An experiment finds that runners with the longest legs complete a mile run in less time. Identify the relation between leg length and time of a mile run.

Answer:

1/5, 0.2, and 20%

Step-by-step explanation:

You can multiply and you will get 4/20 which you can simplify to 1/5.

Answer:

[tex]\frac{1}{5}[/tex] or 0.2

Step-by-step explanation:

[tex]\frac{1}{4}[/tex] × [tex]\frac{4}{5}[/tex]

= [tex]\frac{1}{5}[/tex] or 0.2

Answer:

A would be 90

Step-by-step explanation:

Triangles always calculate to 180 degrees so with the 45+45 being 90 you would subtract that to 180 and it'd give you 90.

Answer:

x by 10

Step-by-step explanation:

the decimal will have to move by one digit

Answer:

3 is the answer

Step-by-step explanation:

cause if u do beldams

The value of d that makes (x - d) a factor of p(x) is d = -5.

Given that we need to find the value of d if (x-d) is a factor of the polynomial [tex]\mathrm{p(x)= 2x^3 -dx^2+(1-d^2)x+5}[/tex].

If (x - d) is a factor of the polynomial [tex]\mathrm{p(x)= 2x^3 -dx^2+(1-d^2)x+5}[/tex], it means that if we substitute (x = d) into the polynomial, the result should be equal to zero.

In other words, p(d) = 0.

Let's find the value of d by setting p(d) to zero and solving for d:

[tex]\mathrm{p(d)= 2d^3 -d\cdot d^2+(1-d^2)d+5}[/tex]

To find d, we set p(d) equal to zero:

[tex]\mathrm{ 2d^3 -d\cdot d^2+(1-d^2)d+5 = 0}[/tex]

Now, let's simplify this equation and solve for d:

0 = 2d³ - d³ - d³ + d + 5

0 = 2d³ - 2d³ + d + 5

0 = d + 5

Now, isolate d:

d = -5

So, the value of d that makes (x - d) a factor of p(x) is d = -5.

Learn more about polynomial click;

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Answer:

A: 336 km

B: 14 L

Step-by-step explanation:

Use a proportion

210 km / 5 L = x / 8L         Cross multiply

8*210  = 5 x

1680  = 5x

x = 1680 / 5

x = 336 km

===============

210 /5 = 588/x                   Cross multiply

210x = 588 * 5

210x = 2940                     Divide by 210

x = 2940/210

x = 14 L

Answer:

91.................

Answer:

[tex]-26x+60[/tex]

Step-by-step explanation:

First I like to write the whole equation.

[tex]-3(x-4)+7(4-x)-2(8x-10)[/tex]

Now we should distribute where ever we see it's needed.

[tex]-3x+12+28-7x-16x+20[/tex]

Next we combine the like terms.

[tex]-26x+60[/tex]

That's it there's nothing else we can do now, it's in simplest form.

Answer:

x^3 - 5x^2 - 11x - 21

Step-by-step explanation:

(x - 7) (x^2 + 2x + 3)

use distributive property, basically means multiply

x^3 + 2x^2 + 3x​ - 7x^2 - 14x - 21

add like terms

x^3 - 5x^2 - 11x - 21

Answer:

linear

Step-by-step explanation:

Find the x and y-intercepts of the equation. Then calculate the points at constant intervals and plot and connect those points on a makeshift graph. A quadratic equation can have 2 solutions, 1 solution, or none. The corresponding graphs(if two solutions) would most probably cross over the x-axis twice.

Hope this helps.

Answer:

The ordered pair (-3, 3) represents the solution of two lines on the coordinate grid.

Thus, option B is true.

Step-by-step explanation:

As we know that the point of intersection of two lines is the solution of the lines.

Given the graph of the lines, we can see that the two lines intersect at the point (-3, 3).

i.e. at x= -3, y = 3

The point of intersection is (-3, 3)

Thus, the ordered pair (-3, 3) represents the solution of two lines on the coordinate grid.

Thus, option B is true.

Answer:

B

i'm sorry for wasting your time and these points but i don't think anyone is gonna answer the question since someone already did and its correct, i just answered it so the other person can get the Brainiest :)  Have a nice day!

Answer:

Um.....there isnt enough information for anybody to really figure this out.

Step-by-step explanation:

Incomplete question. The full question read;

Decide whether the following statement makes sense​ (or is clearly​ true) or does not make sense​ (or is clearly​ false). Explain your reasoning.

​I'm putting all my savings into stocks because stocks always outperform other types of investments over the long term.

Choose the correct answer below.

A.  The statement does make sense because stocks historically outperform bonds and cash over the long term and investing in stocks is​ high-risk, which offers higher returns.

B.  The statement does not make sense because although stocks historically outperform bonds and cash over the long​ term, investing in stocks is​ high-risk and there is no guarantee that the investment will yield a high return.

C.  The statement does make sense because stocks are a​ low-risk investment, offering predictable low returns.

D.  The statement does not make sense because stocks never outperform bonds and cash over the long term.

Answer:

B.  The statement does not make sense because although stocks historically outperform bonds and cash over the long​ term, investing in stocks is​ high-risk and there is no guarantee that the investment will yield a high return.

Step-by-step explanation:

Of course, the statement does not make sense because it does clearly say the reality about stocks. By saying "stocks always outperform" other investment types it hides the possibility of losses from stock investments.

For example, a company's stock may be negatively affected as a result of employee layoffs or unexpected company scandals. Hence, there is no guarantee that the investment will yield a high return.

If we write the quadratic equation in the vertex form, will be easy to find the vertex.

The vertex form of a quadratic function is:

Where the vertex is (h. k).

We have:

y=(x+2)(x-2)

Form this we conclude: a = 1, h = 0, k = -4. Then:

Answer:

75 degrees.

Step-by-step explanation:

The total number of degrees in a triangle is 180 degrees therefore you can take the sum of the other 2 angles in the triangle and take that number and subtract it from 180.

1). 30+75=105

2).180-105=75

3). using the Side, Side, Side geometry rule, this means that both triangles are the same for all angles and side lengths

4). using the Alternative angle rule, the rule that say that a line that intersects 2 parallel lines forms 4 pairs of similar angles

5). therefore angle ABC is the same as angle BCD

6). Angle ABC was determined to be 75 degrees therefore angle BCD is also 75 degrees

Answer:

30

Step-by-step explanation:

30-13=17

Answer:

Number = 30

Step-by-step explanation:

Let unknown number = x

If, x is decreased by 13, then value = 17

x - 13 = 17

x = 17 + 13

x = 30

_______

Hope it helps ⚜

Answer:

10 mins

Step-by-step explanation:

Proportion:

21/6=35/x

x=(35*6)/21

x=10

Hope this helps plz hit the crown :D

Answer:

10 mintes

Step-by-step explanation:

Mika would need 10 minutes to eat 35 hot dogs.

Mika can eat 21 hot dogs in 6 minutes. So Mika eats 21 hot dogs/6 minutes

So Mika eats 35 hot dogs/m minutes. The proportion is set up like this:

21/6 = 35/m Then, cross-multiply:

6·35 = 21m

m = 210/21

m = 10 minutes

Answer:

y = 1/9 x z^3

Step-by-step explanation:

y is jointly proportional to x and z^3

y = k * x * z^3 where k is the constant of proportionality

y =12, x = 4 and z =3

12 = k * 4 * 3^3

12 = k * 4 * 27

12 = k * 108

12/108 = k

1/9 = k

y = 1/9 x z^3

Answer:

71

Step-by-step explanation:

13 plus 58 equals 71

Answer

71

Step-by-step explanation:

58 plus 13 is 71

Answer:

3 hours from noon, or 3 pm.

Step-by-step explanation:

As of 12 noon, the frequencies are 45 and 60 minutes.

To find out when they leave at the same time again, we need the LCM (least common multiple) of the two frequencies, i.e.

LCM (45, 60) = common time from {45,90,135,180,225,270,315,360....} and{60,120,180,240,300,360,...}

We see that they leave at the same time again at 180 and 360, ... minutes.  Since 180 minutes is the least common multiple, 180 is the next time they leave together again, or 3 hours after noon, i.e. 3pm.

Happy New Year, ... en quelques minutes!  :)

Answer:

3 PM

Step-by-step explanation:

Answer:

I suppose you are correct.

Step-by-step explanation:

Answer:

8 is the correct answer

Answer:

Only when your multiplying or dividing.

Step-by-step explanation:

And why do i see a lot of people with that pfp.....

Answer:

Step-by-step explanation:

3x + 5y = 7

Since that is our original form, let's convert it so that we can find the slope:

5y = -3x + 7

y = -3/5 x + y

To get a perpendicular line, we need the negative reciprocal of the slope. This means that the sign switches and numerator and denominator flip:

m = 5/3

From here, we use the point-slope equation and then convert that into slope-intercept form:

y - y1 = m(x - x1)

y - 6 = 5/3(x - 0)

y - 6 = 5/3x

Answer:

f(-3) = 3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

f(x) = -x

f(-3) is x = -3

Step 2: Evaluate

Answer:

I think it's a..... I think it's a carrot

Answer:

-8x+19y

Step-by-step explanation:

Answer:

-8x + 19y

Step-by-step explanation:

distribute the -5

-10x + 15y + 2(x + 2y)

distribute the 2

-10x +15y + 2x + 4y

arange  the terms

-10x + 2x + 15y + 4y

combine

-8x + 19y