Mathematics College

A railroad tunnel is shaped like a semiellipse, as shown below.

A semiellipse is shown on the coordinate plane with vertices on the x axis and one point of intersection with the positive y axis.

The height of the tunnel at the center is 35 ft, and the vertical clearance must be 21 ft at a point 8 ft from the center. Find an equation for the ellipse.

Answers

Answer 1
Use mathpapa for this! You got it

Related Questions

I need the answer fast pls

Answers

Answer:

C. A = 0.5*d1*d2

D. A = bh

Step-by-step explanation:

The area of the rhombus can be found depending on what information is made available to us.

If given the lengths of the two diagonals (d1 and d2) of a rhombus which bisect each other, therefore, the formula for finding the area would be:

A = 0.5*d1*d2

Also, if we are given the height (h) and side (b), the formula to use would be:

A = bh

HELP ME I CAN GIVE BRAINLIEST

Answers

Answer:

For Q. 17 I believe it's "the function has a minimum at -1" take this answer with a grain of salt but the other three seem to be true and I don't know how to solve this one so I'm assuming it's the false one.

I will give Brainiest if you are right

Answers

The answer is J. When the circle on the graph is filled in, that means that number is included in the solution.

25x </= 300

Divide both sides by 25

x </= 12

Answer: J

Number line J. beast represents the solution to the inequality.

Step-by-step explanation:

Have a nice day!

Give the other person brainliest! :-)

You have 24 seashells and give 8 seashells to your sister. You arrange the rest of the seashells into 4 equal rows. Which steps can you use to find the number of seashells in each row?

Step 1: 24 – 8 = 16
Step 2: 16 × 4 = 64
There are 64 seashells in each row.


Step 1: 24 – 8 = 16
Step 2: 16 ÷ 4 = 4
There are 4 seashells in each row.


Step 1: 24 + 8 = 32
Step 2: 32 ÷ 4 = 8
There are 8 seashells in each row.


Step 1: 8 ÷ 4 = 2
Step 2: 24 – 2 = 22
There are 22 seashells in each row.

Answers

Answer:

I'm sorry dont leave me I need you here with me now

I'm sorry that are love is gone the love is gone☹☹


A brick has a mass of 18.3 kg and a volume of 890 cm3.
Evaluate the density of the brick in g/cm3 rounded to 3 significant figures.
1 g/cm3

Answers

Answer

Calculate Volume ... the length and mass measurements all had 3 significant figures.

Step-by-step explanation:

G O O G L E

(2/3x +1 = 5 -8) solve for x no links

Answers

2/3x+1=5-8

Combine like terms:

2/3x+1=-3

Subtract 1 from both sides

2/3x=-4

Multiply 3x from both sides

2=-12x

Now divide -12 from both sides
=-2/12

Simplify and you get -1/6 for your answer

Find the value of x.

Answers

The correct answer is 23

Ariana Grande put her 7 rings in a rectangular plate that had an area of 54 square inches. If the length of the is 12 inches, what is the width

Answers

Answer:

4.5

Step-by-step explanation:

54/12=4.5

question in image attached

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Answer:

16.97

Step-by-step explanation:

24 in
70 in
What is the length of the hypotenuse?

Answers

Answer:74inch

Step-by-step explanation:

Assuming this is a right triangle you do pythogreom theorm and get 74 inches

HELPPPPPPPP!!!!!!!!!!! Pleaseeeeeee!!!!!!!

Answers

Answer:

C

Step-by-step explanation:

Sorry if this is wrong.

I don’t know if it’s c or a :////

Determine whether the function are inverse. F(x)=6x+l;g(x)=6x-1

Answers

Nope, inverse of first function is
f^-1(x)= (x-1)/6

Use a ratio box to solve this problem. The price of one model of car increased 10 percent in one year. If the price this year is $17,600,
what was the price last year

Answers

Answer:

$15,840

Step-by-step explanation:

10% of 17600 = 1760

17600 - 1760 = 15840

Probability distribution

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Answer:

a) The value of q is 0.2.

b) E(X) = 1.85.

Step-by-step explanation:

Question a:

The sum of all the probabilities must be 1. So

[tex]0.3 + x + 0.1 + 0.15 + 0.25 = 1[/tex]

[tex]x + 0.8 = 1[/tex]

[tex]x = 0.2[/tex]

The value of q is 0.2.

Question b:

Multiplication of each value of x by its probability. So

[tex]E(X) = 0*0.3 + 1*0.2 + 2*0.1 + 3*0.15 + 4*0.25 = 1.85[/tex]

So the answer is E(X) = 1.85.

In how many different ways can a red, blue, and green marker be arranged in a tray?

Answers

Answer:

6 ways.

There are one red, one blue and one green maker. So there are 3 markers they are in 3! = 3×2 = 6 ways.

Please mark brainliest! <3

Please help!!
What is the area, in square inches, of the figure shown here?
A- 10 in²
B- 14 in²
C- 16 in²
D- 20 in²

Answers

Answer:

D. 20 inches

Step-by-step explanation:

1.
A diagram of Ryan's yard is shown.
-12 ft
10 ft
14 ft
5 ft
Which expression can Ryan use to find the total
area of his yard?
A. (10+4)(12+5)
B
(10 + 4) X (12 - 5)
C. (12 x 10) - (5 x 4)
D. (12 x 10) + (5 x 4)

Answers

Answer:

D. (12 x 10) + (5 x 4)

Step-by-step explanation:

If you draw a line separating the big square from the little square,  you have a 12 x 10 large square, and a 5 x 4 smaller square. We know the second dimension of the small square because the large square takes 10ft off of the total length of 4ft.

Calculate both areas separately, then add them together.

Find the value of y.
960
1660
y = [? ]°

Answers

Answer:

y = 48°

Step-by-step explanation:

The value of an inscribed angle is half the value of the arc it subtends.

The angle marked x subtends the arc marked 66°, so has a value of ...

x = 66°/2

x = 33°

The value of y is similarly found.

y = 96°/2

y = 48°

The angle marked with a dot is an external angle of the triangle, so is the sum of the remote internal angles, x and y:

dot angle = x + y = 33° +48° = 81°

Of course, angle z is the supplement of this:

z = 180° -81°  

z = 99°

Write your Answer here please i need this please

Answers

Answer:

A

Step-by-step explanation:

300-50-70+20

Answer:

I believe it would be answer A.

Step-by-step explanation:

When depositing, you're make an addition. Withdrawing, is removing. Making these checks had removed about 120 dollars out of his bank account, meaning the equation would be 300-50-70+20.

Hope this helps! :D

PLEASE HELP MEEEEEEEE I HAVE 15 MINUTES LEFT

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THE ANSWER SHOULD BE C AND B

Can someone help me with this please

Answers

Answer:

You multiply them 2x each time.

Step-by-step explanation:

Multiply

X= 6 2/3 , 9, 12
Only serious answers plzzzzz

Answers

Answer:

x = 9

Step-by-step explanation:

4(5 + 4) = 3(x + 3) => Intersecting secants theorem

4(9) = 3(x + 3)

Open bracket by applying distributive property

36 = 3x + 9

Subtract 9 from each side

36 - 9 = 3x + 9 - 9

27 = 3x

Divide both sides by 3

27/3 = 3x/3

9 = x

x = 9

If Shelly makes $25 an hour and gets a 15% decrease in her pay, what is her new hourly rate?

Answers

If you are trying to find the new hourly pay after the 15% decrease, you will multiply the $25 and 0.15 to get 3.75. After that, you would subtract 3.75 from the $25 and you would get $21.25. So the new hourly pay is $21.75.

PLEASE! TEST QUESTION

Jenelle invested $17000 in two mutual funds. Fund A earned 4% profit during the first year, while Fund B suffered a 1.5% loss. If she received a total of $460 profit, how much had she invested in each mutual fund?

Jenelle invested $_____ into Fund A.
Jenelle invested $_____ into Fund B.

Answers

Answer:

Jenelle invested $ 13,000 in Fund A and $ 4,000 in Fund B.

Step-by-step explanation:

Given that Jenelle invested $ 17000 in two mutual funds, and Fund A earned 4% profit during the first year, while Fund B suffered a 1.5% loss, if she received a total of $ 460 profit, to determine how much had she invested in each mutual fund, the following calculation must be performed:

17000 x 0.04 - 0 x 0.015 = 680

15000 x 0.04 - 2000 x 0.015 = 570

10,000 x 0.04 - 7000 x 0.015 = 295

12500 x 0.04 - 4500 x 0.015 = 432.5

13000 x 0.04 - 4000 x 0.015 = 460

Therefore, Jenelle invested $ 13,000 in Fund A and $ 4,000 in Fund B.

Solve the division equation using the model. (2 points)

two wholes partitioned into three equal parts with the fraction one third in each part. Below is the equation two divided by one third equals blank
two sixths
3
6
one sixth

Answers

3 16
Explanation
Factor the numerator and denominator and cancel the common factors.

Answer:

1/6

Step-by-step explanation:

in the model it shows 6 spots, 1 of those 6 are colored in.

ANSWER ASAP DONT SEND A FILE. IS THIS SHAPE A ROTATION, REFLECTION,TRANSLATION, DILATION OR NONE????

Answers

Answer:

translation

Step-by-step explanation:

Answer:

I think it's dilation or none

Step-by-step explanation:

Four classmates collect data by conducting a poll. They
ask students chosen at random how many days a week
they usually have homework.
.
Taylor interviews 30 students.
.
Hunter interviews 40 students.
• Grace interviews 20 students.
.
Aidan interviews 70 students.
Whose results are probably the most trustworthy?
A. Taylor's
B. Grace's
C. Hunter's
D. Aidan's

Answers

D. Aidan’s

The larger the sample size (number of people asked), the more accurate the results generally are, due to the law of large numbers.

Which expression shows 6a + 8b + 10 written as the product of the GCF times a sum?

Answers

Answer::112

Step-by-step explanation:

3. Which two expressions are equivalent for any value of y? *
O A. 3(3y + 3) and 6y + 6
B. 3(3y + 3) and 9y + 6
O c. 9(y + 3) and 12 + 9y
O D. 9(y + 3) and 27 + 9y

Answers

Given:

The pair of expressions in the options.

To find:

The two expressions are equivalent for any value of y.

Solution:

Two expressions are equivalent for any value of y, iff they are equivalent.

[tex]3(3y+3)=3(3y)+3(3)[/tex]

[tex]3(3y+3)=9y+9[/tex]

Clearly, [tex]3(3y+3)[/tex] is not equivalent to [tex]6y+6[/tex] or [tex]9y+6[/tex]. So, options A and B are incorrect.

[tex]9(y+3)=9(y)+9(3)[/tex]

[tex]9(y+3)=9y+27[/tex]

[tex]9(y+3)=27+9y[/tex]

The expression [tex]9(y+3)[/tex] is not equivalent to [tex]12+9y[/tex]. So, option C is incorrect.

The expression [tex]9(y+3)[/tex] is equivalent to [tex]27+9y[/tex].

Therefore, the correct option is D.

What type of angle is shown? A right angle obtuse angle acute angle Next​

Answers

Answer:

obtuse

Step-by-step explanation:

Answer:

b :)

Step-by-step explanation:

None of the other answers make sense. And acute is smaller than a 90 and obtuse is bigger than a 90 if I remember correctly.

Hope this helps!

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