If a = 2 b=-3 then find the value of 2a - 4b?

Answers

Answer 1

Given:

a=2b=-3

Question:

2a - 4b

Step by step explanation:

Step 1:

2×2-4×(-3)

Step 2:

4-4(-3)

Step 3:

4+12

Step 4:

16

So 16 is correct answer

hope it helped you :)

Answer 2

Answer

16

Step-by-step explanation:

2×2-4×-3=

4+12=

16


Related Questions

I not sure how to find the value of the letters ​

Answers

Answer:

a = 31°

b = 66°

Step-by-step explanation:

Reason for the answer to a:

It is an alternate angle. So, a = 31°.

Reason for the answer to b:

It is also an alternate angle. So, b = 35° + 31° = 66°.

7(1 - 2n) < 33 - n

solve the inequality
show work

Answers

Answer:

n > -2

Step-by-step explanation:

7(1 - 2n) < 33 - n

7 - 14n < 33 - n

Subtract 7

-14n < 26 - n

Add n

-13n < 26

Divide by -13

n > -2

Answer:

n > -2

Step-by-step explanation:

Distribution property:

7 - 14n < 33 - n

Bring n over:

7 - 13n < 33

Bring 7 over:

-13n < 26

n > -2


[tex](8 + 4 + 3) + (6 + 5 + 11) = [/tex]

Answers

Answer:

= 37

Step-by-step explanation:

(8+4+3) + (6+5+11)

= 15 + 22

= 37

In the given figure, PQ=PR and QS is the bisector of angle PQR. If angle PQS=30°, find angle PSQ.

Answers

Answer:

90°

Step-by-step explanation:

PQ=PR ⇒

∠PQR = ∠PRQ

QS is the bisector of angle PQR ⇒

∠PQS= ∠RQS

If angle PQS=30°, find angle PSQ

∠PQS=30° ⇒

∠PQR = 2*∠PQS = 2*30° = 60°

As ∠PQR = 60°,

∠PRQ = 60° and ∠QPR = 60° as remaining angle

So,

∠PSQ = 180° - (∠QPR + ∠PQS) = 180° - 90° = 90°

I need help knowing which graphs represent that y is a function of x

Answers

Answer:

B, C, F

Step-by-step explanation:

The choices B, C, and F are right because if you do the Vertical line test, the vertical line only intersects one point in the graph. The function only has one output value for each input value.

what's the distance between (-14,-18) and (-25,-23)

Answers

Answer:

the answer is 12.08

Step-by-step explanation:

Use the distance between point formula

Other than replacing the equal sign with some sort of inequality sign, what is the one big difference we need to keep in mind when solving a linear inequality?

Answers

Step-by-step explanation:

In response to this question,

When solving a linear equality, one difference that we must keep in mind other than replacement of = sign with some equality sign is that when we do multiplication or division with a negative number, we are then required as a must to change the direction of the inequality sign.

Factor out gcf
16x5 – 12x3

Answers

Answer:

(16 and 5 = gcf of 1) 12 and 3 = gcf of 3

Step-by-step explanation:

divid both to find the answer

slope 5/6, passes through (12,4)

Answers

Answer:

y= 5/6x -6

Step-by-step explanation:

[tex]m =\frac{5}{6} \\(12,4)=(x_1,y_1)\\\\[/tex]

Substitute values into point slope form

[tex]y-y_1 =m(x-x_1)\\\\y - 4 = \frac{5}{6} (x-12)\\\\y-4 = \frac{5}{6} x -10\\\\y=\frac{5}{6} x -10+4\\\\y = \frac{5}{6} x -6[/tex]

The equation of the line that has a slope of 5/6 and passes through (12, 4) will be y = 5/6) x - 6.

What is a linear equation?

A relationship between two or more parameters that, when shown on a graph, produces a linear model. The degree of the variable will be one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

The slope of the line is 5/6. Then the equation of the line will be

y = (5/6)x + c

The equation of the line is passing through (12, 4), then the value of c will be

4 = (5/6) 12 + c

4 = 10 + c

c = -6

Then the equation of the line will be y = (5/6)x - 6.

More about the linear equation link is given below.

https://brainly.com/question/11897796

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y=2x+3 help please ...

Answers

Answer:

x=-3/2

y=3

Step-by-step explanation:

i hope this helps

Answer:

x=2x+3 Improper question not enough details The only answer can be found right now is 3x+3

Step-by-step explanation:

Combine like terms and give me brainliest please

Round the following whole number to the nearest thousand.
9474

Answers

Answer:

9,000

Step-by-step explanation:

9474

Locate the thousands place:

9474

Check the number to the right:

9474

If the number is greater than or equal to 5, we round up. If the number is less than or equal to 4, we round down.

Since there is a '4', we round down.

9474 ≈ 9000

Hope this helps.

x-6y<-12 in slope intercept form

Answers

X-6y<-12 in slope intercept form is y > 1/6X + 2

Approximately 2,094,800 people took a
vacation to a state park this year. 25
years ago 158,975 people vacationed to
state parks. Approximately how many
more people visited the park than 25
years ago?

Answers

Answer: 1935825

Step-by-step explanation:

please help ill mark branilest

Answers

I think it's the third choice :)) the one you currently have

It is the third one you already have it good job

g(x)= 2x-4
f(x)= -3x-4
Find (g • f)(x)

Answers

Answer:

Step-by-step explanation:

(2x - 4)(-3x -4)

-6x^2 - 8x + 12x + 16

-6x^2 + 4x + 16

Sparkle Cleaners uses 2 3 of a jug of window cleaner in 3 weeks. How much window cleaner do they use in 1 week? Simplify your answer and write it as a proper fraction, mixed number, or whole number.

Answers

Answer:

7⅔ window cleaner

Step-by-step explanation:

23 =3w

x= 1w

3x =23

x= 7⅔ window cleaner

-5x + 3 = 8x + 9 – 3

Answers

[tex]\text {Hi There! The answer to your problem is}[/tex]

[tex]\fbox {x=-3/13}[/tex]

[tex]\text {Your 1st Step will be to Simplify the Equation}[/tex]

[tex]\text {-5x+3=8x+9+-3}[/tex]

[tex]\text {-5x+3=(8x)+(9+-3) (Combine Like Terms)}[/tex]

[tex]\text {-5x+3=8x+6}[/tex]

[tex]\text {The Next Step is to Subtract 8x}[/tex]

[tex]\text {-13x+3-3=6-3}[/tex]

[tex]\text {-13x=3}[/tex]

[tex]\text {The Final Step is to Divide by -13}[/tex]

[tex]\text {-13x/13=3/-13}[/tex]

[tex]\text {x=-3/13}[/tex]

[tex]\text {Best of Luck!}[/tex]

[tex]\text {-LimitedX}[/tex]

Please help me I am confused- qwq​

Answers

$162.50 because if you add the percentages together, you get 35%

If you subtract 35% off of 250, you get 162.50

Gina has 2/3 pounds of apples. Jane has 3/5 pound of apples. Gina and Jane want to combine their apples to make an apple pie. The recipe calls for 1 1/2 pounds of apples. How many pounds of apples do they need for their pie? Show all work.

Answers

Answer:

Step-by-step explanation:

1. 3x5=15

2. 2x5=10 and 3x3=9

3 10/15 + 9/15= 19/15 or 1 and .3 so they need approx .2 more pounds

What angle is exactly 90 degrees?
7

Answers

Answer:

a Right angle is an angle of exactly 90 degrees

Answer:

A right angle is exactly 90 degrees

Step-by-step explanation:

A right angel is like an L pretty much

plz mark brainest, trying to get to next rank and only need two more.

if de = 6x , EF =4x, and df =10 what is DE

Answers

Answer: 6

Step-by-step explanation:

Given DE, EF and DF, we know that DE and EF make up DF. We add DE and EF and set it equal to DF.

6x+4x=10                 [add]

10x=10                      [divide both sides by 10]

x=1

Now that we know x=1, we can plug that into DE.

6(1)=6

Now, we know that DE is 6.

in grouped data each of the group is called? ​

Answers

Answer:

The class interval.

In a group data each group is called class interval.

Construct a square whose area is
36 cm²

Answers

have each side be 6 cm
Squares have equal sides and 6^2 = 36

The human resource department at a certain company wants to conduct a survey regarding worker benefits. The department has an alphabetical list of all 7148 employees at the company and wants to conduct a systematic sample of size 70.

Answers

Answer:

The answer is "K= 102"

Step-by-step explanation:

Given:

Number of employees = 7128

sample size =70

k=?

Formula:

[tex]\to K= \frac{\text{Number of employees}}{\text{sample size}} \\\\[/tex]

        [tex]= \frac{7148}{70} \\\\= 102.11\ \ \ \ or \ \ \ 102[/tex]

You deposit $6000 in an account earning 8% interest compounded monthly. How much will you have in the account in 15 years?

Answers

Answer:

13,200

Step-by-step explanation:

6000/100=60

60x8=480

480x15=7,200

6,000+7,200=13,200

If the initial amount is $6000 , rate of interest 8% then after 15 years the amount willbe $19957.218.

What is compound interest?

Compound interest is the interest calculated on the principal and the aggregate interest. It may be copounded annually,semi annually, monthly, bimonthly,etc.

How to calculate interest?

We have been given that the deposit is $6000,rate is 8% which is compounded monthly.

So effective rate of interest will be 8/1200=0.0067.

n will be 15*12=180

The sum after 15 years=6000[tex](1+0.0067)^{180}[/tex]

S=6000[tex](1+0.0067)^{180}[/tex]

Take log both sides.

log S=log 6000[tex](1+0.0067)^{180}[/tex]

log S=log 6000+log [tex](1+0.0067)^{180}[/tex]

log S=log 6000+180 log (1.0067)

log S=3.7781+180*0.0029

log S=3.7781+0.522

log S=4.3001

S=AL (4.3001)

S=19957.218

Hence if the initial amount is $6000 , rate of interest 8% then after 15 years the amount willbe $19957.218.

Learn more about compound interest at https://brainly.com/question/24924853

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which of these comparisons is correct?

A. -2 < -5
B. 0 > 2
C. 4 > -4
D. -6 < -5

Answers

the comparison that is correct is c.

What is £36 in the ratio 2:1:1

Answers

Answer:

$18, $9, $9

Step-by-step explanation:

First get the sum of all the ratios 2+1+1 =4

Divide $36 by the sum of the ratios $36/4 =$9

Multiply each ratio by $9 to get each of the amount.

I. 2x$9= $18

ii. 1x$9= $9

Iii. 1x $9 = $9

If x2 + 3x + 7 is divided by x + 2, then what is the remainder?

Answers

Answer:

ok but thx for the points

Step-by-step explanation:

The remainder when the polynomial x² + 3x + 7 is divided by x + 2 is 5.

A polynomial is an expression consisting of the operations of addition, subtraction, multiplication of variables.

The remainder theorem states that for a polynomial, f(x) divided by a linear polynomial , x - a, the remainder is equal to f(a).

Given the polynomial; f(x) = x² + 3x + 7, since it is divided by x + 2, hence:

x + 2 = 0

x = -2

f(-2) = (-2)² + 3(-2) + 7 = 5

Hence the remainder when the polynomial x² + 3x + 7 is divided by x + 2 is 5.

Find out more at: https://brainly.com/question/19030073

Find the perimeter of the figure below, in feet.
5.1 ft
14.8 ft
14.8 ft
14.8 ft
19.9 ft
10 ft
34.7 ft
24.8 ft
14.8 ft
5.1 ft
(Note: diagram is NOT to scale)

Answers

Answer:

158.8ft

Step-by-step explanation:

Jessica makes overtime pay when she works more than 40 hours in a week. So far this week she has worked 29 hours. She will continue to work h hours this week. Write, solve, and graph an inequality to show the values of h that will allow Jessica to earn overtime pay.

Answers

Answer:11 more hours

Step-by-step explanation:

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