HELP ME ASAP WITH 8! PLS!! I beg u..

Mathematics

1 answer:

lakkis [162]3 years ago

7 0

7. x=3 is the midpoint between the roots. The other root is x = 2*3 -(-5) = 11.

8a) f(x) = (x +3)^2 -49. The vertex is (-3, -49). The roots are -10, 4.

8b) y = (x+4)^2 -1. The vertex is (-4, -1). The roots are -5, -3.

8c) f(x) = 2(x +3)^2 -34. The vertex is (-3, -34). The roots are -3±√17.

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A rabbit hops 8 meters in one second. After 7 seconds, the rabbit has hopped 20 meters. What is the rabbit's average rate of cha

Margarita [4]

Answer:

Average Rate of change = 2

Step-by-step explanation:

Given - A rabbit hops 8 meters in one second. After 7 seconds, the rabbit has hopped 20 meters.

To find - What is the rabbit's average rate of change?

Formula used -

Average rate of change of a function f(x) in an interval [a, b] is $\frac{f(b) - f(a)}{b - a}$

Proof -

Given that,

In 1 second - Rabbit hoops 8 meters

In 7 seconds - Rabbit hoops 20 meters

So,

Average Rate of change = $\frac{20 - 8}{7 - 1}$

= $\frac{12}{6}$

= 2

⇒Average Rate of change = 2

7 0

3 years ago

Please help image down below

Anettt [7]

Answer:

24 divided by 6 is 4

240 divided by 6 is 40

2,400 divided by 6 is 400

24,000 divided by 6 is 4000

4 0

3 years ago

Who can finish this for me

Paladinen [302]

Answer:

Step-by-step explanation:

$(5 - 5 {x}^{4} - {x}^{3} ) - (6 {x}^{3} - 4 {x}^{4} - 3)$

Remove unnecessary parentheses

$5 - 5 {x}^{4} - {x}^{3} - (6 {x}^{3} - 4 {x}^{4} - 3)$

When there is a (-) in front of an expression in parentheses, change the sign of each term in the expression