Brent conducted a survey in his school regarding whether students ride their bikes to school each day. he surveyed a random sample of 150 students and 40 said they rode their bikes to school each day. there are 450 students who attended school. based on the results of Brents survey, about how many students in the school ride their bikes to school each day

Answers

Answer 1
About 270 students bike yo school

Related Questions

a 5 inch tall bamboo shoot doubles in height every 3 days. if the equation, y=ab^x where x is the number of doubling periods, represents the height of the bamboo shot, what are the values of a and b?

Answers

X-doubling periods
Y-height of bamboo
Y=ab^x

1) make a table of values
X Y
1 5
2 10
3 20

2) write equations and substitute
5=ab^1 —> a=5/b^1 —> a=5/b
10=ab^2

Substitute into second equation

10=(5/b)*b^2
10=5b^2/b
10=5b
b=2

Substitute back in

b=2
10=a*2^2
10=4a
a=5/2

End equation:
Y=5/2*2^x


The measure of DF is 108. What is the measure of DEF, the tangent-chord angle?

Answers

The answer is 54 degrees, (apex)

Answer:

The measure of DE is 108°. What is the measure of ZDEF, the tangent-chord angle?

54

Step-by-step explanation:

The distance from town A to town B is divided into 8 equal parts. So far, a bus has traveled 12 Miles. How far apart are town A and town B? Explain

Answers

In this question, the bus had traveled 4 parts of the distance which equal to 12 miles. If you put it into an equation it will become
4 parts = 12 miles
1 parts = 12miles/4= 3 miles

The total distance of town A to town B is 8 parts. So, the total distance in miles would be:
8 parts * 3miles/part= 24 miles
Final answer:

Town A and Town B are 1.5 miles apart.

Explanation:

The distance between town A and town B can be found by multiplying the distance traveled by the number of equal parts that make up the whole distance. In this case, the bus has traveled 12 miles out of 8 equal parts. To find the total distance, we can set up a proportion:

12 miles / 8 parts = x miles / 1 part

Cross-multiplying gives us:

8x = 12 miles

Dividing both sides by 8 gives us:

x = 1.5 miles

Therefore, town A and town B are 1.5 miles apart.

One side of a triangle is increasing at a rate of 9 cm/s and a second side is decreasing at a rate of 2 cm/s. if the area of the triangle remains constant, at what rate does the angle between the sides change when the first side is 21 cm long, the second side is 36 cm, and the angle is π/6? (round your answer to three decimal places.)

Answers

Final answer:

The rate at which the angle between the sides of the triangle is changing is 4/9 radians per second.

Explanation:

In this problem, we are given that one side of the triangle is increasing at a rate of 9 cm/s and a second side is decreasing at a rate of 2 cm/s. We need to find the rate at which the angle between the sides is changing.

To solve this, we can use the formula:

angle_rate = (-side2_rate/side1)*(cos(angle))/(sin(angle))

Substituting the given values:

angle_rate = (-(-2)/9)*(cos(π/6))/(sin(π/6))

Simplifying, we get:

angle_rate = 4/9

Therefore, the rate at which the angle between the sides is changing is 4/9 radians per second.

Learn more about Rate of change here:

https://brainly.com/question/31226174

#SPJ3

Find the value of x to the nearest tenth.

10.0
6.0
9.3
4.0

Answers

suppose that the value of other ratio is equal to 6/3 then,

20/3x-8 = 6/3
18x-48 = 60
18x = 60+48
18x = 108
x = 6

Answer:

The value of x is 6  

Step-by-step explanation:

Given the figure in which

DE=3x-8 and BC=20

we have to find the value of x.

By mid-point theorem which states that the line segment which is drawn to the mid-points of two sides of triangle is parallel to the third side and also half of the length of third side.

[tex]DE=\frac{1}{2}BC[/tex]

[tex](3x-8)=\frac{1}{2}\times 20[/tex]

[tex]3x-8=10[/tex]

[tex]3x=18[/tex]

[tex]x=\frac{18}{3}=6[/tex]

The value of x is 6

Option 2 is correct.

what is −1.6+(−2.4)?

Answers

your answer is -4. The reason why its neg is because the number furthest from 0 is a negative

Roselyn wants to drive her car at a speed of 60 miles per hour for 1.251, point, 25 hours. Her car has a fuel efficiency of 15 miles per gallon. How many gallons of fuel does Roselyn need for her journey? Choose 1 answer: Choose 1 answer: A 2.52, point, 5 gallons B 3.1.25, point, 125 gallons C 0.20, point, 2 gallons D 5 gallons

Answers

(60 mi/h)*(1.25 h)/(15 mi/gal) = 5 gal

Roselyn needs D 5 gallons for her trip.
Answer:

The number of  gallons of fuel Roselyn need for her journey is:

                      D.   5 gallons

Step-by-step explanation:

It is given that:

Roselyn wants to drive her car at a speed of 60 miles per hour for 1.25 hours.

This means that the total distance she covers in 1.25 hours is:

[tex]60\times 1.25=75\ \text{miles}[/tex]

( Since, we know that speed is defined as the ratio of distance to time.

i.e.

[tex]Speed=\dfrac{Distance}{Time}\\\\i.e.\\\\Distance=Speed\times Time[/tex] )

Also, Her car has a fuel efficiency of 15 miles per gallon.

i.e.

She could cover 15 miles with 1 gallon of fuel.

Hence, in order to cover 75 miles.

i.e. to cover (15×5) miles she needs (1×5) gallons of fuel

i.e. she needs 5 gallons of fuel to cover 75 miles.

least common denominator for 1/49 1/21 1/3

Answers

The LCD is 147 for this set of numbers.
I hope this helped!
the least common denominator or lcd is 147 I hope this helps u pls thank and make brainliest

How to find the volume of a hemispherical bowl depth h?

Answers

It is the same formula for a sphere, but divide by 2 for a hemisphere.

Volume of hemisphere [tex]= \frac{2\pi{h^3}}{3}[/tex]

In a circle with a radius of 27  2/5 in., an arc is intercepted by a central angle of 7π/4 radians. What is the arc length? Use 3.14 for π and round your final answer to the nearest hundredth. Enter your answer as a decimal in the box.

Answers

For future reference, Scapazzi was correct.

The arc length will be given as the circumference of the circle is 150.56 inches long.

What is a circle?

It is a locus of a point drawn at an equidistant from the center. The distance from the center to the circumference is called the radius of the circle.

In a circle with a radius of 27 + 2/5 inches.

That can be written as 27.4.

An arc is intercepted by a central angle of 7π/4 radians.

The arc length will be given as the circumference of the circle

[tex]\rm Arc \ length = \dfrac{\theta}{2\pi} 2 \pi*r\\\\Arc \ length = \theta * r\\\\Arc \ length = \dfrac{7 \pi }{4} * 27.4 \\\\Arc \ length = 150.56[/tex]

Thus, the arc length will be given as the circumference of the circle is 150.56 inches.

More about the circle link is given below.

https://brainly.com/question/11833983

For a circle with a diameter of 6 meters, what is the measurement of a central angle (in degrees) subtended by an arc with a length of 7 3 π meters?

Answers

Answer : The measurement of a central angle is, [tex]140^o[/tex]

Step-by-step explanation :

Formula used for angle subtended by an arc is:

[tex]s=\frac{\pi r\theta}{180}[/tex]

where,

s = arc length = [tex]\frac{7}{3}\pi m[/tex]

r = radius = [tex]\frac{diameter}{2}=\frac{6m}{2}=3m[/tex]

Now put all the given values in the above formula, we get:

[tex]s=\frac{\pi r\theta}{180}[/tex]

[tex]\frac{7}{3}\pi=\frac{\pi \times (3)\times \theta}{180}[/tex]

[tex]\theta =140^o[/tex]

Thus, the measurement of a central angle is, [tex]140^o[/tex]

Miguel has an aquarium in the shape of a rectangular prism. The base is 30.25 inches long and 12.5 inches wide. The aquarium is 12.75 inches high. What is the volume of the aquarium to the nearest cubic inches?

Answers

To find the volume of a rectangular prism, we need to multiply the height, width and depth together.

30.25 × 12.5 × 12.75 = 4821.09375 in^3

Hope this helps!

The result of 4,816.40625 cubic inches is rounded to 4,816 cubic inches to the nearest cubic inch.

To find the volume of Miguel's aquarium, which is in the shape of a rectangular prism, we use the formula for the volume of a rectangular prism:

Volume = length * width *  height

In this case, the length is 30.25 inches, the width is 12.5 inches, and the height is 12.75 inches.

So, the calculation for the volume would be:

Volume = 30.25 inches * 12.5 inches * 12.75 inches
= 4,816.40625 cubic inches.

Rounding to the nearest cubic inch, the volume of the aquarium is 4,816 cubic inches.

A​ person's website specializes in the sale of rare or unusual vegetable seeds. he sells packets of​ sweet-pepper seeds for ​$2.32 each and packets of​ hot-pepper seeds for ​$4.40 each. he also offers a 16​-packet mixed pepper assortment combining packets of both types of seeds at ​$2.58 per packet. how many packets of each type of seed are in the​ assortment?

Answers

The first thing we must do in this case is to define variables.
 We have then:
 x = packets of sweet-pepper seeds
 16-x = packets of hot-pepper seeds
 We now write the equation to solve the problem:
 2.32x + 4.40 (16-x) = 2.58 (16)
 2.32x + 70.40-4.40x = 41.28
 -2.08x = -29.12
 x = (- 29.12) / (- 2.08)
 x = 14
 Answer:
 there are in the assortment:
 14 packets of sweet-pepper seeds
 
16-14 = 2 packets of hot-pepper seeds


A computer and printer cost a total of 1136
. The cost of the computer is three times the cost of the printer. Find the cost of each item.

Answers

Let's assign each a variable: 

Computer: 3x
Printer: x

We know that the total is 1136, so:

x+3x=1136
4x=1136

Now, we divide 1136 by 4 to get the cost of the printer.

1136/4=284

So, now let's apply this to what we wrote previously.

Answer:

Printer: 284
Computer: 284*3= 852

Hope I helped! If I did, feel free to vote brainliest.


Suppose you toss a coin 100 times and get 69 heads and 31 tails. based on these​ results, what is the probability that the next flip results in a tail​?

Answers

The probability would be 31/100.

When p2 – 4p is subtracted from p2 + p – 6, the result is 5p-6 To get p – 9, subtract

Answers

Subtract p² - 4p from p² + p - 6 to get 5p - 6. To obtain p - 9, subtract 15 from 5p - 6.

Let's break it down step by step:

1. Subtracting p² - 4p from p² + p - 6:

  Start by writing down the expression p² + p - 6.

  Now, subtract p² - 4p from it term by term.

  (p² + p - 6) - (p² - 4p)

2. Expand and Simplify:

  Distribute the subtraction across each term inside the parentheses:

  p² + p - 6 - p² + 4p

  This simplifies to: (p² - p²) + (p + 4p) - 6

  = 0 + 5p - 6

  = 5p - 6

3. Now, to get p - 9:

  We want to manipulate 5p - 6 to p - 9.

  Subtracting 15 from 5p - 6 gives:

  5p - 6 - 15

  = 5p - 21

Therefore, subtracting 5p - 21 from 5p - 6 results in p - 9.

708,000 divided by 3,000 equals

Answers

your answer is 236
[tex] \frac{708000}{3000} = 236[/tex]
Hello,

The answer is "236".

Reason:

First write the equation:

708,000/3,000=236

=236

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit

Help please!!! Need to find the height!!

Answers

the height can be found by multiplying 95 * sin 61

which is 83.088 or 83.1, D)

There are 24 different tables to set up for field day.The principal wants the tables set up in equal rows.should she use 3 rows or 5 rows?Explain

Answers

There should be 3 rows because 24 divided by 3 equals 8.

One leg of an isosceles right triangle measures 5 inches. Rounded to the nearest tenth, what is the approximate length of the hypotenuse? 2.5 inches 5.0 inches 7.1 inches 9.8 inches

Answers

Answer:  7.1 inches

Step-by-step explanation:

Given: One leg of isosceles right triangle = 5 inches

Since in isosceles right triangle , two sides have same side length , therefore the length of the other leg should be 5 inches.

Let H be the hypotenuse of the isosceles right triangle

Now, by Pythagoras Theorem , we have

[tex]H^2=5^2+5^2=25+25=50\\\\\Rightarrow\ H=\sqrt{50}=5\sqrt{2}\\\\\Rightarrow\ H==5\times(1.41421356237)\\\\\Rightarrow\ H==7.07106781187\approx7.1\ inches[/tex]

Hence, the approximate length of the hypotenuse = 7.1 inches

Answer: C

Step-by-step explanation: 7.1 inches

A thermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 30° f. after one-half minute the thermometer reads 50° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.)

Answers

At t=1 minute, the reading will be 40.00 °F.

_____
Every half-minute, the temperature difference from the 30 °F air temperature is divided by 2. After 1 minute, the initial 70-30=40 degree difference will be divided by 4. The thermometer will read 30° +40°/4 = 40°

Look at this cube and its net. Cube with one side labeled 8 centimeters. Net of the same cube also shown with one side labeled 8 centimeters. What is the surface area of this cube? cm²

Answers

The surface area is 384.

NEED ANSWER IN LEAST THAN 3 Minutes

Anita owns a beauty supply store. Every two weeks she receives a supply of shampoo. Every four weeks she receives a carton of nail polishes. Every eight weeks she receives a box of combs, and every twelve weeks she receives a box of hair dyes. If Anita received a shipment of all these supplies today, when is the next time all four supplies will arrive on the same day?

Answers

shampoo: 2, 4, 6, 8, 10, 12, 14 16, 18 , 20, 22, 24
nail polish: 4, 8, 12, 16, 20,. 24
combs: 8, 16, 24
hair dryers, 12, 24

 find the least common multiple of the weeks given, 2, 4, 8, 12

 the number is 24 so every 24 weeks 




The next time all four supplies will arrive on the same day is in 24 weeks

Find the domain and range of the relation and determine whether it is a function.
a. domain: all real numbers; range: all real numbers; Yes, it is a function.

b. domain: positive integers; range: positive integers; No, it is not a function.

c. domain: x ≥ 0; range: y > 3; No, it is not a function.

d. domain: x > 3; range: y > 0; Yes, it is a function.

Answers

Hello there!


Let's look at the graph. If we do the vertical line test, we can figure out that YES, it is a function, so option b and c are already out of the picture.


Now, to find the domain, look at the graph and shade it back to the x-axis. The domain includes every number greater than 3, so the domain is x>3.

To find the range, take a look at the graph and shade it back to the y-axis. The range includes every real number greater than 0, so the range is y>0

This means that d is the answer.


I really hope this helps!
Best wishes :)

Using function concepts, it is found that the correct option is:

d. domain: x > 3; range: y > 0; Yes, it is a function.

A relation is a function if for each value of the input, there is only one respective value of the output. In a graph, it means that for each value of x, there is only one respective value of y.

In this graph, there is only one value of y for each value of x, hence, it is a function.

The domain of a function is the set that contains all possible input values. In a graph, it is the values assumed by x, the horizontal axis.

In this graph, x assumes values greater than 3, hence the domain is x > 3.

The range of a function is the set that contains all possible output values. In a graph, it is the values assumed by y, the vertical axis.

In this graph, y assumes values greater than 0, hence the range is y > 0.

A similar problem is given at https://brainly.com/question/10891721

round 149,640 to the nearest thousand.

Answers

150,000 I believe is the answer
150,000 , 149k is closer to 150k than 140k

if i have 2 c's 2 A's 3 b's and 1 d what is my gpa and would i be able to pass 8th grade

Answers

A= 4 points
B= 3 points
C= 2 points
D= 1 point
F= 0 points

So you add 2+2+4+4+3+3+3+1
Which equals 22
Now divide 22 by 8
You get 2.75
So yes with a 2.75 gpa you should pass 8th grade as most schools require nothing less than a 2.0

A piece of solid, spherical glass has a circumference of 18.84 centimeters. The sphere is cut in half, creating two identical hemispheres. Using 3.14 for π, Tran computes the amount of paint needed to cover the sphere. Which statement about the amount of paint found by Tran is true?

Tran found the minimum amount of paint needed to cover the curved surface of a hemisphere
Tran found the minimum amount of paint needed to cover the entire surface of one of the hemispheres.
Tran found the minimum amount of paint needed to cover both hemispheres.
Tran found the minimum amount of paint needed to cover the bases of both hemispheres.

Answers

Final answer:

Tran must calculate the surface area of the hemisphere, including the base, to determine the amount of paint needed, which is the sum of half the surface area of the sphere and the area of the base.

Explanation:

The question is asking what Tran would compute when using π to determine the amount of paint required for a hemisphere. First, Tran needs to calculate the surface area of the sphere to determine the paint needed. Given the circumference C = 18.84 cm, the radius r can be found using C = 2πr, which gives us a radius of r = C / (2π). Once we have the radius, we can find the surface area A of the sphere using A = 4πr², which is necessary to determine the paint needed for the outer surface.

However, when the sphere is cut into two hemispheres, the flat face of each hemisphere (base) also needs paint. The area of the base is a circle with an area of πr². Thus, the total surface area that Tran would need to paint for one hemisphere, including the base, is πr² + 2πr² (half of the sphere's surface area).

Final answer:

Option  D.) Tran found the minimum amount of paint needed to cover both hemispheres.

Explanation:

Tran found the minimum amount of paint needed to cover both hemispheres. To calculate the amount of paint needed to cover a hemisphere, we need to find the surface area of the hemisphere. The formula for the surface area of a sphere is 4πr², where r is the radius.

Given that the circumference of the sphere is 18.84 centimeters, we can use the formula C = 2πr to solve for the radius. Plugging in the value for C, we get 18.84 = 2πr.

Simplifying the equation, we find that the radius of the sphere is approximately 3 centimeters.

The surface area of a hemisphere is half the surface area of a sphere, so the surface area of one hemisphere is 2πr²/2 = πr².

Substituting the value of r, we find that the surface area of one hemisphere is approximately 9π square centimeters.

Since Tran cut the sphere in half and created two identical hemispheres, the minimum amount of paint needed to cover both hemispheres would be twice the surface area of one hemisphere, which is approximately 18π square centimeters.

1.) A circle has a radius of 12 centimeters. Find the area of the sector of the circle formed by an angle of 25 degrees. is necessary, round the answer to two decimal places.

2.) Is the function f(theta) = sin theta + cos theta even, odd, or neither? show how

Answers

I'm taking it that the 25o angle has its apex at the center.
360o / pi*r^2 = 25/ x where x is the area when the central angle is 25o.
Cross multiply
360x = 25*3.14*12^2
360x = 11304
x = 11304 / 360
x = 31.4 cm^2

Two
f(x) = sin(theta)+cos(theta)
f(-x) = sin(-theta) + cos(-theta)
f(-x) = - sin(theta) + cos(theta) They are not the same. f(x) is odd. 



does 6% of a pound weigh more than an ounce

Answers

6% of 1 pound is 96 ounces so yes.

Answer:

6% of a pound does not weigh more than 1 ounce.

Step-by-step explanation:

First, we will calculate 6% (0.06) of 1 pound.

0.06 × 1 lb = 0.06 lb

1 pound is equal to 16 ounces. 0.06 pounds, expressed in ounces is:

0.06 lb × (16 oz/ 1 lb) = 0.96 oz

6% of a pound = 0.96 oz

0.96 oz < 1 oz

Due to the transitive property, we can affirm that 6% of a pound does not weigh more than 1 ounce.

what is the volume of a box that can fit exactly 128 1/8 inch cubes with 1/2 inch sides?

Answers

[tex]\bf \textit{the volume of one small cube is }V=\left( \frac{1}{2} \right)\left( \frac{1}{2} \right)\left( \frac{1}{2} \right)\implies V=\cfrac{1}{8} \\\\\\ \textit{now, the box fits in }128\frac{1}{8}\textit{ of those cubes, thus its volume is} \\\\\\ 128\frac{1}{8}\cdot \cfrac{1}{8}\implies \cfrac{128\cdot 8+1}{8}\cdot \cfrac{1}{8}\implies \cfrac{1025}{8}\cdot \cfrac{1}{8}\implies \cfrac{1025}{64}\implies 16\frac{1}{64}~in^3[/tex]
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