4 years ago

Consider the function f(x) = 10x2 + 20. – 11 What is the vertex of the function

Mathematics

1 answer:

kogti [31]4 years ago

5 0

Answer:

Step-by-step explanation:

hello :

f(x) = 10x²+20x-11 Completing The Square

f(x) = 10(x²+2x)-11 = 10((x²+2x+1)-1)-11

f(x) =10((x+1)²-1)-11

f(x)= 10(x+1)²-21...vertex form when the vertex is : (-1 ; -21)

You might be interested in

Need help for 16) and 19) Solve each equation and check. Show all work please

Paladinen [302]

Step-by-step explanation:

You said the other one would be the last haha just kidding I'm glad to help.

16. $\frac{k}{2}=(-5)^2$

First, get rid of that parenthesis.

$\frac{k}{2}=25$

Now multiply both sides by 2 so that you can isolate k

$2(\frac{k}{2})=25*2$

$k=50$

19. $\frac{r}{3}=\frac{121}{11}$

This is a pretty easy one. If you didn't know, 121/11 is actually 11 :)

$\frac{r}{3}=11$

Simply multiply by 3 to isolate r :)

$3(\frac{r}{3})=11*3$

$r=33$

4 0

3 years ago

Read 2 more answers

A bag contains 8 red balls and 4 white balls. Two balls are drawn without replacement. (Enter your probabilities as fractions.)

RoseWind [281]

Answer:

total marbles;12

after drawing red total counts are 7 red and 4 white 11 in total

probabilities are 4/11

6 0

3 years ago

How much water consumed by Aguilar family as shown in the meter reading

Sati [7]

Answer:

?????????????????

Step-by-step explanation:

????????

6 0

3 years ago

Graph the function f(x) = 2√x +3.

Nikolay [14]

The graph is shown in the attached image.

8 0

2 years ago

What is the solution for f(n)=1.25n+6.25; 25???<br> Please answer this quickly

gogolik [260]

It would be f= 1.25n+6.25/n

8 0

4 years ago