f(x)=5x-1; find f (-2), f (0), and f (x+1)

Answers

Answer 1

Answer:

f(-2) = -11

f(0) = -1

f(x+1)= f (x+1)=5x+4

Step-by-step explanation:

Answer 2
1 2 e Huhhhyeeaaaaaaahhhhhhhhhh

Related Questions

The sum of two numbers is 70, and their difference 30. Find the two numbers using the process of substitution. Let the first umber = x and the second number = y.

Answers

Answer:

x = 50, y = 20.

Step-by-step explanation:

x + y = 70

x - y = 30

From the second equation x = 30 + y, so substituting this in the first equation:

30 + y + y = 70

2y = 70 - 30 = 40

y = 20

and x - 20 = 30

so x = 50.

Answer:

20 , 50

Step-by-step explanation:

The sum of two numbers is 70 ⇒ x + y = 70  -------------(I)

x = 70 - y  

Their difference 30 ⇒ x - y = 30  ----------(II)

Substitute x = 70 - y in equation (II)

70 - y - y = 30

Combine like terms

70 - 2y = 30

     -2y = 30 - 70

      -2y = -40

Divide both sides by (-2)

y = -40/-2

x = 20

Substitute the value of x in (I)

20 + y = 70

y = 70 - 20

y  = 50

What is the product?
(4x) {-3x^8}{-7x^3}

Answers

Answer:

[tex]84x^{12}[/tex]

Step-by-step explanation:

Step-by-step explanation:

[tex](4x)( - {3x}^{8} )( - {7x}^{3} ) \\ (4 \times - 3 \times - 7)( {x}^{} \times {x}^{8} \times {x}^{3} ) \\ (81)( {x}^{ 1 + 8 + 3} ) \\ 81 {x}^{12} [/tex]

Arden has 7/8th yard of ribbon. What is the maximum number of 1/16th yard-long pieces Marilyn can cut from this ribbon?

Answers

Answer:

2/8 is the answer

Step-by-step explanation:

I think the answer

Graph the polygon and its image after a reflection in the line x=4.

Answers

Answer: To do so, reflect it on the Y axis and then move it 4 times.

Step-by-step explanation:

5x^2-9 when x = -2

5(-2)^2-9

I know the answer is 11, but how? When I did it, I got -29 and I don’t know how to get 11. Could someone explain step by step on how to get the correct answer?

Answers

5(-2)² - 9

First, solve the one in the bracket which is -2 × -2 which gives us =4

5(4) - 9

Then, multiply 5 with 4 so

20 - 9

Then you'll get 11

Help fasttttt the first correct answer I will give brainliest!!!!

Answers

Answer: i belive its 5 1/3 or B

Step-by-step explanation:

sorry if im wrong

Step-by-step explanation:

= ([tex]\frac{8}{3}[/tex])([tex]\frac{4}{3}[/tex])([tex]\frac{3}{2}[/tex]) = [tex]\frac{16}{3}[/tex] or [tex]5\frac{1}{3}[/tex]

please give me a brainliest answer

It takes 5 minutes for 7 people to drink 25 pints of water.At this rate,how long would it take 15 people to drink 160 pints of water

Answers

Answer:

14.9 min

Step-by-step explanation:

r=rate

r25=5*7

r25=35

r=35/25

r=1.4

substitution

r160=t*15

t=time

r=1.4

1.4*160=t*15

224=t*15/15

224/15=t

14.9 min

gradient from 2 - 1/2y = 0​

Answers

Given :

2 - 1/2y = 0

To find :-

The gradient form .

Solution :-

The gradient form/ slope intercept form

y = mx + c ,

On converting ,

2 - 1/2y = 0 1/2y = 2 y = 2*2y = 4y = 0x + 4

Find the slope of the line that contains the following pair of
points:
(-3,-4) and (3,-2).

Answers

Answer:

1/3

Step-by-step explanation:

gradient or slope = m

m = change in y ÷ change in x

= (-4 - -2) ÷ (-3 - 3)

= (-4 + 2) ÷ (-3 - 3)

= -2 ÷ -6

= 1/3

Rick bought 3 apples and 2 oranges for a cost of $1.55. Kim bought 4 apples and 3
3
oranges for a cost of $2.15. Find the cost of one apple.

Answers

Apples cost $0.35 each

Apples = x
Oranges = y

3x + 2y = 1.55
4x + 3y = 2.15

I like the substitution method
2y = -3x + 1.55
y = -1.5x + 0.775

4x + 3(-1.5x + 0.775) = 2.15
4x - 4.5x + 2.325 = 2.15
-0.5x + 2.325 = 2.15
-0.5x = -0.175
x = 0.35

The sum of the digits of a two digit number is 15.If the number formed bt reversing the digits is than the number by 27,find the original number​

Answers

Answer:

96 is the number. x = 9

Step-by-step explanation:

x = 9, so y = 15–9 = 6, and so the answer is 96

brainliest?

I need an answer for this please.​

Answers

Answer:

N0O0O0O0O0O0O0O0O0O0O

Step-by-step explanation:

the quotient of 49 and a number

Answers

Answer:

7

Step-by-step explanation:

The price of a flash drive that regularly sells for $16 is increased by 15%. Write two different expressions to find the new price.

Two expressions please! I can't figure any out on my own... :(

Answers

Answer:

16 × .15 and 16 × 15/100

Step-by-step explanation:

...

what is 1.07 × 103 in standard form.

Answers

Answer:

Multiply  1.07  by 103. 110.21

Step-by-step explanation:

Tell me if i'm wrong. Hope this helps!

if 2 + 2^2 + 2^3 +...+ 2^n = 510 then n = ?

Answers

Answer:

N= 8

Step-by-step explanation:

Answer:

n = 8

Step-by-step explanation:

This Geometric series. r = 2 and a = 2

[tex]S_{n}= \dfrac{a(r^{n}-1)}{r-1}\\\\\\\dfrac{2(2^{n}-1)}{2-1}=510\\\\\dfrac{2*(2^{n}-1)}{1}=510\\\\2*(2^{n}-1) = 510\\\\2^{n-1}=\dfrac{510}{2}\\\\2^{n} - 1 = 255\\\\2^{n}=255+1\\\\2^{n} = 256\\\\2^{n} =2^{8}[/tex]

n = 8

Find the measures of the interior angles.

what is angle a, b, and c

Answers

Using angle sum property

[tex]\\ \sf\longmapsto x+90+30=180[/tex]

[tex]\\ \sf\longmapsto x+120=180[/tex]

[tex]\\ \sf\longmapsto x=180-120[/tex]

[tex]\\ \sf\longmapsto x=60[/tex]

1x2x2x2x2x2x2x22222x0

Answers

Answer:

0

Step-by-step explanation:

Anything times 0 will be 0.

0
———————that’s the answer

a pole that is 3.3m tall casts a shadow that is 1.77 m long. at the same time , a nearby tower casts a shadow that is 38.5 m long. how tall is the tower? round your answer to the nearest meter​

Answers

Answer:

21m

Step-by-step explanation:

First, divide 38.5 by 3.3.

Then, multiply that number by 1.77.

You will get 20.65...

Rounded, you will get 21 because .65 is bigger than half of one.

-kiniwih426

Find the missing side of each triangle. Round your answers to the nearest tenth if necessary.
(Please show your work)

Answers

Answer:

Below

Step-by-step explanation:

Use reverse pythagorean theorem

     c^2 = a^2 + b^2

You can either rearrange the equations, or plug the values in an solve for b :

     b^2 = c^2 - a^2

            = 15.1^2 + 9.7^2

            = 1339.2

Square root this number

            = 11.5723809

        x  = 11.6 in

Hope this helps! Best of luck <3

>> Answer

___________

[tex] \: [/tex]

[tex]\boxed{ \rm{answer \: by \: { \boxed{ \rm{☆HayabusaBrainly}}}}}[/tex]

Step by step :

x² = (15,1)² - (9,7)²

x² = 228,01 - 94,09

x² = 133,92

x = 11,6in

If there is 15 flowers in 3 pots how many flowers are in one pot

Answers

Answer:

5 simple because 5*3 =15

the achievement first family handbook has 235 Pages Ms. Lieberman and print 450 copies of the document for the Middle School Scholars on Monday and 193 copies on Tuesday how many pages were printed in all

Answers

Answer:

151,105 pages

Step-by-step explanation:

(450 + 193) copies * 235 pages / copy = 643 copies * 235 pages = 151,105 pages

see screenshot below/above

Answers

Answer:

x-int: (-2,0)

y-int: (0,1.333)

Step-by-step explanation:

someone please help me

Answers

Answer:

the slope is -2

Step-by-step explanation:

Answer:

1/1 = 1

Step-by-step explanation:

Use rise/run.

The x value increases by 1 in the same amount of time that the y value increases by 1. This gives you the slope 1/1 (y increase/x increase).

1/1 can then be converted to 1.

Point M(-6,8) is dilated from the origin with a scale factor of 1/2. What is the coordinate of M'? *

Answers

Point M(-6,8) is dilated from the origin with a scale factor of 1/2, hence the new point is M'(-3, 4)

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, dilation and translation.

If a point A(x, y) is dilated by a factor k, the new point is A'(kx, ky).

Given Point M(-6,8) is dilated from the origin with a scale factor of 1/2, hence the new point is at:

M'(-3, 4)

Find out more at: https://brainly.com/question/13176891

The cost of 2 tables and 3 chairs is $705. If the table costs $40 more than the chair, how much does a table cost?

Answers

Answer:

Step-by-step explanation:

2 tables and 3 chairs is $705

Let t stand for table and c stand for chair

3c + 2t = 705

We are told that the table costs $40 more than the chair, so t = c + 40

Now we can insert this into the equation

3c + 2(c + 40) = 705

The next step is to distribute the 2

3c + 2c + 80 = 705

Then combine like terms

5c + 80 = 705

To get the variable by itself, you have to subtract the 80 from both sides.

5c = 705 - 80

5c = 625

This means that 5 chairs costs $625.

Divided both sides by 5 to isolate the variable

c = 625/5

c = 125

Great, now you know the cost of one chair, $125!

The question is asking how much a table costs, and we know that a table costs $40 more than a chair.

A table costs $125 + $40

A table costs $165

Hope this helps! =)

A store sells a 3 -pound bag of oranges for $3.60 and a 5 -pound bag of oranges for $5.25 . What is the difference between the price per pound for the 3 -pound bag of oranges and the price per pound for the 5 -pound bag of oranges

Answers

Answer:

The price of 3 pounds would be $1.20 per pound and the price of 5 pounds would be $1.05 per pound

So, Five pound would cost 15 cents less than the 3 pounds

Step-by-step explanation:

Divide the price by the pounds

Hope this helps

Solve for X: square root 2x power of 2 +5 = 2

A. plus and minus 1

B. square root 2

C. plus and minus 2

D. no solution​

Answers

I think the answer is D

Show your work on this I will mark as brainliest as well

Answers

Answer:

(-1, -4.5)

(-1.5, -2.5)

Step-by-step explanation:

To find the midpoint add the coordinates and divide by 2

19.( -8,-2) (6,-7)

((-8+6)/2, (-2+-7)/2) = (-2/2, -9/2) = (-1, -4.5)

20. ( 6,5) (-8,-10)

(( 6+-8)/2 , (5-10)/2) = (-3/2,-5/2) = (-1.5, -2.5)

Answer:

19. (-1, -4.5)

20. (-1, -2.5)

Step-by-step explanation:

19.

Use the midpoint formula.

[tex]\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}[/tex]

Substitute the values.

[tex]\frac{-8+6}{2},\frac{-2-7}{2}[/tex]

Add/Subtract the numerators.

[tex]\frac{-2}{2},\frac{-9}{2}[/tex]

Divide.

-1, -4.5

20.

Use the midpoint formula.

[tex]\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}[/tex]

Substitute the values.

[tex]\frac{6-8}{2},\frac{5-10}{2}[/tex]

Add/Subtract the numerators.

[tex]\frac{-2}{2},\frac{-5}{2}[/tex]

Divide.

-1, -2.5

If covariance between two variables is near 0, it implies that:

Answers

Answer:

If the two random variables are independent, the covariance will be zero. It means they don't have any linear relationship.

Step-by-step explanation:

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