find the maximum value of the function
[tex] - 8 + 2x - 4x ^{2} [/tex]

Answers

Answer 1

Answer:

x = [tex]\frac{-b}{2a}[/tex]

Step-by-step explanation:

Start by using P.E.M.D.A.S.

-8 is a 2x is b and -4[tex]x^{2}[/tex] is c.


Related Questions

You pay $45 per month for cable TV. Your friend buys a satelliteTV receiver for $99 and pays $36 per month for satellite TV. Your friend claims that the expenses for a year of satellite TV are less than the expenses for cable TV in a year. Write and solve an equation to determine when you and your friend will have paid the same amount for TV services. Is your friend correct? Explain

Answers

Answer:

yes

Step-by-step explanation:

Yes, he is correct because he pays $36 a month with the satellite TV receiver he payed $135 that month.\But if we do 36x12=432+99=531and the cable tv cost 45x12=540 so even when we add the satellite TV receiver price on his ours is still more expensive

The required month in which both pay the same amount is 11 months. And our friend is right, satellite tv is less expensive than Cable Tv.

Given that,
You pay $45 per month for cable TV. Your friend buys a satellite tv receiver for $99 and pays $36 per month for satellite TV.
To determine when you and your friend will have paid the same amount for TV services.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
let x be the number of months,
According to the question,

For the cost of cable TV = 45x
For satellite TV = 99 + 36x
Now,
99 + 36x = 45x
99 = 45x - 36x
9x = 99
x = 11

Now cost at 12 months,
Cable = 45 * 12 = 540
satellite = 99 + 36 * 12 = 531
So, satellite tv is less expensive than Cable Tv

Thus, the required month in which both pay the same amount is 11 months. And our friend is right.

Learn more about simplification here:
https://brainly.com/question/12501526

#SPJ2


Jorge goes to the store and pays $4.80 for 1.5 pounds of fruit. What is the price per pound of the fruit?

Answers

Answer:

$3.20

Step-by-step explanation:

30 POINTS + BRAINLIEST FIRST CORRECT ANSWER

When 5 and 6 are multiplied by the same factor, how do the ratios compare to the ratio 5:6?
The ratios are equivalent to 5:6.
The ratios are equivalent to 6:5.
The ratios are greater than 5:6, as the factors become greater.
The ratios are greater than 6:5, as the factors become greater.

Answers

Answer:

Aren't they equivalent to 5:6?

Step-by-step explanation:

Your situation models to 5x:6x, and no matter what you put as x, it will amount to the ratio of 5:6. It's basically a big fraction, with 5/6 as the simplfication.

Answer:

Step-by-step explanation:

The easiest way to start this is just to multiply the 5 and the 6 by the same thing and see what happens.

Randomly, I will choose 7 because I think today is the 7th.

5*7

====

6*7

35

===

42

I know this is going to seem ridiculous but I'm not going to divide 35/42 by 7.

35 divide by 7 = 5

42 divide by 7 = 6

Just what you started with.

Now a little less obvious, suppose we multiply top and bottom of the ratio by a. a can be anything like (say) the 5th root of 3233

5* a

====

6 * a

Divide the top and bottom by a.

5a divided by a = 5

=======

6a divided by a = 6

So what's the answer? If you've read through this, you'll know that nothing changes.

The answer is the first one.

2.04 • 10 ^23 Which of the following shows and explain the approximate total mass , in grams , of all the atoms of the gas in the container

Answers

Answer:

20,400,000,000,000,000,000,000,000

Step-by-step explanation:

10 to the power of 23 is 1 with 23 zeros.

100,000,000,000,000,000,000,000 ⋅ 2.04 20,400,000,000,000,000,000,000,000

Hope I helped :)

Please consider Brainliest :)

(It took so long to type that)

I NEEEEDD HELP PLSSS

Answers

Answer: 32/9

:P

Step-by-step explanation:

Answer:

9x - 24 = 8 (D)

Step-by-step explanation:

3/4x - 2 = 2/3

Find ways to get each number (for example the 9x in 9x - 2 = 8) using the 3/4x

If we’re using 9x - 2 as the example, you find how many 3/4s fit into 9, which is 12

So the scale factor is 12.

You do 3/4*12 for 9 and see if it also fits with the -2

-2*12 = -24

You know that that one is wrong.

But if you look, there is an equation that has 9x and -24, so the third one is the answer

(Had I not been lucky enough to find those numbers before, you would’ve just done the same steps with the other problems)

Hope this helps! Good day ^_^

At summer camp the ratio of boys to girls was 5 to 4. If there were 40 boys, how many girls were there?

Answers

if there are 40 boys, there are 32 girls.

formula:

5x8= 40 ( the boys )
4x8 = 32 ( the girls )

Answer:

32 girls

Step-by-step explanation: 5*8=40 and 4*8=32

Gina Needs To Pack 130 Pens, 50 Pencils And 20 Erasers Into Identical Gift Bags So That Each Item Is Equally Distributed Among The Gift Bags. (I) Find The Largest Number Of Gift Bags That Can Be Packed. (Ii) Find The Number Of Each Item In A Gift Bag.

Answers

Answer:

Step-by-step explanation:

I think the best way is to split up the erasers before you do anything. That would mean there were 20 gift bags in all

If you did that, then each gift bag would contain 2 pencils with 10 left over.

Further 130 pens would divide up into 6 pens in each gift bag with 10 pens left over.

Round to the nearest tenth 37,636 ? pls help

Answers

Answer:

37,640

Step-by-step explanation:

MATHSSSS

Answer:

37,640

Step-by-step explanation:

its so simple good luck

which is greater, √10 or π?

Answers

Answer:

the square root of 10 is the answer becuase that = 3.16 and pi is 3.14

Step-by-step explanation:

Which of the following would be equivalent to
113
117
117
O 11. 114
115
011

Answers

9514 1404 393

Answer:

  11·11^4

Step-by-step explanation:

The applicable rules of exponents are ...

  (a^b)(a^c) = a^(b+c)

  a = a^1

  (a^b)/(a^c) = a^(b-c)

  a^0 = 1 . . . . for any 'a' not 0

__

The given expression is ...

  (11^8)/(11^3) = 11^(8-3) = 11^5

The offered choices are ...

  (11^7)/(11^7) = 11^(7-7) = 11^0 = 1

  11·11^4 = (11^1)(11^4) = 11^(1+4) = 11^5 . . . . matches the given expression

  (11^0)/(11^5) = 11^(0-5) = 11^-5

  11^0 = 1

3 pts
Question 11
Calculate the mean for a binomial distribution given n=50
and p=0.35.
0 32.5
0 1.37
0 17.5
0 3.37

Answers

Do you go to west greene

Step-by-step explanation:

64,000 in
a fraction

Answers

Answer:

undefined

Step-by-step explanation:


A tuxedo shop rents its tuxedos for $30 per day. They charge a nonrefundable fee of $ 60 for each tuxedo.
Use the dropdown boxes to create an equation that could be used to determine the total cost, y of renting a tuxedo for x days.

Answers

Given parameters:

Charge per day of Tuxedo = $30 per day

Non-refundable charge = $60 for each tuxedo

Unknown:

Equation to determine total cost = ?

Solution:

  Represent;

 Total cost  = y

 Number of days = x

Now;

   Total cost =  Non refundable charge + charge per day

          y  = $60 + $30x

The equation is;

        y = 60 + 30x for a tuxedo

Water weighs 8 pounds per gallon. How many ounces per gallons does water weight

Answers

Answer: 128

Step-by-step explanation:

On a​ map, 1 inch equals 15 miles. If two cities are 5 inches apart on the​ map, how far are they actually​ apart?

Answers

75 miles apart. Bababoi

Answer:

75 miles

Step-by-step explanation:

To find the answer, you should multiply 15 by 5 because if 1 inch is 15 miles, then 5 inches times 15 miles = 75 miles.

Heyyy! What is 0.45 (5 repeating) as a fraction?

Answers

Answer:

41/90

Step-by-step explanation:

- The answer given above does not actually have the repeating 5, this fraction does:

x = 0.455555

100x = 45.55555

10x = 4.5555555

90x = 41 (rounded)

therefore, the fraction is 41/90

Input this into a calculator and it gives you the decimal, with the rpeeatign 5s

what is the answer to 5 x 3/5

Answers

Answer:

5

Step-by-step explanation:

5×3=15

15÷3=5

Hope this helps :)

Answer: 3

Step-by-step explanation: So first you multiply 5 x 3/5 and then you get ur answer of 3 by 5/1 x 3/5 and then you do 5 x 3 / 1 x 5 = 15/5 and you convert it and you get 3 :)

Cross multiply to solve for x.
6
8
12
х
Value
Correct
Х
please help!!

Answers

x = 69 because of the funny number

What is 1/6 + 1/6 equal to? Pls show your work

Answers

Answer:

2/6

Step-by-step explanation:

Well, both Fractions have common denominators so there is no need for extra work.

So:

    1/6

+   1/6

________

2/6

help please!!!!! i don't understand, any help would be great!! thank you!!

Answers

Answer:

c

Step-by-step explanation:

just substitute a big number into x like 10^6 as it approaches

[tex] + \infty [/tex]

and a big negative number like -10^6 as it approaches

[tex] - \infty [/tex]

The sum of 36.4 and a number is 39.21, as shown below. What number should go in the box to complete the addition problem?

Answers

Answer:

The answer would be 2.

Step-by-step explanation:

U just subtract 39.21 -36.4= 2.81

what is the value of expression below when x=2? 2x+6

Answers

Answer:

10

Step-by-step explanation:

2(2) + 6

4 + 6

10

Answer:

10

Step-by-step explanation:

A linear equation has a slope of 2 and goes through points (3,5). Write an
equation for this line in slope intercept form.

Answers

Answer:

y=2x-1

Step-by-step explanation:

Convert 0.79 km to m.

Answers

Answer:

790

Step-by-step explanation:

Yaa baby

-0.5-(-.8)+0.8+(-.5​)

Answers

Answer:

your answer is -1

Step-by-step explanation:

What is 8.61•10 to the power of negative 8

Answers

Answer:

0.0000000861

Step-by-step explanation:

The answer is 8602 hope that helped

what is 1230 divided by 12

Answers

Answer:

102.5 is the answer sorry if u get I wrong

I need help pleaseeeeeeeee
Im need help im not that clever

Answers

Can you send me a clerar pic

Answer:

42.23

Step-by-step explanation:

The bill given after the voucher was used was 36.72.

If we multiply 36.72 with the voucher amount of 15% or .15

36.72*.15=5.508

We then have to add 5.508 to 36.72.

36.72+5.508=42.228=42.23 when rounding up.

PLEASE HELP I HAVE 5 MINUTES HELP!!!!
Maddie's grades on her last 4 tests were 85%, 74%, 94%, 80%. What does she need to get on her fifth test to have a test average of at least 85%?


INEQUALITY:


SOLUTION:

Answers

4(85+74+94+80)
425-333= 92

A student earns an 80 on a test but luckily he has earned two types of extra credit. He decides to use both: a 5-point bonus on a test grade, and a test grade increases by 10%. What is his highest possible new score? Show work. Write a function rule to describe this situation for any test score x.

Answers

Answer:

well, 80% increased by 10% is 88%, plus 5 points is 93% so it would be 93%

Step-by-step explanation:

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