Mathematics High School

if f(x)=9x-2 find the value of expression f(5)

Answers

Answer 1

Answer:

f(x)=43

Step-by-step explanation:

you put the 5 in the places where the x is so

F(5)=9(5)-2

45-2=43

Related Questions

What is the equation of the line

Answers

it’s either y = 0 or x = 0, i believe it’s x= 0 but it could be the other

Answer:

x=-9

Step-by-step explanation:

Plis help me plis! I need help with this

Answers

T=PV/K

Starting with V=KT/P, multiply P on both sides to get PV=KT

Then divide K on both sides to leave T alone

And you get.....T =PV/K

Answer:

The light blue/greenish one that says T=PV/K or Greeland

Step-by-step explanation:

We can make the equation more simplier by multiplying both sides by P to remove fractions.

It would become VP=KT

The only answer with VP or PV is B, or the T=PV/K

also, to isolate T, divide the VP=KT by K on both sides to isolate T.

VP/K=T

A movie is 2 and a quarter hours long. A family is able to watch 2/6 of the movie before having to leave the theater. How many hours of the movie did the family watch?

Answers

Answer:

29 mints OK. O that's v the answer all

hi need help with math
some one help

Answers

Answer:

Ether C or D. hope this helps

HELP GIVING AWAY 55 POINTS!!!!
Pete wants to mix 4 quarts of 20% orange juice concentrate with some 60% pineapple juice concentrate to get a 50% punch concentrate for a party. How much of the 60% pineapple juice concentrate should be used? please answer ASAP and explain thought process

Answers

Answer:

12 quarts

Step-by-step explanation:

Let the amount of pineapple juice be x quarts, the concentration of juice is as following equation:

4*0.2 + x*0.6 = (4 + x)*0.50.8 + 0.6x = 2 + 0.5x0.6x - 0.5x = 2 - 0.80.1x = 1.2x = 12

Expand the linear expression 4(10x - 4).
40x - 16
40x + 16
40x - 4
10x - 16

Answers

Answer:

the correct answer is 40x-16

Step-by-step explanation:

here,

=4(10x-4)

=40x-16

Which choices are equivalent to the expression?

Answers

You already have the correct answer. B

Which of the following inequalities matches the graph? (1 point)
-10
-0
10
1. x>-3
2. x<-3
3. y>-3
4. y<-3

Answers

Given:

The graph of an inequality.

To find:

The inequality.

Solution:

From the given graph it is clear that the boundary line is a vertical line parallel to y-axis at the distance of 3 units from the left of y-axis. So, the equation of boundary line is

[tex]x=-3[/tex]

Now, the shaded portion lies on the left of the boundary line. It means the values which are less than 0 are included in the solution set.

The boundary line is a dotted line. So, x=-3 is not included in the solution set.

So, the required inequality is

[tex]x<-3[/tex]

Therefore, the correct option is B.

Which inequality represents all values of x for which the product below is
defined?
please help very confused

Answers

Answer:

C. x ≥ 5

Step-by-step explanation:

You must meet both conditions:

(x -5) ≥ 0 and (x +2) ≥ 0

For the first condition, ...

x ≥ 5 . . . . add 5 to both sides

For the second condition ...

x ≥ -2 . . . . subtract 2 from both sides.

Since both conditions must be met, we must have ...

x ≥ 5

i hope this helps :)

(Can you help me with this math problem)?
Triangles QRS and Triangles QTV are similar; Which equation must be true?

A) T, V/ R, S = T, Q /R, Q
B) T, Q / V, Q = T, V / T, R
C) V, Q / S, Q = R, Q / R, S
D) T, V / V, Q = R, S / R, Q

Answers

Answer:

Um im not sure

Step-by-step explanation:

Its probly A if im doing it write

what is angle 1,2,3,4,5,6,7

Answers

1 is 51, 2 is 34, 3 is 95, 4 is 38, 5 is 47, 6 is 74, 7 is 59. If it says to put u it’s they’re all in degrees

help please!!!!!!!!!

Answers

Answer:

Angle 3= 37 degrees, Angle 2 = 143 degrees, Angle 4= 143 degrees

Step-by-step explanation:

Angle 3 is across from Angle 1 so they are equal to each other. Now to find Angles 2 and 4, cover angles 2 and 3 with your hand so you are just looking at 1 and 4, they are on a line. Lines are 180 degrees, so since angle 1 we know is 37 degrees, then 180-37= 143 degrees for angle 4. Now, 2 and 4 are opposites of each other, and share the same value of 143 (just like how we found angles 1 and 3 to be equal bc they are across from each other)

A middle school took all of its 6th grade students on a field trip to see a play at a theater that has 3100 seats. The students left 1395 seats vacant. What percentage of the seats in the theater were filled by the 6th graders on the trip?

Answers

Answer: 55% of the seats in the theater were filled by the 6th graders on the trip.

Step-by-step explanation:

Given: Total seats = 3100

Seats vacant= 1395

Seats occupied by 6th graders = 3100-1395 = 1705

The percentage of the seats in the theater were filled by the 6th graders on the trip = [tex]\dfrac{\text{Seats occupied by 6th graders}}{\text{Total seats}}\times100[/tex]

[tex]=\dfrac{1705}{3100}\times100\\\\= 55\%[/tex]

Hence, 55% of the seats in the theater were filled by the 6th graders on the trip.

Answer
A 15
B 100
C 120
D 148

Answers

120 bc all u have to do was find the area

Answer:

120

Step-by-step explanation:

6*5*4=120 and boom that’s your answer

If the cost of a barrel of oil is $50.00, how much is the cost of one gallon of that oil? (One barrel of fuel oil contains 42 gallons.)

Answers

$1.19 gotta make answer longer

Answer:

$1.20

Step-by-step explanation:

(23 PTS) WILL GIVE BRAINLIST

Answers

Answer:

Step-by-step explanation:

g(x) would be

- 2

Can someone help me on this real quick PLZZZZZZZZZZZzz

Answers

Step-by-step explanation:

1)On the table for Yards put 3 and 5. Then put Feet as 6, 12 and 18.

2)On 2 put [tex]\frac{6}{2} \frac{9}{3} \frac{12}{4} \frac{15}{5}[/tex]

Each ratio is equal to 3:1

3)The equation that describes the relationship is x:y

4)The equation that describes the relationship is 3:50

Plz help! Will give brainliest!

Answers

That would be A hope this Helps :)

Answer:

Step-by-step explanation:

To divide the 2 fractions

• leave the first fraction

• change division to multiplication

• turn the second fraction upside down

[tex]\frac{11}{12}[/tex] × [tex]\frac{7}{5}[/tex]

= [tex]\frac{11(7)}{12(5)}[/tex]

= [tex]\frac{77}{60}[/tex]

= 1 [tex]\frac{17}{60}[/tex] → D

Solve for a 1/2 a-9=11

Answers

Answer:

a=31

Step-by-step explanation:

1/2(a-9)=11

a-9=22

a=22+9

a=31

Mr. Gage wants to buy a new car A but is considering used Car B. Car A costs $2,500 less than twice as much as car B. If car A costs $20,800, what is the cost of car B?

Answers

1250 is the answer simple math.

20,800 divided by 2 is 10,400.
Then 10,400 - 2,500 is 7,900, the correct answer is 7,900

Help please!

These are Edward's calculations for his net worth: Net Worth = $400 - $500 = -$100. What does the negative net worth mean?

A)His liabilities are greater than his assets
B) His assets and liabilities are the same
C) His assets are greater than his liabilities
D) His assets and liabilities do not affect each other.

Answers

Answer:

A. His liabilities are greater than his assets.

Step-by-step explanation:

In the expression 2a-5+4a-9, name the constants

Answers

Answer:

-5 and -9 are the constants, can also be written -14

HELP!!! VERY CONFUSED????

Answers

i believe the answer is 17 hope this helps

Answer:

I am pretty sure the answer is 17

I need help asap
Less then 5 minutes

Answers

Answer:

um well he would be well rested so he would score higher than others but I'm not sure on the exact number maybe around 90-100

I need help on this problem!

Answers

Answer:

Blank 1: 1

Blank 2: -19

Blank 3: 4

Blank 4: 96

Step-by-step explanation:

-1+4=3

3/3=1

3(-5)-4=-19

8+4=12

12/3=4

3(100)-4=96

Alamo Cola manufactures a soft drink made with 2.5% peach juice concentrate. What is this percent expressed as a fraction and decimal?

A) 1/4 and 0.025

B) 1/4 and 0.0025

C) 1/40 and 0.025

D) 1/400 and 0.0025

Answers

i don't know sorry if its wrong please correct me, it looks like c

Find the missing values in the ratio table.
for every 81 girls, there are 72 boys

Answers

Answer:

its d

Step-by-step explanation:

Answer:

Step-by-step explanation:

We know that for every 81 girls, there are 72 boys so how do u get 81? You'd have to multpify 9x9 = 81 and 8x8= 72 so the ratio is 8:9

How many 2/3 -cup servings are in 6 cups of cereal?

Answers

6/(2/3) = 6*(3/2), 6*3= 18, 18/2=9 servings

Answer:

Nine.

Step-by-step explanation:

Please help me out!!

Answers

Answer:

D. 9(3.1416)

Step-by-step explanation:

What is the probability when Sue will randomly select from a treat bag containing 6
lollipops and 4 gum balls. Sue will select a treat, NOT REPLACE it, and then select a
second treat. Sue will select a gumball then a lollipop.

Answers

Answer:

6/25

Step-by-step explanation:

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