What is the x-value of the vertex of f(x) = -x2 + 9x - 11 ?

Answers

Answer 1

Answer:

I believe it would be 9/2 !

Step-by-step explanation:


Related Questions

help please thank you​

Answers

Answer:

the second choice :)

Step-by-step explanation:

you can convert both denominators to 20 to enable you to add the two fractions, 4/5 times 4 is 16/20 and 2/4 times 5 is 10/20. 16/20+10/20=26/20

hope this helps!

What is 13x4=nx26 and tell me the answer

Answers

Answer:

There are a couple different solutions to your equation:

[tex]x=0[/tex]

[tex]x=\sqrt[22]{\frac{13}{n}}[/tex]

[tex]x=-\sqrt[22]{\frac{13}{n}}[/tex]

[tex]\:n\ne \:0[/tex]


A construction company needs to remove 2 5/6 tons of dirt from a construction site. They can remove 3/10 tons of dirt each hour. What is the total amount of hours it will take to remove the dirt?

Answers

Answer:

Here is a generic way to set up this type of algebra problem.

d = total amount of dirt at the site (tons)

r = rate or removal (tons/hr)

t = time it takes to remove all of the dirt (hr)

d = rt

The total amount of dirt equals the removal rate times hours spent removing all the dirt.

Since you want to solve for t, divide both sides by r

t = d/r

Which graph represents y = –2x?

Answers

Answer:

B, the second one down on the first page

Step-by-step explanation:

hope this helps! :D

brainliest is immensely appreciated!! <3

The question is in the picture​

Answers

Answer:

8

Step-by-step explanation:

The answer is 8 units

what is rational exponent of -(49)1/2?

Answers

[tex] {7}^{2( \frac{1}{2}) } \\ [/tex]

Cancel the common factor of 2.

[tex] {7}^{1} [/tex]

Evaluate the exponent[tex] \:= 7[/tex]

The difference of p and 4

Answers

Difference Means subtraction

p-4

Or

4-p

There is a unlike term [p] and 4.So we can't subtract.We can only subtract when there is p and 4p(4p-p).Answer would be 3 p.

PLEASE HELP ILL GIVE5 STARS HELP ASAP

Answers

Answer:

H+2

Step-by-step explanation:

Please mark brainliest

(5z+17.6)-(-3z+12.2)

Answers

1 - 2z + 5.4 hope that helps !

A man earns $9.99 for each of the first 36 hours he works in one week and $14.99 in overtime pay for each
additional hour he works in the same week. How much money will he make if he works 46 hours in one week?

Answers

Answer:

459.54

Step-by-step explanation:

46(9.99)

=459.54

Answer:

$159.89

Step-by-step explanation:

36 hours + 10 hours = 46

14.99 * 10 = 149.9

(36 hours) $9.99 + (overtime pay) $149.9 = (Total money) $159.89

$9.99 + $149.9 = $159.89

$159.89

Factorise fully each of the following:
(a)
2ab + 3cd - cb - bad
-
-

Answers

Answer:

urs 6 2ab ytdguhdd bad wuy

Step-by-step explanation:

blank

Standard form question

Answers

Answer:

 1.64×10^7 km

Step-by-step explanation:

The Pythagorean theorem can be used to find the hypotenuse of this right triangle.

  QR² = PQ² +PR²

Expressing the given distances as multiples of 10^7 km, we have ...

  QR² = 0.36² +1.6² = 0.1296 +2.5600 = 2.6896

  QR = √2.6896 = 1.64

The shortest distance between planets Q and R is 1.64×10^7 km.

Need help fast worth 20 points
Select the correct answer.
Which set of absolute values is compared correctly
OA. 1-10] < |-5| < |17| < 151
OB. 1-5| > |-10| > |-12| > |17||
OC. |10| > |-15] > [-5| > 12||
OD. |-101 < [12] < |-15| < |17||

Answers

Answer:

i think its b.

Step-by-step explanation:

correct me if im wrong. and it was worth 10 points instead of 20.

A. y = 2x
B. y = x ÷ 2
C. y = x – 1
D. y = x + 1

Answers

Answer:

D) y = x + 1

Step-by-step explanation:

D is the answer because the slope is 1 and the y-intercept is 1

The points K(5,-5)(5,−5), L(9,-5)(9,−5), and M(7,3)(7,3) form a triangle. Plot the points then click the "Graph Triangle" button.

Answers

This is the triangle formed by the given points

Graph the function
f(x) = 3/5x - 5

Answers

Step-by-step explanation:

okay, plot a point at (0,-5) then count 3 units up and 5 units to the right and put a point there

connect the points with a straight line

add arrows to each end of the line :)

Find the amount that results from a $900 investment invested at 7% interest,
compounded continuously, after 4 years.

Answers

Omg I’m sooooo sooo sorry I don’t know how to calculate I tried soo sorry

(2,170), (5,365) slope

Answers

Answer:

To find the slope given two points, use the slope formula. The slope formula is Y2-Y1/X2-X1. Substitute in the given points and solve.

365-170/5-2

195/3

65

The slope of the two points is 65.

Hope this helps! :)

957.75 + 83.86 the sum is

Answers

the sum for this answer would be 1,041.61

Answer:

1,041.61

Simply stack the numbers (lining up the decimals) and add right to left.

someone said it is D CAN SOMEONE TELL ME THE RIGHT ONE

Answers

It is 1.16 ML

You welcome

How do you rationalize the denominator of a radical expression that has two terms in the denominator? (For example, the denominator is 1+√5.)

Answers

Answer:

A / (1 +√5) = A (1 - √5) / (1 - 5) = -A (1 - √5) / 4

Multiply numerator and denominator by (1 - √5)

Find the sum of the first 48 terms of the following series, to the nearest integer. 7,11,15

Answers

Answer:

7, 11, 15, 19, 23, 27, 31... and keep going until you have an answer.

Step-by-step explanation:

Just keep adding 4 until you have all the 48 terms you need.

On a​ team, 4 girls and 3 boys scored a total of 57 points. The difference between the number of points scored by the 4 girls and the number of points scored by the 3 boys is 15. Each girl scored the same number of points and each boy scored the same number of points. Find the number of points scored by each girl and each boy.

Each girl scored (BLANK) points.

Answers

Answer:

Each girl scores 8 points while each boy scores 4 points

Step-by-step explanation:

Let the number of point scored by the 7 girls and 2 boys be x and y respectively.

Thus, since 7 girls and 2 boys scored a total of 64 points, then;

7x + 2y = 64 - - - (1)

Also, difference between the number of points scored by the 7 girls and the number of points scored by the 2 boys is 48. Thus;

7x - 2y = 48 - - - (2)

Add eq(1) to (eq 2) to get;

14x = 64 + 48

14x = 112

x = 112/14

x = 8

Put 8 for x in eq(1) to get;

7(8) + 2y = 64

56 + 2y = 64

2y = 64 - 56

2y = 8

y = 8/2

y = 4

Thus,each girl scores 8 points while each boy scores 4 points

hope this helps .

Solve each equation for x.
a(x-b)+bx+c=a+b

Answers

Answer:

[tex]x=\frac{ab+a+b-c}{a+b}[/tex]

Step-by-step explanation:

a(x−b)+bx+c=a+b

Step 1: Add ab to both sides.

−ab+ax+bx+c+ab=a+b+ab

ax+bx+c=ab+a+b

Step 2: Add -c to both sides.

ax+bx+c+−c=ab+a+b+−c

ax+bx=ab+a+b−c

Step 3: Factor out variable x.

x(a+b)=ab+a+b−c

Step 4: Divide both sides by a+b.

[tex]\frac{x(a+b)}{a+b} =\frac{ab+a+b-c}{a+b}[/tex]

[tex]x=\frac{ab+a+b-c}{a+b}[/tex]

Hope this helped! :)

Michael has 13 dollars in his wallet. His father gives him his allowance for the week. Now Michael has 18 dollars. How many dollars did Michael's father give him?

Answers

Answer: 5 Dollars

Step-by-step explanation: You only have to substract 13 of 18, the answer of that is 5.

18-13=5
Michaels after give him $5

Solve for x.
х/12=3/2

Answers

X=18 , first you have to rewrite it as fractions then you have to cross multiply the equation , and last divide
I think it’s x=0/-17

Yesterday, there were 100 problems assigned for math homework. Pablo got 60 problems correct and 40 problems incorrect. What percentage did Pablo get correct?

Answers

Answer 60%
I Hope This Helps

Pls help thank you so much

Answers

The ANSWER is C. 3(5x+1)

Convert the decimal or whole number to a percent. 1.15 3/8

Answers

Answer:

11.5% and 3.75%

Step-by-step explanation:

since 1.15 is greater than 1, we assume that its taken out of 10

therefore its percent will be 1.15/10*100=11.5%

as for 3/8 (0.375) its less than 1, so we assume its taken out of 1, therefore 0.375/1*100=3.75%

Tracey paid $150 for an item that was originally priced at $510. What percent of the original price did Tracey pay?

Answers

Answer:

29.4118%

Step-by-step explanation

510 * x = 150

x = .2941176

multiply by 100 to get percent

29.4118

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