if a= 2, b= -3 and c= 4 evaluate ab-bc ​

Answers

Answer 1

Answer:

ab - bc = 6

Step-by-step explanation:

COMPUTATION:

ab - bc = ?

(2 x -3) - (-3 x 4) = ?

(-6) - (-3 x 4) = ?

(-6) - (-12) = ?

-6 + 12 = 6

Hope this helps!


Related Questions

whats 3+9+3+6+5+8+4+3+9-23-1 divided by 2=

Answers

Answer:

13

Step-by-step explanation:

=26/2

=13

hope u got it

need help doing my homework !! i will mark you brainliest

Answers

-x - 3
work out the sum of the x’s together first and then work out what -4 + 1 is.

Click all of the multiples of 3 that are greater than 3 shown in the table. Don’t worry if a number has already been crossed out, go ahead and click it if it is a multiple of 3 that is greater than 3. (Choose 5)

12
6
15
7
18
9

Answers

Answer:

12 15 18 9 7

Step-by-step explanation:

Answer:

12, 6, 15, 18, 9

Step-by-step explanation:

Multiples of 3 greater than 3 are:

12 = 3*46 = 3*215 = 3*518 = 3*69 = 3*3

The only odd number is 7

What is the first step in solving 0.35 + 0.22x = 1.67?

Answers

Answer:

6

Step-by-step explanation:

0.22 x=1.67-0.35=1.32

then x=1.32/0.22=6

Answer:

You do reverse operation, so you subtract 0.35 on each side. You will end up with 0.22x = 1.32

Step-by-step explanation:

Find the slope from this table
Show me how please and thank you

Answers

Answer:

2

I hope this helps you...

1
What is the solution to the equation
=
X+ 3
?
2x4
x = -3
x = -3 and x = 0
ооо
x = 0 and x = 3
O x= 3

Answers

Answer:

X+3 = 3x

2x4 = 8

_3x

check out the remaining answer

In 2016, the cost of 2 ounces of pure gold was $2,640. How much did it cost for 1 ounce of pure gold?

Answers

Answer:

1320

Step-by-step explanation:

because half of 2640 is 1320

Answer: since two onces is 2,640 to find one once it would be 2,640 divide by 2 find the price of once once

Step-by-step explanation: 2,640/2 to find 1 once it would 1,320/1 or just 1320

the x-intercept was substituted incorrectly

write the correct equation

an equation of the parabola is y =__________​

Answers

Answer:

Step-by-step explanation:

let the eq. of parabola be

y=ax²+bx+c

points (-1,0),(2,0),(3,4) and (0,-2) lie on it.

0=a-b+c

0=4a+2b+c

subtract

3a+3b=0

a=-b

4=9a+3b+c

-2=0+0+c

c=-2

a-b-2=0

-b-b-2=0

-2b-2=0

b+1=0

b=-1

a=-b=-(-1)=1

eq. of parabola is

y=x²-x-2

Help plz I need it it’s hard

Answers

Answer:

the awnser is 2

Step-by-step explanation:

I need someone to explain to me how to solve this, because I need to show my work.

Answers

so to find the answer you have to know what the mixture is, what the trend is,

on day one he used 4 cans of blue and 6 cans of yellow

day two, 6 blue and 9 yellow

both are divisible by 2 and 3 respectively, additionally when you divide the number of blue cans Marc used by the number of yellow cans each day you get a sum of .66

those are the trends

so therefore day three would have the same trend.


Now on day three Marc will have 4 cans of blue paint and 5 cans of yellow paint remaining, what I did here to find the answer was divide numbers under 4 and 5 until I got a division problem that equaled .66

my answer was 2 blue cans and 3 yellow.

The answer is that on day three the highest number of cans that Marc can mix to get his favorite shade of green is 2 blue and 3 yellow

M is the midpoint of PQ. MQ = 5x + 8 and PQ = 6x + 56, find PM.

(4 Points)

Enter your answer

Answers

If M is the midpoint of PQ. MQ = 5x + 8 and PQ = 6x + 56, then PM = 58

Since M is the midpoint of PQ

PM  +   MQ   =   PQ................(*)

Given:

PQ  =  6x + 56

MQ  = 5x + 8

Substitute PQ and MQ into equation (*)

PM   +  (5x + 8)  =  6x  +  56

Collect like terms

PM   =  6x  +  56  -   (5x  +  8)

Expand the equation using the distributive rule

PM  =  6x  +  56  -  5x  -  8

PM  =  6x  -  5x  +  56  -  8

PM  =  x  +  48.........(**)

Equate MQ and PM

MQ   =   PM

5x  +  8    =   x  +  48

Collect like terms

5x  -  x  =  48  -  8

4x   =   40

Divide both sides by 4

4x / 4   =  40/4

x   =   10

Substitute x = 10 into equation (**)

PM  =  x  +  48

PM  =  10  +  48

PM   =  58

Learn more here: https://brainly.com/question/23460890

For a function f, we are given that f(8) = 1 and f'(8) = 2.
What's the equation of the tangent line to the graph of f at x = 8?

Answers

Answer:

Step-by-step explanation: y

'

(

x

)

=

1

f

'

(

f

1

(

x

)

)

y

'

(

8

)

=

1

f

'

(

f

1

(

8

)

)

y

'

(

8

)

=

1

f

'

(

2

)

y

'

(

8

)

=

1

3

(

2

)

2

1

y

'

(

8

)

=

1

12

1

y

'

(

8

)

=

1

13


Simplify the expression by combining like terms. Then,
evaluate the expression by substituting the given values
for the variables.
x=5 and y=2
y^2 + xy – 7y^2

Answers

Answer:

-14

Step-by-step explanation:

The like terms in this equation is y^2 and -7y^2 so combining the two the equation becomes:

xy-6y^2

Then we substitute the values in:

5×2-6×2^2 = -14

If i get good grades in 8th grade will it affect the classes I get in 9th grade?

Answers

Answer:

It will result if you have advanced classes or get an Ap class

Step-by-step explanation:

It will not affect your 9th grade..

Yet, you should work hard to achieve your aim and gain knowledge not for getting better marks.

Help me on this please

Answers

Answer:

I think it's the answer.

Domain - { 1, 9, 0 }

Range - { -2, 9, 1, 2 }

Not sure

domain is the x values and range is the y
domain : 1,9,0,9,1
range : -2,9,-2,1,2

How many songs can you play from 6:00 to 10:00

Answers

120 at most because songs are mostly 2 minutes

Answer:

Using common knowledge each song is about 2 minutes and 50 seconds, so you can listen to about 100 songs, maybe more

Step-by-step explanation:

6-10=4hrs

4 hours divided by 2:50=

4 hours= 280 Minutes, 2:50 can be rounded to 3min, 280/3=93.3333333333

In other words, you can estimate to 94.

So the answer should be around 94

If possible brainliest?

solve the compound inequality-8 < 5x + 7 <2

Answers

Answer:

-3 < x ≤ -1

Step-by-step explanation:

-8 < 5x + 7 ≤ 2

First, subtract 7 from all sides of the inequality:

-8 - 7 < 5x + 7 - 7 ≤ 2 - 7

-15 < 5x < -5

Divide all sides by 5 to isolate x:

-15 ÷ 5 < 5x ÷ 5 ≤ -5 ÷4

-3 < x ≤ -1

Hope this helps!

Explain why 0.02 x 0.3 = 0.006. Answer in at least 2 complete sentences.​

Answers

Answer:

.02*.03=.006 because when you multiply decimals after you get your answer you need to move the decimal point over 3 spaces. You do this because when you move the decimal point out three to multiply it you have to move it back in three after you get your solution, or else it is incorrect.

Step-by-step explanation:

help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


WHAT IS THE BLANK The formula C = πd gives you the ______ of a circle.

Answers

Circumference give me brainliest pls

Exit
What is the decimal equivalent of 4/5

Answers

Answer:

0.8

Step-by-step explanation:

to find the decimal equivalent we must get the denominator to 100

to do that we must multiply it by 20, 4/5 * 20/20 is 80/100

80/100 is also 80%, which is also 0.80 (which can be simplified to 0.8)

The daily consumption C (in gallons) of diesel fuel on a farm is modeled by C = 30.3 + 21.6 sin(2Ď€t/365 + 10.9) where t is the time (in days), with t = 1 corresponding to January 1. What is the average daily fuel consumption? Which term of the model did you use? Explain.

Answers

The question is an illustration of the sine function.

The average daily fuel consumption is 30.3The vertical shift represents the average daily fuel consumption

The function is given as:

[tex]\mathbf{C = 30.3 + 21.6\sin(\frac{2\pi t}{365} + 10.0)}[/tex]

A sine function is represented as:

[tex]\mathbf{y = a\sin(bx - c) + d}[/tex]

Where d represents the vertical shift.

In this case, d represents the average rate

So, the average daily fuel consumption is 30.3

The term that represents the average daily fuel consumption is the vertical shift of the sine function.

Read more about sine functions at:

https://brainly.com/question/12015707

Austin's town voted on a new speed limit. 90% of the 20 votes were in favor of the new speed limit. How many votes were in favor?

Answers

Answer:

18

Step-by-step explanation:

times 20 by 0.90

20*0.90=18

What is quivalent to 5/8?

Answers

Answer:

10/16 is also equivalent

Answer:

0.625

Step-by-step explanation:

All you have to do is put it in decimal form.

Jackson’s mom limits the amount of time he is allowed to play video games. After Jackson plays for 9minutes, his mom tells him that he has used up 30% of his time. How many more minutes can Jackson play before he uses all of his time?

Answers

Answer:

21 minutes

Step-by-step explanation:

30%=9

10%=3

100%-30%=70%

7×10%=70%

3x7=21

=21minutes

Find the value of x using the figure to the right.

Answers

Answer:

yes it may be 3

Step-by-step explanation:

Factorize
[tex]3x - 5 \sqrt{x} = 2[/tex]
Please help me solve this​

Answers

final answer is *drumroll******

x=4

helpppppppppp me plsssssssssssssssss

Answers

Quick answer: The fourth option, (-2, -1) and (-8, 3)

Explanation: so for this equation we are determining which coordinates are in the graph, now it wants us to be looking at q—>N so we can immediately rule out A and B since they would be on the line past Q in the wrong way, now we look at the second pair of numbers since the first ones are the same for C and D, we see that Cs is at 3, -8 and since this is both past Q to the right and it doesn’t lie on the line we can conclude that the answer is D. We can the check this by looking at the 2 points on the line.

Please mark brainliest if this helped. :)

3x²-x+1 is a factor of ax⁴+bx³+12x² - 6x + 1 . Then a-b equals​

Answers

Answer:

a-b = 31     (a ≠ b)

Step-by-step explanation:

(3x²-x+1)(px²+qx+1) = ax⁴+bx³+12x² - 6x + 1

3px⁴+(3q-p)x³+(3+p-q)x²+(q-1)x+1 = ax⁴+bx³+12x² - 6x + 1

q-1 = -6             q = -5

3+p-q = 3+p-(-5) = 8+p = 12             p = 4

b = 3q-p = 3*(-5) - 4 = -19

a = 3p = 3*4 = 12

a-b = 12 - (-19) = 31

Simplify your perimeter expression as much as possible.
C.
x2
JR
Оа
b
4y + 4x + 4
2x + 4y + 2
2
C с

Answers

Answer:

1019191991

Step-by-step explanation:

08899988777777777

G(x)=4x^2+9x ; find g(3x)

Answers

Answer:

12xto the 3 + 27x squared

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