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3 years ago

Evaluate the expression (2x + y) - z when x= 3, y = 4, z =5

Mathematics

1 answer:

Lapatulllka [165]3 years ago

5 0

Answer:

Step-by-step explanation:

(2x + y) - z

Let x=3 y=4 and z=5

2*3 +4 -5

Multiply and divide first

6 +4 -5

Then add and subtract

10-5

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mr Goodwill [35]

Question-

To build a door frame, Anthony needs 2 pieces of lumber that each measure 98 1/4 inches and one piece of lumber that measure 39 1/2 inches. What is the total length of lumber that Anthony needs to build the frame?

Answer:

137 3/4 inches

Step-by-step explanation:

98 1/4 + 39 1/2

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98 1/4 + 39 2/4

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Determine the first four terms of the sequence in which the nth term is

Licemer1 [7]

<u>Answer:</u>

The correct answer option is: $\frac{1}{3} ,\frac{1}{4} ,\frac{1}{5} ,\frac{1}{6}$ .

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

We know that the $nth$ term $a_n$ for an arithmetic sequence is given by:

$a_n=\frac{(n+1)!}{(n+2)!}$

where $n$ is the number of the position of the term.

We are supposed to find the first four terms of the sequence so we will substitute the values of $n$ from 1 to 4 in the given formula to get:

1st term:

$a_1=\frac{(1+1)!}{(1+2)!}=\frac{1}{3}$

2nd term:

$a_2=\frac{(2+1)!}{(2+2)!}=\frac{1}{4}$

3rd term:

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4th term:

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4 years ago

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Evaluate the expression (2x + y) - z when x= 3, y = 4, z =5​

Evaluate the expression (2x + y) - z when x= 3, y = 4, z =5