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
s2008m [1.1K]
4 years ago
9

The arch support of a bridge can be modeled by y=−0.0012x^2, where x and y are measured in feet. Find the height and width of th

e arch.
Mathematics
1 answer:
natulia [17]4 years ago
6 0

Answer:

450 feet at ground level

Step-by-step explanation:

The width of the bridge at ground level will be where the function intercepts the x-axis also known as the roots or zeros of the function. They are found using the zero product property to set each factor equal to 0.

This means (x-225) = 0 and (x + 225) = 0. So x = -225, 225.

This means the width is the absolute value of |-225| + 225 since distance cannot be negative. This makes it 450 feet.

You might be interested in
Write an inequality to represent this situation: Nina wants to take at least $15 to the movies. How did you decide which inequal
Vera_Pavlovna [14]
15 is greater than or equal too m this is the symbol < and it has a line under it

6 0
4 years ago
8. All varieties of a clock are $3.20. Justin buys an alarm clock and a wall
krek1111 [17]

$3.20W + $3.20W = $6.40

6 0
3 years ago
The slope of a line perpendicular to y=-3x-4
Margarita [4]
<span>y=-3x-4
slope = 3
perpendicular to line then slope = 1/3

answer

</span>slope of a line perpendicular to <span>y=-3x-4 

</span><span>= 

1/3

</span>
7 0
4 years ago
Consider the three roads, where the length of Road 1 is 320 feet. What is the approximate length of Road 3? A. 118.7 feet B. 232
Scorpion4ik [409]

Answer:

D

Step-by-step explanation:

Use law of sines

320ft/sin(17) = x ft/sin(128)

x = 862.5

Find 17 degrees using 180 - 128 - 35 = 17

5 0
4 years ago
Use the equation k = x÷ y to find the constant of proportionality for the set of values
Lubov Fominskaja [6]

The constant of proportionality is 1/3

and three more values are

x       1        2        3        4        5        

y       3       6        9        12       15

<h3>Variation</h3>

From the question, we are to determine the constant of proportionality

The given equation is

k = x ÷ y

From the given information,

When x = 1, y = 3

∴ k = 1 ÷ 3

k = 1/3

Thus, the constant of proportionality is 1/3

Now, we will determine the values of y for the values x = 3, x = 4, and x = 5

Since

k = x ÷ y

Then,

y = x ÷ k

When x = 3

y = 3 ÷ 1/3

y = 3 × 3

y = 9

When x = 4

y = 4 ÷ 1/3

y = 4 × 3

y = 12

When x = 5

y = 5 ÷ 1/3

y = 5 × 3

y = 15

Hence, the constant of proportionality is 1/3

and three more values are

x       1        2        3        4        5        

y       3       6        9        12        15

Learn more on Variation here: brainly.com/question/19641181

#SPJ1

3 0
2 years ago
Other questions:
  • Which is greater??????????
    7·2 answers
  • What is the common difference in arithmetic sequence 10,8,6,4...? <br> 2<br> -2<br> 1/2<br> -1/2
    5·2 answers
  • Find the solution to the linear system by using the x - and y -intercepts.
    5·1 answer
  • Which fractions are equivalent to 1/5
    11·1 answer
  • Can anybody find the measure of the major arc ILK?<br><br><br> click on image for full picture
    10·1 answer
  • Peyton is a sprinter who can run the 40-yard dash in 4.5 seconds. He converts his speed into miles per hour, as shown below. Whi
    14·1 answer
  • John gets his first job working at an ice cream shop because he loves ice cream. He gets paid $9 per hour. Create a table to dem
    15·1 answer
  • What is the expirimental probability of rolling a number greater than 4
    13·1 answer
  • Rahul, a coach at a local school has collected data on his players. But in an accident he lost how many games each player partic
    10·1 answer
  • The line passing through the points (-3, 4) and (x, 2) is
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!