Evaluate f(x)=2x-7 when x=-2,0 and 3

Answers

Answer 1

Answer:

Step-by-step explanation:

A) y = 2x – 7  and f(x) = 7 – 2x

Incorrect. These equations look similar but are not the same. The first has a slope of 2 and a y-intercept of −7. The second function has a slope of −2 and a y-intercept of 7. It slopes in the opposite direction. They do not produce the same graph, so they are not the same function. The correct answer is f(x) = 3x2 + 5 and y = 3x2 + 5.

 

B) 3x = y – 2  and f(x) = 3x – 2

Incorrect. These equations represent two different functions. If you rewrite the first equation in terms of y, you’ll find the equation of the function is y = 3x + 2. The correct answer is f(x) = 3x2 + 5 and y = 3x2 + 5.

 

C) f(x) = 3x2 + 5 and y = 3x2 + 5

Correct. The expressions that follow f(x) = and y = are the same, so these are two different ways to write the same function: f(x) = 3x2 + 5 and y = 3x2 + 5.

 

D) None of the above

Incorrect. Look at the expressions that follow f(x) = and y =. If the expressions are the same, then the equations represent the same exact function. The correct answer is f(x) = 3x2 + 5 and y = 3x2 + 5.


Related Questions

Lucy invested $19,000 in an account paying an interest rate of 3% compounded annually. Assuming no deposits or withdrawals are made, how much money, to the nearest hundred dollars, would be in the account after 8 years?

Answers

Answer: 24100

Step-by-step explanation:

The money in the account after 8 years is $24068.631.

Given that, principal=$19000 and the rate of interest=3%.

What is the formula to find the compound interest?

The formula to find the compound interest is CI=A-P.

Where, A=Amount that is [tex]A=P(1+\frac{r}{100} )^{n}[/tex], P=principal.

Now, [tex]A=19000(1+\frac{3}{100} )^{8}[/tex]

=19000[tex](1.03)^{8}[/tex]

=19000×1.26677008139

=$24068.6315464

=$24068.631

Therefore, the money in account is $24068.631.

To learn more about compound interest visit:

https://brainly.com/question/21270833.

#SPJ5

In terms of the δe values, which are the two expressions for the difference in internal energy between state a and state b? check all that apply. check all that apply. δeab=δe3+δe4 δeab=δe2+δe3 δeab=δe1+δe4 δeab=δe1−δe2 δeab=δe1+δe2 δeab=δe3−δe4 δeab=δe1+δe2+δe3+δe4

Answers

Complete Question

The complete question is shown on the first uploaded image

Answer:

The expression are

        [tex]\Delta E  = \Delta E _1 + \Delta E_2[/tex]

and

     [tex]\Delta E  = \Delta E _3 + \Delta E_4[/tex]

Step-by-step explanation:

Generally from the diagram  the energy change from state A to  state B is  

        [tex].\  \ \Delta E_2 \ \ \ \ \  \  \ \ \Delta E_2  \\A  \ \ \to \ \ \  C \ \ \ \to \ \ \  B\\[/tex]

Also  

[tex].\  \ \Delta E_3 \ \ \ \ \  \  \ \ \Delta E_4  \\A  \ \ \to \ \ \  D \ \ \ \to \ \ \  B\\[/tex]

So  two expressions for the difference in internal energy between state a and state b are  

      [tex]\Delta E  = \Delta E _1 + \Delta E_2[/tex]

and

     [tex]\Delta E  = \Delta E _3 + \Delta E_4[/tex]

The product of 7 and a number is greater than 42. If the
number is a whole number less than 10, what could the number
be?

Answers

Answer:

6

Step-by-step explanation:

Which of these cannot be an 2-value?
A. -0.88
B. O
C. 0.88
D. 1

Answers

The answer to your question is C

Calcule o valor de x, sabendo que as retas “e” “f” e “a” são paralelas
a)36
b)37
c)37,5
d)38

Answers

Answer:

c

Step-by-step explanation:

[tex]\frac{x}{25}=\frac{60}{40}\\\\By\:Thales's\:Theorem\\\\x=\frac{60*25}{40}\\\\x=\frac{60*5}{8}\\\\x=\frac{15*5}{2}\\\\x=\frac{75}{2}\\\\x=37.5[/tex]

Question: -3x – 10 = 32

Answers

Answer:

x = -14

Step-by-step explanation:

The first thing you are trying to do is get the x alone. so first you will look at 10 and do the opposite of the sign that you have. So you would take the -10 and make it +10. you would solve -10 + 10 and 32 + 10 because whatever you do to one side you do to the other. -10 +10= 0 and 32+10 = 42. Your equation now is -3x=42. we do not put -3x+0=42 because zero does not have a value. From here we would look at the -3x and do the opposite sign, which means dividing. whenever a number is next to x or any variable it is multiplication. For example, 7x is the same as 7*x. The opposite of multiplication is division. so we would do -3x/-3. We do 42/-3 because whatever we do to one side we do to the other. On the left side we are left with x then you add the equal sign and the quotient of 42/-3.

Answer: x = -14

Yanir has $50 use grids to model and calculate each amount how much is 9% of $50

Answers

$4.50 is the answer

Answer:

4.5

Step-by-step explanation:

which is the value of the expresson?​

Answers

The solution to your problem is 8 (:

What is the best first step in solving the equation below.
3x - 5 = 75 + 11
A Add 11 to both sides
B Divide by 7x on both sides
C Subtract 3x on both sides
D Add 3x to both sides

Answers

I think it A( not 100% sure )

Answer:

It’s C

Step-by-step explanation:

help urgent!!!!!!!!!!!

Answers

the answer should be -7

Answer:

negative 7

Step-by-step explanation:

Julissa has loan of $46,680. This loan has a simple interest rate of 4% per year. What is the amount of interest that Julissa will be charged on this loan at the end of one year? i need it now please

$18, 672


$1,867.20


$11,495


$48,547.20

Answers

Answer:

A

Step-by-step explanation:

Solve for y: 3x +y = 12
PLEASE SHOW STEPS.
Brainliest

Answers

Answer:

y=6

Step-by-step explanation:

you can do 3x2 to get 6. 12-6=6  so y can equal 6

Ink cartridges are heavy 1/4 pound. The total weight of the cartridges in a box is 2 1/2 pounds. How many cartridges does the box contain?

Answers

There are 10 cartridges in the box.

Answer:

10 cartridges

Step-by-step explanation:

2x4+2=10

hope this helps

Maya is taking her friends to a concert. Each ticket costs
$25, and souvenir T-shirts are $12 each. There is a $4
service fee for the entire purchase. She has $130. If she
buys 3 tickets, what is the maximum number of T-shirts
she can buy?
If x = number of tickets and y= number of T-shirts, which of the following
inequalities could you use to answer the problem?

Answers

Answer:

C. 25x+12y+4≤ 130

Step-by-step explanation:

Each ticket cost $25, so x would be the number of tickets she has to buy.

25x

Each T-shirt cost $12, so y would be the number of T-shirts she can buy.

12y

And since there is an service fee for the entree purchase, that's another $4.

+4

The cost of everything has to be less than $130, so the equation would be:

25x+12y+4≤ 130

If Jamie had 1 book then Sherman gave her one more how many books does Jamie have now?!

Answers

Answer:

bro is 2

Step-by-step explanation:

Answer:

Jamie would have 2 books now since Sherman gave her another book.

1+1 = 2

Step-by-step explanation:

Hope this helps..!

Find 33,688 divided by 8.

Answers

4211
Pls mark me brainliest

What is 51,255 divided by 300 as a decimal?
es )
A)
170.8
B)
170.85
170.851
D)
170.8512

Answers

Answer:

B. 170.85

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Describe how you would use the distributive property to simplify (39 x 5)

Answers

Answer:

Step-by-step explanation:

You can because a number is not outside the parentheses.

Step-by-step explanation:

9 times 5=45

30 times 5= 150

150+45=195

Can someone help me with this pls actually be right I need a good grade

Answers

First divide 16 by 12.

That equals 1.333333333

So divide 20 by that number and find what the hypotenuse is which is 15

After that add up all of the numbers so 9+12+15= 36

Final answer 36 inches or C

g. If you are going 70.0 mi/hr, how many miles do you travel in 0.681 hours!

Answers

Answer:

47.67 miles (in 40.86 minutes or 40 minutes and 51.6 seconds)

Step-by-step explanation:

Simple. Multiply these values together to cancel out the quantity in the denominator (cross multiply).

0.681 * 70 = 47.67

let x be the distance in miles:

70.0/1 = x/0.681

0.681 * 70 = 1 * x

47.67 = 1 * x

47.67 = x

What is the cost per ballon?

30 cents per balloon
33 cents per balloon
3 dollars per balloon
2 dollars per balloon​

Answers

$3 per balloon

Divide the total cost by the number of balloons in order to find how much a single balloon would cost.

the figure below is a rhombus y = ?

Answers

Answer:

y = 28°

Step-by-step explanation:

The opposite angles of a rhombus are congruent.

The diagonal divides the rhombus into 2 isosceles triangles, as all sides are congruent.

Thus the triangle containing base angles y and w has vertex = 124°

Since the triangle is isosceles then the base angles are congruent , thus

y = [tex]\frac{180-124}{2}[/tex] = [tex]\frac{56}{2}[/tex] = 28°

I will give Brain list plz help !!!!!

Answers

Answer:

140

Step-by-step explanation:

What is the Range:

-3
y>3

all real numbers

Answers

Answer:

y>3 i think

Step-by-step explanation:

do not count on me

Find 3 consecutive odd integers such that 1 less than 3 times the larger is equal to the sum of twice the first and twice the second number. Please explain why and with steps.

Answers

Answer:

7, 9, 11

Step-by-step explanation:

If x is the smallest of the integers, then x+2 is the next consecutive odd integer, and x+4 is the largest odd integer.

1 less than 3 times the largest is equal to the sum of twice the first and twice the second.

3(x+4) − 1 = 2x + 2(x+2)

3x + 12 − 1  = 2x + 2x + 4

3x + 11 = 4x + 4

7 = x

The integers are 7, 9, and 11.

Prove: BC|| AD

plz hurry

Answers

Answer:

AD is a straight angle and BC is straight also

Step-by-step explanation:

just look at the lines

Multiply 7*43, select True or False for each statement.
Using partial Products, the products are 21 and 28
Using regrouping, 21 ones are regrouped as 1 ten and 2 ones.

Answers

Answer:

301

Step-by-step explanation:

7x3 + 7x4 and add a 0 on to the end

3.72 plus 6.0064
(this is just part of my question.)

Answers

the answer is 9.7546

Answer:

9.7264

Step-by-step explanation:

3.72 + 6.0064 = 9.7264

I hope this helps!

what is the mid
point for a segment with endpoints (3,5) and (7,-1) ?



HELP PLSS

Answers

Answer:

Step-by-step explanation:an ordnairy ezbutin is an 10.4

malinda must take30 cubic centimeters of her medicine every 6 hours.how many milliliters are equivalent to 30 cubic centimeters

Answers

Answer:

30 milliliters

Step-by-step explanation:

multiply the volume value by 1

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