Can someone please help marking brainliest

Answer:

[B] $6.88

Step-by-step explanation:

Answer:

( 2 + √3 ) / 2, ( 2 - √3 ) / 2

Step-by-step explanation:

2x^2 - 2x = 1

2x^2 - 2x - 1 = 0

Here,

a = 2

b = - 2

c = - 1

D = b^2 - 4ac

D = ( - 2 )^2 - 4 ( 2 ) ( - 1 )

= 4 + 8

D = 12

x = - b ± √D / 2a

= - ( - 2 ) ± √12 / 2 ( 2 )

= 4 ± 2√3 / 4

= 2 ( 2 ± √3 ) / 4

= 2 ± √3 / 2

x = ( 2 + √3 ) / 2, ( 2 - √3 ) / 2

Answer:

0.7 for one letter. 1.5 for flat fee...

Step-by-step explanation:

Answer:

The length of the kitchen is 2.23 meters.

Step-by-step explanation:

Given that a mouse has made holes in opposite corners of a rectangular kitchen, and the width of the kitchen is 2 meters and the distance between the mouse's holes is 3 meters, the following calculation must be performed to determine what is the length of the kitchen, using the Pythagorean theorem:

Width = 2 meters

Hypotenuse = 3 meters

2 ^ 2 + X ^ 2 = 3 ^ 3

4 + X ^ 2 = 9

X ^ 2 = 9 - 4

X = √ 5

X = 2.236

Therefore, the length of the kitchen is 2.23 meters.

Answer:

A

Step-by-step explanation:

The correct inequality that represents the given situation is: A.) n - 87 < 320.

The situation states that Samuel played a video game and gained some points. Let's represent the points he gained as 'n'.

Next, it is mentioned that he lost 87 points. To represent this in the inequality, we subtract 87 from the initial points gained, which gives us 'n - 87'.

Finally, the situation specifies that Samuel finished with less than 320 points. This means that the final score, represented by 'n - 87', is less than 320.

This inequality represents that the initial points gained by Samuel (n) minus 87 points is less than 320 points, indicating that his final score is less than 320 points after losing 87 points.

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Answer:

Solution given:

the use of compass seems that it divides the angle D in half so

The correct answer is A. The bisection of angle D. In the given figure, the construction is shown to bisect angle D. This means that the angle bisector divides angle D into two equal angles.

The construction of the bisector of an angle involves dividing the angle into two congruent halves. This can be done using the following steps:

Place the compass on the vertex of the angle and draw an arc that intersects both sides of the angle.

Without changing the compass width, place the compass on each of the two points where the arc intersects the sides of the angle, and draw two arcs that intersect each other.

Draw a straight line connecting the vertex of the angle to the point where the two arcs intersect. This line is called the angle bisector.

The angle bisector divides the angle into two congruent angles, with each half measuring half of the original angle.

In the given figure, the construction is shown to bisect angle D. This means that the angle bisector divides angle D into two equal angles. Therefore, the correct answer is A. The bisection of angle D.

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Answer:

f(-3) = -1

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

Identify

f(x) = -1x - 4

Step 2: Evaluate

Answer:

C, D

Step-by-step explanation:

I assume your problem statement actually says

x - 54 > -76

x > -22

then the answers

C, D

are part of the solution set.

the others are not.

Answer:

The greatest possible length of the pieces is 5 feet

Step-by-step explanation:

Red = 415 feet

Green = 780 feet

Find the greatest possible length of the pieces.

Find the Highest common factor

415 = 1, 5, 83, 415

780 = 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390 and 780

The Highest common factor of 415 and 780 is 5

The greatest possible length of the pieces is 5 feet

Red = 415/5

= 83 pieces

Green = 780/5

= 156 pieces

Answer:

Step-by-step explanation:

252 = 2 * 126

        = 2 * 2 * 63

         = 2 * 2 * 3 * 21

         = 2 * 2 * 3 * 3 * 7

         = 2² * 3² * 7

Answer:

2^2 x 3^2 x 7

Step-by-step explanation:

2----252

2---- 126

3----- 63

3------ 21

7------ 7

         1

2x2x3x3x7

In expotential form = 2^2 x 3^2 x 7

Answer:

3 employees

Step-by-step explanation:

The best way to obtain a solution is to note the coordinate if each point on the scatter plot :

Where, the x - axis represents the number of cars sold and y - axis represents the number of trucks sold.

So, the number of employees that sold more cars than trucks exists where the x - axis value is greater than its corresponding y-axis value.

The scatter plot points : (2,4) (4,3) (3,7) (3,9) (4,8) (5,6) (5,7) (6,6) (9,0) and (10,1)

Points where x-axis > y-axis with each coordinate representing an employee :

(4,3) ; (9,0) and (10,1) = 3 employees.

Respuesta:

+8848 m;

- 25 metros

- 1

+ 500

+ 2,38

- 200

Explicación paso a paso:

Los signos se asignan en función del escenario descrito.

La altura del monte Everest representa la altitud y esto atrae un signo positivo.

Un descenso de 25 m representa una disminución y, por lo tanto, atrae un signo negativo.

El primer subsuelo se refiere al primer piso debajo, la posición hacia abajo atraerá un signo negativo.

Un crédito representa una adición, por lo tanto, atrae positivos

Un salto se clasificará como positivo

A la fecha o período pasado se le asignará un signo negativo

Answer:

48

Step-by-step explanation:

To find how many 1/3 cm length cubes fill the prism, we first need to find the volume, which is equal to

length * width * height = 1 cm * (2 + 2/3) cm * (2/3) cm

= 1 cm * (6/3 + 2/3) cm * (2/3) cm

= 1 cm * (8/3) cm * (2/3) cm

= (8/3) cm ² * (2/3) cm

= (16/9) cm³

Therefore, the volume is 16/9 cm³.

Next, one cube with side lengths of 1/3 has a volume of ((1/3) cm)³ = (1/27)³

We thus need to find how many of 1/27 goes into 16/9

If we multiply 16/9 by 1=3/3 (as 9*3=27), we can equalize the bases, making 16/9 = 48/27

All that's left is to figure out how many times 1/27 goes into 48/27, which is equal to (48/27)/(1/27) = 48

Answer:

the first one

Step-by-step explanation:

check which graph passes through the point (2,4)

Answer:

First graph

Step-by-step explanation:

Edge

Answer:

Step-by-step explanation:

abscissa = x coordinate

ordinate = y coordinate

table:

A( 2,-3)   / (2, -3) / 2/  -3

B(-1,-7)    / (-1, -7) / -1/  -7

C(2,0)    / (2,0)   / 2 / 0

D(-9, 6)  / (-9,6) / -9 / 6

E(2,4) .  / (2,4) .  / 2 / 4

F(0,-5)  /  (0,-5) / 0 / -5

Answer:

The answer would be C.

Compared to the original graph (red), the new graph (blue) is shifted 7 units to the left.

Step-by-step explanation:

Answer:

shift 7 units to the LEFT

Step-by-step explanation:

Answer:

125m

Step-by-step explanation:

Because 300m - 175m

= 125m

Answer:

A (125)

Step-by-step explanation:

You just need to subtract.

300 meters is the total amount she needs to swim, and she's already swam 175.

So to find the meters she still needs to swim you do 300 - 175

300 - 175 = 125

Answer:

your my friend your questions are cool

Answer:

5

Step-by-step explanation:

Well I not know which playboy you’r talking because there are lot of people name has that

Answer:

yes it is a function         A

Step-by-step explanation:

Answer:

17

Step-by-step explanation:

F(5) means you replace/ substitute all x's with 5's

Therefore, it would look like this:

f(x) = 3x + 2

f(5) = 3(5) + 2

f(5) = 15 + 2

f(5) = 17

Answer:

10x-20

Step-by-step explanation:

(5×2x)-(5×4)

10x-20

Answer:

Arianna bought 7 pink flowering plants.

Step-by-step explanation:

Variable x = number of pink plants

Variable y = number of purple plants

Set up a system of equations:

x + y = 15

8x + 5y = 96

Isolate variable y (I will solve using substitution):

x + y = 15

y = 15 - x

Substitute the value of y in the second equation:

8x + 5(15 - x) = 96

Use distributive property:

8x + 75 - 5x = 96

Combine like terms:

3x + 75 = 96

Isolate variable x:

3x = 21

x = 7

Answer:

Step-by-step explanation:

First of all, something is wrong with either the wording in the problem or the equation that you wrote; if the upward velocity is 18, we should see 18t in the equation, not 10t. I solved using 10t.

To find the max height of the ball and the time it took to get there, we need to complete the square on this quadratic and solve for the vertex. That will give us both of those answers in one!

To complete the square, set the quadratic equal to 0 and then move over the constant, like this:

[tex]-5t^2+10t=-35[/tex]  The rule is that we have to have a 1 as the leading coefficient, and right now it's a -5, so we factor that out, leaving us with:

[tex]-5(t^2-2t)=-35[/tex] and now we are ready to begin the process to complete the square.

The rule is: take half the linear term, square it, and add it to both sides. Our linear term is a -2 (from the -2t); half of -2 is -1, and -1 squared is 1. We add in a one to both sides. BUT when we put the 1 into the set of parenthesis on the left, we didn't just add in a 1, we have that -5 out front that is a multiplier. That means that we actually added in a -5 after it's all said and done.

[tex]-5(t^2-2t+1)=-35-5[/tex] and we'll clean that up a bit. The right side is easy, that's a -40. The left side...not so much.

The reason we complete the square is to put this quadratic into vertex form. Completing the square creates a perfect square binomial on the left, which for us is, along with the simplification on the right:

[tex]-5(t-1)^2=-40[/tex]

Lastly, we move the -40 back over by adding and setting the quadratic back to equal y:

[tex]-5(t-1)^2+40=y[/tex] and we see that the vertex is (1, 40). That translates to a height of 40 meters at 1 second after launch. That's the vertex which, by definition, is the max or min of the parabola. Because our parabola is negative, the vertex for us is a max.

To find out how long it takes the ball to hit the ground, set the quadratic equal to 0 and factor however it is you are currently doing this in class. You can continue to factor from the vertex form we have the equation in if you'd like. Let's do that, since we are already most of the way there. Begin here:

[tex]-5(t-1)^2=-40[/tex] and divide both sides by -5 to get

[tex](t-1)^2=8[/tex] and take the square root of both sides to "undo" that squaring on the left:

t - 1 = ±√8. Now add 1 to both sides to isolate the t:

t = 1 ± √8. In decimal form:

t = 1 + √8 is 3.828 seconds and

t = 1 - √8 is -1.828 seconds.

Since we all know that time will NEVER be a negative value, the time it takes the ball to hit the ground is 3.828 seconds.

These triangles are congruent by SAS, therefore HI and IJ will be the same length.

3v = v + 60

2v = 60

v = 30

Hope this helps!

Answer:

7(y-4)

---------

6(y+4)

Step-by-step explanation:

5y-20        7y+35

------------ * ------------

3y+15           10y +40

Factor

5(y-4)     7(y+5)

--------  * -----------

3(y+5)     10(y+4)

Cancel like terms

(y-4)     7

--------  * -----------

3            2(y+4)

7(y-4)

---------

6(y+4)

Answer:

Options (1), (2) and (4)

Step-by-step explanation:

1). Since, pyramid given in the picture is a rectangular pyramid,

Area of the rectangular base = Length × Width

                                                = 6 × 4

                                                = 24 cm²

2). There are four lateral sides of the pyramid.

3). Lateral sides of the pyramid are not congruent.

4). Total surface area = Area of the lateral sides + Area of the rectangular base.

Area of one lateral side = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]

                                       = [tex]\frac{1}{2}(4.6)(4)[/tex]

                                       = 9.2 cm²

Area of second lateral side = [tex]\frac{1}{2}(6)(4)[/tex]

                                              = 12 cm²

Area of the lateral sides = 2(9.2) + 2(12)

                                        = 42.4 cm²

Total surface area = 42.4 + 24

                              = 66.4 cm²          

5). Area of the one face = [tex]\frac{1}{2}(6)(4)[/tex]

                                        = 12 cm²

Area of the second face = [tex]\frac{1}{2}(4.6)(4)[/tex]

                                         = 9.2 cm²

Therefore, Options (1), (2) and (4) are the correct options.

Answer: -5

Step-by-step explanation:

square brackets mean that you need to select an integer part from the number that does not exceed the original number, that is, if we have a number, that is, if [5,1]=5 or [-5,1]=-6    ;  curly brackets highlight the fractional part {}   [tex]\displaystyle\ \Large \ \boldsymbol{Rules: } \\\\\\\boldsymbol{ if \ x >0 => [x]=x-\{x\}} \\\\\\\boldsymbol{if \ x<0 => [x]=x-1+\{x\}} \\\\\\then \ \ f(-5)=[-5+1]= [-4]=-4-1+0=\boxed{-5}[/tex]                                                                                                              

Answer:

B. 11:35 am

Step-by-step explanation:

11:30 a.m. the bottle is 1/4 of the way full.

At what time will the bottle be 1/2 full?

Time required = 1/4 ÷ 1/2

= 0.25/0.5

= 0.5 minutes

Total time required for the bottle be 1/2 full

= 11:30 am + 0.5 minutes

= 11:35 am

B: 11:35 a.m

Answer:

A The bottle was 1/2 full at 11:35 a.m. and doubled again after 5 minutes.

B The bottle was 1/4 full at 11:30 a.m. and doubled twice after 10 minutes.

D Exponential growth involves a constant multiplicative rate of change.

Step-by-step explanation:

Edge 2021

Answer:

Open the image. (Hope you don't mind about bad writing)