

$u-5+5=8+5$

Get your answer:

$u=13$

7 0

3 years ago