Given the function ƒ(x) = 5x^2 − 9x + 18, find ƒ(3). A) ƒ(3) = 31 B) ƒ(3) = 36 C) ƒ(3) = 49 D) ƒ(3) = 85

Answers

Answer 1

Answer:

36

Step-by-step explanation:

ƒ(x) = 5x^2 − 9x + 18,

Let x=3

ƒ(3) = 5*3^2 − 9*3 + 18,

      =5*9 - 27+18

        45 - 27+18

         36


Related Questions

If f(x) = 3x - 1 and g(x) = x + 2, find (f + g)(x)

A) 2x-3
B)3x-3
C)4x+1
D)2x-1

Answers

Answer:

C.

Step-by-step explanation:

help me with this pls like omg soooo stressful

Answers

Answer:

t =1

Step-by-step explanation:

3t - 18 = 4(-3-3/4t)

Distribute

3t - 18 = -12 -3t

Add 3t to each side

3t -18+3t = -12 -3t+3t

6t -18 =-12

Add 18

6t -18+18 = -12+18

6t = 6

Divide by 6

6t/6 = 6/6

t =1

Answer:

t = 1

Step-by-step explanation:

start by distributing the 4 to whats in the parentheses.

4 (-3 - 3/4t)

-12 - 3t

*helpful tip: if you multiply a fraction by its denominator the product is equal to its numerator

now you have:

3t - 18 = -12 - 3t

add 18 to both sides

3t = 6 - 3t

add 3t to both sides

6t = 6

divide both sides by 6

t = 1

In one hour, Frank earns the money shown below. How much does he earn in 7 weeks if he works 3 hours each week?

↓↓

$12

↑↑



ITS DUE TODAY HELP PLEASE

Answers

Answer:

$252

Step-by-step explanation:

If Frank earns $12 an hour and works 3 hours a week, he makes $36 a week. So for 7 weeks, he earns $252 because $36x7 weeks= $252 in 7 weeks

What is the value of
* f(-1) when f(x) = 2x + 2?

Answers

The answer is 0.

please see the attached picture for full solution

hope it helps...

Good luck on your assignment

4
3
5
6
Jacob rolls two fair number cubes. Find the probability that the sum of
the numbers he rolls is 8.
A Use the table to find the sample space for
1 2.
rolling a particular sum on two number cubes.
Each cell is the sum of the first number in that
1
row and column.
2
3
B
How many possible outcomes are in the
sample space?
4
5
с
6
Circle the outcomes that give the sum of 8.
D How many ways are there to roll
a sum of 8?
What is the probability of rolling a sum of 8?.
TRY THIS!
Find the probability of each event.
1a. Rolling a sum less than 5.
1b. Rolling a sum of 7 or a sum of 9.
REFLECT
1c. Give an example of an event that is more likely than rolling a sum of 8.
1d. Give an example of an event that is less likely than rolling a sum of 8.

Answers

B is the correct answer

slope=m=

please need help, if someone could explain ;)

Answers

Answer:

5/3

Step-by-step explanation:

The line goes through the points (0,0) and (3,5)

m = (y2-y1)/(x2-x1)

   = (5-0)/(3-0)

   = 5/3

What is the standard form of this function?
f(x) = (x − 2)2 + 6
A. f(x) = -x2 − 8x + 10
B. f(x) = -x2 − 6x + 10
C. f(x) = x2 − 8x + 10
D. f(x) = x2 − 4x + 10

Answers

Answer:

D

Step-by-step explanation:

To find the standard function, open the bracket

f(x) = (x-2)^2 + 6

(x-2)^2 becomes

x(x-2) -2(x-2)

= x^2 -2x -2x + 4

= x^2 -4x + 4

Now add 6 and it becomes x^2 -4x + 4 + 6

= x^2 -4x + 10

Please please help me I literally don’t understand this

Answers

Answer:

n iynoo etindeo soiefijnqaifnqaiwrfofoainjfoiawsfiowoianfqaihjnfoiansn

Step-by-step explanation:

Answer:

AA similarity postulate

Step-by-step explanation:

so if you look at the angle they both have a 90 and the larger triangle is just flipped a different way. because triangles must add up to 180, you have your 90 degree angle on both and the larger one has one degree of 50 meaning its other angle must be 40 in order to add up to 180 and the smaller triangle is the opposite as it has a 40 and 90 degree angle meaning the other must be 50 therefore have Angle Angle similarity

plz help!! i believe it's a but i'm not 100% sure

Answers

Answer:

its a

Step-by-step explanation:

Don’t second doubt yourself, you’re absolutely correct.

Solve 7y-6=2y+8
Show that 7/8-5/6=1/24
Show that 5/8÷7/12=1 1/14
Simplify fully v4×v7÷vt

Answers

Answer:

Please check the explanation part for more details.

Step-by-step explanation:

1. Solve [tex]7y - 6= 2y + 8[/tex]

Send all components contain [tex]y[/tex] to the left, the other components to the right:

<=> [tex]7y - 6 = 2y + 8[/tex]

(sign of  [tex]2y[/tex] is changed from negative to positive, sign of [tex]6[/tex] is changed from negative to positive)

<=> [tex]5y = 14[/tex]

Divide both sides of equation by [tex]5[/tex]:

<=> [tex]y = \frac{14}{5}[/tex]

2. Show that  [tex]\frac{7}{8} - \frac{5}{6} =\frac{1}{24}[/tex]

First, we prove that [tex]24[/tex] is least common multiple(LCM) of the denominators of [tex]2[/tex] components on the left side ([tex]8[/tex] and [tex]6[/tex]).

[tex]8 = 2^{3}[/tex]

6 = [tex]2[/tex] x [tex]3[/tex]

=> LCM = [tex]2^{3}[/tex] x [tex]3[/tex] = [tex]8[/tex] x [tex]3[/tex] = [tex]24[/tex]

Multiply the first component [tex]\frac{7}{8}[/tex] by a factor which is equal to the quotient of LCM and denominator: [tex]\frac{24}{8} = 3[/tex]

=> [tex]\frac{7}{8} = \frac{7*3}{8*3} = \frac{21}{24}[/tex]

Multiply the second component [tex]\frac{5}{6}[/tex] by a factor which is equal to the quotient of LCM and denominator: [tex]\frac{24}{6} = 4[/tex]

=>[tex]\frac{5}{6} = \frac{5*4}{6*4} = \frac{20}{24}[/tex]

=>[tex]\frac{7}{8} -\frac{5}{6} = \frac{21}{24} - \frac{20}{24} = \frac{1}{24}[/tex]

3. Show that [tex]\frac{5}{8} / \frac{7}{12} = \frac{11}{14}[/tex]

[tex]\frac{5}{8} / \frac{7}{12} =[/tex] [tex]\frac{5}{8} * \frac{12}{7} =[/tex] [tex]\frac{60}{56} =\frac{60/4}{56/4} = \frac{15}{14} = 1\frac{1}{14}[/tex]

4. [tex]\frac{v4*v7}{vt} = \frac{v}{v} * \frac{v*4*7}{t} = \frac{v*28}{t}[/tex]

Hope this helps!

:)

A rope weighs 600 grams per meter of length.What is the weight in kilograms of 12.2 meters of this rope?

Answers

it’s 7.32 just answered this question

How many points does a plane have that is on the same line



Answers

In a three-dimensional space, a plane can be defined by three points it contains, as long as those points are not on the same line.

Calculate the surface area of each polyhedron. Pls!! Show work

Answers

Answer:

384 m^2

Step-by-step explanation:

Surface area of cube = area of 1 side x 6

area of 1 side, in this case = 64 m^2

so, total surface area = 64 x 6 = 384 m^2

Please answer correctly !!!!!! Will mark brainliest answer !!!!!!!!!!

Answers

Answer:

see below

Step-by-step explanation:

1. 0 = (r + 1)(r + 8)

Using Zero Product Property, r = -1, r = -8

2. h(r) = (r + 1)(r + 8)

         = r² + 9r + 8

         = (r + 9/2)² - 81/4 + 8

         = (r + 4.5)² - 12.25 (Complete the square)

   Vertex: (-4.5, -12.25)

1:750 scale model of the Sydney Opera House after a trip to Australia. The length of the model is 24.4 centimetrers. Find the actual length x (in meters) of the Sydney Opera House.

Answers

Answer:

183 meters

Step-by-step explanation:

A 1:750 scale model means that each cm on the model corresponds to 750 cm of the actual Sydney Opera House. If the model is 24.4 centimeters long, the actual Opera House has a length of:

[tex]x = 24.4*750\\x=18,300\ cm\\x=183\ m[/tex]

The actual length of the Sydney Opera House is 183 m.

Work out 50 as a presentage of 10

Answers

Answer:

500%

Step-by-step explanation:

10= 100%

50= 5*10= 5*100%= 500%

What is the least common multiple of 4 and 12?
4
12
24
48

Answers

Answer: 12

Step-by-step explanation: To find the least common multiple or lcm of 4 and 12, begin by listing the first few multiples of each number.

Multiples of 6

1 × 6 = 6

2 × 6 = 12

3 × 6 = 18

Notice that we skipped 0 × 6 in our list of multiples.

That's because 0 × 6 is 0 and our least common multiple can't be 0.

When listing the multiples of 12, it's a good idea to keep an eye on the list of multiples for 4 so that we will notice when we find a least common multiple.

Multiples of 12

1 × 12 = 12

Notice that 12 is also a multiple of 6 so our least common multiple is 12.

We can stop here because all other multiples

that we find will be greater than 12.

So the least common multiple or LCM of 4 and 12 is 12.

Answer:

The LCM is 12

3  times 4 = 12 :)

Which graph could represent the price of a fence selling at a unit rate of R dollars per foot?

Answers

Answer:

the middle one is the correct answer

Step-by-step explanation:

Answer:

the answer is (1,R)

Step-by-step explanation:

Can someone please help

Answers

Answer:

B. 81 weeks

Step-by-step explanation:

If we plug everything into the equation it should look like this:

[tex]82 = w + 1[/tex]

Then we would subtract 1 from both sides, then we are left with w:

[tex]w = 81[/tex]

Hope this helps!

Fully Factorise 5k^2+7k​

Answers

Answer:

k(5k +7)

Step-by-step explanation:

The only factor which is available in both 5k^2 and 7k is k, so you take k outside the bracket and then put the remaining in the brackets

Answer:

5k^2+7k = k(5k+7)

Step-by-step explanation:

5k^2/k = 5k

7k/k = 7

Which expression does not represent "the sum of n and 6"?
O6 + n
On +6
O on

Answers

Answer:

n+6

Step-by-step explanation:

sum means add

n+6

The second statement is the ___ of the first.

Answers

Answer:Contrapositive

Explanation:

This is for contrapositive negating the converse of the conditional.

Hence,option D is correct.

Hope it helps

Good luck on your assignment

Let the polynomials A = 7x² + 3xy e B = -3xy.
Determine A + B

a) 7x²
b) 3xy
c) 7x² + 6xy
d) 14x² + 6xy
e) -3xy

Answers

Answer:

The answer is A.

Step-by-step explanation:

You have to add up both polynomials together :

A = 7x² + 3xy

B = -3xy

A + B = 7x² + 3xy + (-3xy)

= 7x² + 3xy - 3xy

= 7x²

The angle measurements in the diagram are represented by the following expressions

Answers

Answer:

Ahhh, vertical angles, thank goodness for these, hahaha!

According to the Vertical Angles Theorem, ∠A and ∠B are consider proportionate, meaning they're the same on both sides.

Knowing this, you have to set each equation equal to each other in order to solke this one!

Let's do it!

6x + 18 = x + 93

STEP 1: Isolate X (bring it to one side) by subtracting x from both sides.

5x + 18 = 93

STEP 2: Get X alone by subtracting 18 from both sides.

5x = 75

STEP 3: Finally, to get X alone, we need to do the opposite of multiplication, which is division. So we shall divide by 5 on both sides.

FINAL ANSWER: x = 15

NOTE: X is B.

Answer:

For whom ever has this question

B=108    x=15

A ∩ B = ∅. P(B) = .9 P(A ∪ B) = .9. Find P(A).

Answers

Answer:

Given:  P(A ∩ B) = 0, P(B) = 0.9, P(A ∪ B) = 0.9.

We have: P(A ∪ B) = P(A) + P(B) - P(A ∩ B)

=>  0.9 = P(A) + 0.9 - 0

=> P(A) = 0.9 - 0.9 = 0

 

Hope this helps!

:)

Find an equation for the hyperbola with center at origin (0,0), vertex (-6, 0) and focus
at (-10, 0)

Answers

-10 is the vertex dueeee

Which of the following options represents a logical first step that can be used
to prove the trigonometric identity
cos(x)/ cos(x)+sin(x)tan(x)=cos^2(x)?

Answers

Answer: Option B.

Step-by-step explanation:

Here we can start with the relation

cos(x)^2 + sin(x)^2 = 1

multiply both sides by cos(x)

cos(x) = cos(x)^3 + sin(x)^2*cos(x) = cos(x)^2*(cos(xI + sin(x)^2/cos(x))

now we can replace sin(x)/cos(x) = tg(x)

cos(x) = cos(x)^2*(cos(x) + sin(x)*tan(x))

So the correct option is B

Aubrey is putting flooring in a room that is 13 feet long and 10 feet wide. The flooring costs ​$4.00 per square foot. How much will the flooring for the room​ cost?

Answers

Answer: $520


Explanation: We can tell that this is an area problem from the mention of the square foot and from the simple fact that only area would cover the whole room.

The floor is a rectangle and the formula for area of a rectangle is A=lw.

13*10 is 130.

When you multiply this by 4, you get 520.

What is the value of the product (3 – 2i)(3 + 2i)?

timed test please help me

Answers

Answer:

the answer is 9-4i

Step-by-step explanation:

multiply

Nsnnsjakaokasjnxnamqmsmx xndkekqkqlq

Can you show the working out as well please?​

Answers

Answer:

BC = 60

Step-by-step explanation:

3X + X = 80      <---- X = BC

3X + X = 4X

4X = 80   <---- DIVIDE BOTH SIDES BY 4

4X ÷ 4 = X

80 ÷ 4 = 20

20 × 3 = 60

Answer:

AB = 20 m

BC = 60 m

Step-by-step explanation:

Let AB be x

So BC becomes 3x

AC is 80 metres

So,

x+3x = 80

4x = 80

Dividing both sides by 4

x = 20

So,

AB = 20 metres

While

BC = 3(20) = 60 metres

Other Questions
Can someone answer this question please please help me I really need it if its correct I will mark you brainliest . What part of a sentence can stand by itself? What form of sound repetition connects the words in this line from "The Fish"?grim, wet, and weaponlikeSelect the best answer from the choices provided.A. alliterationB. assonanceC. consonanceD. rhyme Required Information The following information applies to the questions displayed below) Vanishing Games Corporation (VGC) operates a massively multiplayer online game, charging players a monthly subscription of $13. At the start of January 2018, VGC's income statement accounts had zero balances and its balance sheet account balances were as follows:________. Cash $1,600,000 Accounts Receivable 174,000Supplies 15,100Equipment 930,000Buildings 510,000Land 2,050,000Accounts Payable 113,000Deferred Revenue 74,800Notes Payable (due 2025) 94,800 Common Stock 2,500,000Retained Earnings 2,498,100 In addition to the above accounts, VGC's chart of accounts includes the following: Service Revenue, Salaries and Wages Expense, Advertising Expense, and Utilities Expense. The following transactions occurred during the January month:________.A. Received $57,750 cash from customers on 1/1 for subscriptions that had already been earned in 2017. B. Purchased 10 new computer servers for $41,500 on 1/2; paid $11,500 cash and signed a three-year note for the remainder owed. C. Paid $14,300 for an Internet advertisement run on 1/3. D. On January 4, purchased and received $5,300 of supplies on account. E. Received $150,000 cash on 1/5 from customers for service revenue earned in January. F. Paid $5,300 cash to a supplier on January 6. G. On January 7, sold 19,900 subscriptions at $13 each for services provided during January. Half was collected in cash and half was sold on account. H. Paid $380,000 in wages to employees on 1/30 for work done in January. I. On January 31, received an electric and gas utility bill for $6,260 for January utility services. The bill will be paid in February. find f(3) for f(x)=3^x+3 How do you use your notes to identify main points,important terms, definition and synthesize info as you prepare for study and examinations? Quien grito A- Esmerelda grita B- Esmerelda gritoC- Esmerelda grite D- Esmerelda gritio 80 POINTS!!!!The table shows how much Eric earns for pruning trees. Write an equation that relates t, the number of trees Eric prunes to p, the amount he earns. Solve your equation to find how much Eric earns if he prunes 7 trees. List out the merits and challenging factors of federal system. What additional information is needed for each book entry to follow MLA guidelines?a word describing the mediuma description of the books circulationthe month and day the book was readthe number of pages in the book If Romeo earns 8% more than Juliet, Romeos salary is how many times Juliets salary?A) 1.08B) 0.92C) 80D) 108 Mira is writing a research paper about how Mark twains personal life influences writing which of the following are secondary sources that she could use for evidence in her paper. A magazine article about mark twain the novel adventures of tom sawyer by mark twain the autobiography of Mark Twain the novel life on the Mississippi by Mark Twain an essay about mark twain by a literary critic What is the sum of 3 times a number and 2 To approach runway 17 of the Ponca City Municipal Airport in Oklahoma, the pilot must begin a 3 descent starting from a height of 2714 ft above sea level. The airport is 1007 feet above sea level. To the nearest tenth of a mile, how far from the runaway is the airplane at the start of his approach? On December 31, a Company held the following short-term available-for-sale securities. The Company had no short-term investments prior to the current period. Prepare the December 31 year-end adjusting entry to record the fair value adjustment for these debt securities. 2 PointsWhich word best describes Martin Luther King Jr.'s tone in the video?O A. CalmO B. SarcasticO C. JitteryO D. Angry What is the slope of the line shown below? anyone know the answer ? :( Which of the following climate types is found near the equator? HELP EASY PHYSICS QUESTION URGENT :))A ball is kicked off the ground with a velocity of 15 m/s at an angle of 30 horizontally. What is the horizontal distance the ball travels before returning to the ground? a.15.5 m b.17.5 m c.19.5 m d.21.5 m