what is the value of this expression?

Answer:

If I'm not mistaked the mean should be bumbed up by five.

Step-by-step explanation:

Answer:

the difference is 429

Step-by-step explanation:

you round 689.7 to 690 the minus that by 261, then you get 429.

Answer:

429

Step-by-step explanation:

689.7 - 261 = 428.7

answer approximated is 429

Answer:

Please clarifly your question.

Step-by-step explanation:

What angle measurements are given? Are the numbers following it multiple choice? There isn't enough information.

Answer:

38°

Step-by-step explanation:

If supplementary -

180 = 60 + 40 + (x+42)

80 = x+42

x = 38

Answer:

1i : 0

1ii : 1

1iii : -1

1iv : 1

1v : 1

2i : -1

2ii : -13

2iii : -29

3i : -9

3ii : 3

3iii : 0

3iv : 1

4i : 8

4ii : 4

4iii : 0

5i : -3

5ii : 2

5iii : 0

5iv : 2

6i : -39

6ii : 15

6iii : 0

6iv : answering only the circled part : 12

7i : 10

7ii : -6

7iii : 11

7iv : 22

7v : -8

8i : 1000

8ii : -180

9 : -5

10 : 38

Answer:

1. (i) m - 2 = 2 - 2 = 0

1. (i) 3m - 5 = 3(2) - 5 = 6 - 5 = 1

1. (ii) 9 - 5m = 9 - 5(2) = 9 - 10 = – 1

1. (iii) 3m² - 2m - 7 = 3(2)² - 2(2) - 7 = 3(4) - 4 - 7 = 12 - 11 = 1

[tex]1.(iv) \: \frac{5m}{2} - 4 = \frac{5(2)}{2} - 4 = \frac{10}{2} - 4 = 5 - 4 = 1[/tex]

__o__o__

2. (i) 4p +7 = 4(-2) + 7 = -8+7= – 1

2. (ii) -3p² + 4p+7 = -3(-2)² + 4(-2) + 7 = -3(4) -8+7 = -12-8+7 = -20 +7 = – 13

2. (iii) -2p³-3p²+4p+7 = -2(-2)³ - 3(-2)² +4(-2) +7 = -2(-8) -3(4) -8 = 16-12-8=16-20= – 4

__o__o__

3. (i) 2x -7 =2(-1)-7= - 2 -7 = – 9

3. (ii) -x+2 = -(-1)+2= 1+2 =3

3. (iii) x²+2x+1 = (-1)²+2(-1)+1 =1 -2+1=2-2=0

3. (iv) 2x²-x-2= 2(-1)²-(-1)-2=2+1-2= 1

__o__o__

4. (i) a²+b² = (2)²+(-2)² =4+4= 8

4. (ii) a²+ab+b² = (2)²+(2)(-2)+(2)²= 4 -4+4= 4

4. (iii) a²-b² = (2)² - (-2)² = 4 - 4 = 0

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5. (i) 2a+2b = 2(0)+2(-1) = 0-2 = - 2

5. (ii) 2a² +b²+1 = 2(0)² + (-1)² +1 = 0+1+1 = 2

5. (iii) 2a²b+2ab²+ab = 2(0)²(-1) + 2(0)(-1)²+(0)(-1) = 0

5. (iv) a²+ab+2 = (0)²+(0)(-1)+2 = 2

__o__o__

6. (i) x+7+4(x-5) = x + 7 + 4x - 20 = 5x - 13 = 5(2) - 13 = 10 - 13 = - 3

6. (ii) 3(x+2)+5x-7 = 3x +6+5x -7 = 8x -1 = 8(2) -1 = 16 - 1 = 15

6. (iii) 6x+5(x-2) = 6x +5x -10 = 11x - 10 = 11(2)-10 = 22 - 10 = 12

6. (iv) 4(2x-1)+3x+11 = 8x - 4 +3x+11 = 11x + 7 = 11(2)+7 = 22+7 = 29

__o__o__

7. (i) 3x-5-x+9 = 2x + 4 = 2(3) +4 = 6+4=10

7. (ii) 2-8x+4x+4 = – 4x + 6 = - 4(3) +6= - 12+6= – 6

7. (iii) 3a+5-8a+1 = – 5a +6= - 5(-1) +6= 5+6=11

7. (iv) 10 -3b-4-5b = - 8b + 6 = -8(-2)+6= 16 +6 = 22

7. (v) 2a-2b-4-5+a = 3a -2b - 9 = 3(-1) - 2(-2) - 9 = - 3 + 4 -9 = - 12 +4 = – 8

__o__o__

8. (i) z³ - 3 (z-10) = (10)³ - 3(10-10) = 1000 - 3(0) = 1000

8. (ii) p²-2p-100 = (-10)² - 2(-10) -100 = 100 + 20 -100 = 20

__o__o__

9. 2x² +x - a = 5 ==> 2(0)² +(0)- a = 5 ==> 0 - a = 5 ==> -a=5 ==> a = – 5

___o__o__

10. 2(a²+ab)+3-ab ==> 2a² + 2ab +3 - ab ==> 2a² + ab +3 ==> 2(5)²+ (5)(-3) +3 = 2(25)- 15 +3 = 50-15+3 = 53-15 = 38

I hope I helped you^_^

Answer:

Step-by-step explanation:

Given equation:

Cross multiply and simplify:

or

Correct choice is C

[tex]\\ \sf\longmapsto \dfrac{x}{5}=\dfrac{x^2}{4x+2}[/tex]

[tex]\\ \sf\longmapsto x(4x+2)=5x^2[/tex]

[tex]\\ \sf\longmapsto 4x^2+2x=5x^2[/tex]

[tex]\\ \sf\longmapsto x^2-2x=0[/tex]

[tex]\\ \sf\longmapsto x(x-2)=0[/tex]

[tex]\\ \sf\longmapsto x=0\:or\:x=2[/tex]

Answer:

3^2=9

Step-by-step explanation:

please mark me as brainlest

Answer: 2 2 3 4 5

Step-by-step explanation:

Answer:

Hello I took the test the answer is -6(2x+3y+0.6)

Step-by-step explanation:

here's proof from k12 hope this helps

Answer:

it's 23

Step-by-step explanation:

because its 23

Answer:

D. 1/36

Step-by-step explanation:

yeah-ya.... right?

The distance between two points with the given coordinates in space is;

Distance = 17 units

We are given the coordinates;

(32, 12, 5)

(20, 3, 13)

d = √((x₂ - x₁)² + (y₂ - y₁)² + (z₂ - z₁)²)

From the equation given to us, we can see that;

x₁ = 32

x₂ = 20

y₁ = 12

y₂ = 3

z₁ = 5

z₂ = 13

d = √((20 - 32)² + (3 - 12)² + (13 - 5)²)

d = √(144 + 81 + 64)

d = √289

d = 17

Thus, the distance between the two points is 17 units

Read more at; https://brainly.com/question/20974053

Answer:

Step-by-step explanation:

Dining room:

length = 8 m = 8 *100 = 800 cm

width = 6m = 6 *100 = 600 cm

[tex]Number \ of \ tiles =\dfrac{area \ of \ the \ dinning \ room}{Area \ of \ a \ tile}\\\\[/tex]

                           [tex]= \dfrac{800 *600}{20*60}\\\\= 400 \ tiles[/tex]

Using the expected value, it is found that the mean of the distribution equals $0.1.

The probabilities of each outcome are:

Thus, the mean is given by:

[tex]E(Y) = 0.0000001(1000000) + 0.9999999(0) = 0.1[/tex]

Thus showing that the expected value is $0.1.

A similar problem is given at https://brainly.com/question/24855677

Answer:

The number is 17.

Step-by-step explanation:

Let x be the unknown number.

4 times the sum of a number plus 7 would be

4x + 7

44 less than the unknown number (x) would be

x - 44

Now we connect everything.

4x + 7 = x - 44

4x - x = -44 - 7

3x = -51

x = -17

The algebraic representation of the expression is 4(x + 7)  = x - 44

From the question, we have the following parameters that can be used in our computation:

four times the sum of a number and 7 is 44 less than the number

By definiton:

Sum means plus

Less than means minus

Using the above as a guide, we have the following:

4 * (x + 7) = x - 44

So, we have

4(x + 7)  = x - 44

Read mroe about expressions at

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Answer: 2  and 321 or  3  and 214

Step-by-step explanation:

One number is between 200-225.

Now, back up just a bit.  The product of the two numbers is 642.  Product comes from multiplying the two numbers.  So, if we divide 642 by the number that is between 200-225, we will get the other number.

 So, divide 200 into 642 and get 3 with a remainder of 42

     divide 225 into 642 and get 2 with a remainder of 192

This means that the other number must be either 2 or 3.  (note: this is because dividing by 200 gives the biggest value it could be and dividing by 225 gives the lowest value it could be -- think about sharing a bag of candy, dividing it between 2 friends gets each person the most candy and dividing it between more friends (3) gives each person less candy).

Well. if the other number is either 2 or 3, and the product of the two numbers is 642, the numbers must be either: 2  and 321 or  3  and 214

Answer:

positive integer

Answer:

12 is a positive integer, you can also write it as +12.

Step-by-step explanation:

even if there is no + sign on the 12 it is still considered as a positive number,

therefore, 12 can be written as +12 as an integer.

it is up to u if u write 12 like this: +12 or like this: 12

Answer:

It is C

Step-by-step explanation:

The square root of 61 is 7.81024967591 so it is an irrational number.

Answer:

140% is 140/100 = 7/5 is fraction

Answer:

99

Step-by-step explanation:

33x3=99

Answer:

44

Step-by-step explanation:

4-1=3 (4 times minus what was original which is 1u)

3u=33

1u=33÷3=11

4u=11x4=44

Hope this helps! Thanks.

Answer:

d

Step-by-step explanation:

1 eat

2 eat

3 eat

Answer: I think possible answers  D

Step-by-step explanation:

Answer:

41

Step-by-step explanation:

i did it before kwndjejfjfjf

Answer:

Step-by-step explanation:

Even numbers:

Multiples of 3:

Total number of even numbers or multiples of 3 discounting repeats is 10.

Required probability is:

Answer:

Both are the same because 7/8 is 1/8 away from 1, and 8/7 is one away from 1

Step-by-step explanation:

Answer:

Domain : R−{−1,3}

Range: R

Step-by-step explanation:

Equate the denominator(x2−2x−3) to zero, then solve the equation for x

→x2−2x−3=0

→x=−(−2)±√(−2)2−4⋅(1)⋅(−3)2⋅1

→x=1±2

⇒x=−1 and x=3

This means that, when x=−1 or 3, we have the x2−2x−3=0

Implying that f(x)=x0 which is undefined.

Hence, the domain is all real numbers except −1

and 3

Also written as Df=(−∞,−1)∪(−1,3)∪(3,+∞)

Answer:

The answer is 8

Step-by-step explanation:

c/7 ; c = 56

56/7 = 8

Thus, The answer is 8

-TheUnknownScientist 72

Answer: 28

Step-by-step explanation:

You have to do 1036 divided by 37.

I HOPE THE ABOVE INFORMATION WILL HELP YOU.

THANK YOU.

TEDDYLOVER

Since the sum of two consecutive integers is 299, the integers are 149 and 150

Integers are posiive or negative whole numbers.

Since the sum of two consecutive integers is 299. To find the integers., we proceed as follows.

Since the sum of two consecutive integers is 299.

Let the two consecutive integers be n and n + 1.

Since the sum of two consecutive integers is 299, we have that

n + n + 1 = 299

Adding like terms, we have that

n + n + 1 = 299

2n + 1 = 299

Subtracting 1 from both sides of the equation, we have that

2n + 1 = 299

2n + 1 - 1 = 299 - 1

2n + 0 = 298

2n = 298

Dividing both sides of the equation by 2, we have that

2n = 298

n = 298/2

n = 149

So, n + 1 = 149 + 1 = 150

So, the integers are 149 and 150

Learn more about consecutive integers here:

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y = -4, -3, -2, -1, 0, 1

Step-by-step explanation:

-5 < y < 2

y = -4, -3, -2, -1, 0, 1

-5 < -4, -3, -2, -1, 0, 1 < 2 ☑