Mathematics High School

f(x) = 8x - 11

f(9) =

Answers

Answer 1

Answer:

61

Step-by-step explanation:

hi! we can start off by plugging in the number 9 for x in the equation.

f(x)=8x-11)

f(9)= 8(9)-11

= 72-11

=61

hope this helps.

Answer 2
The answer is 61.

Replace the x in the equation with the nine. F(9) = 8(9) - 11

Now first multiply 8 x 9 which is 72

Now you have F(9) = 72 - 11
Subtract the two numbers.

F(9) = 61

Related Questions

-1/2 = m -7/4
solve for m

Answers

Answer:

[tex]\boxed {m = \frac{5}{4}}[/tex]

Step-by-step explanation:

Solve for the value of [tex]m[/tex]:

[tex]-\frac{1}{2} = m - \frac{7}{4}[/tex]

-Switch sides:

[tex]m - \frac{7}{4} = -\frac{1}{2}[/tex]

-Add both sides by [tex]\frac{7}{4}[/tex] and the least common multiple of both [tex]2[/tex] and [tex]4[/tex] is [tex]4[/tex]. So, convert [tex]-\frac{1}{2}[/tex] to a fraction with denominator [tex]4[/tex]:

[tex]m - \frac{7}{4} + \frac{7}{4} = -\frac{1}{2} + \frac{7}{4}[/tex]

[tex]m = -\frac{2}{4} + \frac{7}{4}[/tex]

-Since both [tex]-\frac{2}{4}[/tex] and [tex]\frac{7}{4}[/tex] have the same denominator, then you would add the numerators:

[tex]m = \frac{-2 + 7}{4}[/tex]

[tex]\boxed {m = \frac{5}{4}}[/tex]

Therefore, the value of [tex]m[/tex] is [tex]\frac{5}{4}[/tex].

PLEASE HELP GOTTA GO TO CROSS COUNTRY PRACTICE PLEASE AND THANKS MARK YOU BRAINLIEST

Answers

Answer:

1. $13.78

2. 5.3lbs

3. $4.56

4. 30.44lbs

5. $32.07

Step-by-step explanation:

Simple addition and subtraction.

Which expression is equivalent to 6(2x-8) *
A : 12x+48
B: 12x-8
C: 12x-48
D: 2x-48

Answers

Answer:

C.

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

6(2x-8)

6 * 2x = 12x

6 * -8 = -48

12x - 48

In a traffic jam, it once took me 2.5 hours to drive 30 miles across Atlanta. What was my speed in miles per hour on this trip?

Answers

speed = distance ÷ time = 30 ÷ 2.5 = 12 mph

Danica is buying a teal Jansport backpack at Kohl's for $45. The backpack is on sale for 15% off. What is the sale price of the backpack?

Answers

The sale price is $38.25

(Feel free to mark brainliest)

The backpack price is $38.25

ALGEBRA NATION!!! NEED HELP :(

Answers

Length of AC is 5 I hope this helps I can’t think right right now so bare with me











will mark brainles if answered quickly

Answers

Answer:

A {-3, -2, -1, 0, 1, 2, 3}

Answer:

A

Step-by-step explanation:

Rational numbers are whole numbers

You fill your car with gasoline at a service station for $2.75 per gallon. You pay with a $50 bill.
How much change will you receive if you buy g gallons of gasoline? How much change will you
receive if you buy 14 gallons?

Answers

The answer to your question is $11.50

FRESHMEN MATH PLEASE HELP

Answers

Answer:

see below

Step-by-step explanation:

[tex]\sqrt{2}\approx 1.41\\\\\sqrt{3}\approx1.73\\\\\sqrt{4}=2\\\\\sqrt{5}\approx2.23\\\\\sqrt{6}\approx2.44\\\\[/tex]

so we can say

[tex]1.36<\sqrt{2}<2.45\\\\1.65<\sqrt{3}<2.34\\\\1.65<\sqrt{4}<2.34\\\\2.16<\sqrt{5}<3.45\\\\2.41<\sqrt{6}<3.56[/tex]

that's the smalles possible intervals I could find, i don't know if those are the smalles, but those are what I found

TEEHEE HELPP ME PLS PLS PLS PLS???

Answers

Answer:

That is true not false dont get confused

the expression 9.78(4.3x + 5.15) simplifies to

Answers

Answer: 42.097x+50.4185

Step-by-step explanation:

Custom steel products also makes staircase frames like those shown here. How would the pattern you described be shown in a table? Graph? Equation?

Answers

Answer:

Graph would be the most reasonable.

Step-by-step explanation:

Hope I helped, good luck!<3!!

A contractor bought 12.6 ft2 of sheet metal. He has used 3.7 ft2 so far and has ​$160.20 worth of sheet metal remaining. The equation 12.6x−3.7x=160.2 represents how much sheet metal is remaining and the cost of the remaining amount. How much does sheet metal cost per square​ foot?

Answers

Answer:$18 per square foot

Step-by-step explanation:

12.6x-3.7x=160.2

8.9x=160.2

x=18

$18 per square foot

Lola purchased two pairs of shoes that each cost $20.00. She then purchased a pair of jeans for $14.50 and a shirt for $8.25. What is the total amount of money she spent, before tax?​

Answers

Answer: $62.75

Step-by-step explanation:

1.)$20.00 x2= $40.00

2.)$14.50 +$8.25= $22.75

3.)$40.00 +$22.75= $62.75

Hope this helps

Triangle XYZ is a right triangle with the right angle at vertex Y.

Angle X must be
.

Angle Z must be
.

The sum of angles X and Z must be
90°.

Answers

The sum of angles X and Z is 90°.

What is a triangle?

It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.

We have,

Triangle XYZ.

∠Y = 90°

Now,

The sum of the three angles must be 180°.

So,

∠X + ∠Y + ∠Z = 180

∠X + ∠Z = 180 - 90

∠X + ∠Z = 90

Thus,

∠X + ∠Z = 90

Learn more about triangles here:

https://brainly.com/question/25950519

#SPJ2

Determining Angle Relationships in Right Triangles

Acute
Acute
Equal to

Step-by-step explanation:

see picture

please someone help ... ( i’ll mark brainiest , hehe :) )

Answers

a. 25+90=115, 180-115=65 (III) b. 65+90=155, 180-155=25 (I) c. 180-25=155 (V)

f(x)=2x+1,g(x)=X2-2x-4

Answers

(x)=2x+1,g(x)=X2-2x-4

(x)=2•x+1
(x)=X•2-2•x-4

x = -1
2X-3x = 4

X = 1
2
= 0.5
x = -1

NEED HELP ASAP PLEASE

Answers

Answer:

[See Below]

Step-by-step explanation:

[tex]Hey~There![/tex]

_______________________

➜ First let's turn each number into a decimal:

[tex]14\frac{2}{5}=14.4[/tex] [tex]4\sqrt{13} =14.42220510[/tex]

➜ Now we order then from Least to Greatest:

[tex]14.33[/tex], [tex]4\sqrt{13}[/tex], [tex]14\frac{2}{5}[/tex]

_______________________

So your answer would be [tex]\bold~B[/tex].

_______________________

[tex]Hope~this~helps~Mate!~\\-Your~Friendly~Answerer,~Shane[/tex] ヅ

please please help me!!​

Answers

Answer:

k=1

Step-by-step explanation:

because the intercept form, y=mx plus b the y intercept changes where the graph is positioned. the line has been translated down to the y intercept 1, therefore that is what k equals

can you tell who is the fastest animal In the world

Answers

Answer:

Cheetah

Step-by-step explanation:

\Mrs. Sing invests $12,876 for her business at an annual interest rate of 7 percent for 3 years. Which number will Mrs. Sing substitute for r in the simple interest formula?

I = p r t
0.007
0.07
0.7
7

Answers

Answer:

0.07

Step-by-step explanation:its becuase 7% outta 100% =0.07. so  I=Prt

We have to solve for r

r=r/100

7%/100

0.07 per year

Hope this helps mark as brainliest plz

Answer:

0.07

Step-by-step explanation:

give brainlest pls

I need help with this math task, I don't know if you can do it with a photo or not, but I need the result, thanks!!

Answers

Answer:

under 1: 225

under 2: 450

under 3: 765

under 4:1020

Step-by-step explanation:

it multiplies each day

The function T = 25 - sin ( – 4)) +5
+55 gives the average monthly temperature, T, in a city, where m represents the
month. In which month is the average temperature the same as in m = 3?
Om = 5
Om = 7
Om = 9
O. m = 11

Answers

Answer:

the third one ithink

Step-by-step explanation:

The points (5,-2) and (7,r) lie on a line with slope 4. Find the missing coordinate r.

Answers

Answer:

A slope of four means that it moves up four and over 1. Since 7-5 is 2, you must half the 1. (7, 2.5)

Given the equation y = -3x + 6, the slope is

Answers

Answer:

-3 I think...

Step-by-step explanation:

y=mx+b. where m is the slope, since -3 is the value for m, it is the slope

IIIlas' car usses 65 L of petrol to travel 728 km, while Hanis car uses 48 L in 552 km

how much petrol would each car use to travel 830 km ?​

Answers

Answer:

65l-728km

x-830km

65×830/728=53950÷728=74,107

48L-552

x-830

48×830/552=39840/552=72.173

If a person walks 1/3 mile in 15 minutes, how far will that person walk in one hour? (ik im dumb dont need to say it.)

Answers

Answer:

1 and 1/3 miles in an hour

Step-by-step explanation:

thats slow, ive walked a mile in ten minutes, lol

(b^2+5) (-b^2+7) I need help asap pleas and thank you if you do

Answers

Answer:

42

Step-by-step explanation:

b to the second power thats 1 plus 1 plus 5 times -1to the second power plus seven times 7 and 6 get you the answee 42

The √28 is between which two whole numbers?

Answers

Answer:

between 5 and 6

Step-by-step explanation:

Choose 2 perfect squares either side of 28, that is

25 < 28 < 36, then

[tex]\sqrt{25}[/tex] < [tex]\sqrt{28}[/tex] < [tex]\sqrt{36}[/tex] , thus

5 < [tex]\sqrt{28}[/tex] < 6

Expand & simplify
(x+2)(x−3)(x+4)

Answers

(x+2 would be -2). (x-3 would be +3) (x+4 would be -4). This is what i learned in algebra
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