This is hard I’d love help

The required equation is 0.1x²-9.5x+245=0

And, the stopping distance for the train traveling at 95 miles per hour is 245.

Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable.

Here, given that,

Speed, x (mi/h) 50 55 60 65 70 75 80 85 90

Distance ,y (100m) 20 25 35 50 70 95 125 160 200

Now, let an quadratic equation be, ax²+bx+c=y

Putting the values of x & y we get,

2500a+50b+c=20 ....(1)

3025a+55b+c=25...(2)

3600a+60b+c=35 .....(3)

solving this we get,

a= 0.1

b=-9.5

c=245

Hence, the required equation is 0.1x²-9.5x+245=0

And, the stopping distance for the train traveling at 95 miles per hour is 245.

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Answer:

5g

Step-by-step explanation:

14-9=5

Answer:

B.) 26

Step-by-step explanation:

There are 52 weeks in a year.

If you got paid every week there would be 52 pay periods.

But since its every 2 weeks, you cut 52 by half which leaves you with 26.

Answer:

0.001035

Step-by-step explanation:

Mean (m) = 152.09 mm

Standard deviation (σ) = 19.62 mm

Sample size (n) = 25

Length being 140mm or shorter (x) : x ≤ 140

Using the Zscore relation :

Zscore = (x - m) / (σ/√n)

Zscore = (140 - 152.09) / (19.62/√25)

Zscore = (140 - 152.09) / (19.62/5)

Zscore = −3.081039

P(Z ≤ −3.08) = 0.001035

Part A:

I only see one thing that you can do. You can use transformation to move f(x) 6 units to the left

Part B:

g(x) = f(x)+1 where k = 1, and g(x) = f (x + 8) where k = 8

Part C:

g(x) = f (x) + 1, and g(x) = f (x + 8)

sorry if I got it wrong

Answer:

Step-by-step explanation:

m∠1 + 75° = 180° [Linear pair of angles]

m∠1 = 180° - 75°

       = 105°

m∠2 = m∠1 [Opposite angles of a rectangle are equal]

m∠2 = m∠1 = 105°

m∠2 = m∠3 = 105° [Vertically opposite angles]

m∠3 = m∠4 = 105° [Corresponding angles]

Therefore, all four angles measure the same as 105°.

Answer:

B

Step-by-step explanation:

B. h = 0.75m + 49.5, models Jeremy's growth spurt, where h represents his height in inches, and m represents time in months.

In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.

here, we have,

Jeremy was 49.5 inches tall,

and every month afterward, his height has increased by 0.75 inch each month.

The equation models Jeremy's growth spurt, where h represents his height in inches, and m represents time in months is,

h =0.75m + 49.5

Hence, B. h = 0.75m + 49.5, models Jeremy's growth spurt, where h represents his height in inches, and m represents time in months.

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Answer:

y>2x−3

Step-by-step explanation:

:)

Answer:

$524.30

Step-by-step explanation:

70+60+25+350+30= 535

535*.02(20%)

10.7

535-10.7=

524.3

Answer:

$107

Step-by-step explanation:

First you have to add up the costs and you get a total of $535

Then you need to make 535 equivalent to 100 then divide by 20 to get 107

Hope that helps and have a great day!

Answer:

-500 and 1/500

Step-by-step explanation:

opposite of a positive is a negative. the fraction for 500 is 500/1 which would be 1/500 as a reciprocal

Answer:

2/3

Step-by-step explanation:

use point slope formula: [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]to find the slope.

3-1=2

8-5=3

your slope is 2/3

Answer:

2/3

Step-by-step explanation:

The formula for slope is y2 - y1 over x2 - x1.

If we plug our numbers in we get 3-1=2

and.

8-5= 3

so the answer is 2/3.

Answer:

The answer is D (There is a big variety in job types, locations, and environments to choose from.)

Answer:D because I just got it right

Step-by-step explanation:

Answer:

The answer to the question provided is 0.

Answer:

3.85 because you have to divide 46.20 and 12  

Step-by-step explanation:

Answer:

a)0.764

b)0.116

c)Expected value =1.75

Variance=1.1375

Step-by-step explanation:

Total Number of employees = 20

Number of promotions awarded = 7

Probability of success p =[tex]\frac{7}{20}[/tex]

Probability of failure q = [tex]1-\frac{7}{20}=\frac{13}{20}[/tex]

We randomly select 5 applications

a) What is the probability that at most 2 employees were promoted?

We will use binomial

[tex]P(X=x)=^nC_r p^r q ^{n-r}\\P(X\leq 2)=P(X=0)+P(X=1)+P(X=2)\\P(X\leq 2)=^{5}C_0 (\frac{7}{20})^0 (\frac{13}{20})^{5-0}+^{5}C_1 (\frac{7}{20})^1 (\frac{13}{20})^{5-1}+^{5}C_2 (\frac{7}{20})^2 (\frac{13}{20})^{5-2}\\P(X\leq 2)=\frac{5!}{0!(5-0)!} (\frac{7}{20})^0 (\frac{13}{20})^{5-0}+\frac{5!}{1!(5-1)!}(\frac{7}{20})^1 (\frac{13}{20})^{5-1}+\frac{5!}{2!(5-2)!} (\frac{7}{20})^2 (\frac{13}{20})^{5-2}\\P(X\leq 2)=0.764[/tex]

b)What is the probability that no employees were promoted?

[tex]P(X=0)=^{5}C_0 (\frac{7}{20})^0 (\frac{13}{20})^{5-0}\\P(X=0)=\frac{5!}{0!(5-0)!} (\frac{7}{20})^0 (\frac{13}{20})^{5-0}\\P(X=0)=0.116[/tex]

c)

[tex]E(X)=np=5 \times (\frac{7}{20})=1.75\\Var(X)=npq=5 \times (\frac{7}{20}) \times \frac{13}{20}=1.1375[/tex]

Answer:

$50.40

Step-by-step explanation:

you just divide it by 5.

Answer:

Angie rode 23 miles

Step-by-step explanation:

Given John's distance 0.23, multiply that by the amount or times of distance that angie rides to find the distance she rode.

0.23 × 100

23

Angie rode 23 miles.

Hope this helps!

Have a nice day!

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Answer:

23 miles.

Step-by-step explanation:

This is an equation in words so let's start by putting it into numbers.

we know that John rides his bike for .23 miles and Angie rides her bike a whopping 100 TIMES as far. That means we would multiply.

.23 x 100 = 23

So that means Angie rides her bike for 23 miles.

Hope that helps and have a great day!

Answer:

8.2

Step-by-step explanation:

Answer:

50 feet?

Step-by-step explanation:

Answer:

50

Step-by-step explanation:

If you subtract 500-450 you get the answer 50, or if you add 450+50 you get 500.

Hope this helps☺️

Answer:

=39w9−16x9

Step-by-step explanation:

Answer:

<CBD=12 degrees

Step-by-step explanation:

Answer:

(7 + x3)

Step-by-step explanation:

Let x represent the number.

Then the expression will (7 + x3)

Answer:

Look at explanation.

Step-by-step explanation:

The error is that the length of the polygon is 5 not 4. The perimeter should be 16 units not 14 units.

The perimeter of the given polygon is 16 units.

The perimeter of a shape is defined as the total distance around the shape. It is the length of the outline or boundary of any two-dimensional geometric shape. The perimeter of different figures can be equal in measure depending upon the dimensions.

From the given figure, length =5 units and width =3 units.

We know that, the perimeter of a rectangle is perimeter =2(length+width)

P= 2l+2w

= 2(5)+2(3)

= 10+6

= 16 units

Therefore, the perimeter of the polygon is 16 units.

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Answer:2/3

Step-by-step explanation:

rise over run and the y-intersect is 3

Answer:   K= 16/3=5.333

Step-by-step explanation: Search up tiger algebra for other problems and the answer THEY HELP

Answer:

Please find the answer in the explanation

Step-by-step explanation:

Given that a red ball rolls for 6 meters across a sticky level surface and slows down to a stop. the ball was rolling at 36 meters per second when it began to roll across the sticky surface. To find the acceleration, let us use third equation of motion

V^2 = U^2 + 2as

As the object is moving to stop, V = 0

0 = U^2 - 2as

36^2 = 2 × a × 6

1296 = 12a

a = 1296 / 12

a = 108 m/s

The velocity final = 0

The velocity initial = 36 m/s

the velocity average = (36 + 0)/2

Average velocity = 36/2 = 18m/s

the distance the ball rolled = 6m

and the time of the balls roll across the sticky surface will be achieved by using first equation of motion

V = U + at

V = 0

0 = 36 - 108t

108t = 36

t = 36 / 108

t = 0.3 seconds