solve the equation by completing the square. Round to the nearest hundredth if necessary.


x^2+2x=8


A. X= 2, 4

B. X= -2, 4

C. X= 2, -4

D. X= -2, -4

Answer:

6

Step-by-step explanation:

[tex]3x = 18[/tex]

[tex] \frac{3x}{3} = \frac{18}{3} [/tex]

[tex]x = 6[/tex]

Answer:

Step-by-step explanation:

[tex]Equation \ of \ a \ line, (y-y_1)=slope(x-x_1)[/tex]

[tex](x_1, y_1) = (2,3)[/tex]

                                [tex]y-3=\frac{1}{2}(x-2)\\\\y -3= \frac{1}{2}x-1\\\\y = \frac{1}{2}x-1+3\\\\y = \frac{1}{2}x+2[/tex]

Answer:

0

Step-by-step explanation:

anything in multiplication that is multipled by 0 is just 0.

Answer:

Z score associated with sleeping 503 minutes = 0 minutes

Step-by-step explanation:

Given values of sleep per night for adults:

Mean value X = 503

Standard deviation σ = s

FInd:

Z score associated with sleeping 503 minutes

Computation:

⇒ P[X = 503]

⇒ P[(x - X) / σ] = [503 - 503] / s

⇒ Z score value = [0] / s

⇒ Z score value = 0

Z score associated with sleeping 503 minutes = 0 minutes

Answer:

$167.4 If its helpful heart it!

Step-by-step explanation:

135% of 125 is 167.4

Answer:

315.78$

Step-by-step explanation:

Answer:

29.749

Step-by-step explanation:

cross multiply sin with x, and then divide sin and divide 12.1 by sin24

Answer

93

Step-by-step explanation:

There are 399 stones in the pyramid of 19 layers if there are 3 stones at the top and 2 more stones in each layer below this

An equation is an expression that shows the relationship between two or more numbers and variables.

A small pyramid has 3 stones at the top and 2 more stones in each layer below this. This can be represented as an arithmetic progression with first term (a) = 3 and difference (d) = 2, hence:

number of stones in 19 layers = [tex]\frac{19}{2}(2(3)+(19-1)2)=399[/tex]

There are 399 stones in the pyramid of 19 layers if there are 3 stones at the top and 2 more stones in each layer below this

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Answer:

100,000

Step-by-step explanation:

Given :

Initial deposit = 40000

Amount of money = Initial deposit / Reserve rate

When reserve rate = 10% = 0.1

Amount of money = 40000 / 0.1 = 400,000

When reserve rate = 8% = 0.08

Amount of money = 40000 / 0.08 = 500,000

Difference = 500,000 - 400,000 = 100,000

Amount of money will increase by 100,000

Answer:

P

Step-by-step explanation:

Answer:

It will be $40.00

Step-by-step explanation:

hope this helps

Answer: it is B

Step-by-step explanation: uhhh do 40 X .25 and uhh there you go yeah that’s right

Answer:

5/14

Step-by-step explanation:

To find the slope using two points

m = ( y2-y1)/(x2-x1)

   = ( -1 - -6)/( 5 - -9)

   = ( -1 +6)/ ( 5+9)

    5/14

Answer:

2384.83 cm³

Step-by-step explanation:

Volume = πr² * h

Volume = 3.14 * 7² * 15.5

Volume = 3.14 * 49 * 15.5

Volume = 2384.83

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

c

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

https://www.calculatorsoup.com/calculators/geometry-solids/pyramid.php is a great calculator for this.

Answer:

0

Step-by-step explanation:

We can use the slope formula since we have two points

m = ( y2-y1)/(x2-x1)

   = ( -2- -2)/(3-14)

   = ( -2+2)/(3-14)

    = 0/-11

   = 0

Answer:

0 is the slope of the line that contains the points (14,-2) and (3,-2)

Step-by-step explanation:

To find , the slope is the slope of the line that contains the points (14 , -2)and (3, -2)

we using slope formula which is

Where,

m , is the slope

( y ² - y ¹ ) = ( 14 , - 2)

( x ² - x ¹) = (3, -2 )

Substitute the values into the formula

m = (( -2 )- ( -2 ) ) / (3 - 14 )

m= ( -2 + 2 ) / ( 11)

m = 0 / 11

m = 0

Therefore , 0 is the slope of the line that contains the points (14,-2) and (3,-2)

Answer:

y = 3x + 4

Step-by-step explanation:

slope = (y2 -y1)/(x2 - x1)

y2 = 19

y1 = 7

x2 = 5

x1 = 1

Slope = (19 - 7)/(5 - 1)

slope = 12 / 4

slope = 3

So far what you have is

y = 3x + b                      To solve for b, use either of the two points.

x = 1

y = 7

7 = 3(1) + b

7 = 3 + b

b = 4

The final equation is

y = 3x + 4                    

We should check that with the other  point

x = 5                  Find y

y = 3(5) + 4

y = 15 + 4

y = 19              Ans it checks.

Answer:

D) Divide both sides of the equation by 6

Step-by-step explanation:

6a = 18

a = 3

divide both sides by 6....

Answer:

Thanks you to

Step-by-step explanation:

Answer:

kilometers

Step-by-step explanation:

Millimeter - too small

Centimeters - too small

Metres - good for width

Kilometres - good for length

Answer: The answer for the first one is (75,25) and the second one is No

Step-by-step explanation:

1. when the football, is 25 feet high, it has traveled 75 feet abd that is it's highest point

2. No, because when you convert 45 yards to feet it is only going to be 9ft in height.

I hope this helps

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

Explanation:

I recommend drawing it out to see what's going on. See the drawing below.

In the diagram, both angles are in the northeast corner of their four-corner configurations. They are both congruent corresponding angles. So that's why the second angle is also 95 degrees.

Side note: we could replace "northeast" with any of the other directions on the compass (such as southwest). All that matters is that they are in the same configuration.

Answer:

Blue: 3/6

Red: 2/6

Green: 1/6

Hope This Helps!

Answer:

5xy (3x - 5y + 15xy)

Step-by-step explanation:

Ahora, si quiero tomar factores comunes, debo buscar algo que divida todos los términos de la expresión.

Este término que va a dividir todos los términos de la expresión es 5xy

Por lo tanto, para factorizar 15x2y - 25xy2 + 75x2y2

Tengo;

5xy (3x - 5y + 15xy)

Answer:

10.8 mi

Step-by-step explanation:

Picture a right triangle with legs 9 mi and 6 mi.  Applying the Pythagorean Theorem (d² = a² + b²), we get:

(9 mi)² + (6 mi)² = 117 mi²

This is the square of the hypotenuse (the desired distance).

Taking the square root of both sides, we get d = √(117 mi) ≈ 10.8 mi = d

The desired straight line distance traveled is 10.8 mi

Answer:

$19 × 3 + $15 + $1=answer? I think

Answer:

BAHO PEPE

Step-by-step explanation:

I HOPE THIS HELP

Answer:

A, B, and C

not D or E

Step-by-step explanation:

A: the mean is 1.6 for group A compared to 2.5 of group B

B: the median is 1.5 for group A compared to 2.5 of group B

C: the mode is 3 for A and the mode is 5 for B

therefor, abc :)

The three statements that are true about the measures of the centre are:

The median for Group A is 2.

The median for Group B is 3.

The mode for Group A is less than the mode for Group B.

We must tally up every dollar spent and divide it by the number of pupils in each group to determine the mean for each group.

The dot plots show that Group A is expected to have a mean that is lower than Group B because Group A has more values that are less than $2, which will lower the average.

Yet, based just on the dot plots, we cannot be certain of the precise values of the means. The claim "The mean for Group A is less than the mean for Group B" is therefore not always accurate.

When the data are organized in order, the median is the middle value. The dot plots show that Group A's median is 2 and Group B's median is 3, respectively. It follows that the claim "The median for Group A is less than the median for Group B" is untrue.

The value that appears the most frequently is the mode. The dot plots demonstrate that Group A has a mode of 1, while Group B has a mode of 3. The adage "The mode for Group A is less than the mode for Group B" is therefore accurate.

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