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Feliz [49]
3 years ago
7

Evaluate the expression for x = 4, y=-2, z= -3. 2² + 8zy - y²

Mathematics
2 answers:
Nikitich [7]3 years ago
8 0

the answer is 53 I'm pretty sure

andrew11 [14]3 years ago
3 0

Answer:

Pretty sure its 53

Step-by-step explanation:

9+48-4

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Lisa, an experience shipping clerk, can fill a certain order in 10 hours. Bill, a new clerk, needs 13 hours to do the same job.
Lelu [443]
I think 11 hours and 30 minutes
7 0
3 years ago
Ppppplllssss heeellppppppppppppllllpllklgfgtfchgrrdgvcfyrf
zubka84 [21]

Answer:

Equation: 3x - 11 = 85

Solution: x = 32

Step-by-step explanation:

3x - 11 = 85

You will have to do the opposite to the equation shown on the screen.

3x = 96 (85 + 11)

x = 32 (96 / 3)

3 0
1 year ago
Mark records his science scores in each monthly assessment over a period of 5 months. In the first assessment he scores 76%. In
Trava [24]

This is the complete question:

Mark records his science scores in each monthly assessment over a period of 5 months. In the first assessment he scores 76%. In the second assessment he scores 73%. After that, his scores keep increasing by 2% in every assessment.  Assume that x represents the number of assessments since he starts recording and y represents the scores in each assessment, which of the following describes the situation?

a. a relation only b.

b. neither a function nor a relation

c. a function only

d. both a relation and a function

Answer:

  • <u><em>d. both a relation and a function</em></u>

Step-by-step explanation:

<em>A relation</em> is any statement, either verbal or mathematical, that connects, interrelates or associates, two or more elements (objects, persons, variables).

The text describes a situation where the scores in the assesments are related to the number of statements since Mark starts recording, hence this is a relation.

<h2>Is this relation a function or not?</h2>

In order for a relation be a function, the association has to be unambiguos. This means that for a given input only one output can exist. If an input can have two or more outputs, then you can not determine which is the output for that input. This is what defines whether a relation is a function or not.

In the situation described in the text, x is the input, i.e. the number of assessments since Mark starts recording the scores. Definetely, the number of assessment is not repeated: there is only one first assessment, only one second assessment, only one third assessment, ... the number of assessment cannot not get repeated. Of course, if the input is not repeated, there is only one output associated to the input (each assessment has just one associated score)  and the relation is a function.

3 0
3 years ago
Which is bigger 40% of 120 or 1/4 of 200
Anvisha [2.4K]
40% of 120 is 48 1/4 of 200 is 50 1/4 of 200 is bigger.
3 0
3 years ago
What is another way to write the equation 7/8x3/4=-6
prohojiy [21]

Another way to write the equation is 7x + 54 = 0

<h3>How to rewrite the equation</h3>

Given the equation;

\frac{7}{8}x + \frac{3}{4}  = -6

Find the LCM on the left side, which is 8

\frac{7x + 6}{8}  = -6

Cross multiply

7x + 6 = -6 × 8

7x + 6 = -48

Collect like terms

7x = -48 - 6

7x = -54

Take all to one side

7x + 54 = 0

Thus, another way to write the equation is 7x + 54 = 0

Learn more about simplification here:

brainly.com/question/723406

#SPJ1

7 0
2 years ago
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