A racecar driver completes a race 30 laps in 15 minutes at a constant speed. what is the driver's speed?

Answer:

1. Math encourages curiosity and questions.

2. Math can save you money. ...

Answer:

12/7

Step-by-step explanation:

yes ! cd

Answer:

y = 2x

Explanation:

To write the equation of a line u use the formula y = mx + b, where

y = y coordinate

m = slope

x = x coordinate

b = y intercept

One thing about parallel lines is that they always have the same slope. If you want to find a line parallel to y = 2x + 3, then the parallel line will also have a slope of 2.

So far, then, the equation would look like this: y = 2x + b

To find the y-intercept, we substitute in the values from (3,6) into the equation because the line passes through that point. So:

y = 2x + b

(6) = 2(3) + b

6 = 6 + b

6 - 6 = b

b = 0

Since the y-intercept is 0 (so the line passes through the origin), it doesn't need to be written on to the end of the equation.

y = 2x + 0 is just

y = 2x

That's your final equation! hope this helps!

Answer:

A.

Step-by-step explanation:

Answer:

Equation: [tex]4^2+b^2=17^2[/tex]

can also be simplified to 16 + b^2 = 289 or b^2 = 273

Answer:

a little bit less than 30

Step-by-step explanation:

Answer:

2/3 begins w a 2 and 1/3 begins w a 1. thats the difference.. hope this helped :)

Step-by-step explanation:

Answer:

.3333333

Step-by-step explanation:

because u have to math ight

Answer:

180

Step-by-step explanation:

Answer:

3 grams/cubic centimeter

Step-by-step explanation:

Density formula is mass divided by volume

30/10=3

3 grams/cubic centimeter

Answer:

Hope it helps you,

Step-by-step explanation:

As the figure can be split in to 3 geometric figure,

Rectangle , Triangle and Semi circle ,

So first find the area of these figures then add up them ,

Area of rectangle = Length * width

Length = 20m m  and  width  = 14 mm

hence

Area of rectangle = 20*14  = 280 mm^2

Now ,

Are of  Circle  =  [tex]\\ \pi *d^{2} /4[/tex]

Then Area of semi circle = [tex]\\ \pi *d^{2} /8[/tex]

Hence we have d= 20mm

Putt in semi circle formula we get,

Area of Semi Circle= (3.14)*400/8  = 157 mm^2

Now area of triangle = 1/2 * length*width

length =32-20 = 12 mm

width = 14 mm

putt in the formula we get ,

Area of triangle = 1/2*12*14 = 84 mm^2

Now add these 3 Areas to get total Area,

Answer:

64°

Step-by-step explanation:

Using Pythagoras rule :

Cosθ = adjacent / hypotenus

Adjacent = 167

Hypotenus = 381

Cosθ = 167 / 381

Cosθ = 0.4383202

θ = Cos^-1(0.4383202)

= 64.003

Hence, angle of elevation = 64°

Answer:

X = -3.5

Step-by-step explanation:

Answer:

-7/2

Step-by-step explanation:

4x+16=2

  -16      -16

4x= 2-16

4x=-14

/4    /4

x= -7/2

Answer:

31.6

Step-by-step explanation:

x / 13 = 17 / 7

7x = 221

x = 221 / 7

x = ~31.6

Answer:

Output value = 20

Step-by-step explanation:

Graph of any function is made up of two values → Values on x axis and Values along y axis.

x values represent the input values and y values represents the output values.

For every x value there is a y value because of which the data set is called to a function.

In other words, a function can't have two output values for a single input value.

If the input value of function is = 10

Then for x = 10, out value (along y axis) will be = 20

Therefore, Output value of the given function is 20.

Answer:

A

Step-by-step explanation:

ifunny is dankreloaded

The solution is, Option B Negative ,as time passes, speed decreases.

Positive Correlation= With Increase in x value, y value also increases or vice versa, we call it positive correlation.

Negative Correlation= With Increase in x value, if y value decreases or vice versa, we call it negative correlation.

here, we have,

Description of the Graph

1. The Relation between , Speed and time is depicted on the graph.

2. Minute = x coordinate

Miles per hour= y coordinate

The points shown on the graph , describing the relationship are, (5,15),(10,13.8),(15,11),(20,10),(25,9.8).

There are two types of Correlation

Positive Correlation= With Increase in x value, y value also increases or vice versa, we call it positive correlation.

Negative Correlation= With Increase in x value, if y value decreases or vice versa, we call it negative correlation.

As you can see from the points plotted on the graph ,with increase in x value , y value decreases.

So it is negative correlation.

As, time passes, Speed Decreases, So it is a Negative Correlation.

Option B  Negative ,as time passes, speed decreases.

To learn more on Correlation click:

https://brainly.com/question/8474971

#SPJ7

Answer:

rickrolled.

Step-by-step explanation:

¯\_(ツ)_/¯

you won't learn by asking others. do it yourself.

Answer:

K

Step-by-step explanation:

Answer:

The answer is C

Step-by-step explanation:

I got this by these steps:

1. Since you have the transversal FH you know that H is going to equal 180

2. So all you do know is subtract 180-82

3. You get 98

4. M<FHJ is 98

Hope that helps

Answer:

=28

Step-by-step explanation:

since its made of two triangles, you can calculate one of the triangles and multiply by two

the degrees of a triangle is 180 degrees

70+82= 152

180-152= 28

can i get brainiest plsss

Answer:

2624= 82%

18%= 2624/82=32. 32*18=576

Step-by-step explanation:

If 2624 people attending supported the home team, the total number

of people attending the game will be 3200.

It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.

The usage of percentages is widespread and diverse. For instance, numerous data in the media, bank interest rates, retail discounts, and inflation rates are all reported as percentages. For comprehending the financial elements of daily life, percentages are crucial.

It is given that 18% were supporting the visiting team and 2624 people attending supported the home team as a result 82 % were supporting the home team,

Let the total number of people attending the game be x.

⇒82% of x = 2624

⇒(82/100)×x= 2624

⇒x= (2624×100)÷82

⇒x=3200

Hence, if 2624 people attending supported the home team, the total number of people attending the game will be 3200.

Learn more about the percentage here:

brainly.com/question/8011401

#SPJ6

Answer: {-7, -6}

Explanation: When an equation has a squared term in it,

it's called a polynomial equation.

The rule for solving a polynomial equation

is to first set it equal to 0, then factor.

Since this equation is already set equal to 0, we can factor the left side.

The left side is a trinomial that can be

factored as the product of two binomials.

The first term in each binomial will be a factor of the w².

Since w² factors a w · w, we use a w as our first term.

For the last terms, we use factors of 42 that add

to 13 and these factors are +7 and +6.

So we have (w + 7)(w + 6) = 0.

So either w + 7 = 0 or w + 6 = 0.

Solving for w in each equation, we find that our solution set is {-7, -6}.

Answer:

60 cars per hour

Step-by-step explanation:

Answer:

The winning time increased by an average of 0.4 second per year from year 2 to year 4.

Step-by-step explanation:

I just took the quiz

The winning time for a race displayed in the table would be:

A). The winning time increased by an average of 0.4 seconds per year from year 2 to year 4.

Given that,

Year                             Winning Time(seconds)

1                                          27.5

2                                         28.4

3                                         28.7

4                                         29.2

5                                         29.44

The total change in the time = (0. + 0.3 + 0.5 + 0.24)/4

= 0.485 seconds

If we round off, it becomes 0.5 seconds.

Therefore, it can be considered that an average of 0.5 seconds changes every year from year 2 to 4.

Thus, option A is the correct answer.

Learn more about "Time" here:

brainly.com/question/26941752

Answer:

9 inches

Step-by-step explanation:

i divided 36 by 4

Answer:

9 inches

Step-by-step explanation:

You divide 36 by 4 which gives you 9 inch

Mark Brainliest Pls :(

Answer:

0

Step-by-step explanation:

Answer:

$0.52 = 0.52

Step-by-step explanation:

I think so.....