If a car goes around a turn too quickly, it can leave tracks that form an arc of a circle. By finding the radius of the circle, accident investigators can estimate the speed of the car. To find the radius, accident investigators choose points A and B on the tire marks. Then, the investigators find the midpoint C of AB¯¯¯¯¯¯¯¯. Use the diagram to find the radius r of the circle. Round your answer to the nearest tenth.

Answers

Answer 1

Answer:

155.7

Step-by-step explanation:

Use what you know.

Segment AC is 130 ft

Segment CD is 70ft

If you use the Pythagorean Theorem, in this case being  =  +

To find segment CE, you would do r-70

So,  =  +

= 16,900 +  -140r + 4900

Add the -140r to the left side and then get rid of the two . Then Add 16,900 and 4900 together

You'll end up with 140r = 21,800

Divide 140 on each side.

Your final answer will be 155.7 (rounded to the nearest tenth)


Related Questions

Find the interquartile range (IQR) of the data plot below

Answers

Answer:

3.5

Step-by-step explanation:

0 1 1 3 3 3 4 5 7

median= 3

Q1= 1

Q3= 4.5

4.5-1= 3.5

Answer:3.5

0,1,1,3,3,3,4,5,7

Can someone help me please

Answers

Answer:

y = 2/3x +4

Step-by-step explanation:

The y intercept is where the line crosses the y axis

y intercept =4

We can find the slope using two points on the line

(0,4) and (3,6)

m = (y2-y1)/(x2-x1)

   = (6-4)/(3-0)

   = 2/3

The equation of a line in slope intercept form is

y = mx+b where m is the slope and b is the y intercept

y = 2/3x +4

Answer:

y = 2/3x +4

Step-by-step explanation:

let the 2 unknown be a and b

X = 0, Y = 4 -> 4 = 0*a+b -> b = 4

Y =0, X = -6  -> 0 = -6*a + 4 -> a = -4/-6 = 2/3

-> y = 2/3x +4

Could you answers the question?

Answers

1.Austion bc he is taking more time
2. 1/2 of the stair case
3.the whole stair case
4.Dylan
5. Dylan he takes the same jumps just skips steps and jumps further and higher

3. A boat is travelling from Point C toward Point D, which is on the shoreline.
The shoreline is represented by the line through Point A and Point B.
Determine whether the path from C to D is perpendicular to the shoreline. A to B.
Justify your answer
A(0,7) B(8,-5) C(-3,-8) D(6,-2)

Answers

Answer:

Yes, lines CD & AB are perpendicular

Step-by-step explanation:

AB slope: y = -12/8x + 7

CD slope: y = 6/9x - 6

Once the slopes are simplified:

AB: -3/2

CD: 2/3

Hope this helps!

A city has an elevation of –752 feet. Which statement describes the city’s elevation?
–752 above sea level
–752 below sea level
752 above sea level
752 below sea level

Answers

Answer:

752 bellow sea just did that

Answer:

Its 752 below see level!

Step-by-step explanation:

I am doing the assignment right now and got it right!, if you want can you guys mark brainliest that would help a lot!!

Area and perimeter please

Answers

Answer:

185.68 for perimeter

1652.16 for area

Step-by-step explanation:

Please give me brainliest i hope you do well.!

There are only about 400,000 African elephants left in the world today. They are
classified as endangered by the International Union for Conservation of Nature, and
the population continues to decrease by 9% per year. What will the population of
African elephants be in fifty years?

Answers

Answer:

In 50 years there'll be approximately 3582 elephants.

Step-by-step explanation:

If they are decreasing at a rate of 9% per year, it means it's population by year is:

population(0) = 400000

population(1) = population(0)*(100% - 9%) = population(0)*(91%)

population(2) = population(1)*(91%) = population(0)*(91%)*(91%) = population(0)*(91%)²

population(3) = population(2)*(91%) = population(0)*(91%)²*(91%) = population(0)*(91%)³

And so on, so the number of population as years passes is:

population(n) = population(0)*(91/100)^n

In this case we want to know the population of elephants when n = 50, so we have:

population(50) = 400000*(0.91)^50 = 3582.033

In 50 years there'll be approximately 3582 elephants.

Five more than twice a number is less than 20. If the number is a whole number, what could the number be?
A. 1,2,3,4,6,7,8
B. 2,3,4,5,6,7,8
C. 1,2,3,4,5,6,7
D. 4,5,6,7,8,9,10

Answers

Answer:

Hello,

Answer : C.

Step-by-step explanation:

The whole number is X.

5 + 2 X < 20

2 X < 15

X < 7.5

X = 1 or X = 2 or X = 3 or X = 4 or X = 5 or X = 6 or X = 7

If the measures of two angles add up to 90

Answers

Answer:

complementary angles

Step-by-step explanation:

If the measures of two angles add up to 90 then they are complementary angles

help me fill in the blanks pleasee

Answers

Answers and Step-by-step explanations:

Let's look at the first row:

cost = _______ + _______ * (monthly payment)

The first blank should be the "down payment" because this is the initial, constant value that is paid. The second blank should be the "number of months" because this way, when multiplied by the actual amount each payment is (monthly payment), then we get the total amount paid during those months.

So, we have:

cost = (down payment) + (number of months) * (monthly payment)

Now for the second row, we just plug in numbers and variables:

335 = 50 + 6 * p

Finally, we can solve for p:

335  = 50 + 6p

6p = 285

p = $47.50

Answer:

Cost = down payment + no. of monthly payments × monthly payment

335 = 50 + 6 × p

285 = 6p

p = 47.5

‘‘3 more than the product of 7 and a number x is less than 24’’.
Write an inequality for the statement above . find the solution for x.

Answers

Answer:

the inequality is 3+7(x)<24

x=x < 3 2/7

Step-by-step explanation:

because...

3 + 7x < 26

7x < 23

x < 23/7

x < 3 2/7

Please help!! I can confused on which choice is the correct answer.

Answers

Answer:

cba is a secant, although the point barely goes through c

Step-by-step explanation:

a secant is a straight line that intersects a curve at 2 or more points. :)

Answer:

It's the last one, CBA is a secant.

Step-by-step explanation:

A secant means that it's a line or figure that goes through a shape. CBA is going through circle O.

Find the mean, median, mode, and range of the data:
{17, 2, 16, 3, 13,5,7,8,9, 11, 5, 2, 1,20}

Answers

Answer:

median:8 mean:199 that is all i know i might be wrong

Step-by-step explanation:

Mean: 8.5
Find the average:

17+2+16 +3+13+5+7+8+9+11+5+2+1+20=119

119/14=8.5

Median: 7.5
Find the middle number:
17, 2, 16, 3, 13, 5, 7, 8, 9, 11, 5, 2, 1, 20

Put them in order (smallest to biggest):
1, 2, 2, 3, 5, 5, 7, 8, 9, 11, 13, 16, 17, 20

Find middle number(s):
7, 8.. In this situation sense there are two middle numbers, find the average of the two:
7+8=15, 15/2=7.5

Mode: 2,5
Find the most common occurring number (there can be more than one):
2 and 5 appear the most

Hope this helps!!


HOW COULD YOU USE A GRAPH TO SHOW WHETHER THE DATA ARE IN A PROPORTIONAL RELATIONSHIP

Answers

Answer:

If the graphs are parallel they are porportional

Step-by-step explanation:

Answer:

The best way to show and explain direct proportional relationships is by graphing two sets of related quantities. If the relation is proportional, the graph will form a straight line that passes through the origin.

Step-by-step explanation:

Please mark me most brainly... :)

solve the division problem -1 3/5 diveded by (-2/3 writ the answer as a mixed number

Answers

Answer: 2 2/5

Turn -1 3/5 into an Improper Fraction

Multiply -1×5 and get -5. Now add 3 and get -8.

-1 3/5 = -8/5

Do Keep Change Flip

Keep: -8/5

Change: ÷ into ×

Flip: -2/3 into -3/2

Multiply

-8/5×-3/2=12/5

Simplify

12/5 = 2 2/5

Answer:

2 2/5

Step-by-step explanation:

see attached

club owns.
Sort the data from least to greatest.
0
0
0
1
2
2.
4.
5
7.
Find the interquartile range (IQR) of the data set.
remote controllers

Answers

5



1. Order data (least you greatest)
2. Find median of all of the numbers
3. Separate Q1 Q2 Q3
4. Find the median of Q1 & Q3
5. Formula for IQR: The median of Q3 - the median of Q1

Triangle XYZ is a right triangle.

Use the drop downs to determine the length of the legs of the right triangle.

What is the length of Side X Z?

What is the length of Size Y Z?

Answers

Answer:

What is the length of Side X Z?

✔ 5

What is the length of Size Y Z?

✔ 6

The length of side XZ is 5 units.

The length of side YZ is 6 units.

What is a triangle?

A triangle is a 2-D figure with three sides and three angles.

The sum of the angles is 180 degrees.

We can have an obtuse triangle, an acute triangle, or a right triangle.

We have,

To find the length of side XZ, we can use the distance formula, which is:

[tex]d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}[/tex]

Substituting the coordinates of X (-2, 4) and Z (3, 4), we get:

[tex]d(XZ) = \sqrt{(3 - (-2))^2 + (4 - 4)^2}\\= \sqrt{5^2 + 0^2}\\= \sqrt{25}\\= 5[/tex]

The length of side XZ is 5 units.

To find the length of side YZ, we can again use the distance formula with the coordinates of Y (3, -2) and Z (3, 4):

[tex]d(YZ) = \sqrt{(3 - 3)^2 + (4 - (-2))^2}\\= \sqrt{0^2 + 6^2}\\= \sqrt(36)\\= 6[/tex]

The length of side YZ is 6 units.

Thus,

The length of side XZ is 5 units.

The length of side YZ is 6 units.

Learn more about triangles here:

https://brainly.com/question/25950519

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multiply. write the result in scientific notation. (2.3x10^1)(7x10^6)

Answers

[tex] (2.3 \times 10^1) \times (7 \times 10^6)[/tex]

[tex](2.3 \times 7) \times (1 {0}^{1} \times {10}^{6} )[/tex]

[tex]16.1 \times {10}^{1 + 6} [/tex]

[tex]16.1 \times {10}^{7} [/tex]

The product of the given numbers is 1.61 × 10⁸.

What is meant by Scientific Notation?

Scientific notation is a way of writing a large number or small number with many digits in a simpler form using the power of 10.

For example, 30,000 can be written as 3 × 10⁴.

Given that,

We have to multiply the numbers (2.3 x 10¹) (7 x 10⁶).

The numbers in scientific notation uses exponents.

So we have to use the product rule of exponents here.

(2.3 x 10¹) (7 x 10⁶) = (2.3 × 7) × (10¹ x 10⁶)

                              = 16.1 × (10¹ x 10⁶)

We have the product rule, xᵃ . xᵇ = xᵃ⁺ᵇ

So the product is,

(2.3 x 10¹) (7 x 10⁶) = 16.1 × (10¹⁺⁶)

                              = 16.1 × 10⁷

                              = 1.61 × 10⁸

Hence the product in scientific notation is 1.61 × 10⁸.

Learn more about Scientific Notation here :

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Which equation shows the same relationship as 42 = 7 / 1/6

Answers

Answer:

42 × 1/6 = 7

Step-by-step explanation:

42 multiplied by 1/6 equals 7 since 42 divided by 6 equals 7. This equation is another way to show.

Need answers fast
Find the area of a trapezoid, base 1 measures 77 ft, base 2 measures 31 ft, height measures 25 ft​

Answers

Answer: i-

Step-by-step explanation:

if there are fewer than 4 gallons of gas in the tank, what is the inequality?

Answers

Answer: G < 8

Step-by-step explanation:

G as a variable for gallons

The answer would be G > 8 :)


After a picnic, 5/12 of the cornbread is left over. Val eats 4/5 of the leftover cornbread. What fraction of the cornbread does Val eat? Enter your answer in simplest form.

Answers

Answer:

5/12 - 4/5 = -23/60. You can't simplify -23/60. Hope this is right

Step-by-step explanation:

4/5= 48/60

5/12 =  25/60

25/60-48/60= -23/60

Find the product of the integers:
2(-4)=

Answers

Answer:

-8

a positive number multiplied or divided by a negative number will always = a negative number.

what is the solution of this system of linear equations? y=2x-3 2x=y-3
a. infinitely many solutions
b. (0, -3)
c. (0,0)
d. no solution

Answers

Answer:

d. no solution

Step-by-step explanation:

y=2x-3

2x=y-3

y=2x+3

Since these are two distinct parallel lines (same slope), they will never meet. Hence, no solution

Answer:

No solution :)

Step-by-step explanation:

What’s the answer help please !

Answers

Answer:

30

Step-by-step explanation:

I am pretty sure that the answer is D.)
But don’t quote me.

A circular lake has a circumference of 24 miles. To the nearest square mile, what is the area of the lake?


15 square miles

46 spaure miles

183 square miles

452 square miles

Answers

46 sqaure miles.........

Answer:

46 square miles

Step-by-step explanation:

help me please asap​

Answers

Answer:

[tex]-\dfrac{11}{12}[/tex]

Step-by-step explanation:

[tex]\dfrac{\frac{5}{8}+\frac{3}{4}}{\frac{-2}{3}-\frac{5}{6}}[/tex]

Find common denominators:

[tex]\dfrac{\frac{5}{8}+\frac{6}{8}}{\frac{-4}{6}-\frac{5}{6}}=[/tex]

[tex]\dfrac{\frac{11}{8}}{\frac{-9}{6}}=[/tex]

[tex]\dfrac{11}{8}\cdot -\dfrac{2}{3}=-\dfrac{11}{12}[/tex]

Hope this helps!

Which technique is most appropriate to solve this equation?

x2 + 6= 31
Question 2 options:

quadratic formula


zero product property


square root property

Answers

Answer:

Square root property

Step-by-step explanation:

The given equation is :

[tex]x^2+6=31[/tex]

We need to write the most appropriated technique to solve the above equation.

Subtracting both sides of the above equation by 6 such that,

[tex]x^2+6-6=31-6\\\\x^2=25[/tex]

Now taking square root on both sides we get :

[tex]x=\sqrt{25}[/tex]

The square root property is used here, such that the value of x is :

[tex]x=\pm 5[/tex]

Write a problem that could be modeled with y=200(0.9).

Answers

First, I need to decide what equation this is like.

I believe this is y=mx.

We know that x is typically the input, and m is the constant function.

Y is the output.

So the original function may have been y=200x.

The only difference is now we've been given something to apply to the equation, in place of x.

2. Imagine a cloning machine. Whatever you put in, you get a copy of, and the original thing you put in. Its function would be y=2x. Let's pretend we decided to put three things in; 3 would go where x is.

Y would be the result of 3 copies and their originals, or 2(3).

(6=2(3))

Now, when someone else decides to use the cloning machine, they may put any number in, but the only properties that will change are y and x, not m.

The function will remain y = 2x. Any number could go in place of x, and multiplying x by 2 will give you the y. As long as you have a different value for x, the y will never be the same.

3. So now we have an understanding of what it means, we see that we have been given an x value to insert; an input.

A more practical example could be someting with money. This won't be entirely realistic, because we are dealing with a fraction of a number and another large number.

4. I decided to go with flour. I wanted the 200 to represent pennies, or cents. Before I landed on this, I looked up the cost of flour per pound. I found that the average is .43 dollars, which isn't terribly close to two dollars. But maybe the flour is high quality, so we can stick with that.

5. Seeing that this equation, y=200x, means we are charging 200 cents, or two dollars, we can write a problem from here.

Sylvia is in charge of selling home-harvested flour from an organic farm. She charges two dollars per pound of flower. Today, her next-door neighbors hope to buy a ninth of pound of flour, and they insist on paying with pennies. How many pennies do they need to pay for their order?

Let me know if this helped, or if you have any questions!

The graph of f(x) = (xl is reflected across the y-axis and
translated to the left 5 units. Which statement about the
domain and range of each function is correct?

Answers

Answer:

The range is different. (Last option)

Step-by-step explanation:

Since the graph was reflected, the range will change since it is no longer a minimum amount but a maximum amount that it will reach. The domain will continue to stay the same because the x values it will reach are still all real numbers.

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