anyone know this one

Answer:

(x + 1)(x + 1) = 0  OR  (x + 1)^2 = 0

Step-by-step explanation:

First, we need to get the trinomial x^2 + 2x = -1 all on one side of the equation.

x^2 + 2x = -1

x^2 + 2x + 1 = -1 + 1

x^2 + 2x + 1 = 0

Now that the trinomial is on the left-hand side, let's factor the equation.

x^2 + 2x + 1 = 0

(x + 1)(x + 1) = 0

We can simplify this factored trinomial further to be:

(x + 1)(x + 1) = 0

(x + 1)^2 = 0

Cheers.

Answer:

| and |V only

Step-by-step explanation:

4, 25, and 32 are Counting numbers, while 0 is a whole number B)

Answer:

Value of [tex]x[/tex] is $15$ degrees and measure of a vertical angle is $105$°

Step-by-step explanation:

These are vertically opposite angles which are congruent and hence equal.

Thus,

[tex]x+90=7x\\

\implies 90=6x\\

\implies x=\frac{90}{6}=\frac{30}{2}=15^o[/tex]

Find the measure of a vertical angle by putting the value of $x$ as $15$

Answer:

(a) The sample space is {00, 0, 1, 2, . . . , 30}.

(b) If the wheel is spun 1,000 times, it is expected about 31 of those times to result in the ball landing in slot 3.

(c) If the wheel is spun 100 times, it is expected about 47 of those times to result in the ball landing in an odd number.

Step-by-step explanation:

We are given that in the game of roulette, a wheel consists of 32 slots numbered 00, 0, 1, 2, . . . , 30.

To play the game, a metal ball is spun around the wheel and is allowed to fall into one of the numbered slots.

(a) The sample space is {00, 0, 1, 2, . . . , 30} which means the metal ball can land on any of these numbers.

(b) As we know that there is an equal probability of the metal ball landing on any of the slots marked in the sample space.

Total number of slots = 32

Number of slots marked with 3 = 1

So, the probability that the metal ball falls into the slot marked 3 is given by =  [tex]\frac{1}{32}[/tex]  = 0.031 or 3.1%

This means that if the wheel is spun 100 times, it is expected about 3.1 of those times to result in the ball landing in slot 3.

So, if the wheel is spun 1,000 times, it is expected about 31 of those times to result in the ball landing in slot 3 because (0.031 [tex]\times[/tex] 1000) = 31.

(c) As we know that the odd slot in the given sample space is {1, 3, 5,......, 29}.

Total number of slots = 32

Number of odd slots = 15

So, the probability that the metal ball lands in an odd slot is given by =  [tex]\frac{15}{32}[/tex]  = 0.47 or 47%.

This means that if the wheel is spun 100 times, it is expected about 47 of those times to result in the ball landing in an odd number.

Answer:

The discriminant is the expression b2 - 4ac, which is defined for any quadratic equation ax2 + bx + c = 0. Based upon the sign of the expression, you can determine how many real number solutions the quadratic equation has. If you get a positive number, the quadratic will have two unique solutions

Step-by-step explanation:

hope it help

Answer:

D = b² - 4ac

Step-by-step explanation:

if,

ax² + bx + c = 0

Answer:

  104°

Step-by-step explanation:

The marked angles have the same measure, so ...

  (4x +10) = (7x -11)

  21 = 3x . . . . . . . . . . . add 11-4x

  7 = x . . . . . . . . . . . . . divide by 3

Then angle C is ...

  C = (4x +10)° = (4(7) +10)° = 38°

The measure of angle A is 180° -2(38°) = 104°.

_____

That angle will have the same measure whether the pennant is rotated or not.

Answer:

b< -76

Step-by-step explanation:

Answer is any number smaller than -76

Answer:

Answer:

b< -76

Step-by-step explanation:

8 - 1/4 b > 27         ⇒ add -8 to both sides

-1/4b > 27 - 8      

-1/4 b > 19              ⇒ multiply both sides by -4

b < - 4*19               ⇒ change inequality sing to opposite due to multiplication to negative number

b < - 76                  ⇒ answer

Answer is any number smaller than -76

Step-by-step explanation:

Answer:

$5.31/lb

Step-by-step explanation:

Since 4 pounds cost $21.25, 1 pound of strawberries will cost 21.25 / 4 ≈ 5.31, therefore, the unit rate is $5.31/lb.

Answer:

$5.31 per pound.

Step-by-step explanation:

$21.25 for so

%21.25/4= $5.31

The answer is $5.31 per pound.

Answer:

64

Step-by-step explanation:

Answer:

191.56

Step-by-step explanation:

Given

191.5638

Required

Approximate

Approximating to the nearest hundredth implies that, only to digits after the decimal point is needed

This is:

191._ _

The third digit after the decimal point will approximated using the approximation rule;

Since, the third digit after the decimal point (3) is not up to 5, it'll be approximated to 0 and added to the second digit (6)

So, we have:

191.5 _

The next digit is calculated as 6 + 0 = 6

Hence, the full approximated number is 191.56

=======================================================

Explanation:

The plane needs to go up 29,000-8,000 = 21,000 feet

It does so at a rate of 3500 ft per min

So it needs 21000/3500 = 6 minutes to get to the proper height.

---------

You can think of it like the equation

3500x = 21000

where x is the number of minutes needed. Dividing both sides by 3500 solves to x = 6.

-----------

Or you could think of it like this

1 minute = 3500 feet

1/3500 minute = 1 foot (divide both sides by 3500)

1 foot = 1/3500 minute

21000 feet = 21000/3500 minute (multiply both sides by 21000)

21000 feet = 6 minutes

This shows that to go up 21000 feet, the plane needs 6 minutes to do so.

Answer:

Option C: Do free market economies create problems for workers?

Step-by-step explanation:

There was a law called Say's law which states that capitalist production generates its own markets, and therefore, there can't possibly be any gluts or overproduction of goods in relation to market demand.

Now, keynes and marx rejected this say's law because they both believed that gluts or overproduction may likely occur.

They believed that this law would make capitalists own nothing but the right to sell their labor in exchange for wages.

That due to the capitalists competition with themselves for profits, it would squeeze as much work as possible out of the working class people at the lowest possible price and that this competition would cause some capitalist firms to fail, and thereby increasing unemployment among the working class.

Thus, it's clear this was an answer to the question on whether free market economies create problems for workers.

Answer:

A.Should government take total control over economies

Step-by-step explanation:

Answer:

The coordinates of A would be (-1, 2)

Step-by-step explanation:

In order to find this, use the mid-point formula.

(xA + xB)/2 = xM

In this, the xA is the x value of point A, xB is the x value of point B, and xM is the x value of M. Now we plug in the known information and solve for xA.

(xA + 5)/2 = 2

xA + 5 = 4

xA = -1

Now we can do the same using the midpoint formula and the y values.

(yA + yB)/2 = yM

(yA + 10)/2 = 6

yA + 10 = 12

yA = 2

This gives us the midpoint of (-1, 2)

Answer: x=20

Step-by-step explanation:

1/2x + 7  =x -3            add 3 to both sides

          +3      +3

1/2x + 10 = x          Subtract 1/2x from both sides

-1/2x          -1/2x

        10 = 1/2x

  x = 20

Answer:

[tex]x=20[/tex]

Step-by-step explanation:

We can solve for x by simplifying the equation until we have x isolated on one side.

[tex]\frac{1}{2}x + 7 = x-3[/tex]

Subtract 7 from both sides:

[tex]\frac{1}{2}x = x-10[/tex]

Subtract x from both sides:

[tex]-\frac{1}{2}x = -10[/tex]

Multiply both sides by -2:

[tex]x = 20[/tex]

Hope this helped!

Answer: n=9

Step-by-step explanation:

81 = n>4*n

81 = 9(>4)*9

81 = 9*9

Answer:

$1,250

Step-by-step explanation:

We are given;

Loan to value ratio;LTV = 80% = 0.8

Appraised value of property = $72,250

Selling value of property = $73,500

Now, the formula for Loan to value ratio is;

LTV = Loan amount/Appraised value of property

0.8 = loan amount/72250

Cross multiply to get;

Loan amount = 0.8 × 72250 = $57,800

Now,we are told that he has saved $14,450.

Thus, total money raised including loan = $57,800 + $14,450 = $72,250

Since the selling value = $73,500, then,

Amount left for him to save in order to make down payment = $73,500 - $72,250 = $1,250

Answer:

-4,-3,-2,-1,0,+1,+2,+3..........

Step-by-step explanation:

-4 is greater than -5.

A number system is defined as a system of writing to express numbers.

An integer is the number zero, a positive natural number or a negative integer with a minus sign.

We need to find the integer which is greater than -5.

When we look into the number line we get an idea that the numbers with minus values are smaller than the positive values.

The greatest number with minus sign is smaller than the smallest number with minus sign.

-4 is greater than -5.

Not only -4 but the integers -4,-3,-2, -1, 0,1,2..... are greater.

Hence, -4 is greater than -5.

To learn more on Number system click:

https://brainly.com/question/22046046

#SPJ2

Answer:

0.7176

Step-by-step explanation:

We solve this question, using z score formula.

Z score formula = (x - μ)/σ

where x is the raw score

μ is the population mean

σ is the population standard deviation.

For z1, where x1 = 2.8, μ = 4, σ = 0.5

z score formula = (2.8 - 4)/0.5

= -2.4

We find the probability of the z score using the z score table.

P(x = 2.8) = P(z = -2.4)

= 0.0081975

For z2, where x2 = 4.3, μ = 4, σ = 0.5

z score formula = (4.3 - 4)/0.5

= 0.3/0.5

= 0.6

We find the probability of the z score using the z score table.

P(x = 4.3) = P(z = 0.6)

= 0.72575

The probability that an item will take between 2.8 and 4.3 hours to move through the assembly line is calculated as:

= 2.8 < x < 4.3

= P(z = 0.6) - P(z = -2.4)

= 0.72575 - 0.0081975

= 0.7175525

Approximately ≈ 0.7176

Therefore, the probability that an item will take between 2.8 and 4.3 hours to move through the assembly line is 0.7176

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Hi my lil bunny!

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Let's simplify step-by-step.

[tex]Log (5) + (3 log (2)) - \frac{log(4)}{log(10)}[/tex]

[tex]= 0.69897 + 3(log (2)) - \frac{log (4)}{log (10)}[/tex]

[tex]= 0.69897 + (3) (0.30103) - \frac{log (4)}{log(10)}[/tex]

[tex]= 0.69897 + 0.90309 - \frac{log (4)}{log(10)}[/tex]

[tex]= 1.60206 - \frac{log(4)}{log(10)}[/tex]

[tex]= 1.60206 - \frac{1.60206}{log (10)}[/tex]

[tex]= 1.60206 - \frac{1.60206}{1}[/tex]

[tex]= 1.60206 - 0.60206[/tex]

[tex]= 1[/tex]

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Have a great day/night!

❀*May*❀

Answer:

5 days

Step-by-step explanation:

You subtract $610 from $1800. You should get 1190.

Then divide 1190 with 238.

The answer you get should be 5.

Answer:

5 days

Step-by-step explanation:

Answer:

(x² + 6)(3x² - 4)

Step-by-step explanation:

factor out (x² + 6)

(x² + 6)(3x² - 4)

Answer:

the answer 18 because:

40=2X+4

Answer:

EF, FG, GH, EG, FH, EH

Step-by-step explanation:

These are all the ones under def. line segment.

See the attachment. It will be helpful.

Answer:

He bought 4 drinks

Step-by-step explanation:

18.25= 2.25(5)+1.75d

18.25= 11.25+ 1.75d

18.25-11.25= 7

7= 1.75d

7/1.75

4=d

Answer:

4 drinks

Step-by-step explanation:

t = 2.25h + 1.75d

T = Total Cost

H = Hotdogs

D = Drinks

We have our total cost, which is $18.25 dollars

18.25 = 2.25h + 1.75d

We know Costas bought 5 hotdogs, so replace h with 5 and multiply :

2.25(5)

==> 11.25

Now that 11.25 dollars has been made, let's see how much money we need left to fit for the drinks.

18.25 - 11.25

==> 7

We need 7 dollars worth of drinks, so divide the cost by the amount we need to have.

7 / 1.75

==> 4

Castos needs to buy 4 drinks.

Answer:

Distance = 8

[tex]Formula =\\\sqrt{(x_2-x_1)^2+(y_2-y_2)^2}[/tex]

Step-by-step explanation:

[tex](17,3)=(x_1 , y_1 )\\ (17,-5)=(x_2,y_2)\\\\d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\\\d = \sqrt{(17-17)^2+(-5-3)^2}\\\\ d = \sqrt{(0 )^2+(-8)^2}\\\\d = \sqrt{0 +64}\\\\ d = \sqrt{64} \\\\d = 8[/tex]

Answer:

871 and 1/2 feet is correct

Step-by-step explanation:

Answer:

b = -3

Step-by-step explanation:

Solve for b:

4 b - 4 2 + 24 = 20 - 16

-4×2 = -8:

4 b + -8 + 24 = 20 - 16

Grouping like terms, 4 b - 8 + 24 = 4 b + (24 - 8):

4 b + (24 - 8) = 20 - 16

24 - 8 = 16:

4 b + 16 = 20 - 16

20 - 16 = 4:

4 b + 16 = 4

Subtract 16 from both sides:

4 b + (16 - 16) = 4 - 16

16 - 16 = 0:

4 b = 4 - 16

4 - 16 = -12:

4 b = -12

Divide both sides of 4 b = -12 by 4:

(4 b)/4 = (-12)/4

4/4 = 1:

b = (-12)/4

The gcd of -12 and 4 is 4, so (-12)/4 = (4 (-3))/(4×1) = 4/4×-3 = -3:

Answer: b = -3

Answer:

rational number

Step-by-step explanation:

A whole number does not have a decimal part so it cannot be a whole number

Integers are whole numbers that are positive and negative plus zero

-.23 can be written as the ratio of integers

-23/ 100 so it is a rational number

Answer:

Rational

Step-by-step explanation:

A whole number does not have a decimal part so it cannot be a whole number

Integers are whole numbers that are positive and negative plus zero

-.23 can be written as the ratio of integers

-23/ 100 so it is a rational number

Answer: 2y + 5x + 16 = 0

Step-by-step explanation:

To solve this you need to understand the principle/ conditions for parallelism and perpendicularity.

for two lines to be parallel to each other, their gradients or slopes (m) must be equal, that is  m₁ = m₂

Now from the given equation,

5x + 2y = 14 , we need to rearrange it to conform to the equation of a straight line so that the gradient could be established. ie

y = mx + c where m is the gradient

 2y = -5x  + 14

   y = -5x/2  + 14/2

   y = ⁻⁵ˣ/₂  + 7 , therefore , m₁ = ⁻⁵/₂ and m₂ = ⁻⁵/₂ ( parallelism Rule )

The next step is to find the value of C using the coordinate ( -2, -3 )

  -3 = ⁻⁵/₂ ˣ ⁻² + C,

  -3 =  ¹⁰/₂  + C

  -3 =  5 + C

   C = -8.

Now to find the equation of the line that passed through the coordinate

  y = mx + c

  y = ⁻⁵ˣ/₂  - 8

  2y = -5x - 16

  2y + 5x + 16 = 0.

Answer:

Three point one seven is your answer.

Step-by-step explanation:

Hope it will help you:)