Mathematics High School

PLEASE HELP!

Function Notation
Evaluate the following expressions give the functions below:
F(x)=4x+5 H(x)= x+ 2
g(x)=3x^2-4

1.f(5)=

2.h(-8)=

3.g(2)=

4.f(-4)=

5.h(13)=

6.g(3)=

7.f(6)=

8.h(-9)

Answers

Answer 1

Answer:

sorry we can't read such type of this exercise

Related Questions


True or False? (-x)^6 = -x^5 Explain your
answer (use either words or an example).

Answers

Answer:

False

Step-by-step explanation:

[tex](-x)^{6}[/tex] = [tex]x^{6}[/tex]

- [tex]x^{5}[/tex] = - [tex]x^{5}[/tex]

Thus

[tex](-x)^{6}[/tex] ≠ - [tex]x^{5}[/tex]

Lines DE and AB intersect at point C.
What is the value of x?

Answers

Answer:

25

Step-by-step explanation:

[tex](2x + 2) +( 5x + 3) = 7x + 5 = 180 \\ 7x = 175 \\ x = 25[/tex]

Answer:

25

Step-by-step explanation:

2x+2+5x+3=180

7x+5=180

7x=175

x=25

Find the midpoint of the segment with the following endpoints.
(10,7) and (5, 4)

Answers

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{(7.5 \: , \: 5.5)}}}}}[/tex]

Step-by-step explanation:

Let the points be A and B

Let A ( 10 , 7 ) be ( x₁ , y₁ ) and B ( 5 , 4 ) be ( x₂ , y₂ )

Finding the midpoint

[tex] \boxed{ \sf{midpoint = (\frac{x1 + x2}{2} , \: \frac{y1 + y2}{2})}} [/tex]

[tex] \dashrightarrow{ \sf{( \frac{10 + 5}{2} \: , \: \frac{7 + 4}{2} )}}[/tex]

[tex] \dashrightarrow{ \sf{( \frac{15}{2} \: , \frac{11}{2}}} )[/tex]

[tex] \dashrightarrow{ \sf{(7.5 \: , \: 5.5)}}[/tex]

Hope I helped!

Best regards! :D

Brett decides to order some new books using a $50 gift card he received for his birthday. He decides to buy as many of a new series of books he can without exceeding the amount on his gift card. If each book cost $12.99 and shipping charges are $7.99 for any size order, what is the maximum number of books that Brett can purchase?

Answers

the correct answer is 3

CA-Common Core Math 8 (INT) - 1536
Analyzing a Table
Aaliyah's Savings Plan
25+8.25w
w
t
(w, t)
Equation; t = 25 + 8.25w, where w is the number of
weeks and t is the total Aaliyah saved,
What is the error that occurred when Aaliyah
completed her table?
O The table must start at week 1.
12
25+8.25(12)
124
(12, 124)
13
25+8.25(13)
132.25
(132.25, 13)
O The w and t columns need to be switched.
O The ordered pair (132.25, 13) should be (13,
132.25)
O 25 + 8.25(15) = 148.75 in week 15 is not calculated
correctly.
14
25+8.25(14)
140.5
(14, 140.5)
15
25+8.25(15)
148.75 (15, 148.75)
3) Intro
Done
evious Activity

Answers

Answer:

Its c

Step-by-step explanation:

i just did it on edge

C is correct.

Equation: t = 25 + 8.25w, where w is the number of weeks and t is the total Aaliyah saved.

What is the error that occurred when Aaliyah completed her table? The ordered pair (132.25, 13) should be (13,  132.25).

please help! i need to find the mean

Answers

Answer:

         The mean is 3.74

Step-by-step explanation:

[tex]\overline x =\dfrac{-3\cdot4+(-2)\cdot2+3\cdot1+4\cdot1+6\cdot4+8\cdot7}{4+2+1+1+4+7}\\\\\\\overline x =\dfrac{-12-4+3+4+24+56}{19}\\\\\\\overline x =\dfrac{71}{19}=3.7368421....\approx3.74[/tex]

Marie was trying to show her friend why -3 -8 equals a positive product. This is what she wrote:
-3 x 0 = 0
-3 × (?) = 0
-3(8) +-3(-8) = 0
-24 + 24 = 0
What should Marie write in place of the question mark?
OA) 8 + 8
OB) -8 + (-8)
OC) 8 + (-8)
OD)-8 + 0​

Answers

Answer:

8+8=16

-8 + (-8)= - 16

8+ (-8)=0

-8 + 0 = - 8

The ratio of white cars in the parking lot to
black cars is is 5 to 7. The number of white
cars is 24 less than the number of black cary
How many black cars are there?

Answers

Answer:84

Step-by-step explanation:

you multiply each side by 12. That gets you 60 white cars and 84 black cars. 60 is 24 less than 85

f(x) = 3x ^ 2 + 2x + 10

Answers

Answer:

No x-intercept (zero)

f(0)=10

Step-by-step explanation:

No x- intercept/Zero

Step-by-step
F(x) = 3x^2 + 2x + 10
To find x-intercept/zero, Substitute
F(x) = 0
0 = 3x^2 + 2x + 10
Swap the side of the equation
3x^2 + 2x + 10 = 0
Solve the quadratic equation
ax^2 +b+c = 0
X= -b+ b^2 -4 a c/ 2a
X= -2+ 2^2 -4 x 3 x 10/2x3
X= -2+ 4-4 x 3 x 10/ 2 x 3
-> x=-2+ 4-120/2 x 3 -> x=-2 4-120/6
X=-2+ -116/6
-> calculate the difference
X= -2+ -116/6
The square root of a negative
number dose not exit in the set of
Real numbers
No x-intercept/zero

Evaluate.
(−2
5
2
​
)
2

Answers

Answer:

-63504

Step-by-step explanation:

emily bought 3 vases of flowers.the most expensive vase of flowers was 12.00 and least expensive was 8.00 which is a reasonable total amount emily could have paid for the 3 vases of flowers

Answers

Answer:$30

Step-by-step explanation:8+12=20 and I would figure she had another one with a price inbetween the two so I chose 10 and added 20+10=30

0.297
x7.1
=297
+ 20790
21.087
O True
O False

Answers

Answer:

False.

Step-by-step explanation:

0.297x7.1=2.1087

2.1087+20790= 20792.1087

Solve for w.
4 = 0.25(w-4.3)

Answers

W=20.3

solve what's in the parenthesis, move the terms, calculate, then divide both sides.

Answer:

20.3

Step-by-step explanation:

I did it and it was right on khan

Jan joined the dining club at the local cafe for a fee of $29.95. being a member entitles her to save $2.50 every time she buys lunch. so far, Jan calculates that she has saved a total of $12.55 by joining the club. write and solve an equation to find out how many times Jan has eaten lunch at the cafe

Answers

Answer:

17 lunches

Step-by-step explanation:

- 6 - 11
please help i don’t know what i’m doing!!

Answers

Answer:

-17

Step-by-step explanation:

Answer:

-17

Step-by-step explanation:

this is the correct answer

Determine the value of c that satisfies the given relation. 3c-1/3=c/2

Answers

Answer:

[tex]2c - 3[/tex]

Step-by-step explanation:

[tex]3c - \frac{1}{3} = \frac{c}{2} = 2c - \frac{1}{3} (2) = 2c - \frac{2}{6} = 2c - 3[/tex]

EXPLAIN: How can you use proportions to solve problems?

NO TROLL ANSWERS!!

Answers

Helps you work with number more effectively

Answer:

In problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. To find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

Step-by-step explanation: i hope this helps if it does vote me the brainliest or like and rate 5 starts if u cant vote me

You have $60 and your sister has $120. You are saving $7 per week and your sister is saving $5 per week. How long will it be before you and your sister have the same amount of money?

Answers

Answer:

27 weeks

Step-by-step explanation:

Question 1. √80/6 Question 2. (2√5)^2

Answers

Answer:

Q1: is 0

Q2: is 20

Step-by-step explanation:

Q1: Divide the numbers 0 ÷ 6 = 0

√8 × 0

√8 = 2√2

2 × 0 × √2

Apply rule 0 × a = 0

Q2: Apply exponent rule : (a × b)^n = a^n b^n

2^2(√5)^2 = 2^2 (√5)^2

2^2 = 4

4 (√5)2

(√5)^2 = 5

4 × 5

Multiply the numbers: 4 × 5 = 20

HELP FAST PLZ!! I GIVE BRANLIY!
what is the difference between the Integers -11 and -3?​

Answers

Answer:

wait on second thought -8

Step-by-step explanation:

Answer:

-8

Step-by-step explanation:

-11<-3

-3-8 = -11

Difference = -8

What is the equation of the line that passes through the point (2, -1) and has a slope of 3/2?​

Answers

Answer:x=-2

Step-by-step explanation: -1=3/2x+2

Given :-

A line having a slope of 3/2 passes through (2,-1) .

To Find :-

The equation of the line .

Answer :-

According to the question ,

m = 3/2

Point = (2,-1)

We know Point slope form of the line as ,

y - y¡ = m ( x - x ¡ )

Substitute ,

y - (-1) = 3/2 ( x - 2 )

y + 1 = 3/2x - 3/2*2

y +1 = 3/2x - 3

2( y +1) = 3/2x *2 - 3*2

2y + 2 = 3x - 6

3x -2y -8 = 0

If a customer or five items in the order had a total of 17 wheels how many wagons were ordered show your work and explain your answer

Answers

4 wagons because there r 4 wheels on the wagon so you would divide 17 by 4

Can someone please help me (it’s question 15)

Answers

Answer:

C

Step-by-step explanation:

1. Brie knows there is a relationship between the grades on
her math tests and the time she spends studying for those
tests. Identify the independent quantity and the dependent
quantity in this problem situation.

Answers

Time is the independent variable as it can be treated as a controllable constant against which changes in a system can be measured. How much time you spend effects how much time you study, making studying the dependent.  

what fraction is bigger? 3/7 or 5/12. let me know the method.

Answers

Answer:

3/7

Step-by-step explanation:

3/7 5/12

36/84   35/84

what is the result of converting 20 ounces into pounds?

Answers

Answer:

20 ounces is 1.25 pounds

Step-by-step explanation:

Answer:

20 ounces -> 1.25 pounds

Step-by-step explanation:

Divide the given ounce value by 16 or multiply the ounce value by 0.0625

20 oz /16 = 1.25 lbs

20 oz x 0.0625 = 1.25 lbs

What is the mean for the data set, to the nearest whole number? 8.5 10 8 9 I need help

Answers

Answer:

9

Step-by-step explanation:

Add the numbers together and then divide by how many numbers there are.

Answer:

you need to show it

Step-by-step explanation:

I have to explain how u can use properties of operations to evaluate the expression 18+4(28)​

Answers

Answer:

116

Step-by-step explanation:

You have to add 18+4 first. You should then get 22.Last you must multiply 22 by 28 to get 116

what is the definition of a point?

Answers

A point is a 0-dimensional mathematical object which can be specified in -dimensional space using an n-tuple ( , , ..., ) consisting of. coordinates. In dimensions greater than or equal to two, points are sometimes considered synonymous with vectors and so points in n-dimensional space are sometimes called n-vectors.

Answer:

In modern mathematics, a point refers usually to an element of some set called a space. More specifically, in Euclidean geometry, a point is a primitive notion upon which the geometry is built, meaning that a point cannot be defined in terms of previously defined objects.

Step-by-step explanation:

Hope this helps! If it does, please mark me brainliest, and press the heart to thank me. Thank you so much, let's spread the learning! ;)

evaluate the function when x = 4 b(x) = -2x - 4

Answers

Ohhhh same I wanna know the answer to that
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