1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zhuklara [117]
3 years ago
14

I need help! ASAP!! please and thank you

Mathematics
1 answer:
Neko [114]3 years ago
8 0

Answer: The walking path around it.

Step-by-step explanation:

Remember the Pythagorean's theorem, for a triangle rectangle with catheti A and B, and with hypotenuse H, we have:

A^2 + B^2 = H^2

or

H = √(A^2 + B^2)

Here, A + B is the total distance for the path, while the hypotenuse is the distance for the bridge

Here we can see that:

A = 1170 ft

B = 520 ft

Then:

H = √( (520 ft)^2 + (1170 ft)^2) = 1280.4 ft

Now, let's compute the costs.

For the bridge, we know that each foot costs $11, then for 1280.4 ft the cost is:

Cost of the bridge = (1280.4)*$11 = $14,084.4

And for the walking path, the cost is $6 per foot, then the total cost of the path is:

Cost of the path = (520 ft + 1170 ft)*$6 = $10,140

We know that the bridge is preferred if it is within the range of $1500 for the path's cost.

This range is:

($10,140 - $1,500, $10,140 + $1,500) = ($8,640, $11,640)

Here we can see that the cost of the bridge does not belong to this range, (is higher) so the option we should recommend is the walking path around.

You might be interested in
Dividing with decimals
horrorfan [7]
Here's an example: I hope this helps you out

4 0
3 years ago
Amy ran 2/3 of a marathon. Beth ran 5/6 of a marathon. Who ran farther ? How much farther?
Ymorist [56]
2/3 is equal to 4/6. 

So, Beth ran further by 1/6 of the marathon
3 0
3 years ago
What is the area of this ^2
Ad libitum [116K]
<h2>Question:- Area of the given diagram</h2>

<h2>Answer :- </h2>

Divide the diagram as shown in attachment.

Now first calculate the area of the rectangle having side 1 and 12

So area = length ×breadth

Area = 1× 12 = 12 unit²

Now find the Area of the remaining triangle with sides 12,13,5 units

So

Area =  \frac{1}{2}  \times base  \times height \:

Now put the value as -> base= 5 and height= 12

Area =  \frac{1}{2}  \times base  \times height \:  \\ Area =  \frac{1}{2}  \times 5 \times 12 \\ Area =  \frac{1}{ \cancel2}  \times 5 \times  \cancel{12}^{ \:  \: 6}  \\ Area = 5 \times 6 \\ Area = 30 \: units^{2}

Now add both areas for your answer

Area{ \tiny{1}} = 12 {units}^{2}  \\ Area{ \tiny2} = 30 {units}^{2}  \\ Area{ \tiny{total}} = Area{ \tiny{1}} + Area{ \tiny{2}} \\ Area{ \tiny{total}} = 12 + 30 = 42 {units}^{2}

8 0
3 years ago
Can some one help with 18 and 19
bulgar [2K]
<span>By by pythagorean theorem
12 (squared) + r (</span>squared) = (8+r) squared<span>
so 144 + r ( </span>squared) = 64 + r (squared)<span> +16r
so solving for r:
144 -64 = r </span>squared –r squared<span> + 16r
80 = 16r
so r = 80/16= 5

the second is the same
21 </span>squared + r squared = (9 + r ) squared<span>
441 + r </span>squared = 81 + r squared<span> + 18r
441 – 81 = r </span>squared – r <span>squared</span><span> + 18r
r = 360/18 = 20</span>
5 0
3 years ago
Bob can shave a cat in 3 hours; Fred can do it in 4 hours. If they work together without wasting a ton of time like they always
kondaur [170]

Answer:

The answer to your question is 1 5/7 or 1.7 hours ≈ 1:43 min

Step-by-step explanation:

Data

Bob lasts 3 hours

Fred lasts 4 hours

Together = ?

Process

1.- Determine what they do in 1 hour

Bob = 1/3  in x hours   x/3

Fred = 1/4 in x hours   x/4

2.- Write the equation to this problem

         x/3 + x/4 = 1

3.- Solve it for x

       (4x + 3x)/12 = 1

                      7x = 12

                        x = 12/7

                        x = 1 5/7 or 1.7 hours ≈ 1:43 min

6 0
3 years ago
Other questions:
  • How do you write 0.74 as a fraction in simplest form?
    6·1 answer
  • Susan is searching for a new apartment. Her monthly salary is $1,800, and she wants to spend no more than 35% of her budget on r
    8·1 answer
  • Convert into slope intercept form?
    12·1 answer
  • I need a help with my homework someone can help me?
    13·2 answers
  • How do you solve these equations?
    13·1 answer
  • Jada flips 3 quarters. What is the probability that all 3 will land showing the same side?
    8·2 answers
  • F(x) = -2x^3 + 3(x + 2). Does this mean that it's f(3) = -39
    5·1 answer
  • Simplify<br> 5 x 5 squared
    12·2 answers
  • PLEASE HELP!!!!!<br> WILL MARK BRAINLIEST!!!!
    11·1 answer
  • Find the surface area of the pyramid. The side lengths of the base are equal.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!