Given the function f(x)= -5x^{2} - x + 20, find f(3)

Answers

Answer 1
f = -5x^{2}/3 - x/3 + 20/3

Related Questions

need answer ASAP 30 points

Answers

seems to be an error please fix your connection

How do you Convert fractions to a decimal

Answers

When converting fractions to decimals you divide the numerator by the denominator to get your result

a line intersects the point (-3, -7) and has a slope of -3. what is the slope-intercept equation for this line?

y= -3x + ?​

Answers

The equation of the line is y= -3x-16

Students were asked to choose their favorite food.
If 4/10 the students chose pizza and 4/10 chose tacos,
what fraction chose either pizza or tacos?

Answers

Answer:

4/5

Step-by-step explanation:

Simply add the two fractions together

4/10 + 4/10 = 8/10

Then simplify

8/10 = 4/5

4/5 students chose either pizza or tacos

please solve this on a paper will be given brainliest ​

Answers

Answer:

[tex]x=2,\\x=-2,\\x=\sqrt{3},\\x=-\sqrt{3}[/tex]

Step-by-step explanation:

This is a quadratic in disguise. Let [tex]n=x^2[/tex]. We can rewrite the problem as a quadratic to solve:

[tex]n^2-7n+12=0,\\(n-3)(n-4)=0,\\n=3,\: n=4[/tex].

Now plug in these values of [tex]n[/tex] to solve:

[tex]\begin{cases}x^2=4, \:x=\pm 2\\\\x^2=3, x=\pm\sqrt{3}\end{cases}[/tex].

Therefore, our solutions are [tex]x=\pm 2, \:x=\pm\sqrt{3}[/tex].

A jet leaves the Charlotte, North Carolina, airport traveling at an average rate of 564 km/h. Another jet leaves the airport one half hour later traveling at 744 km/h in the same direction. Use an equation to find how long the second jet will take to overtake the first.




A.

2 1/15 h



B.

1 17/30 h



C.

− 1 17/30 h





It's on Gradpoint

Answers

Answer:

1 hour/ 34 minutes

Step-by-step explanation:

Not to great at angles! Someone help plz

Answers

Answer:

6) A

7) A

8) I can't see which angle is A

9) 70

10)45

Step-by-step explanation:

50 points!True or false? Will mark brainliest

Answers

Answer:

true

Step-by-step explanation:


The perimeter of a college basket ball court is 96 m and the length is 14m
more than the width. What are the dimensions?

Answers

width=17m

length= 31m

Step-by-step explanation:

width = x

length= x+14

perimeter = 96m

2(x+x+14)=96

4x+28=96

4x=68

x=17

width=17m

length= 31m

Gonzalo is trying to find the unit price On a 6-pack of orange juice on sale for $6.99. His sister says that at that price, each bottle of orange juice would cost over $1.05. Is she correct?

Answers

Answer:

Yes

Step-by-step explanation:

Unit prices come from dividing the price, $6.99, by the amount of product, 6,

6.99 ÷ 6 = 1.165

Now, because you cannot have more than two digits in the cents part, you would round that up to $1.17 which is over $1.05 dollars per bottle.

Expression of "three fifths of a number b subtracted from thrice the same number" into mathematical symbol

Answers

Answer:

3b - [tex]\frac{3}{5}[/tex] b  

Step-by-step explanation:

Let the number be "b"

So the expression would be:

3b - [tex]\frac{3}{5}[/tex] b  

QUICK WRITE A SHORT FICTION SOTRY 10 SENTENCES LONG IT CAN BE ABOUT ANYTHING

Answers

Answer:

One day Bob asked him mom if she could buy him a Ps5. She replied "No Bob, if you really want it you have to buy it yourself. And don't you already have that PlayStation 2 your grandma gave you?" After Bob heard that he ran out of the house to go find a job. He ran up to Mc Donald's and saw that they don't hire 15 year old's. Sadly he walked away. Then he ran up to Burger King they don't hire 15 year old's either. Then h realized he could deliver newspaper on his bike. So he went home told his mom and she was happy when he told her his idea.  The next morning he set out to his new job. As he got there he realized he didn't eat breakfast but that was fine he wasn't hungry he was to happy to think about anything else but that new Ps5. He got the newspapers and started going. After he delivered 27 newspapers it started getting dark so he went home. The next day went just like the first but he actually ate breakfast. Weeks went by throwing newspapers cycling, throwing newspapers cycling, throwing newspapers cycling. After 3 months he got his paycheck, just enough for the Ps5! Happily he went to the bank cashed it out and biked to target. He parked his bike ran into target into the electronics aisle scanning for the new Ps5.  Then the worker asked him politely "What are you looking for?" "A Ps5." He responded quickly. "Oh.." The worker said "Were sold out..."

Step-by-step explanation:

     May I have brainiest pls I'm trying to level up!

                               </3 PureBeauty

For each 11 mm of coloured fabric June uses to make her curtains, she also uses 1 cm of white fabric. Express the amount of white fabric to coloured fabric as a ratio in its simplest form

Answers

Answer:  The amount of white fabric to coloured fabric as a ratio in its simplest form is [tex]\frac{10}{11}[/tex]

Step-by-step explanation:

Given :

Amount of coloured fabric used by June = 11 mm = 1.1 cm    (1 mm=0.1 cm)

Amount of white fabric used by June = 1 cm

To find : amount of white fabric to coloured fabric as a ratio in its simplest form

To find the ratio in simplest form , the units of both measurements should be same

Thus [tex]\frac{\text {amount of white fabric}}{\text {amount of coloured fabric}}=\frac{1cm}{1.1cm}=\frac{10}{11}[/tex]

The amount of white fabric to coloured fabric as a ratio in its simplest form is [tex]\frac{10}{11}[/tex]

for the function h(x) = 4x2 -5x what is the value of (-3)

Answers

Answer:

h(-3) = 51

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

h(x) = 4x² - 5x

h(-3) is x = -3

Step 2: Evaluate

Substitute in x:                     h(-3) = 4(-3)² - 5(-3)Exponents:                           h(-3) = 4(9) - 5(-3)Multiply:                                h(-3) = 36 + 15Add:                                      h(-3) = 51

Answer:

f(-3) = 51

Step-by-step explanation:

f(x) = 4x^2 - 5x

f(-3) = 4(-3)^2 - 5(-3)

f(-3) = 4*9 - (-15)

f(-3) = 36 + 15

f(-3) = 51

My last one please help me

Answers

Answer:

Step-by-step explanation:

Only D has a chance of being correct. 7x means you multiply 7 and whatever x is together.

A and B look like they are added.

C looks like some sort of subtraction has taken place.

D: - 1 * 7 = - 7

4*7 = 28

5*7 = 35

I need serious help, this is hard

Answers

Answer:  58

======================================================

Explanation:

M is the midpoint of segment PQ. This means PQ is cut in half into two equal smaller pieces PM and MQ. We can say that PM = MQ.

Furthermore, we can say that PQ is twice as long as either piece, so

PQ = 2*PMPQ = 2*MQ

We'll use the second equation to say the following:

PQ = 2*MQ

6x+56 = 2*MQ .... replace PQ with 6x+56

6x+56 = 2*(5x+8) .... replace MQ with 5x+8

6x+56 = 2*5x + 2*8 .... distribute

6x+56 = 10x+16

6x+56-10x = 16 .... subtract 10x from both sides

-4x+56 = 16

-4x = 16-56 ..... subtract 56 from both sides

-4x = -40

x = -40/(-4) ..... divide both sides by -4

x = 10

Once we know the value of x, we use it to find the length of PM

PM = MQ

PM = 5x+8

PM = 5*10+8

PM = 50+8

PM = 58

Note how PQ = 6x+56 = 6*10+56 = 116 is exactly twice as large compared to 58. In other words, 2*58 = 116. This confirms that PQ is twice as long compared to PM or MQ. This helps confirm we have the right answer.

(3^5)^2/3^-2

Simplify please

Answers

Answer:

531441

Hope this was helpful

Answer: 531441

Step-by-step explanation:

3⁵*²/3⁻²=3¹⁰/3⁻²=3¹⁰⁻⁽⁻²⁾=3¹⁰⁺²=3¹²=531441

Under his cell phone plan Jason pays a flat cost of $60.50 per month and four dollars per gigabyte he wants to keep his bill at $68.90 per month how many gigabytes of data can use while staying within his budget

Answers

Answer:

2 gigabytes of data

Step-by-step explanation:

Given

Amount Jason keeps per month = $68.90

Cost of flat per month = $60.50

Balance for data = 68.90-60.50

Balance for data = $8.40

If 1Gigabyte = $4

x = $8.40

Cross multiply

4x = 8.40

x = 8.40/2

x = 2.20

Hence Jason can only use 2 gigabytes of data while staying within his budget

Answer:

2.1 gigabytes

Step-by-step explanation:

DELTA MATH

1. A book has x pages. How many pages are in the book if Maria read 45 pages of a book on
Monday, 1/2 the book on Tuesday, and the remaining 72 pages on Wednesday? *
(10 Points)
117 pages
234 pages
351 pages
468 pages

Answers

Answer:

234

Step-by-step explanation:

45+72=117

117x2=234

OK I KNOW I HAVE ASK MORE THAN ONE QUESTION BUT PLZ HELP You are a high school senior with a part-time job at a retail store. Your employer pays you $9.75 per hour. Last week, you worked a total of 30 hours.

The following payroll deductions were taken from your gross pay:

Federal income tax (withholding) at 10%
Social Security tax at 6.2%
Medicare tax at 1.45%
Use the check stub below to help you think through the problem.

You are encouraged to use scratch paper or Chrome Canvas as a scratch pad. You are allowed to check your calculations with a calculator.

check stub

The amount for MEDICARE TAX for this pay period was $
Blank.

Answers

tax is 204 with shipping

Pleas help
Giving Brainiest
Stay Safe And Healhy

Answers

‘A’ is the correct answer
It’s A, very much easy

A parabola can be drawn given a focus of (6,-2)and a directrix of x = -−3. What can be said about the parabola?

Answers

Answer:4

Step-by-step explanation:

6,-2=x-3=4

The cost of a jacket was originally 40$ It was on sale for 20% how much did they save

Answers

Answer:

$9

Step-by-step explanation:

In this circumstance, 20% off is the original number (40) divided by 5, and that's the answer. I hope this helps!

Answer: They saved $8

Step-by-step explanation:

0.20 × $40 = $8.00

Which graph has a slope of -3?

Answers

D.

Its the only one going down 3 and over 1.

The answer would be D because it says -3 and not just 3.

good night all ✨

[tex] {\boxed{\tt 1.}} \: \: \tt 24 + 5 \times 14 \div 2 = [/tex]

[tex]{\boxed{2.}} \: \: \: \tt 200 \div 4 \times 6 = [/tex]

must accompany "step by step"! :)

Answers

Answer:

1. 24+5*14/2=

step 1. 24+5=29

step 2: 14/2=7

step 3: 29*7=59!

2. 200/4*6=

step 1: 4*6= 24

step 2: 25/200= 300!

Step-by-step explanation:

hope this helps did step by step explanation! brainliest?

1. 24+(5×14)÷2

=24+70÷2

=24+35

=59

2. 200÷4×6

=50×6

=300

Graph the line that passes through the points (-1, -6) and (-8, 8) and determine the equation of the line.

Answers

Answer:

Step-by-step explanation:

Please help me! Please and thank you!

Answers

Answer:

4m+0.50

Step-by-step explanation:

What is the simplified form of 6√x•6√x•6√x•6√x​

Answers

Answer:

The correct answer is

[tex]1296 { x}^{2} [/tex]

Which equation shows the relationship between x and y?

Answers

Answer:

d

Step-by-step explanation:

Answer:

D. y = -3x

Step-by-step explanation:

plug x into the equation:

y = -3(-4) = 12 (s0 when x = -4, y = 12)

y = -3(-3) = 9

y = -3(-2) = 6

y = -3(-1) = 3

Help me please! ASAP thank you :)

Answers

Answer:

7

Step-by-step explanation:

7+2=9

7 puzzles

7 puzzles

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