4(a)+8-a,if a=-2 evaluate each expression

Answers

Answer 1

Answer:

2

Step-by-step explanation:

4(a)+8-a

Combine like terms

4a-a +8

3a+8

Let a = -2

3(-2)+8

-6 +8

2


Related Questions

mp rs 700 and sp rs 524 find discount step by step.

Answers

Cost price=CP=700Sold price=SP=524

[tex]\boxed{\sf Discount=CP-SP}[/tex]

[tex]\\ \sf\longmapsto Discount=700-524[/tex]

[tex]\\ \sf\longmapsto Discount=176[/tex]

Answer:

cost price(cp)=rs.700

sold price(sp)=rs.524

discount =cp-sp

discount =700-524

discount =rs.176

The lines below are perpendicular. If the slope of the green line is ž, what is
the slope of the red line?
-5
5
m =

Answers

Answer:

B or (-2/3)

Step-by-step explanation:

Perpendicuar lines have negative inverse slopes SO

3/2 ---> -2/3

irrational numbers on a number line pls help!!

Answers

You need to find simple values close to the actual ones asked.

sr(16) = 4 so -sr(17) is slightly below than -4

cr(8) = 2 because 2x2x2=8 so cr(9) is slightly above 2

cr(1) = 1 and cr(8) = 2 so cr(4) is between 1 and 2

Try the others yourself.
-

the perimeter The area of squre Plat is 100 m² Find at the plot o a​

Answers

Answer:

perimeter=40m

Step-by-step explanation:

PERIMETER=(AREA ROOT)*4

                   =10*4=40m

On a coordinate plane, a parabola opens up. Solid circles appear on the parabola at (negative 4, 14), (negative 3, 9.5), (negative 2, 6), (0, 2), (1, 1.5), (2, 2), (4, 6), (5, 9.5), (6, 14).
Which is the rate of change for the interval between 2 and 6 on the x-axis?

Answers

Answer:

Step-by-step explanation:

The rate of change for the interval between x = 2 and x = 6 is simply asking you for the slope of the line that connects these 2 coordinates. If you were in calculus, you could find the instantaneous slope at any point on this parabola, but you're not quite that lucky yet, so we will go about it the only way we can:

by finding the slope. Remember, that slope is the same thing as rate of change.

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex] and filling in:

[tex]m=\frac{14-2}{6-2}=\frac{12}{4}=3[/tex]

Leo took part in a diet program. He weighed 190 pounds at the start of the program. During the first week, he lost 4.3 pounds. During the second week, he had lost 2.8 pounds. The third week, he gained 0.7 pounds. The fourth week, he lost 1.9 pounds. What did Leo weigh at the end of the fourth week?

Answers

Answer:

Leo's weight at the end of the fourth week = 181.7 pounds

Step-by-step explanation:

Leo's initial weight = 190 pounds

First week = lost 4.3 pounds

New weight = 190 pounds - 4.3 pounds

= 185.7 pounds

Second week = lost 2.8 pounds

New weight = 185.7 pounds - 2.8 pounds

= 182.9 Pounds

Third week = gained 0.7 pounds

New weight = 182.9 pounds + 0.7 pounds

= 183.6 pounds

Fourth week = lost 1.9 pounds

New weight = 183.6 pounds - 1.9 pounds

= 181.7 pounds

Leo's weight at the end of the fourth week = 181.7 pounds

Alternatively

New weight = initial weight - first week - second week + third week - fourth week

= 190 - 4.3 - 2.8 + 0.7 - 1.9

= 181.7 pounds

Carrie rolls two 1-6 number cubes. How many outcomes are possible?​

Answers

Answer:

36

Step-by-step explanation:

The first dies has 6 possible outcomes

1,2,3,4,5,6

The second die has 6 possible outcomes

1,2,3,4,5,6

6*6 = 36

There are 36 outcomes

First Sample space

[tex]\\ \sf\longmapsto S=\left\{1,2,3,4,5,6\right\}[/tex]

[tex]\\ \sf\longmapsto |S|=6[/tex]

Now There are two cubes mean n=2

[tex]\\ \sf\longmapsto |S|^n[/tex]

[tex]\\ \sf\longmapsto 6^2[/tex]

[tex]\\ \sf\longmapsto 36[/tex]

HELLLPPP 31 kilograms is the same as how many pounds? Hint: 1 kg = 2.2 lb Round your answer to the nearest tenth.​

Answers

Hi! I'm happy to help!

To solve this, we need to turn all the kilograms into pounds. We know that to turn 1 kg into a pound, you multiply the amount of kilograms by 2.2.

Knowing this, we can multiply our 31 kilograms by 2.2.

31×2.2=68.2

This means that 31 kilograms is equal to 68.2 pounds.

I hope this was helpful, keep learning! :D

What is the solution of ?

Answers

Answer:

The answer to your question would be x=12. Equation is worked out below

Step-by-step explanation:

5 /2 x−7= 3 /4 x+14

5 /2 x-3/4x − 7 =  3 /4 x-3/4x +14

7/ 4 x−7=14

7 /4 x−7+7=14+7

7/ 4 x=21

do the opposite of 7/4x (division)

7/4 / 7/4x = 21 / 7/4

4/7 / 7/4x (cross each other out) = 21 / 4/7

x=12

Answer:

[tex] \frac{5}{2}x - 7 = \frac{3}{4} x + 14 \\ \frac{5}{2} x - \frac{3}{4} x = 14 + 7 \\ \frac{7}{4} x = 21 \\ x = \frac{21 \times 4}{7} \\ x = 12[/tex]

I hope I helped you^_^

order the following expressions by their values from least to greatest

Answers

N-Q, N, Q-N

Explanation: N=-2/Q=1
Equations:
-2-1=-3(N-Q)
-2(N)
1- -2=3(Q-N)

which letter has horizontal not vertical symmetry H, W, Y, E

Answers

The best answer out of all of that is W if I’m right

I thing W,Y is righ am i right.

i need B.

EMERGENCY THANK YOU VERY MUCH!!!

Answers

Answer:

A. Mean = 9.7 (take all the numbers and divide by 10)

Mode = 12

Range = 5

B. Unsure. Would suggest either Mean - average and can tell when bus is running late or early or Mode - highest and lowest time combined

the prouduct of any two irrational number is​

Answers

Answer:

mostly rational but sometimes irrational

The product of any two irrational number can be rational or irrational depending on the two numbers.

Problem 2 Find the mBC.

Answers

Answer:

38º

Step-by-step explanation:

<BAC is a central angle. The corresponding arc, BC will be equal to the measure of the central angle.

So mBC = 38º

The product of 2 and a number x is 34.

What is the value of x?


x=54

x=38

x=114

x=32

Pls help me with this guyssss plssss ( I will give brainliest too!) :)

Answers

Answer:

x = 17

Step-by-step explanation:

The product of 2 and a number x is 34 =

2x = 34

x = 34/2

x = 17

Answer:

x=17

Step-by-step explanation:

Product means multiply  is means equals

2x = 34

Divide each side by2

2x/2 = 34/2

x = 17

Can someone explain this / answer, Its a picture

Answers

Answer:

option c is the correct answer (l=1 cm and w=42cm)

Step-by-step explanation:

length(l) = 1.00cm

width(w)= 42.00 cm

ACCORDING TO FORMULA

Area of rectangle = l×w

=1 cm × 42 cm

= 42cm^2

Work out the value of 10^2 - 4^3
Give your answer as a power of 6.

Answers

Answer:

6^2 = 36

Step-by-step explanation:

10^2 = 10 * 10 = 100

4^3 = 4 * 4 * 4 = 64

10^2 - 4^3= 100 - 64 = 36 = 6^2

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

[tex]6^2[/tex]

»»————- ★ ————-««  

Here’s why:  

⸻⸻⸻⸻

[tex]\boxed{\text{Calculating the answer...}}\\\\10^2 - 4^3\\---------------\\\rightarrow 10^2 = 100\\\\\rightarrow 4^3 = 64\\\\\rightarrow 100 - 64 = \boxed{36}\\\\\text{Since we know that '36' is a perfect square, we can rewrite our answer as: } \boxed{6^2}[/tex]

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER PLS GIVE ME A STEP BY STEP EXPLANATION!!

Answers

Answer:

(-5,2)

Step-by-step explanation:

Answer:

(5 , 2)

Step-by-step explanation:

F(-5 , 2)

After reflection F'(5 , 2)

The rule for reflection over y-axis is

Original point(x , y)   :  After reflection:  (-x,y)

x-coordinate will change its sign and y-coordinate remains same

Please help asap!!!!

Answers

Answer:

1. B,D

2. D

3. C

4. J

Step-by-step explanation:

PLS HELP ASAP


What are the possible rational zeros of f(x) = x4 + 2x3 − 3x2 − 4x − 12?

Answers

I don’t know I’m sorry I got 6x and I don’t think that’s right

Amanda teaches the art of quilling to 4 students. These students each teach the art of quilling to 4 other students. This process continues through 3 more generations.

Answers

4x4=16 16x3=48 so I think the answer is 48

Translate this sentence into a equation. The sum of 22 and chau’s are is 54. Use the variable c to represent chums age

Answers

Answer:

22+c=54

Step-by-step explanation:

22 + his age =54

Plzzz help 10 points and will mark brainiest
hint: answer is a fraction

Answers

Answer:

1/3

Step-by-step explanation:

The left side of FA is 6 units.

The left side of FB is 2 units.

From 6 to 2, you divide by 3.

Same for the top,

FA is 9 units, while FB is 3 units.

I hope this helps!

pls ❤ and mark brainliest pls!

What is the slope of the line?

Answers

Answer:

A number that describes both the direction and the steepness of the line is known as slope of the line .

The function m is given in three equivalent forms.
Which form most quickly reveals the zeros (or "roots") of the function?
Choose 1 answer:
m(x) = 2(x +4)^2 – 8
m(x)= 2x^2 + 16x + 24
m(x)=2(x+6)(x+2)

Write one of the zeros

Answers

Definitely C, the last one

The greatest number which on dividing 1657 and 2037 leaves nemainder 6 ands respectively is?​

Answers

Answer:

It would be 127

Step-by-step explanation:

We see that they only have 127 common in their prime factorization. Hence, HCF(1651, 2032) = 127. Hence, the greatest number which divides 1657 and 2037 leaves a remainder of 6 and 5 respectively is 127.

Find the volume of the prism.

Answers

Answer:

11,968

Step-by-step explanation:

I'm not sure, but I think its 11,968

A paper factory needs to ship an order for 4,500 sheets of yellow paper. The factory will put 50 sheets in each box. How many boxes will the paper factory need to us

Answers

Answer:

90

Step-by-step explanation:

If they put 50 sheets per box, then it is just simple division.

4,500 divided by 50 is 90.

Answer:

90 boxes

Step-by-step explanation:

They need to ship 4500 sheets of paper.

They put 50 pages in each box.

# of boxes they will need = amount of paper / amount of paper they put in each box

# of boxes they will need = 4500 / 50 = 90

which of the following equations is an example of direct variation?

Answers

Answer:

C

Step-by-step explanation:

[tex] \frac{x}{3} [/tex]

PLEASE EXTREMELY URGENT!!!
what is the solution to -2(8 x - 4) < 2x + 5

o x>1/6
o x<1/6
o x>6
o x<6

Answers

Answer:

1/6 <x

Step-by-step explanation:

-2(8 x - 4) < 2x + 5

distribute

-16x+8 < 2x+5

Add 16x to each side

-16x+16+8 < 2x+16x+5

8<18x+5

Subtract 5 from each side

8-5 < 18x+5-5

3<18x

Divide by 18

3/18 <18x/18

1/6 <x

I think it migth be the first one

give me brainlieSt

it is 1/6

Other Questions
What is the value of y? If the corporate human resource function in an organization is primarily concerned with selecting and training managers for foreign assignments, developing appropriate compensation packages for those managers, and handling adjustment issues when the manager is reassigned back home, it is evident that the organization has adopted the _____. a. ethnocentric staffing model b. polycentric staffing model c. regiocentric staffing model d. geocentric staffing model Joe is four years older than Tim. Ten years ago, Joe was twice as old as Tim. Find their ages now? how does development gather speed find the sum or difference of the polynomials. Write your answer in descendingorder.(-3x2 + 2x + 1) + (-8x2 + 3x + 2) the sum of two positive consecutive integers is x. in terms of x, what is the value of the smaller of these two integers? Please help me!!!!! You have to match the slope of each line 3) 3. The Mahicans lived primarily among the: (10pts)northerncoloniesmiddle coloniessoutherncoloniesnone of theabove 1. Saang bansa nagmula ang disenyong batikA.ChinaB.Indonesia C.JapanD.Pilipinas2.Saang bansa nagmula and disenyong sutla?A.ChinaB.IndonesiaC.JapanD.Pilipinas3.Anong bansa ang mga pang-itaas na klaseng tela ay umaasa sa sutla isang materyal na ipinakilala mula sa korea at TsinaA.ChinaB.IndonesiaC.JapanD.Pilipinas Jack was camping. He put a can of baked beans on his campfire, without opening the lid. The can exploded. What happened? What is the simplified form of the following expression?5 58-18-2-8202.12o 5.82o 9.2O 152 what are the points for the equation y +2 = - 3/4 (x+4) Use the piecewise function to evaluate points f(5), f(0), and f(2).A) f(5) = 11, f(0) = 0, and f(2) = 1B) f(5) = 11, f(0) = 1, and f(2) = 6C) f(5) = 15, f(0) = 0, and f(2) = 6D) f(5) = 11, f(0) = 0, and f(2) = 3PLEASE HELP! :) GIVING BRAINLIEST!!!Which best supports the sentence?In the novel, The Lion, The Witch and the Wardrobe, C. S. Lewis created a world that was a metaphor for Christianity.1. C. S. Lewis wrote many books, in addition to the Chronicles of Narnia.2. In the novel, Aslan, the lion, symbolizes Jesus in power, love, and sacrifice.3. Other novels like Pilgrims Progress are also intriguing. 4. Novels often include imagery and figurative language. . Students have a lot harder time in school than the teachers. please helping me guys Help Ill mark you!! Which of the following shows strong characterization?A. Paul hated his job. He worked in a dimly lit office in a tiny cubical. His job was the same as everyone elses in the office, going through lines of codes looking for errors. No one talked to each other; they just sat and suffered in silence.B. Andre touched the scar over his eye. He gained that scar three years ago protecting the king. Tonight, he will gladly gain some more. For the good of the country he loved so much, he was willing to endure any scar, or much worse.C. The twins, Ian and Alex were identical. They looked the same. They sounded the same. They did the same things. They even thought the same things.D. John woke up at the sound of the alarm. He got out of bed and headed to work, where he sat in traffic. There was nothing special about his car as opposed to the ones around him. So it was quite surprised it was his that was abducted by aliens. What best expresses the main idea of the passage A sample of oxygen occupies 1.00 L. If the temperature remains constant, and the pressure on the oxygen is decreased to one third the original pressure, what is the new volume