The combined weight of the people in an elevator is 49% of the 3,025-pound capacity.Which would be the best way to estimate the combined weight in pounds of the people in the elevator?Find 40% of 3,000.Find 40% of 4,000.Find 50% of 3,000.Find 50% of 4,000.

Answer:

A

Step-by-step explanation:

replace y with 5 giving you 5 = x^2 - 4 then solve giving you x^2 = 9 and then square the 9 giving you x = 3

Based on the information given the amount that each elevator cost them is $2,000.

Using this formula

Cost=Sales price/(1+Percentage profit)

Where:

Sales price=$2,500

Percentage profit=25%

Let plug in the formula

Cost=$2,500/(1+.25)

Cost=$2,500/1.25

Cost=$2,000

Inconclusion the amount that each elevator cost them is $2,000.

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Answer:

i believe it is 4ft

Step-by-step explanation:

Answer:

x = ± 5

Step-by-step explanation:

x² - 25 = 0 ( add 25 to both sides )

x² = 25 ( take the square root of both sides )

x = ± [tex]\sqrt{25}[/tex] = ± 5

solutions are x = - 5 , x = 5

Answers:

Question 4

Since line KL shows the amount of unwanted material from line NM, subtract the two and divide the result by 2 for the bottom measurement to each triangle

36 - 20 = 16

16/2 = 8

So now since we know our a and our c, we can implement the Pythagorean theorem of a^2 + b^2 = c^2 to find b, or the height of the triangle

8^2 + b^2 = 17^2

64 + b^2 = 289

b^2 = 225

b = 15

Therefore x = 15ft

Question 5

An outline for the word problem can look like this:

                      / | \

                   /    |    \

                /       |       \

             /          |          \   450m

          /             |             \

       /    360m  |                \

    /                   |                   \

 /__________|__________\

                                  x

So to start we already know 2 of the 3 angles for the Pythagorean theorem so now we plug them in

360^2 + a^2 = 450^2

129600 + a^2 = 202500

a^2 = 72900

a = 270

So this means that the wires need to be grounded 270m away from the pole

1,3,5,7 = 126°

2,4,6,8 = 54°

Here your go m'dear

Given, ∠3 = 126°.

∠3 =∠1 = 126° (vertically opp. angles)

∠3 =∠5 = 126° (alternate interior angles)

∠3 =∠7 = 126° (corresponding angles)

Now, ∠2 = 180° - 126° = 54° (linear pair/supplementary angles)

∠2 = ∠4 = 54° (vertically opp. angles)

∠2 = ∠8 = 54° (alternate interior angles)

∠8 = ∠6 = 54° (vertically opp. angles)

_________

꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂

Answer:

Step-by-step explanation:

let hundreth digit=x

tenths digit=x+2

ones digit=2x

x+x+2+2x=10

4x=10-2=8

x=8/4=2

tenth digit=2+2=4

ones digit=2×2=4

so number =4.42

so number =4.4

Answer:

Step-by-step explanation:

The table is:

Number of washes denoted by x: 0, 8, 12

Amount left on card denoted by y: 30, 18, 12

a.       Write an equation that shows the amount of dollars left on the card

Solution:

18 – 30 divided by 8 – 0 = -12/8

On simplest form is -3/2

The equation is y = -3/2x + 30

b.      Explain the meaning of the negative slope above.

As the number of car washes increase, the dollars left on the card decreases.

c.       What is the maximum value of x?

0 = -3/2x + 30

2/3 x 3/2 x = 30/1 x 2/3

Cancel 2/3 x 3/2 and reduce 30 by 3 we get 10, 10 x 2

x = 20

Answer:

y=-7

Step-by-step explanation:

This is an expression, not an equation.  y is -7 for any value of x, so f drops out of the equation and it beomes an expression.

Answer:

80 x 0.09 = 7.2

Step-by-step explanation:

Answer:

7.2

Step-by-step explanation:

80 * 9% = 80 * 0.09 = $7.2

Answer:joe

Step-by-step explanation:

joe mama

Answer:

A

Step-by-step explanation:

because y=one over four and one over four is a fuction

Answer:

line 3

Step-by-step explanation:

It is very close to each if the points with no outliers.

Answer:

180

Step-by-step explanation:

pens: 20 x 6 = 120

pencils: 12 x 5 = 60

120+60= 180

Answer:

y= -x^2-2x-4

Step-by-step explanation:

This is standard form

Answer:

x= 4

(not sure about a, sorry friend)

Step-by-step explanation:

Since the shape is congruent with the other sides it's the same.

Answer:

4.5

Step-by-step explanation:

Answer:

4.5

Step-by-step explanation:

To turn a fraction into a decimal you do is divide the numerator by the denominator. It may not always be a whole number. 72 divided by 16 = 4.5 :)

Answer:

See below:

Step-by-step explanation:

(Apologies for the other answer, the moderation team is looking at it.)

So, we can solve this problem by taking 2 steps, Solving and Unit Value.

We'll start off with finding the unit value for 1 cm and how many Newtons we get per one cm.

We can solve for that by dividing both sides by 20 to find the Unit Value.

[tex]\frac{20}{20}=1\\\frac{28}{20}=1.4\\[/tex]

Upon solving, we know that 1.4 is for one unit price. We can then figure out the other blanks by solving it, which we will be doing next.

Solving

To find the first value, we know that the ratio for [tex]I:O[/tex] with I being Input and O being output is 1.4. We know that because in the unit section, we figured the rate out.

We can now use that to find the Newtons, to do that, we must multiply 55 by 1.4.

[tex]55*1.4=77[/tex]

We have found out our first blank which is 77.

We can solve for 140 by dividing it by 1.4 because to get 1 Newton we divide by 1.4 on this table and to get the opposite we have to do the opposite of multiplying; dividing.

We divide 140 by 1.4 and we get 10.

[tex]\frac{140}{1.4}[/tex] = 100

To solve for one, we did that in the beginning, and that would be 1.4

Cheers!

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Answer:

ALL of the following expressions are NOT equivalent to 64^5t^2+3t

Step-By-Step Explanation:

Khan Academy

To determine whether each expression is equivalent to [tex]64^5t^2 + 3t[/tex], we will simplify each expression by evaluating the calculations.

Expression 1:   [tex]64^5t^2 + 3t[/tex]

Expression 2:  [tex](4^3)^5t^2 + 3t = 4^(3*5)t^2 + 3t = 4^15t^2 + 3t[/tex]  

Expression  3:  [tex](8^2)^5t^2 + 3t = 8^(2*5)t^2 + 3t = 8^10t^2 + 3t[/tex]  

Expression 4:   [tex](2^6)^5t^2 + 3t = 2^(6*5)t^2 + 3t = 2^30t^2 + 3t[/tex]  

Expression 5:   [tex](8^8)^3t^2 + 3t = 8^(8*3)t^2 + 3t = 8^24t^2 + 3t[/tex]  

Expression 6:   [tex]64^5t^2 + t + 2t = 64^5t^2 + 3t[/tex]

After evaluating each expression, we can see that all the expressions are equivalent to [tex]64^5t^2 + 3t[/tex]. The calculations show that regardless of the specific values used, the expressions simplify to the same result. Therefore, it can be concluded that all six expressions are equivalent to [tex]64^5t^2 + 3t.[/tex]

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Answer:

it moves to the right 2 places (units)

Step-by-step explanation:

ex

500.*100

50000.

Answer:

the first day has the greater absolute value

Step-by-step explanation:

if this helps can i get brainliest please

2+1/6y=3x+4

3/6y=3x+4

3=3x+4×6y

3-4=3x×6y

-1=18xy

-1/18=xy

HOPE ITS RIGHT!! GIVE BRAINLIEST PLS

Answer:

Y would have to equal 1 over 2(3x+4) in order for this equation to even work properly. 2+1 over 6 would actually equal 1/2y which is basically 3/6y. And since 3 and 6 are like terms 3 divided by 3 is 1 and 6y divided by 3 is 2y

Hope this helps

Hi,

2x - 1 > 3

2x -1 + 1 > 3 + 1

2x > 4

2x / 2 > 4 / 2

x > 2

You have to highlight all the part after 2, and the number 2 should NOT be included, only the part of the line after 2 should be highlighted (until 11 )

Answer:

Step-by-step explanation:

Volume of the cube is 27 cm^3

Since [tex]density = \dfrac{Mass}{Volume}[/tex]

density  = [tex]\dfrac{428 g}{27 cm^3} = 15.85 g/cm^3 > 1.7g/cm^3[/tex]

this will not float on the surface of the liquid.

Convert into kg/m^3

[tex]15.85 g/cm^3 = 15850 kg/m^3[/tex]

Answer:

2.19 +17.03+4.05

15.94+7.33

0.76+13.31+9.2

Step-by-step explanation:

Answer:

La contestacion debe ser la C, ya que estas buscando el total de altura que ha descendido en 40 segundos.

Answer:

i

Step-by-step explanation:

ask your teacher

Answer:

Let the altitude be represented by y and the time taken by x

so y = 3776 - 6x

A linear function is an algebraic equation with variables with a degree of only 1 and constants and is represented in a straight line form on a graph.

The slope Of a straight line (which represents a linear function) is the tangent of the angle made by the line with the x-axis. For a straight line passing through (x1,y1) and (x2,y2) the slope is given by

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

y-y1 = m(x-x1) where y represents y co-ordinate and x represents x- co-ordinate and m is the slope of the line which passes through(x1,y1).

So let time in minutes be represented by 'x'

So let altitude in meters be represented by 'y'

So the (x,y) coordinates according to the given data are (0,3776),(88/3,3600),(126,3020),(538/3,2700) and (231,2390).

So for slope which is m = (3600-3776)/(88/3-0) so slope = -6.

So the linear function is: y-3776 = -6(x-0)

6x+y=3776

So the linear function for the altitude in terms of the time they traveled is 6x+y = 3776

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Answer:

x² - 9

Step-by-step explanation:

   (x + 3)(x - 3)

= x(x - 3) + 3(x - 3)     Distributive  property

= x² - 3x + 3x - 9

= x² +( -3x + 3x) - 9       Associative

= x² + 0x - 9                   Addition    

= x² - 9