A billiard ball starts 86\,\text{cm}86cm86, start text, c, m, end text from the corner pocket, as shown. The ball rolls 120\,\text{cm}120cm120, start text, c, m, end text in another direction, hits a rail, and rolls another 100\, \text{cm}100cm100, start text, c, m, end text into the pocket. What is the angle between the paths before and after the ball hits the rail? Do not round during your calculations. Round your final answer to the nearest degree.

Answers

Answer 1

Answer:

45 Degrees

Step-by-step explanation:

Khan Academy


Related Questions

The base of an isosceles triangle is 7cm long. Each of the other sides is x cm long. What will be the expression for its perimeter?

Answers

Answer:

P = 2x + 7

Step-by-step explanation:

Justin can run 2 laps in 1 minute. Which equation below represents this situation?
a) y = x/2
b) x = 2y
c) y = x + 2
d) y = 2x

Answers

The answer is Ahope this helps

36
Jacinta compares the volume of two boxes. Both boxes have a width of 2.5 inches, and a height of 10 inches. The
larger box has a length of 8 inches. The smaller box has a length that is 75% of the length of the larger box.
(a)
Volume of large box =
<
(b) Volume of small box =
(c) What is the difference in the volumes of the two boxes?
(d)
Which units should be used for each of these answers?

Answers

Step-by-step explanation:

w(idth) = 2.5 inches for both boxes

h(eight) = 10 inches for both boxes

l(ength)l(arge) = 8 inches

l(ength)s(mall) = 75% of ll (=> of 8 inches)

=> ls = 8 × 75/100 = 2 × 75/25 = 2 × 3 = 6 inches

vl (volume large) = 8 × 2.5 × 10 = 200 inches³

vs (volume small) = 6 × 2.5 × 10 = 150 inches³

the difference of these two volumes is 50 inches³

the units to be used is cubic inches (inches³). we are talking about volumes. not lengths (inches), not areas (inches²).

the reason - for a volume we need to multiply 3 lengths (measured in simple inches). so, inch multiplied by inch is inch². this multiplied by inch again is then inch³.

on a map, the scale shown is 1 inch : 5 miles. if an island is 2.5 square inches on the map, what is the actual are of the island

Answers

Answer:

1 in^2 = 5 mi * 5 mi = 25 mi^2

2.5 in^2 (25 mi^2/in^2) = 62.5 mi^2

Step-by-step explanation:

What is 13^c^11?
O A. 91
OB. 105
C. 78
D. 120

Answers

Answer:

78

Step-by-step explanation:

13! / 11! · 2!

13 x 12 / 2

13 x 6 = 78

There would be 78 possible combinations

Instructions: Find the missing length indicated.
I NEED HELP, NO LINKS PLEASE
can you explain please

Answers

Answer:

136

Step-by-step explanation:

First you need to know that there are 2 triangles in the image.

One triangle (the smaller one) has sides that measure 119 (the side) and 56 (the bottom).

The other triangle (the bigger one) has sides that measure 119 + ? (the side) and 120 (the bottom).

Let's replace the 119 + ? with an x so that the entire side length of the big triangle measures x.

1. Make a proportion using ratios. For the ratios of each triangle, we can do side over bottom lengths and then set them equal to each other.

119  =    x              sides

56        120            bottoms

2. You can cross multiply, or just solve for x.

119*120= 14280

14280/56= 255

3. Then subtract the total length minus 119 to find the question mark

255 - 119 = 136

State the Domain & the Range.
g(x) = |x – 1| + 2
Domain:
Range:

Answers

Answer:

domain: (-oo,oo)

range:[2,oo)

HIHI PLS help ;( having trouble </3

it says "The graph of the inequality y>-1/2x-2 should have the test point 0,0 shaded. true or false"

THANK YOU ヽ(=^・ω・^=)丿​

Answers

Answer:

True

Step-by-step explanation:

Substitute in x = 0 and y = 0.  If the statement is true, then (0, 0) is shaded.

y > -1/2x - 2

0 > -1/2(0) - 2 = -2

0 > -2 is true, so (0, 0) is shaded

HOW TO DO THIS QUESTION PLEASE ​

Answers

9514 1404 393

Answer:

  £6/h

Step-by-step explanation:

Molly is paid £280 for 35 hours' work, so

  £280/(35 h) = £8/h

In the next 5 hours, her pay jumps to £350, so she earns at a rate of ...

  (£350 -280)/(5 h) = £70/(5 h) = £14/h

The difference in her pay rates is £14/h -£8/h = £6 per hour.

Isabella has already baked 4 pies, and she can bake 2 pies with each additional cup of sugar she buys. Write an equation that shows the relationship between the additional cups of sugar x and the number of pies y.

Answers

Answer:

It would be y = 2x+4

Step-by-step explanation:

This is because Isabella has started with 4 baked pies and is gaining additional pies with in amounts of 2 pies.

With this, 4 would be by itself and 2 would be attached to the variable x for the unknown amount of additional pies.

Lastly, you would have this all equaling y, as y is the total amount of pies.

Please help??!!!!!!!!!!!!!!!!

Answers

Answer: 2 (y=x/3 -2)

Explanation: I’m pretty sure that the right answer

4/9 = ?/?

+ 5/18 = ?/?
___________
?/?

Answers

Answer:

+6/27=?/?

Step-by-step explanation:

+6/27=?/? will be the next number as the patter keeps increasing the numerator by 1 and denominator by 9

Can some help me with my delta math I’m failing my math class

Answers

Answer:

Same

Step-by-step explanation:

Answer:

same

Step-by-step explanation:

A Cone and Cylinder have the same radius and height. If the Cylinder’s volume is 363 cm3 . What is the Cone’s volume?

Answers

ok um 213=89Step-by-step explanation:ummmmmmmmmm

What is the radius of a hemisphere with a volume of 38153 in”, to the nearest tenth
of an inch?

Answers

Answer:

26.3

Step-by-step explanation:

Delta Math

The radius of a hemisphere with a volume of [tex]38153[/tex] in", to the nearest tenth of an inch is [tex]26.3[/tex].

What is radius?

A circle's or sphere's radius is any line segment that connects the object's centre to its perimeter in classical geometry; in more contemporary usage, it is also the length of those line segments.

The word "radius" is derived from the Latin word "radius," which also refers to the spoke of a chariot wheel. Use the equation  [tex]r =\frac{D}{2}[/tex]  to determine the radius, which is equal to half the diameter. This is the same process used to determine a circle's radius from its diameter.

A hemisphere's volume is equal to  [tex]\frac{2}{3} \pi r^3[/tex]  cubic units. Where is an estimated constant with a value of [tex]3.14[/tex]. The hemisphere's radius is denoted by "r."

Required calculations are:

V = r

r = radius.

Given, V = 38153 in³

[tex]38153 = \frac{2}{3} \pi r^3[/tex]

[tex]r^3 = \frac{3 \times 38153}{2 \times \pi }[/tex]

[tex]r = 3\sqrt{\frac{3 \times 38153}{2 \times \pi }}[/tex]

r =26.3 in

Therefore, the radius of a hemisphere with a volume of [tex]38153[/tex] in", to the nearest tenth of an inch is [tex]26.3[/tex].

Learn more about radius from here:

https://brainly.com/question/13449316

#SPJ2

On a map, 1 inch equals 15 miles. Two cities are 5 inches apart on the map. What is the actual distance between the cities? The actual distance between the cities is miles.

Answers

Answer:

75 miles

Step-by-step explanation:

You have to just multiply 15 by 5.

1*5 inches=15*5 miles

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP


Answers

i’m pretty sure it’s C


Please help me on this

Answers

the first one is A  

the second one is D

none of the above - correct answer is root 133. there has to be a typo I think. if they force you to choose do C. -i give the props to the other guy who answerd this question

PLEASE HELP































I will give away 100 points to right answer

Answers

Answer:

48 yd^2

Step-by-step explanation:

We can cut this shape into 4 squares which areas are all 4x3 or 12. Therefore, we add 12 four times to get 48.

If this helps please mark as brainliest

Find the polynomial of least degree to be added to 6x^2+8x^3+17x^2+12x+7 so that 3x^2+4x+1 is a factor. Class ten questions

Answers

Hope that really helps you

Past data indicate that the amount of money contributed by the working residents of a large city to a volunteer rescue squad is a normal random variable with a standard deviation of $1.40. It has been suggested that the contributions to the rescue squad from just the employees of the sanitation department are much more variable. If the contributions of a random sample of 12 employees from the sanitation department have a standard deviation of $1.75, can we conclude at the 0.01 level of significance that the standard deviation of the contributions of all sanitation workers is greater than that of all workers living in the city?

Answers

Answer:

We fail to reject the Null and conclude that the standard deviation of the contributions of all sanitation workers is not greater than that of all workers living in the city.

Step-by-step explanation:

σ = 1.40 ; σ² = 1.40² = 1.96

H0 : σ² = 1.96

H0 : σ² > 1.96

Given that:

Sample size, n = 12

Population Standard deviation, σ = 1.40

Sample standard deviation, s = 1.75

α = 0.01

The test statistic :

χ² = [(n-1)s²] ÷ σ²

χ² = [(12 - 1) * 1.75²] ÷ 1.40²

χ² = (11 * 3.0625) ÷ 1.96

χ² = 33.6875 / 1.96

χ² = 17.1875

χ² = 17.19

Using the Pvalue from Chisquare score calculator;

df = n - 1 ; 12 - 1 = 11

Pvalue ; χ²(17.19, 11) = 0.10238

Since Pvalue > α ; We fail to reject the Null and conclude that the standard deviation of the contributions of all sanitation workers is not greater than that of all workers living in the city.

what’s the equation for this graph pls help me :)

Answers

Answer:

y=-1/8x

Step-by-step explanation:

#11 Please answer the question

Answers

The answer to this is D. 134

hello please help i’ll give brainliest

Answers

I think it’s the 2 one

Answer:c

Step-by-step explanation:

What is the surface area?

Answers

Answer:

148

Step-by-step explanation:

8. Which of the following statements is not true about the graph shown?
F. The simplified ratio of the rise to the run of each triangle is 1/2
G. The slope of the line is 1/2
H. The slope of the line is - 1/2
I. The two triangles shown are similar.

Answers

Answer is h for this blrrddd


Is it possible for two lines with negative slopes to be perpendicular? Justify your answer.

Answers

Answer:

No

Step-by-step explanation:

The slopes of perpendicular lines must always be the negative reciprocal of each other. If one slope is negative, for the other to be perpendicular to it, it must be positive, and vise versa.

Answer:

No

Step-by-step explanation:

Interesting question. Subtle.

The formula for two lines to be perpendicular is m1 * m1 = -1 That means that two lines cannot be minus -- only 1 of them can be. The reason is that if both were minus when multiplied together would give a positive result -- not minus one. For example, suppose you have

y = x + 2  

y = 2x + 3.

These 2 lines will cross and they are not parallel, but neither are they perpendicular. I'm not going to solve this to find out where they cross -- that's not what you are asking.

Now suppose you have two other lines

y = - 2x + 3

y = 1/2 x + 1

These two lines should be perpendicular

-2 * 1/2 =  - 1 which is the condition of perpendicular.

Separate graphs have been uploaded to help you understand.

Errol collected some figures that he calls sukies. Which figure is a sukie?​

Answers

Its non of the above. Though I did have a question like that, if there is a choice below the square, that has the following properties, that must be the answer:

7 sides

1 right angel

______________________________________________________

But if you are talking about it being 1 of the 2, its non of the 2 that is in the picture. The option below square must be the answer if I am right according to what I had.

Hope it helps ! The things that I told you about the figure is the only way I can tell you. Sorry, but have a great day and good luck.

Copy each segment.Then construct its perpendicular bisector



(help plz i gift a crown​

Answers

Answer:no explanation ?

Step-by-step explanation:

the distance between two towns is 120 km there are approximately 8 km in five miles which measurement is closest to the number of miles between these two towns​

Answers

Answer:

about 75

Step-by-step explanation:

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