Sarah has built a scale model of a bridge. The real bridge is 56 ft across and 21 ft wide. Sarah's model is 8 in. across and
2.5 in. wide. Is Sarah's model a true model of the bridge? Explain.

Answer:

yo look up essay typer.....it helps

Answer:

x = [tex]\frac{9}{4}[/tex]

Step-by-step explanation:

Given

[tex]\frac{4x}{x+1}[/tex] - [tex]\frac{5}{x}[/tex] = [tex]\frac{4}{x^2+x}[/tex] ← factor denominator

[tex]\frac{4x}{x+1}[/tex] - [tex]\frac{5}{x}[/tex] = [tex]\frac{4}{x(x+1)}[/tex]

[ x ≠ 0, x ≠ - 1 as these would make the terms undefined ]

Multiply through by x(x + 1)

4x² - 5(x + 1) = 4

4x² - 5x - 4 = 4 ( subtract 4 from both sides )

4x² - 5x - 9 = 0 ← in standard form

(x + 1)(4x - 9) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 1 = 0 ⇒ x = - 1

4x - 9 = 0 ⇒ 4x = 9 ⇒ x = [tex]\frac{9}{4}[/tex]

However, x ≠ - 1 for reason given above, then

solution is x = [tex]\frac{9}{4}[/tex]

Answer:

10

Step-by-step explanation:

(3x-1)+2x-4 turns into

(3x3 -1)+2x3 -4

(9-1)+6-4

8+2

10

Answer: 184.73 meters

Step-by-step explanation:

1 yard = 0.91 meters

Given

There are 203 yards

Calculate

203 yards × 0.91 meters/yard = 184.73 meters

Hope this helps!! :)

Please let me know if you have any questions

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Answer:

x=3

Step-by-step explanation:

The quotient of 100/20 is 5. The correct option is F.

The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.

We have the expression:

100/20

To find the quotient:

Quotient: The number resulting from the division of one number by another.

Use division operation.

100 / 20

Simplifying,

10x10 / 2 x 10

Factor out 10.

We get,

10/2

So, 10/2 = 5

Therefore, the quotient is 5.

To learn more about the division;

https://brainly.com/question/13263114

#SPJ2

Answer:

A

Step-by-step explanation:

An isosceles right triangle has two legs the length x and the hypotenuse equal to x√2.

Answer:

No one gets math also saying you will mark Brainliest doesn't make me want to answer more...

Step-by-step explanation:

Try watching  videos trust me you will learn a lot more.

Answer:

The distance from the ball to the left post is 50 feet.

Step-by-step explanation:

Since a soccer goal is composed of a pair of 8 ft upright posts, positioned 48ft apart with a horizontal crossbar and netting boxing in the goal, and a soccer ball is positioned directly in front of the right goal post at a distance of 14ft, to To determine what is the ground distance from the ball to the left goal post, the Pythagorean theorem must be applied through the following calculation:

A ^ 2 = B ^ 2 + C ^ 2

A ^ 2 = 14 ^ 2 + 48 ^ 2

A ^ 2 = 196 + 2,304

A = √2500

A = 50

Thus, the distance from the ball to the left post is 50 feet.

Answer/Step-by-step explanation

set of values that satisfy all equations in the system, and there can be many such answers for any given system. Answers are generally written in the form of an ordered pair: (x,y).

Answer:

5u-2

-_-_-_-_-_-_-_-_-

Answer:

About 9.1 yards tall.

Step-by-step explanation:

So, we can draw the right triangle shown below:

We want to find h.

Since we know the angle and the side adjacent to the angle and we wan to find the opposite side, we will use the tangent ratio:

[tex]\displaystyle \tan(x^\circ)=\frac{\text{Opposite}}{\text{Adjacent}}[/tex]

So:

[tex]\displaystyle \tan(20)=\frac{h}{25}[/tex]

Therefore:

[tex]\displaystyle h=25\tan(20)[/tex]

Use a calculator. Ensure your calculator is in the correct mode (degrees mode):

[tex]h\approx 9.1\text{ yards}[/tex]

The goal post is around 9.1 yards tall.

Answer:

15/12

Step-by-step explanation:

5/6+5/8(2)/3= 5/4=1 1/4

Decimal version: 1.25

Hope this helps (sorry if it’s a bit confusing)

My handwriting is not great so sorry if it’s not very clear but I got 1 1/4

Answer:

c

Step-by-step explanation:

Answer:

C. 63

Step-by-step explanation:

took the test

Answer:

x + 5y = 0

Step-by-step explanation:

y = mx + b

y = -1/5 x + b

1 = -1/5 (-5) + b

1 = 1 + b

b = 0

y = -1/5 x

5y = -x

x + 5y = 0

Answer:

I think it is 3????

Step-by-step explanation:

I'm not sure but 36 / 12 = 3 so yea.

Hopefully this is right!

Answer:

BM = 9.5

Step-by-step explanation:

4.4x2.5=11

so

3.8x2.5=9.5

Answer:

1:6

Step-by-step explanation:

you have one out of 6 chances to pick the yellow marble

Answer:

yellow is 1 out of 6

blue 1 of 5

Step-by-step explanation:

brainliest if u want

hope it helps

Answer:

m=5

Step-by-step explanation:

3(5)=15

therefore,

15-7=8

<3

Answer:

Add  7  to both sides of the equation

3 − 7 + 7 = 8 + 7

Simplify

3m = 8 + 7

3 = 1 5

Divide both sides of the equation by the same term

3 = 1 5

3 / 3  =  1 5 /3

The answer

= 5

Hope it helps you : )

Answer:

each sock is: 2.43

each jersey is: 6.75

Step-by-step explanation:

Total Sock Amount: 7.29

Total Jersey Amount: 13.50

Total Tax Amount: 1.03

Total Cost: 21.82

Answer:

Step-by-step explanation:

Alright all we need to know is to understand our brackets

So 3+{2×(8-4+6)}-5-{9+4-[3×(1-5)]}​

3+20-5-9+4-3(1-5)

Step 2

3+20-5-9+4-3(1-5)  Simplify

18-9+4-3(1-5)

Step 3

18-9+4-3(1-5)

13-3(1-5)

13-(-12) Here is the tricky part (We aren't going to subtract because the brackets multiply the equations

So,

13+12=25

Your answer is 25

Answer:  (1a) 250°  (1b) 70°    (2) see below

Step-by-step explanation:

1a) -110 + 360 (one rotation clockwise) = 250°

1b) 430 - 360 (one rotation counterclockwise) = 70°

2) sec Ф = -8/5    in Quadrant III

Quadrant III identifies that both sin (y) and cos (x) are negative.

sec = r/x --> r = 8, x = -5, and y = -√39

(Use Pythagorean Theorem x² + y² = r² to solve for y)

[tex]\sin\theta=\dfrac{y}{r}=\dfrac{-\sqrt{39}}{8}[/tex]              [tex]\csc\theta=\dfrac{r}{y}=\dfrac{-8}{\sqrt{39}}[/tex]  rationalized = [tex]\dfrac{-8\sqrt{39}}{39}[/tex]

[tex]\cos\theta=\dfrac{x}{r}=\dfrac{-5}{8}[/tex]                  [tex]\sec\theta=\dfrac{r}{x}=\dfrac{-8}{5}[/tex]  (GIVEN)

[tex]\tan\theta=\dfrac{y}{x}=\dfrac{\sqrt{39}}{5}[/tex]              [tex]\cot\theta=\dfrac{x}{y}=\dfrac{-5}{-\sqrt{39}}[/tex]  rationalized = [tex]=\dfrac{5\sqrt{39}}{39}[/tex]

NOTE THAT YOU ARE ALLOWED A MAXIMUM OF 3 QUESTIONS PER POST.  Please repost #3 and #4 as a different question and I will answer them.

Answer:

47,600

Step-by-step explanation:

hope this helps <3

Answer:

47,637

I hope this helped! +*♡

Answer:

y=7x

Step-by-step explanation:

The English translation of the question is

A reservoir was full at the end of May. In the month of June 3/10 of its reserves were consumed and at the end of July only half remained. What fraction of the reservoir was consumed during the month of July?

Answer:

1/5 of the Reservoir will be consumed in the month of July.    

Step-by-step explanation:

We are given

Full reservoir at the end of month May. In the month of June 3/10 of the reservoir was consumed.

Amount present in the Reservoir at the end of the month June will be = 1 -3/10

                                                                                                          = 7/10

Now this 7/10 of the Reservoir will be used for the next month which is July

It is given that at the end of July only 1/2 of the Reservoir is remained that means the amount that was left at the end of the Month June will be used for the month July. So the amount consumed in the month of July will be

    Amount consumed  =  7/10 - 1/2

                                     = 2/10 = 1/5

Therefore 1/5 of the reservoir will be consumed in the month of July.    

Answer:

I believe its A im not exactly sure though

Answer:

#2

Step-by-step explanation:

Answer:

BD = 30

Step-by-step explanation:

if it is a square, than all sides are equal

so if AC = 30, then BD = 30 as well