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3 years ago

What is the slope of the line y=5-4x ?Show your work

Mathematics

2 answers:

garri49 [273]3 years ago

5 0

Answer:

-4

Step-by-step explanation:

The equation is in slope-intercept format, y=mx+b. The coefficient in front of the x is the slope as represented by the letter m.

katrin2010 [14]3 years ago

4 0

Answer:

Slope = -4

Step-by-step explanation:

The slope can be identified by looking at the coefficient next to the variable, x. In this instance, the coefficient is -4. Therefore, the slope is -4.

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The sides of a triangle have lengths of x, x + 5, and 25. If the longest side is 25, which of the following values of x would ma

Amiraneli [1.4K]

In a right angle, the sum of the squares of the two shorter sides is equal to the square of the longest side.
Here, the longest side is 25, the shorter sides are x and x+5.

$x^2+(x+5)^2=25^2 \\
x^2+x^2+10x+25=625 \\
2x^2+10x+25=625 \ \ \ |-625 \\
2x^2+10x-600=0 \ \ \ |\div 2 \\
x^2+5x-300=0 \\
x^2+20x-15x-300=0 \\
x(x+20)-15(x+20)=0 \\
(x-15)(x+20)=0 \\
x-15=0 \ \lor \ x+20=0 \\
x=15 \ \lor \ x=-20
$

The length of a side must be a positive number, so x=15.
The answer is C.

6 0

4 years ago

What a ratio of 4 days to 36 hours

klemol [59]

Answer:

4:36

24 x 4:36

96:36

8:4

1day = 24 hours

Step-by-step explanation:

7 0

3 years ago

A new book is being planned. It will have 24 pages of introduction. Then it will have c 12-page chapters and 48 more pages at th

m_a_m_a [10]

Answer:

Let the number of pages be y and the number of chapters be x, then y = 24 + 12x + 48 = 12x + 72

y = 12x + 72

If the book has 25 chapters, the number of pages will be y = 12(25) + 72 = 300 + 72 = 37 pages.

Step-by-step explanation

7 0

3 years ago

A product had its price reduced by 18%. Its new price is<br>£4.92. What is its original price?

Degger [83]

Answer: £5.10

Step-by-step explanation:

x -18% = 4.92

x = 4.92+.18

x = 5.10

4 0

3 years ago

Read 2 more answers

If you invest $2300 in an account for 5 years, what interest rate would it take to reach $4000?

lubasha [3.4K]

Answer:

Step-by-step explanation:

8 0

4 years ago