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weeeeeb [17]
3 years ago
12

What is an example of a rate of change

Mathematics
1 answer:
nekit [7.7K]3 years ago
6 0
When you have lines in graphs for ex

Y=2x+7
2x is the rate of change

7 is the instant amt if the x=0 (or the y-intercept)
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Bob can mow 3 lawns in 5 hours. How long would it take it to mow 9 lawns?
olga2289 [7]

Answer:

15 hours

Step-by-step explanation:

9 lawns is 3 times as much as 3 lawns

it will take 3 times as long

3 * 5 hours = 15 hours

3 0
2 years ago
If someone doesn’t help me I will stab myslef
posledela
No don’t stab yourself! But I really hope someone helps you with this, I would but I just don’t understand sorry
7 0
3 years ago
Read 2 more answers
Write the word sentence as an equation. 12 less than a number m equals 20.
PolarNik [594]

Answer

Equation: m - 12 = 20

5 0
3 years ago
If f(x) = -7x + 5x2 + 10, what does f(-2) equal?
aksik [14]

Answer:

f(-2) = 44

Step-by-step explanation:

Hello there! Lets get started solving this function!

For a function, whenever we see f(x) = ... , the function is simply asking the value of the equation at x! So, if replace f(x) with f(-2), we simply substitute x with -2 in the equation! Lets get started!

f(x) = -7x + 5x^{2} + 10\\f(-2) = -7(-2) + 5(-2)^{2} + 10\\f(-2) = 14 + 20 + 10\\f(-2) = 44\\

First, we can write the original function. Next, we substitute in -2 for x. Then, we find our final terms. Finally, we are given that f(-2) = 44.

Hope this helps! Remember, math is fun!

7 0
3 years ago
What is the roots of the quadratic equation? 6x^2+5x-4=0
Rama09 [41]

x = \frac{1}{2} or x = - \frac{4}{3}

consider the factors of the product 6 × - 4 = - 24 which sum to the coefficient of the x- term ( + 5)

the factors are + 8 and - 3 ( split the middle term using these factors

6x² - 3x + 8x - 4 = 0 ( factor by grouping )

3x(2x - 1) + 4(2x - 1 ) ( take out common factor of (2x - 1) )

= (2x - 1)(3x + 4) = 0

equate each factor to zero and solve for x

2x - 1 = 0 ⇒ x = \frac{1}{2}

3x + 4 = 0 ⇒ x = - \frac{4}{3}


4 0
3 years ago
Read 2 more answers
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