Mathematics High School

True or false: f(x) is a function

A. True
B. False

True Or False: F(x) Is A Function A. TrueB. False

Answers

Answer 1
True because every x have one f(x) value
Answer 2

Answer:

True

Step-by-step explanation:

This is one to one relation, therefore it is a function

Related Questions

The markup on a restaurant meal is 50%. A meal costs $7.30 to produce, How much will the customer be charged before tax and tip?

Answers

Answer:

7.30*1/2=7.30/2=2.65

7.30+3.65=10.95

$10.95

decide whether the equation describes a function
y-2x=-4
yes or no ​

Answers

Yes because they both give you an x =2 and a y=-4

Answer:

yes

Step-by-step explanation:

hii can someone pls help me, I’m not sure what the answer is

Answers

I think this is the answer I hope this helps you

Answer:

try -10

Step-by-step explanation:

Tell whether the triangles are similar.

Answers

Answer: I think it’s not similar becaus of the size.

It’s also a different number so it’s a no.

Step-by-step explanation:

select the equation represented by the graph ​

Answers

Answer:

b) y = -2/3 + 1

Step-by-step explanation:

The format for the equation is y = mx + b

(m is the slope, and b is the y intercept)

Slope is rise over run (the units the line moves up and the units the line moves to the right)

In this case, the slope is: -2/3 because it goes down 2 and to the right 3.

The y intercept is 1.

This makes our equation:

y = -2/3 + 1

What is the slope of the following points (2,-3) and (8,20)?
23/6
18/11
5/28
6/23

WILL GIVE BRAINLIEST

Answers

Answer:

the answer is 23/6

Step-by-step explanation:

Answer:

23/6

Step-by-step explanation:

Slope formula is y₂-y₁/x₂-x₁

20--3=23

8-2=6

m=23/6

what was the beginning balance in the incomplete register shown​

Answers

Answer: there is no picture there for i can not help u :(

Step-by-step explanation:

Isaiah wants to attend Stanford. One year at Stanford costs approximately $45,000. He currently has $5,000 in savings. Isaiah has received a one-time grant for $2,000 and an annual academic scholarship for $20,000. He plans to enroll in the work study program that will pay $15,000 annually for part-time work. How much will Isaiah need to borrow in student loans in order to attend Stanford for 4 years?

Answers

17000dollars because all in all he has to pay about 82,000 dollars and you earn 60,000 dollars in 4 years while having 5000 in savings so that’s about 65,000 dollars. So basically I just have to subtract them and you get 17000 dollars

i created a kahoot!!! here's the pin!

Answers

Answer:

go subscribe to my yt DinoOn60fps

Which equation best represents the relationship between x and y in the graph?

Answers

Answer:

x and y are both on the graph

309,303, 297,..
Find the 33rd term.

Answers

Answer:

[tex]a_{33}[/tex] = 117

Step-by-step explanation:

(12x - 26)
50°
Find the value of x.

Answers

180-50=130
12x-26=130
12x=104
X=8.6 repeating

The value of x is 17.

Given,

The figure of a straight line angle.

The angle is split into (12x - 26)°and 50°.

We need to find the value of x.

What is a straight line angle?

The angle of a straight line is 180 degrees.

The sum of the angles of a straight line will always be 180 degrees.

Find the value of x.

We have,

(12x - 26)° and 50°

We know that,

The sum of the angles of a straight line will always be 180 degrees.

We have,

12x - 26 + 50 = 180

12x - 24 = 180

12x = 180 + 24

12x = 204

x = 204 / 12

x = 17

Thus the value of x is 17.

Learn more about straight line angles here:

https://brainly.com/question/23962015

#SPJ3

There are 50 marbles in a jar. Twenty of the marbles are red and the rest are blue. Suppose that you randomly select 4 marbles.
What is the probability that all 4 marbles selected are red?
0.211
0.08
0.125
0.021
0.015

Answers

Answer:

the answer would be A because it's greater

Find the value of the variable.

In triangle ABC, AB¯¯¯¯¯¯¯¯=14, BC¯¯¯¯¯¯¯¯=27, AC¯¯¯¯¯¯¯¯=19, and ∡A=32°. In triangle FGH, FG¯¯¯¯¯¯¯¯=14, GH¯¯¯¯¯¯¯¯=19, FH¯¯¯¯¯¯¯¯=2y+5, and ∡G=32°.

Answer: ???

Answers

Answer:

The variable, y is 11°

Step-by-step explanation:

The given parameters are;

in triangle ΔABC;          [tex]{}[/tex]              in triangle ΔFGH;

Segment [tex]\overline {AB}[/tex] = 14         [tex]{}[/tex]               Segment [tex]\overline {FG}[/tex] = 14

Segment [tex]\overline {BC}[/tex] = 27         [tex]{}[/tex]              Segment [tex]\overline {GH}[/tex] = 19

Segment [tex]\overline {AC}[/tex] = 19         [tex]{}[/tex]               Segment [tex]\overline {FH}[/tex] = 2·y + 5

∡A = 32°                       [tex]{}[/tex]                ∡G = 32°

∡A = ∠BAC which is the angle formed by segments [tex]\overline {AB}[/tex] = 14 and [tex]\overline {AC}[/tex] = 19

Therefore, segment [tex]\overline {BC}[/tex] = 27, is the segment opposite to ∡A = 32°

Similarly, ∡G = ∠FGH which is the angle formed by segments [tex]\overline {FG}[/tex] = 14 and [tex]\overline {GH}[/tex] = 19

Therefore, segment [tex]\overline {FH}[/tex] = 2·y + 5, is the segment opposite to ∡A = 32° and triangle ΔABC ≅ ΔFGH by Side-Angle-Side congruency rule which gives;

[tex]\overline {FH}[/tex] ≅ [tex]\overline {BC}[/tex] by Congruent Parts of Congruent Triangles are Congruent (CPCTC)

∴ [tex]\overline {FH}[/tex] = [tex]\overline {BC}[/tex] = 27° y definition of congruency

[tex]\overline {FH}[/tex] = 2·y + 5 = 27° by transitive property

∴ 2·y + 5 = 27°

2·y = 27° - 5° = 22°

y = 22°/2 = 11°

The variable, y = 11°

what is the x cordinate of the solution​

Answers

Answer:

x = - 4

Step-by-step explanation:

Given the 2 equations

y = - 2x - 5 → (1)

y = x + 7 → (2)

Substitute y = x + 7 into (1)

x + 7 = - 2x - 5 ( add 2x to both sides )

3x + 7 = - 5 ( subtract 7 from both sides )

3x = - 12 ( divide both sides by 3 )

x = - 4

1.
Find the slope of the line.
Ay
a) -574
b) 5/4
c) -4/5
d) 4/5

Answers

Answer:

a) -5/4

Step-by-step explanation:

Slope is fundamentally rise/run; The points on the line are relative to each other by decreasing/increasing the y-value of +/-5 and decreasing/increasing the x-value by +/-4

The function is decreasing so the slope has to be negative.

The only possible answer choice is -5/4 or a.

Solve for n.
21m + 14n=-7
n =

Answers

Answer:

n = [tex]\frac{-1}{2}[/tex] - [tex]\frac{3}{2}[/tex]m or n = -0.5 - 1.5m

Step-by-step explanation:

21m + 14n = -7 (subtract 21m from each side)

14n = -7 - 21m (divide everything by 14)

n = [tex]\frac{-7}{14}[/tex] - [tex]\frac{21}{14}[/tex]m

n = [tex]\frac{-1}{2}[/tex] - [tex]\frac{3}{2}[/tex]m or n = -0.5 - 1.5m

PLZ help ASAP PLEASE


PART 1

A jury wants to reward the defendant 5% of $788,116. How much money will be awarded in this court case?


A dress that cost $32 is on sale at 75% of its usual price. What is the sale price?



John notices that about 18% of the earnings from his job go to taxes. If he works 14 hours at $6.25 an hour, how much of his check will he get to keep?


Our town's present population is 4,800. The 1980 population was only 95% of this number. What was the population in 1980.


In the last school election, 452 students voted. Mary received 45% of the votes. How many students voted for Mary? (Round to the nearest whole number.)


The local sales tax on clothing is 7%. How much sales tax will Mrs. Eversole pay on purchases totaling $250?


There are 500 tickets on sale for the school's concert. Thirty-six percent of the tickets have already been sold. How many tickets have been sold?


An airline normally charges $350 for a plane trip from California to New York. Next month passengers can make the trip for 80% of the usual fare. What will the trip cost next month?



Part 2

At 3 P.M., a chimney casts a shadow that is 135% of its actual height. If the shadow is 37.8 ft, what is the actual height of the chimney?


Yesterday 294 books were checked out at the library. This is only 41% of the number usually checked out that day. How many books are usually checked out in a day?


Manuel sold 42 of his baseball cards at a collector's show. If this represented 12.5% of his total collection, how many baseball cards were in his total collection?


The only kind of rock that floats in water is pumice. Chalk although denser, absorbs more water than pumice does. If a piece of chalk absorbs 32% of its weight, how big is the piece of chalk that absorbed 1.7 ounces of water?



Fifty-six percent of the free-throws Wanda shot went in. If Wanda made 14 baskets, how many did she shoot?


Father is driving from Newmark to Briton and has already driven 160 miles. This is 85% of the total trip. How far is it from Newmark to Briton?


Miguel correctly answered 24 questions on his science test and earned 80%. How many questions were on the test?



Part 3

In the 2001-2002 NBA season Anfernee Hardaway of the Phoenix Suns attempted 191 3-point shots and made 155. What percent of the his three-point shots did he miss? (Round to the nearest whole number)


In a poll of 225 students, 36 said that their favorite Thanksgiving food was turkey, and 56 said their favorite was stuffing. What percent of students liked turkey the best?


In 2001, Barry Bonds reached a base on 342 of 644 time up at bat. What percent of the time did he reach the base?


Twenty-three of the twenty-five students in our math class passed the test on proportions. What percent of the class passed the test?



Thirty-two of forty students in our class participate in glee club. What percent of the class belongs to the glee club?

Answers

Answer:

Part 1

1. The amount of money that the jury will award the defendant is $39,405.80.

2. The sale price of the dress is $24.

3. John will keep $71.75 of his check.

4. The population of the town in 1980 was 4,560.

5. 203 students voted for Mary.

6. Mrs Eversole will pay $17.50.

7. 180 tickets have been sold.

8. The trip will cost $280 next month.

Part 2

9. The actual height of the chimney is 28 ft.

10. The number of books that are usually checked out in a day is 717.

11. Manuel's baseball cards' total collection will be 336.

12. The chalk will be as big as 5.31 ounces.

13. Wanda shoots are 25.

14. From Newmark to Briton will be about 188 miles.

15. There were 30 questions on the test.

Part 3

16. Anfernee Hardaway missed 19%.

17. The percentage of students that liked turkey the best is 16%.

18. The percentage of the time, Barry reached the base is 53%.

19. The percentage of the class that passed the test is 92%.

Step-by-step explanation:

a. 5% of $788,116 = $39,405.80

b. 75% of $32 = $24

c. John's earnings = $6.25 * 14 = $87.50

Taxes = 18%; therefore, take home = 82% (100 - 18)

He will keep 82% of $87.50 = $71.75

d. Population in 1980 = 95% of 4,800 = 4,560

e. 45% of 452 = 203

f. Mrs Eversole will pay $250 * 0.07 = $17.50

g. 36% of 500 = 180

h. 80% of $350 = $280

i. Actual height = 37.8/135 * 100 = 28 ft

j. If 41% = 294, then 100% = 294/41 * 100 = 717

k. Manuel's total collection = 42/12.5% * 100% = 336

l. If 32% = 1.7 ounces, then the chalk will be 1.7/32% * 100 = 5.31 ounces.

m. If 56% = 14, then Wanda shot 14/56% * 100% = 25

n. Newmark to Briton will be 160/85% * 100 = 188 miles

o. If 80% = 24, then the number of questions = 24/80% * 100 = 30

p. Anfernee missed 36 shots = 19% (36/191 * 100)

q. 36/225 * 100 = 16%

r. The percentage of the time, Barry reached the base is 342/644 * 100 = 53%

s. 23/25 * 100 = 92%

For a celebration a town is going to pass out miniature replicas of the town's
bell. The replicas are 9 in. tall. If the scale of the replica is l in. : 0.5 ft, how
tall is the actual bell?

Answers

Answer:

The bell is 4.5 feet tall

Step-by-step explanation:

The ratio of the replicas are 1in : 0.5ft, so each inch of the model is 0.5 feet in real life.

The replicas are 9 inches tall, so you would multiply by the scale factor, 0.5 feet. You want the units to end up being feet, so you position the fractions to cancel out inches.

[tex]\frac{9}{1}[/tex] in x  [tex]\frac{0.5}{1}[/tex] [tex]\frac{ft}{in}[/tex]

the inches cancel out and you are left with:

9 x 0.5 ft

Simplify.

4.5 ft

Use the order of operations to evaluate the expression. 8+2(3+4)÷2

Answers

Answer:

8+2(3+4)÷2 = 10

Step-by-step explanation:

The order of operation is a set of rules that guides how mathematical operations are done, to make for a universal solution.

Let us apply the rules while solving the problem 8+2(3+4)÷2

The rule is summarized in a set of Acronym known as PEMDAS

P - Parenthesis(Bracket) = (3+4) = 7

The expression becomes: 8+2(7)÷4

E - Exponents: this refers to powers, but is absent in this expression

M - multiplication: 8 + (2 × 7) ÷ 4 = 8 + 14 ÷ 7

D - Division: 8 + (14÷7) = 8 + 2

A - Addition = 8 + 2 = 10

S = subtraction. (absent in this expression)

∴ 8+2(3+4)÷2 = 10

Explain how you can break 4 × 8 into two smaller arrays.

Answers

Math :>

Step-by-step explanation:

please i really y need help it’s due in 4 mins

Answers

Answer: 1/2 + y

Step-by-step explanation:

Answer:

DV=3√10

Step-by-step explanation:

D(-1,7) and V(8,4)

to determine the length you use the distance formula

d =√(x2-x1)²+ (y2-y1)²

in thhis case

d=√(-1-8)²+(7-4)²

d=√81 +9

d=√90

d=  3√10

Anjali had $20 to spend on two pens. After buying them she had $16. How much did each pen cost?
Show your work

Answers

Answer:

$1.50 each

Step-by-step explanation:

Answer:

Each pen cost $2

Step-by-step explanation: the difference between $20 and $16 is $4 that means she spent $4 on 2 pens, $4 divided by 2 is $2 that means each pen cost $2

Hope this was helpful

What is the solution to the system of linear equations graphed below?

A. (0 , 4)
B. (4 , 1/2)
C. (1/2 , 4)
D. (0 , 3)

Answers

Use the app desmos it should give you the answer I hope this helps !

Answer:

its C

Step-by-step explanation:

(1/2,4)

What is the better buy?

12 apples for $5.49 or 18 apples for $6.49

Answers

Answer:

i dotnknow

Step-by-step explanation:

18 apples

Answer:

it is number 2

18 apples for $6.49

3.2y-1.4y+y-0.6y=0.55

Answers

Answer:

it is y=0.25

Step-by-step explanation:

because Step 1: Simplify both sides of the equation.

3.2y−1.4y+y−0.6y=0.55

3.2y+−1.4y+y+−0.6y=0.55

(3.2y+−1.4y+y+−0.6y)=0.55(Combine Like Terms)

2.2y=0.55

2.2y=0.55

Step 2: Divide both sides by 2.2.

2.2y

2.2

=

0.55

2.2

2 2/3+1 1/5=
(It has to be an improper fraction btw :))

Answers

Answer:

58/15

Step-by-step explanation:


Ten students obtained the following marks on a quiz: 5,5,5,5,7,7,8,9,10,
10. The median mark is
A) 5
B) 7
C) 8
D) 10

For the following set of data (3, 4, 4, 8, 10) the range is

A) 2
B) 3
C) 4
D) 7

Answers

The first one is b. The second one is d. Sorry if I’m wrong :(

2.) Two teachers worked out on the treadmill at the gym.

Mr. Geiger walked 2 miles in ¾ hour.
Mr. A walked 1 ¾ miles in 30 minutes

Who walked a faster rate? Show and explain your reasoning.










Answer_________________________________________________________________________

______________________________________________________________________________.

Answers

Answer:

Mr.A walked a faster rate

Step-by-step explanation:

Mr. A walked a faster rate since he walked 1 3/4 miles in 30 minutes which is 17.14 minutes a mile when dividing 30/1.75. Mr Geiger walked a slower rate 2 miles in 3/4 hours, 45/2 = 22.5 minutes per mile.

Can anyone help me with this algebra problem ?

Answers

Answer:

Its just where the lines meet, (2,1)

Step-by-step explanation:

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