Mathematics High School

A stone arch in a bridge forms a parabola described by the equation y = a(x - h)2 + k, where y is the height in feet of the arch above the water, x is the horizontal distance from the left end of the arch, a is a constant, and (h, k) is the vertex of the parabola.

Answers

Answer 1

Answer: The answer would be y = - 0.071 (x - 13)^2 + 12.

Step-by-step explanation:

The next answer will be 15ft.

Answer 2

Answer:

For edge the answers are:

y = -0.071(x - 13)^2 + 12

Then for the next question your answer is 15.

Step-by-step explanation:

Related Questions

Can someone please help me graph y = 2x - 7

Answers

Answer:

(0,-7) and (3.5,0) are where your dots will go

Step-by-step explanation:

Simplify the expression:
4 + 7(-7 + -9k)

Answers

Answer:

-63k - 45

Step-by-step explanation:

combine like terms

How do i get A and B ?

Answers

Answer:

a=60°

b=300°

Step-by-step explanation:

the triangle is equilateral so all angles are 60 °

a = 60°

b=360 - 60 =300°

Answer:

A is 60°, B is 300°

Step-by-step explanation:

If you look closely, you can tell that this circle is divided into 6 triangles, but there is only one showing. This triangle is 1/6 of the circle.

You can find B by find 1/6 of 360° and subtracting that from 360, (a full circle is 360°)

1/6 of 360° is 60°

360° - 60° = 300°, so B is 300°

Now lets find A. Triangles are 180°. This triangle is obviously an equilateral triangle, so the measurements will all be the same.

180 ÷ 3 is 60, so A is 60°

I hope this helped, please mark Brainliest, thank you!

What is the slope of the following points:

(–3, 10), (–3, 7)

Answers

Answer:

undefined

Step-by-step explanation:

Answer:

Undefined

Step-by-step explanation:

(7-10) / -3-(-3)

-3/ -3+3

-3/0

UNDEFINED!

What are all the equivalent representations of 10 x 10 x 10

Answers

10 to the third power, 1000, and hmm

Answer:

10³                                        

no need to thank me, it was easy

|x-3|+2<6
help please

Answers

Inequality form:
-1 < x < 7
Interval notation;
(-1,7)

yo if u need an bralest i got chu

Answers

Answer:

PLease

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

PLEASEEE SOMEONE HELP I WILL MARK BRAINLIEST please do step by step explanation!

Answers

27 x 1.25= 33.75
5 x 1.99= 9.95
1 x 1.50= 1.50
Then you add up the totals and get $45.20
Lastly you divide $45.20 by 26 students getting your answer of $1.738

What is the value of the expression 5(X+3) when X=-3?

Answers

Answer:

0

Step-by-step explanation:

5(x+3) replace x with -3

5(-3+3)

5(0)

0

HELP ME PLZZZ I NEED HELP WITH THIS

Answers

A , -5 F 10 dived by 2 ( hours) equals 5

Answer:

-5 degrees (the first one )

Step-by-step explanation:

Divide -10 by 2 to get the number of degrees in F were lowered in one hour like so:

-10 / 2

= -5

Therefore, the temperature dropped 5 degrees in one hour.

-2(4x - 2) < - 8x + 4

Answers

Answer:

Both sides are equal.

So less than symbol can't be use in this case.

Step-by-step explanation:

This problem has no solution until you change any elements correctly.

thanks..

???? - (-7) = 5
Help me please and Thank you

Answers

Answer:

-2

Step-by-step explanation:

x-1(-7)=5

x+7=5

-7 bot sides

-2

simplify
-3·-8


hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Answers

Answer:

24

Step-by-step explanation:

A negative integer times a negative integer is the same as a positive integer times a positive integer, so this would be the same as (8)(3) which is 24.

manny's cleaning supply store receives a mixture of 80% detergent and 20% water in 15 gallon buckets. manny would like a mixture of 60% detergent and 40% water in each 5 gallon bucket. how many gallons of pure water does manny add to each 5 gallon bucket? express your answer as a decimal to the nearest hundredth

Answers

Answer:

1.25

Thanks,

SunshineMadison101

Given m||n, find the value of x.

Answers

Answer:

x = 20

Step-by-step

Because the two angles are o the same line ( line t) we know that x+160 will equal 180 degrees, so to solve

180-160= 20


Write each decimal as a fraction in simplest form.
9. 0.008
10. -0.6
11. -2.05

Answers

9.1/125

10.-3/5

11. -2 1/20

Jamal needs to dig a ditch 15 yards long.
Jamal digs 7 yards in the morning and
another 3 yards after lunch. How much is left to dig
more of the ditch is left to dig?

Answers

Answer:

5 yards

Step-by-step explanation:

7y+3y=10yards

15yards-10yards=5yards

simplify 5(b – 4) + 12

Answers

Answer: 5b-8

Step-by-step explanation:

1-(2x+4)=4x+5 solution

Answers

The correct answer is x= -1.3

10 1/7 divide by 5 can you help me

Answers

Answer:

2.02857142857

Step-by-step explanation:

Find the sum of (-236) and 573

Answers

It’s 141 if that helps

Answer:

the answer is 337

Step-by-step explanation:

-236+573=337

POSSIBLE POINTS: 0.86 Marcus is trying to decide between a cable subscription and a satellite dish. The cable subscription has a $40 setup fee and costs an additional $38 per month. Marcus has $500 budgeted for cable. How many months (m) can he pay for the cable subscription? WRITE AN EQUATION THAT CAN BE USED TO FIND THE NUMBER OF MONTHS HE CAN PAY FOR THE CABLE SUBSCRIPTION​

Answers

Answer:

0.156

Step-by-step explanation:

step1. add 40 + 38 = 78

step2. divide 78 by 500 to get 0.156

hope im right

I need help on this plz

Answers

should be A..........

Answer:

b

Step-by-step explanation:

What is the y-intercept of a line that has a slope of –3 and passes through point (0, –7)?

Answers

Answer:

b=-7    or the y-intercept is -7

Step-by-step explanation:

-7= =3(0)+b

-7=b

Solve for value of y.

Answers

Answer:

y = 6

General Formulas and Concepts:

A box at an angle signifies a 90° angle.

The 2 angles that add up to 90° are called Complementary Angles

Step-by-step explanation:

Step 1: Set up equation

The 2 angles are Complementary Angles. They must add up to 90°.

(6y + 5) + (8y + 1) = 90

Step 2: Solve for y

Combine like terms:                         14y + 6 = 90Subtract 6 on both sides:                 14y = 84Divide both sides by 14:                    y = 6

Answer:

y = 6

Step-by-step explanation:

So, the two angles sum up to 90 degrees.

Based on that, form an equation;

6y + 5 + 8y + 1 = 90

simplify,

6y + 5 + 8y + 1 = 90

14y + 6 = 90

inverse operations,

14y + 6 = 90

      -6     -6

14y = 84

/14     /14

y = 6

50 POINTS please show the step by step process.I already know the answers i just the steps!!

1.Factor: 4x^2+28x-36

2.Factor: 125x^6-27y^15

3.Multiply: (4x-7)(5x-8)

Answers

Answer:

1.   4(x² + 7x - 9)2.  (5x² - 3y⁵) (25x⁴ + 15x²y⁵ + 9y¹⁰)3.  20x² - 67x + 56

Step-by-step explanation:

1.  factor 4x^2+28x-36

= 4x² + 28x - 36

re-write 36=4*9,  and 28=4*7

= 4x² + 4 * 7x - 4 * 9

factor out common term:

= 4(x² + 7x - 9)

2.  factor 125x^6-27y^15

= 125x⁶ - 27y¹⁵

=(5x²)³ - (3y⁵)₃

apply difference of cubes: x³-y³ = (x-y)(x²+xy+y²)

= (5x² - 36y⁵)(5²x⁴ + 5 * 3x²y⁵ + 3²y¹⁰)

refine:

= (5x² - 3y⁵) (25x⁴ + 15x²y⁵ + 9y¹⁰)

3. multiply (4x-7)(5x-8)

apply the FOIL method

= 4x * 5x + 4x (-8) + (-7) * 5x + (-7) (-8)

= 20x² - 67x + 56

A set of 4 consecutive even integers adds up to 68.

Answers

Answer:X=14,/ integers are-14,16,18,20

Step-by-step explanation:

John works at a factory and makes $11.25 an hour. This week he worked 45 hours
and last week he worked 39 hours. How much money did John make in the past 2
weeks?

Answers

Answer: $945

Step-by-step explanation: 11.25x39 is 438.75 and 11.25x45 is 506.25 and you add them together which is 945

So if he works for 45 hours and per hour he gets 11.25 then you would do 11.25x45=506.25 so then 11.25x39=438.75
So 506.25+438.75 so he made 945.00

What is the image of (-2,5) after a refection in the line y=3?

1. (-2, 1)
2. (8.53
3. (-6, 15)
4. (-1,2)
5. (1,8)​

Answers

(-2,1) hope this helps!

Please help me with this. First answer gets brainliest

Answers

Answer:

2 = 15 deg

3 = 75 deg

5= 15 deg

Step-by-step explanation:

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