2 years ago

What does decreasing interval mean?

1 answer:

6 0

Answer:

The section of a parabola that shows a falling curve with decrease in the y values of the graph is known as the decreasing interval of the quadratic function

Step-by-step explanation:

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Find the product: (x+9)(x-9) a 18 b. -81 C. - 18 d. x-64

Lilit [14]

Answer:

x^2 -81

Step-by-step explanation:

(x+9)(x-9)

FOIL

first x*x = x^2

outer -9x

inner 9x

last -9*9 = -81

Add them together

x^2 -9x+9x -81

Combine like terms

x^2 -81

5 0

3 years ago

Read 2 more answers

How do u express a ratio as a decimal

Viktor [21]

Perform the indicated division ... divide the numerator by the denominator.
The quotient is the decimal form of the ratio.

6 0

3 years ago

Find the inverse function of y=(x-2)^2 + 3. please show steps

Lunna [17]

Answer:

$f^{-1}(x)=2\pm\sqrt{x-3}$

Step-by-step explanation:

we have

$y=(x-2)^2+3$

step 1

Exchange the variables (x for y and y for x)

$x=(y-2)^2+3$

Isolate the variable y

step 2

$x=(y-2)^2+3$

subtract 3 both sides

$(y-2)^2=x-3$

step 3

square root both sides

$y-2=\pm\sqrt{x-3}$

step 4

Adds 2 both sides

$y=2\pm\sqrt{x-3}$

step 5

Let

$f^{-1}(x)=y$

$f^{-1}(x)=2\pm\sqrt{x-3}$

8 0

3 years ago

the table shows cara's scores for 5 rounds of golf. If cara wants an average score of 73, what should her scores be on 6th round

dlinn [17]

Answer:

Step-by-step explanation:

80+69+78+73+75+63= 438

438/6 = 73

Hope this helps you! :)

4 0

3 years ago

Find the volume of a sphere with a radius of 6ft. Round to the nearst whole number A)151ft^3 B)678ft^3 C)904ft^3 D)2,713ft^3

Tcecarenko [31]

Answer:

Option C. The volume of the sphere is equal to $904\ ft^{3}$

Step-by-step explanation:

we know that

The Volume of a sphere is equal to

$V=\frac{4}{3}\pi r^{3}$

In this problem

we have

$r=6\ ft$

assume

$\pi =3.14$

substitute

$V=\frac{4}{3}\pi (6^{3})=904\ ft^{3}$

7 0

3 years ago