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Gnom [1K]
3 years ago
14

5x2-2y when x=2 y=3 what is the best answer

Mathematics
2 answers:
insens350 [35]3 years ago
7 0

Answer:

Step-by-step explanation:

5x^2 - 2y.....x = 2 and y = 3

5(2^2) - 2(3) =

5(4) - 6 =

20 - 6 =

14 <===

Alika [10]3 years ago
5 0

Answer: 14

Step-by-step explanation: 5(2)2-2(3)

5 multiplied by 2 is 10 multiplied by 2 is 20 then -2 multiplied by 3 is -6 so then 20-6=14

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Helpppppppppppppppppp​
UNO [17]

Answer:

<em>2 solutions</em>

Step-by-step explanation:

Given the expression

2m/2m+3 - 2m/2m-3 = 1

Find the LCM of the expression at the left hand side:

2m(2m-3)-2m(2m+3)/(2m+3)(2m-3) = 1

open the bracket

4m²-6m-4m²-6m/(4m²-9) = 1

Cross multiply

4m²-6m-4m²-6m = 4m²  - 9

-12m = 4m²  - 9

4m²  - 9+12m = 0

4m² +12m-9 = 0

<em>Since the resulting equation is a quadratic equation, it will have 2 solutions since the degree of the equation is 2</em>

8 0
2 years ago
10)
Kipish [7]

Answer:

-600

Step-by-step explanation:

The rate of change of a function f(x) in a certain interval (x_1,x_2) is the ratio between the change of the function and the change in the value of x:

r=\frac{f(x_2)-f(x_1)}{x_2-x_1}

The rate of change of a function tells how much the value of the function is changing per change in unit of x: therefore, for a linear function it corresponds to the slope of the line.

In this problem, the function f(x) is equal to the value of the business machine in dollars, while the variable x represents the number of years.

Here we are told that the machine was purchased for

q=\$4500

while its value decreases by $600 each year, so

m=-600\$

This means that the linear function that represents the value of the machine after x years is:

y=4500-600x

Therefore, the rate of change of the function is -600.

3 0
2 years ago
At 7:00 a.m the temperature was 8 C what was the temperature at midnight if the temp was 10 lower?
pantera1 [17]
8-10= -2°C at midnight
8 0
2 years ago
Solve for x in this inequality: -13 &lt; 3x – 7 &lt; 5
Katyanochek1 [597]

-13 < 3x – 7 < 5

Add 7 to all 3 terms;

-6 <3x<12

Divide all 3 terms by 3:

-2<x<4

3 0
3 years ago
A rectangle has two side lengths of 8 inches and two side lengths of 10 inches. What is the area of the rectangle?
alina1380 [7]
The answer is 80. lw = A

10 x 8 = 80
7 0
3 years ago
Read 2 more answers
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