MARKING BRAINLIST QUESTION BELOW PLSSSSS PLSSSS HELP

MARKING BRAINLIST QUESTION BELOW PLSSSSS PLSSSS HELP

Answers

Answer 1

Answer:

1. 75 feet per hour

2. [tex]\frac{15}{7}[/tex] pounds per year

Step-by-step explanation:

The rate of change can be represented as the slope of the equation.

The slope of any relationship is rise over run.

In number 1, we can see that the climber gained 300 feet in 4 hours. This means that the rate of change will be [tex]300\div4=75[/tex] feet per hour.

In number 2, we can see that the teacher gained 45 pounds in a timeframe of 21 years. This means that the slope is [tex]\frac{45}{21}[/tex], which can be simplified down to [tex]\frac{15}{7}[/tex]l

Hope this helped!


Related Questions

Shirley wants to find the distance her unicycle moves on the sidewalk when the tire makes one complete revolution. If the diameter of her unicycle tire is 14 inches, find the distance the unicycle moves in one complete revolution. Use as an approximation for pi.

Answers

Answer:

44 in

Step-by-step explanation:

The circumference of the tire will be the same as the distance the unicycle moves in one complete revolution.

Find the circumference with the formula C = [tex]\pi[/tex]d, where d is the diameter

Plug in the values:

C = [tex]\pi[/tex](14)

C = approx. 44 in

four times the difference of a number and 7 is 12

Answers

answer

20

Step-by-step explanation:

I think you mean for times the difference of seven and 12 or (12-7)×4 if not sorry

Answer: 10

Step-by-step explanation:

4(x - 7) = 12

x - 7 = 3

x = 10

Find the limit of the function algebraically. alt='limit as x approaches zero of quantity negative seven plus x divided by x squared.'

Answers

Answer:

lim x->0 (-8+x)/x^2

just plug in x = 0

(-8+0)/0

now this fraction is a negative number divided by 0.

So, it equals -infinity.

The limit value is infact -infinity,

so the given option, "Does Not Exit" is the best choice.

solve this asap plsss Giving 20 points ty <3

Answers

Answer:

24

Step-by-step explanation:

first 2×2=4

then 16÷4

4×6

24

The students of a certain college were asked to choose which of six movie genres was their favorite. The pie chart below shows the distribution of the students’ answers. If there are 18,500 students at the college, how many chose Drama , Other, or Comedy ?

Answers

Answer:

12950

Step-by-step explanation:

comedy : 20% => 20 × 18500 ÷ 100 = 3700

drama : 23% => 23 × 18500 ÷ 100 = 4255

other : 27% => 27 × 18500 ÷ 100 = 4995

all together: (20 + 23 + 27) × 18500 ÷ 100 = 3700+4255+4995 = 12950

The solution is 12950.

What is percentage?

A percentage is a number or ratio that can be expressed as a fraction of 100. A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", although the abbreviations "pct.", "pct" and sometimes "pc" are also used. A percentage is a dimensionless number; it has no unit of measurement.

here, we have,

from the given graph, we get,

comedy : 20%

=> 20 × 18500 ÷ 100

= 3700

drama : 23%

=> 23 × 18500 ÷ 100

= 4255

other : 27%

=> 27 × 18500 ÷ 100

= 4995

so, we get,

all together: (20 + 23 + 27) × 18500 ÷ 100

                   = 3700+4255+4995

                   = 12950.

To learn more on percentage click:

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List the next three numbers for the sequence: 7, 7 /2 , 7 /4 , 7/ 8

Answers

Answer:

7/16, 7/32, 7/64

Step-by-step explanation:

PLEASE GIVE BRAINLIEST OR AT LEAST A THANKS!

Answer:

7/16, 7/32, 7/64

Step-by-step explanation:

7, 7 /2 , 7/ 4 , 7/ 8

We multiply by 1/2 each time

7/8 *1/2 = 7/16

7/16*1/2 = 7/32

7/32 *1/2 = 7/64

The boiling point of jet fuel is 329°F. Rounded to the nearest degree, what is the temperature in degrees Celsius? Use the formula C = 59(F – 32), where C represents degrees Celsius and F represents degrees Fahrenheit. A. 165°C B. 183°C C. 201°C D. 535°C

Answers

Answer:

17523° Celsius

Step-by-step explanation:

using the formula c=59(F-32), you have to plug the 329 into F like so-

C=59(329-32)

and then you're free to calculate! first you distribute the 59 like so...

C= (59 times 329)(59 times -32) getting C=19411-1888 which u then solve again to get 17523° Celsius

Dan paid $498.09 (including sales tax) for a laptop computer. The sales tax in his state is 7%. What was the price of the laptop before the sales tax was added?

Answers

Answer:

$465.50

Step-by-step explanation:

Let the price be x, then:

x + 0.07x = 498.091.07x = 498.09x = 498.09/1.07x = 465.50

PLS HELP ASAP!! For brainliest answer!!!!

Answers

It would be the whole numbers

Find the angle measure x in the figure​

Answers

Answer:

  x = 25

Step-by-step explanation:

Make use of the fact that the sum of angle measures in a triangle is 180°.

  (2x+15)° +(3x+5)° +(x+10)° = 180°

  6x +30 = 180 . . . collect terms, divide by °

  x +5 = 30 . . . . . . divide by 6

  x = 25 . . . . . . . . . subtract 5

_____

Check

This value of x makes the angle measures be ...

  A = (x+10)° = 35°

  B = (3x+5)° = 80°

  C = (2x+15)° = 65°

These angles total 180°.

The volume of a cube is 1,000 cubic meters. What is the length (in meters) of one edge of the cube

Answers

Answer:

10

Step-by-step explanation:

Cube root of 1000

That's 10

Answer:

Calculator to find all the properties of a cube given any one property. ... Definition: The number of cubic units that will exactly fill a cube. Try this ... The volume of a cube is found by multiplying the length of any edge by itself twice.

What does 3ˣ + 4·3ˣ⁺¹ =
a. 13·3ˣ⁺¹
b. 5·3ˣ⁺¹
c. 5·3²ˣ⁺¹
d. 13·3ˣ

Answers

Answer:

D. 13*3^x

Step-by-step explanation:

[tex]3^x +4*3^x^+^1= \\3^x+4*3(3^x)=\\3^x(1+[4*3])=\\3^x(1+12)=\\3^x(13)=\\13*3^x[/tex]

The solution of 3ˣ + 4·3ˣ⁺¹ is 13·3ˣ which is the correct answer would be an option (D)

What is an exponential function?

An exponential function is defined as a function whose value is a constant raised to the power of an argument is called an exponential function.

It is a relation of the form y = aˣ  in mathematics, where x is the independent variable

⇒ 3ˣ + 4·3ˣ⁺¹

⇒ 3ˣ + 4·3ˣ3¹

⇒ 3ˣ( 1 + 4·3)

⇒ 3ˣ( 1 + 12)

⇒ 3ˣ(13)

⇒ 13·3ˣ

Hence, the solution of 3ˣ + 4·3ˣ⁺¹ is 13·3ˣ which is correct answer would be option (D)

Learn more about exponential function here:

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The manager of a fleet of automobiles is testing two brands of radial tires and assigns one tire of each brand at random to the two rear wheels of eight cars and runs the cars until the tires wear out. The data (in kilometers) are given below. Find a 99% confidence interval on the difference in mean life. Which brand would you prefer based on this calculation?

Answers

Answer:

-727.5034 and 2464.2534

Step-by-step explanation:

Find explanation in the attachment

Complete the table of values for the following function.

Answers

Answer/Step-by-step explanation:

To complete the table, given the function,   [tex] f(x) = \frac{1}{3}x^2 [/tex], plug in each value of x to find f(x).

Thus:

x = -6

[tex] f(-6) = \frac{1}{3}(-6)^2 = \frac{1}{3}(36) [/tex]

[tex] f(-6) = 12 [/tex]

[tex] f(-3) = \frac{1}{3}(-3)^2 = \frac{1}{3}(9) [/tex]

[tex] f(-3) = 3 [/tex]

[tex] f(0) = \frac{1}{3}(0)^2 = \frac{1}{3}(0)  [/tex]

[tex] f(0) = 0 [/tex]

[tex] f(3) = \frac{1}{3}(3)^2 = \frac{1}{3}(9) [/tex]

[tex] f(3) = 3 [/tex]

[tex] f(6) = \frac{1}{3}(6)^2 = \frac{1}{3}(36) [/tex]

[tex] f(6) = 12 [/tex]

Find the area of the parallelogram with vertices:________.
P(0,0,0), Q(4,-5,3), R(4,-7,1), S(8,-12,4).

Answers

Answer:

97.98

Step-by-step explanation:

The area of the parallelogram PQR is the magnitude of the cross product of any two adjacent sides. Using PQ and PS as the adjacent sides;

Area of the parallelogram = |PQ×PS|

PQ = Q-P and PS = S-P

Given P(0,0,0), Q(4,-5,3), R(4,-7,1), S(8,-12,4)

PQ = (4,-5,3) - (0,0,0)

PQ = (4,-5,3)

Also, PS = S-P

PS = (8,-12,4)-(0,0,0)

PS = (8,-12,4)

Taking the cross product of both vectors i.e PQ×PS

(4,5,-3)×(8,-12,4)

PQ×PS = (20-36)i - (16-(-24))j + (-48-40)k

PQ×PS = -16i - 40j -88k

|PQ×PS| = √(-16)²+(-40)²+(-88)²

|PQ×PS| = √256+1600+7744

|PQ×PS| = √9600

|PQ×PS| ≈ 97.98

Hence the area of the parallelogram is 97.98

Write the decimal number in numerical form: Six hundred eighty-two ten-
thousandths

Answers

Answer: 0.0682

Definition

Numerical: It's involving only numbers.

This means we will convert this number from word into numbers.

Answer:

Step-by-step explanation:

682.010

Help please 2 over 5D - 77 = 55.

Answers

Answer:

Step-by-step explanation:

2/(5d-77)=55

2=55(5d-77)

2/55=5d-77

5d=2/55 + 77

d = (2/55 + 77)/5

Hope you can calc that yourself

Rodell wants to find the favorite gaming app among the students at his school. He decides to poll the thirty students
on his football team and the fifteen students on his basketball team to gather the data. What is wrong with Rodell's
method for collecting his data?
Rodell only polled fellow athletes, this sample does not represent nonathletes at the school.
* Rodell needs a larger sample size than two sports teams to represent a whole school.
Rodell polled everyone on his teams; he should have only polled every other student for it to be a true sample.
Rodell’s polling method only included fall and winter sports, he should have also included a spring sport like
baseball
(it’s not B on edge, don’t answer if you don’t know thanks)

Answers

Rodell needs a larger sample size than two sports teams to represent a whole school.

Important Information : Study is conducted about favourite gaming app among students at school, 30 & 15 students of football & basketball team are polled.

Finding : Issue in Rodell's method of collecting data

The issue in this sampling : Rodell needs a larger sample size than two sports teams to represent a whole school.

Sample selected from universe should be very carefully chosen, to be a good representative of universe.

Here, Rodell has chosen only two sports' team members as sample for the study of favourite gaming app. Such kind of sample having more uneven concentration of any type of population members doesn't denote sample being a good representative of population.

To learn more Sampling, refer https://brainly.com/question/24842573?referrer=searchResults

You measure 46 watermelons' weights, and find they have a mean weight of 60 ounces. Assume the population standard deviation is 8.5 ounces. Based on this, construct a 99% confidence interval for the true population mean watermelon weight. Give your answers as decimals, to two places.

Answers

Answer:

A 99% confidence for the true population mean watermelon weight is [56.77 ounces, 63.23 ounces] .

Step-by-step explanation:

We are given that you measure 46 watermelons' weights, and find they have a mean weight of 60 ounces.

Assume the population standard deviation is 8.5 ounces.

Firstly, the pivotal quantity for finding the confidence interval for the population mean is given by;

                             P.Q.  =  [tex]\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{} n} }[/tex]  ~  N(0,1)    

where, [tex]\bar X[/tex] = sample mean weight = 60 ounces

             [tex]\sigma[/tex] = population standard deviation = 8.5 ounces

             n = sample of watermelons = 46

             [tex]\mu[/tex] = population mean watermelon weight

Here for constructing a 99% confidence interval we have used a One-sample z-test statistics because we know about the population standard deviation.

So, 99% confidence interval for the population mean, [tex]\mu[/tex] is ;

P(-2.58 < N(0,1) < 2.58) = 0.99  {As the critical value of z at 0.5% level  

                                                     of significance are -2.58 & 2.58}  

P(-2.58 < [tex]\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{} n} }[/tex] < 2.58) = 0.99

P( [tex]-2.58 \times {\frac{\sigma}{\sqrt{} n} }[/tex] < [tex]{\bar X-\mu}[/tex] < [tex]2.58 \times {\frac{\sigma}{\sqrt{} n} }[/tex] ) = 0.99

P( [tex]\bar X-2.58 \times {\frac{\sigma}{\sqrt{} n} }[/tex] < [tex]\mu[/tex] < [tex]\bar X+2.58 \times {\frac{\sigma}{\sqrt{} n} }[/tex] ) = 0.99

99% confidence interval for [tex]\mu[/tex] = [ [tex]\bar X-2.58 \times {\frac{\sigma}{\sqrt{} n} }[/tex] , [tex]\bar X+2.58 \times {\frac{\sigma}{\sqrt{} n} }[/tex] ]

                                            = [ [tex]60-2.58 \times {\frac{8.5}{\sqrt{46} } }[/tex] , [tex]60+2.58 \times {\frac{8.5}{\sqrt{46} } }[/tex] ]

                                            = [56.77 ounces, 63.23 ounces]

Therefore, a 99% confidence for the true population mean watermelon weight is [56.77 ounces, 63.23 ounces] .

on a scale of map, 5cm represent 60km. if the distance between two points on the map is 8cm, find the actual distance between these points?​

Answers

[tex]60 \div 5 = 12[/tex]

[tex]8 \times 12 = 96km[/tex]

Answer:

96 kilometers

Step-by-step explanation:

Let's set up a proportion using the following setup.

scale / actual = scale / actual

The scale is 5 cm to 60 km.

5cm / 60 km= scale/ actual

The distance on the map is 8 cm, but the actual distance is unknown. Therefore, we can say the actual distance is x km.

5 cm/ 60 km= 8 cm/ x km

5/60=8/x

Cross multiply. Multiply the numerator of the first fraction by the denominator of the second. Then, multiply the denominator of the first by the numerator of the second.

(5*x)=(8*60)

5x=8*60

5x=480

5 and x are being multiplied. The inverse of multiplication is division. Divide both sides of the equation by 5.

5x/5=480/5

x=480/5

x=96

x= 96 km

The actual distance between the two points is 96 kilometers.

Assume that adults have IQ scores that are normally distributed with a mean 105 of and a standard deviation 20 . Find the probability that a randomly selected adult has an IQ between 88 and 122 .

Answers

Answer:

0.6048

Step-by-step explanation:

Given the following :

Assume a normal distribution :

Mean (m) = 105

Standard deviation (sd) = 20

Find the probability that a randomly selected adult has an IQ between 88 and 122 .

Z = (x - m) / sd

For IQ score of 88:

Z = (88 - 105) / 20

Z = (-17) / 20

Z = - 0.85

For IQ score of 122:

Z = (122 - 105) / 20

Z = (17) / 20

Z = 0.85

P(-0.85<Z<0.85) = P(Z < 0.85) - P(Z < - 0.85)

P(-0.85<Z<0.85) = (0.8023 - 0.1977)

P(-0.85<Z<0.85) = 0.6048

3 lines intersect to form 5 angles. Clockwise, from top left, the angles are B = question mark, 90 degrees, C = question mark, D = 124 degrees, A = question mark. What is the value of m∠A + m∠B? °

Answers

Answer:

The answer is 90 degrees

Step-by-step explanation:

Both A and B make a right angle, which is 90 degrees.

Hope it helped :)

The value of m∠A + m∠B is 90°

What are vertically opposite angles?

It is defined as the angles when two lines intersect each other and at the intersecting point, some pair of angles are formed which we call vertically opposite angles, as the name describes that they have vertically opposite angles.

Three lines intersect to form 5 angles such that:

From the top left ∠B made and after this 90° made.

∠D = 124°

From the figure, we can clearly see ∠A = ∠C (vertically opposite angles)

We can calculate ∠C = 360°-90°-90°-124° ⇒ 56°

Also ∠A = 56°

and ∠B = 90° - 56° ⇒ 34°

Now we can calculate the sum of the angle ∠A+∠B = 56+34 ⇒ 90°

Thus, the value of m∠A + m∠B is 90°

Learn more about the vertically opposite angles here:

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Find the
(i) Radius of the smaller sector.
(ii) Perimeter of the shape.
(iii) The angle ​

Answers

Answer:

Radius of the smaller sector = 12 cmPerimeter of the shape = 68 cmAngel = 47.72° (Approx)

Step-by-step explanation:

Computation:

Length of arc = Θ/360[2πr]

20 = Θ/360(2)(22/7)(24)

Θ = 47.72°

Angel = 47.72° (Approx)

Length of arc = Θ/360[2πR]

10 = [47.72 / 360][2][22/7][R]

R = 12 cm

Radius of the smaller sector = 12 cm

Perimeter of the shape = 20 + 24 + 24

Perimeter of the shape = 68 cm

write an expression of the sequence of operations described below

subtract f from g then subtract 10 from the result ​

Answers

Answer:

the answer is: (g-f)-10

Distance between points (-3, 1) and (5, -2) rounded to the nearest tenth. ​

Answers

Answer:

d ≈ 8.5

Step-by-step explanation:

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

Simply plug in our 2 coordinates into the formula:

d = √[(5 + 3)² + (-2 - 1)²]

d = √[(8)² + (-3)²]

d = √(64 + 9)

d = √73

d = 8.544

d ≈ 8.5

The coordinates on a map for City A are (57, 11) and those for City B are (121, 79). Note that coordinates represent miles. Find the distance between the cities to the nearest mile.

Answers

Answer:

93 miles

Step-by-step explanation:

Use the distance formula:

d = [tex]\sqrt{(x2 - x1)^2 + (y2 - y1)^2}[/tex]

Plug in the values:

d = [tex]\sqrt{(121 - 57)^2 + (79 - 11)^2}[/tex]

d = [tex]\sqrt{4096 + 4624}[/tex]

d = [tex]\sqrt{8720}[/tex]

d = 93.4

= 93 miles

Answer:

93 miles.

Step-by-step explanation:

To find this answer, we can use the distance formula: D= SQ root of (X2 - X1)^2 + (Y2-Y1)^2

Then, we have to plug in the corrdinates accordingly:

D = SQ root of (121 - 57)^2 + (79 - 11)^2

D = SQ root of (64^2) + (68^2)

D = SQ root of 4096 + 4624

D = SQ root of 8720

D = 93.3809402394

D rounded to the nearest mle is 93 miles

Hope this helps :)

if a number is doubled, and 16 is added to it, the resault is 40. what is the number

Answers

Answer:

The number is 12

Step-by-step explanation:

Let x = number

2x+16 = 40

Subtract 16 from each side

2x+16-16 =40-16

2x = 24

Divide by 2

2x/2 =24/2

x = 12

Olivia has a big bag of 324 skittles.She divides the bag into thirds for herself and 2 friends.How many Skittles will each person get?

Answers

Answer:

108 skittles

Step-by-step explanation:

If she divides a bag of 324 skittles between 3 people, then we want to find a third of 324 - aka [tex]324\div3[/tex].

324 divided by 3 is 108, so each person will get 108 skittles.

Hope this helped!

- Marsha's Bakery packages cupcakes 24 to a box. She recently received an order from a local university for 2225 cupcakes. If she fill each box with 24 cupcakes, except for the last one, how many full boxes of cupcakes are needed and how many cupcakes will be in the last box?​

Answers

Answer:

17.

Step-by-step explanation:

Divide 2225 by 24 and round down. (92) Multiply 92 by 24 and subtract that (2208) from the total number (2225). you get 17

Rewrite the expression by factoring out (w+6).
2w2(w+6) +7(w+6)

Answers

Answer:

Below

Step-by-step explanation:

● 2w^2 (w+6) + 7(w+6)

● (w+6) (2w^2 + 7)

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