The driver of a car traveling at 60 ft/sec suddenly applies the brakes. The position of the car is s(t) = 50t - 2t2, t seconds after the driver applies the brakes. How many seconds after the driver applies the brakes does the car come to a stop? (4 points)

Answers

Answer 1

Answer:

t=12.5s

Step-by-step explanation:

s(t) = 50t - 2t^2

v(t) = 50 - 4t

a(t) = -4

When v(t) = 0, the car stops.

v = u +at

0 = 50 + (-4)t

t = 12.5


Related Questions

2. Caleb needs to solve the problem 2,406 ÷ 6. In what place is the first digit of the quotient for the problem 2,406 ÷ 6?

Answers

Answer: 6/203_____________________________________Divide the first expression by the second expression.6/203__________________________________________________

Hope this helps! 

Also can I please have Brainliest...?

Only if I'm right of course...

What goes on the first blank tick mark?

Answers

Answer:

24

Step-by-step explanation:

The number line should read 18, 24, 30, 36, 42. There is a spacing of 6 units between each tick mark.

Good luck.

Hope this helps!

if the nth term of a sequence is 5n+1 what is the 12th term?

Answers

Answer:

61

Step-by-step explanation:

nth=5n+1

.: 12th=5(12)+1 =60+1

=61

A square with a side length of 4 inches is dilated by a scale factor of 3/2. What is the length of a side of the dilated
square?

Answers

The answer is 6 inches

Can someone help me I don't understand it I was absent on the day they put the answers

Answers

Answer:

See below.

Step-by-step explanation:

Top line

1. slope = -1/3

2. slope = 3/1 = 3

3. slope = 3/-2

Bottom line

4. slope = 3/2

5. slope = 7/3

6. slope = 6/(-2) = -3

a rope of length 13 1/2 m has been divided into 9 pieces of the Same length what is the length of each pice​

Answers

Answer:

When 13 1/2 into proper fraction it will be 27/2=13.5

Then divide 13.5 by 9

It becomes 1.5, so that means the ropes are 1.5 meters each

Step-by-step explanation:

I hope this helps, please give me brainliest

if we divide the 13.5 by 9 we will get the answer 1.5 and so we have 9 pieces of the length 1.5

3 scoops of powder lemonade mix are required to make to courts of lemonade have many scoops of powder eliminate mix are required to make 3 gallons of lemonade

Answers

Answer:

I guess that the question should say:

You need 3 scoops of powder lemonade mix to make two quarts of lemonade. How many scoops of powder lemonade mix are needed to make 3 gallons?

3 gallons = 12 quarts

if you need 3 scoops top make 2 quarts, then you will need (12/2) x 3 = 18 scoops of lemonade powder mix to make 3 gallons of lemonade.

If DE=2x-1, what is the value of x

1. 7
2. 7.5
3. 8
4. 8.5

Answers

Taking into account the 90° rotation: A is D, B is E, and C is F. So, the corresponding side on Triangle ABC to the side DE(2x - 1) is AB (16).

16 = 2x - 1

Add 1 on both sides

17 = 2x

Divide by 2 on both sides

8.5 = x

I believe this is your answer

The value of the variable 'x' will be 8.5. Then the correct option is D.

What is the triangle?

The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180 °.

In the diagram below, ΔABC with sides of 13, 15, and 16, is mapped onto ΔDEF after a clockwise rotation of 90°.

The side AB is equal to DE. Then we have

DE = AB

2x - 1 = 16

2x = 16 + 1

2x = 17

x = 17/2

x = 8.5

The value of the variable 'x' will be 8.5. Then the correct option is D.

More about the triangle link is given below.

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What is 607 times 456

Answers

the answer is 276792

Answer:

276792

Step-by-step explanation:

How can we use variables and equations to help us
solve problems?

Answers

Answer:

Variables help show the numbers and equation show the numbers

Step-by-step explanation:

Answer:

If the equation is in the form, ax + b = c, where x is the variable, you can solve the equation as before. First “undo” the addition and subtraction, and then “undo” the multiplication and division. Solve 3y + 2 = 11. Subtract 2 from both sides of the equation to get the term with the variable by itself.

Step-by-step explanation:

Hope this helps.. ;)

HELP PLEASE 2x+2<-4x+22<6x+10

Answers

Answer:

6//5,10/3

Step-by-step explanation:

maybe hope this is help

What ratio is equivalent to 5:3
O 15:3
20:12
O 15:12
12:20

Answers

Answer:

20:12

Step-by-step explanation:

[tex]5:3 = \frac{5}{3} \\ 20:12 = \frac{20}{12} = \frac{5}{3} \\ = 5:3[/tex]

Answer:

20:12

Step-by-step explanation:

20divided by 4is 5

12 divided by 4 is 3

Find the equation of the line that passes through (4,4) and is parallel to
y=3x+4 Leave your answer in the form y=mx+c

Answers

Answer:

y = - 3x + 5

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

3x + y + 2 = 0 ( subtract 3x + 2 from both sides )

y = - 3x - 2 ← in slope- intercept form

with slope m = - 3

Parallel lines have equal slopes, thus

y = - 3x + c ← is the partial equation

To find c substitute (3, - 4) into the partial equation

- 4 = - 9 + c ⇒ c = - 4 + 9 = 5

y = - 3x + 5 ← equation of line in form y = mx + c

The equation of line which parallel to given line is, [tex]y=3x-8[/tex]

Slope intercept form:

The equation of line in slope intercept form is,

                            [tex]y=mx+c[/tex]

Where m is slope of line and c is y-intercept.

Equation of line given that,

                            [tex]y=3x+4[/tex]

So that, slope of line is [tex]3[/tex]

We have to find the equation of the line that passes through (4,4) and is parallel to given lines.

Since, slope of all parallel lines are same.

Equation of required line is,

                          [tex]y=3x+c[/tex]

Substitute point (4,4) in above line.

                        [tex]4=12+c\\\\c=4-12=-8[/tex]

So that, equation of line become,

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

Learn more about the equation of line here:

https://brainly.com/question/18831322

standard form of 4 + 3y - 2x = 0​

Answers

Answer: 2x-3y=4

Hope this helps!! :)

Please help me with this one please, I've been having trouble figuring this one out.

Answers

Answer:

y = - 2x - 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 2, 5) and (x₂, y₂ ) = (2, - 3)

m = [tex]\frac{-3-5}{2+2}[/tex] = [tex]\frac{-8}{4}[/tex] = - 2

The line crosses the y- axis at (0, - 1) ⇒ c = - 1

y = - 2x - 1 ← equation of line

Y=-2x-1
I hope this helps

PLEASE HELP I HAVE 5 MINUTES 6th GRADE MATH step by step please

Answers

Answer:

4/10

Step-by-step explanation:

0.4 = 4/10 because 0.4=0.40 and 4/10 = 40/100

Answer:

4/10 of his cards are baseball cards.

The fraction line could help you by turning the equivalent fraction into a decimal.

You could write the decimal in tenths as a fraction as 4/10 because there are 10 parts and 0.4 or his cards are baseball cards.

9 = -d + 17

A.-2
B.8
C.10
D.-8

Answers

Subtract 17 from both sides

9= -d+17
9 - 17 = -d + 17 - 17

-8 = -d

Then divide.

-8/1 = -d-1

Cancel terms that are in both numerator and denominator

Answer:
8 = d
Pringles exposed for being nazi corporation? Here’s evidence for my claim

What are the discontinuities of the function f(x) = the quantity of x squared plus 2 x minus 24, all over 6 x plus 24.? (1 point)

Answers

Answer:

there i have the image of the answer

What is y when x=8 for the equation y=(3/4)x - 5

Answers

y=3/4(8)-5
y=24/4-5
y=6-5
y=1

PLEASE HELP Due Today!

Find the distance between A and B​

Answers

2.6 is the distance between A and B.
2.6 is ur answer.....

Solve for x:
( x - 2 ) ( x + 3 ) ( 2x - 7 ) = 0

Answers

Answer:

x=2, x=-3, or x=3.5

Step-by-step explanation:

Make them all in 3 equations equal to 0. The number of brackets, the number of equations.  

please help please help please help please help please help please help please help please help

Answers

I Believe it’s the first one

A line has this equation: y=-10x-9
Write an equation for the parallel line that goes through (9,1).​

Answers

Answer:

Step-by-step explanation:

y - 1 = -10(x - 9)

y - 1 = -10x + 90

y = -10x + 91

write 24/35 as a percentage.
Round your answer to the nearest tenth of a percent.

Answers

68.6%. You can divide 24 by 35 and multiply by 100 to get the percent.

The fraction 24/35 is  equal to 68.57% when converted to a percentage.

To convert a fraction to a percentage, you can follow these steps:

Divide the numerator of the fraction by the denominator.

In this case, divide 24 by 35: 24 ÷ 35

= 0.6857142857142857

Multiply the result from 0.6857142857142857 by 100 to get the percentage.

Multiply 0.6857142857142857 by 100

0.6857142857142857 × 100 = 68.5714285714

Therefore, the fraction 24/35 is equal to 68.57% when converted to a percentage.

To learn more on Percentage click:

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Simplify
2(x+7) 2x + 20
- 2 =
x+4
2x + 8

Answers

Answer:

x = 0

Step-by-step explanation:

2(x+7) 2x + 20 - 2 = x+4(2x + 8) start by distributing

2(x+7) would be 2x+14

4(2x+8) would be 8x+32

2x+14 x 2x + 20 - 2 = x + 8x + 32 now combine like terms

2x and 2x can be combined on the left side

x and 8x can be combined on the right side

4x + 14 + 20 - 2 = x + 8x + 32

4x + 32 = 9x + 32 you can now solve this equation

start by subtracting 4x on both sides

32 = 5x +32 now subtract 32 on both sides

0 = 5x so x = 0

Answer:

x = 0

2(x+7) 2x + 20 - 2 = x+4(2x + 8) start by distributing

2(x+7) would be 2x+14

4(2x+8) would be 8x+32

2x+14 x 2x + 20 - 2 = x + 8x + 32 now combine like terms

2x and 2x can be combined on the left side

x and 8x can be combined on the right side

4x + 14 + 20 - 2 = x + 8x + 32

4x + 32 = 9x + 32 you can now solve this equation

start by subtracting 4x on both sides

32 = 5x +32 now subtract 32 on both sides

0 = 5x so x = 0

Izabella earns $21.24 every 3 weeks. At this rate, how much will she earn in 5 weeks?

Answers

Answer:

$35.40

Step-by-step explanation:

i did the math

Sydney wrote the equation y+1=12(x−3).Explain her error and then write the correct equation in point-slope form. x -1 2 y 3 9

Answers

if the equation is y+=1/2 (x-3) the slope is wrong.  the slope is actually 6. that was the error that Sydney made. i hope this help some of my people out:)

Step-by-step explanation:

now you got this go kill that essay:))))

2x - 4x + 7 = 12
Like terms??

Answers

Answer:

With like terms the answer is x = 5/2

Step-by-step explanation:

PLEASE HELP IM SO CONFUSED!!!!! I attached a photo

Answers

It would be 5^-1

Because 5^7 • 5^5 = 5^12

And dividing would be subtract so 12 - 13 = -1

Please help me with this

Answers

X>-1 is the base function

To make different equations you just have to alter both sides of the equation in the same way
Ex.
X+2>-1+2. Add 2
X+2>1. Simplify

Xx4>-1x4. Multiply by 4
4x>-4. Simplify
4x+3>-4+3. Add 3
4x+3>-1. Simplify

Ex answers
X+2>1
4x+3>-1

Hope this helps!! If so please give it brainliest!!
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