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2 years ago

Evaluate the expression, if x = 9, y = 14, and z = 6. x• y - z^2

Mathematics

2 answers:

alex41 [277]2 years ago

7 0

The answer is 90. Hope this helps

vovikov84 [41]2 years ago

7 0

Answer:

Step-by-step explanation:

Given:

x = 9
y = 14
z = 6

x·y - z² = (9 x 14) - 6²

= 126 - (6 x 6)

= 126 - 36

= 90

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A shopkeeper sold 12 bags on the first day. The number became four times

dybincka [34]

The total number of the bags sold by the shopkeeper will be 65532.

<h3>What is number series?</h3>

The sequence formed by using the numbers is termed as the number series.So in this question from day one to day seven each day the sold items are multiplied by 4.

So the mathematical expression will be given as:

$=(12\times 4^0)+(12\times 4^1)+(12\times 4^2)+(12\times 4^3)+(12\times 4^4)+(12\times 4^5)+(12\times 4^6)$

$=12+48+192+768+3072+12288+49152\\\\=65532$

Hence the total number of the bags sold by the shopkeeper will be 65532.

To know more about number series follow

brainly.com/question/6561461

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3 0

2 years ago

Determine if the relationship is a function & explain why and why not.

SCORPION-xisa [38]

It is not a function because there can't be two of the same number on the x-axis.

7 0

3 years ago

What is an equation of the line that passes through the point (2,−6) and is parallel to the line x−2y=8?

lorasvet [3.4K]

Answer:

y = x/2 - 7

Step-by-step explanation:

First, we need to find the slope of the given equation: x - 2y = 8

Subtract x from both sides

x - 2y = 8

- x - x

-2y = 8 - x

Divide both sides by -2

-2y/-2 = (8 - x)/-2

y = -4 + x/2

The slope of this equation is 1/2

So the equation of our parallel equation is y = x/2 + b

We have to find b, so plug in the given coordinates

-6 = 2/2 + b

-6 = 1 + b

Subtract 1 from both sides

-6 = 1 + b

- 1 - 1

b = -7

Plug it back into the original equation

y = x/2 - 7

6 0

2 years ago

a study indicated that the citizens of Morristown waste and 5840 gallons of water last year this year they wasted 15% more than

joja [24]

<u>Answer-</u>

<em>The total amount of water wasted this year is 6716 gallons.</em>

<u>Solution-</u>

A study indicated that the citizens of Morris-town wasted 5840 gallons of water last year.

This year they wasted 15% more than that amount they wasted previous year.

15% of 5840 is,

$5840\times \frac{15}{100}=876$

The total amount of water wasted this year =

The amount of water wasted previous year + 15% more of the amount of that

= 5840 + 876

= 6716 gallons

Therefore, the total amount of water wasted this year is 6716 gallons

8 0

3 years ago

Read 2 more answers

What is the answer to 7+6y >19 ?

goldenfox [79]

Answer:

$y>2$

$\{y\in \mathbb{R}|y>2\}$

The interval notation is: $(2, \infty)$

Step-by-step explanation:

$7+6y>19$

$6y>12$

$y>2$

4 0

3 years ago