!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Correct question is;

Consider these statements written in ordinary language:

A The speed of the car is proportional to the distance it has traveled.

B The car is speeding up.

C The car is slowing down.

D The car always travels the same distance in the same time interval.

E We are driving backwards.

F Our acceleration is decreasing. Denoting by s(t) the distance covered by the car at time t, and letting k denote a constant, match these statements with the following mathematical statements by entering the letters A through F on the appropriate boxes:

s′′<0.

s′ is constant

s′<0

s′′′<0

s′′>0

s′=ks

Answer:

Answers given below.

Step-by-step explanation:

F) acceleration is the second derivative of distance with respect to time.

Thus; s'' < 0

D) Car travels the same distance in the same time interval. This means the speed is constant. Speed is the first derivative of distance with time. Thus;

s' is constant

E) Driving backwards means that speed is; s' < 0

C) Car is slowing down means negative acceleration. Thus; s'' < 0

B) Car is speeding up means acceleration is greater than 0. Thus: s'' > 0

A) Car speed being proportional to the distance it has covered means that; s' ∝ s. Thus;

s' = ks

Answer:

The length of the ramp must be at least 14.71 feet

Step-by-step explanation:

Given

[tex]BC = 2.3ft[/tex]

[tex]\theta = 9^\circ[/tex]

See attachment for complete figure

Required

Length of the ramp (z)

To do this, we consider sin of angle A ([tex]\theta[/tex]).

So, we have:

[tex]sin\theta = \frac{Opposite}{Hypotenuse}[/tex]

This gives:

[tex]sin(9)= \frac{2.3}{z}[/tex]

Make z the subject

[tex]z= \frac{2.3}{sin(9)}[/tex]

[tex]z = \frac{2.3}{0.1564}[/tex]

[tex]z = 14.71 ft[/tex]

The length of the ramp must be at least 14.71 feet

Answer:

13

Step-by-step explanation:

Answer:

Angle C =  45°

Step-by-step explanation:

Hello There!

If you didn't know opposite angles are congruent in parallelograms

So ∠A≅∠C and ∠B≅∠D

So if ∠A = 45° then ∠C also equals 45°

As it is a parallelogram

[tex]\\ \sf\longmapsto <B\cong <D[/tex]

[tex]\\ \sf\longmapsto <A\cong <C[/tex]

[tex]\\ \sf\longmapsto <C=<A=45°[/tex]

Answer:

one of the answer is 0,8

the other one I have no idea

Answer:

Step-by-step explanation:

the answers to this are

A. (0,8)

B. (-2,0)

D. (4,0)

hope this helps!

Answer: No 0.3 as a percentage is larger than 25%

Step-by-step explanation:

'percent' is 'over hundred'

if you convert 0.3 into a percentage it becomes 30 percent

Samuel says that 25% is greater than 0.3 is not correct statement.

A percentage is a number or ratio expressed as a fraction of 100.

The percentage is denoted by the symbol %.

The percentage is used or most important application is to compare any two quantities. We compare one quantity against another, with the second quantity rebased to 100 by using percentage.

Samuels  says that 25% is greater than 0.3 is a false.

25% when it is converted to decimals.

25 divided by 100

we will get 0.25

and if 0.3 is converted to percentage

0.3×100=30%

We know that 30% is greater than 25%.

hence Samuel says that 25% is greater than 0.3 is not correct.

To learn more on Percentage click:

https://brainly.com/question/28269290

#SPJ2

Answer:

4) 91.75

Step-by-step explanation:

7x+20+9x-4=180

16x=164

x=10.25

7(10.25)+20=

71.75+20=91.75

Answer:

You are correct 91.75 is the answer

Step-by-step explanation:

This is a cyclic quadralterial since all the. vertices of the quadralterials touch the circle circumference. Opposite angles are supplementary in cyclic quadralterials. Angle C and Angle D are opposite angles so

[tex]7x + 20 + 9x - 4 = 180[/tex]

[tex]16x + 16 = 180[/tex]

[tex]16x = 164[/tex]

[tex]x = 10 \frac{4}{16} [/tex]

[tex]x = 10.25[/tex]

Plug 10.25 into 7x+20

[tex]7(10.25) + 20 = 91.75[/tex]

You are correct

Answer:

a/9

2+5

0+0

maybe 7

an expression is any problem that does NOT have an equal sign

Answer:=7

Step-by-step explanation:

2+5

0+0

maybe 7

an expression is any problem that does NOT have an equal sign

Answer:

a= - 1/4

Step-by-step explanation:

Answer:

- 1/4

Step-by-step explanation:

7a + 2 = 3a + 1

subtract the 1 from both sides

7a + 1 = 3a

subtract 7a from both sides

1 = - 4a

divide by - 4

A = - 1/4

Answer:

C [tex]\leq 34[/tex]

Step-by-step explanation:

Answer:

34is the answer gor the question

Answer:

49

Step-by-step explanation:

|-7|=7, and 7*7 = 49

Answer:

For the fractions question:

1/4<1/2

3/4<2/3

5/7<3/5

8/9>8/10

7/10<6/8

Hope this helps! (:

Answer:

30 jellybeans

Step-by-step explanation:

5 + 3 = 8 (Total units of jellybeans)

8 units = 48

1 unit = 48 ÷ 8 = 6

Me : Sister

5 : 3

Since I get 5 units...

5 units = 6 x 5 = 30

Answer: A - 33/100

Step-by-step explanation:

You have to multiply the first fraction by 10 to make 100 the least common denominator - 3/10(10) = 30/100

Add 30/100+3/100 = 33/100

Answer:

20

Step-by-step explanation:

each of the side lengths are multiplied by 2.5

Answer:

make a graphical representation for our case do we have infinite lines pass through a point M?

Step-by-step explanation:

If the graphs of the equations do not intersect (for example, if they are parallel), then there are no solutions that are true for both equations. If the graphs of the equations are the same, then there are an infinite number of solutions that are true for both equations.

Answer:

x+y= 90

x+ y/2= 65

90-65= 25

y= 2*25= 50

x=40

Step-by-step explanation:

Answer:

Este acontecimento se repetirá 300 dias depois.

Step-by-step explanation:

Quando os eventos se repetirão no mesmo dia?

Cada evento tem uma frequência.

Eles ocorrem simultaneamente a cada x dias, e x é dado pelo MMC(Mínimo Múltiplico Comum) entre as frequência.

Neste problema:

A cada 15 dias o avô visita.

A cada 100 dias o tio visita.

A cada 12 dias vai à praia.

Quantos dias depois este acontecimento se repetirá?​

Os três no mesmo dia vão se repetir após x dias, em que x é dado pelo MMC de 15, 100 e 12

MMC de 15, 100 e 12

Fatorando simultâneamente estes valores:

15 - 100 - 12|2

15 - 50 - 6|2

15 - 25 - 3|3

5 - 25 - 1|5

1 - 5 - 1|5

1 - 1 - 1

Então:

mmc(15,100,12) = 2*2*3*5*5 = 300

Este acontecimento se repetirá 300 dias depois.

Answer: 24

Step-by-step explanation:

Linear inequalities with two variables have infinitely many ordered pair solutions, which can be graphed by shading in the appropriate half of a rectangular coordinate plane. To graph the solution set of an inequality with two variables, first graph the boundary with a dashed or solid line depending on the inequality.

Answer:

B is the answer

Step-by-step explanation:

From the given expression in our example we have say

y = d-6d-3dd−6d−3d,

the equivalent expression would be  y = -14-3dd

We can see two different terms

the "d" terms and the "dd" terms

Let us collect like terms

we have

y= d-6d-6d-3d-3dd

y = d-12d-3d-3dd

y= d-15d-3dd

y = -14-3dd

Hence the equivalent expression is y = -14-3dd

Learn more amount collecting like terms in algebraic expression https://brainly.com/question/11172004

Answer:

-8d

guessed and it was right :P

Answer:  goole

Step-by-step explanation:

49-392 +7/ 18

Answer:

Step-by-step explanation:

To find the slope of the tangent at a point we will find the derivative of equation at that point.

a). y = x² - 10x

[tex]\frac{dy}{dx}=\frac{d}{dx}(x^{2} -10x)[/tex]

y' = 2x - 10

At (x = 2),

y' = 2(2) - 10

y' = 4 - 10

y' = -6

From the given equation,

y = 2² - 10

y = -6

Therefore, y-coordinate of the point is y = -6

Equation of the tangent at (2, -6) having slope = -6

y - 2 = -6(x - 2)  

y - 2 = -6x + 12

y = -6x + 14

b). y = [tex]x^{2}+\frac{2}{x}[/tex]

At x = [tex]\frac{1}{2}[/tex]

y = [tex](\frac{1}{2})^2+\frac{2}{\frac{1}{2}}[/tex]

y = [tex]\frac{1}{4}+4[/tex]

y = [tex]\frac{17}{4}[/tex]

Now we have to find the equation of a tangent at [tex](\frac{1}{2},\frac{17}{4})[/tex]

y' = 2x - [tex]\frac{2}{x^{2} }[/tex]

At x = [tex]\frac{1}{2}[/tex]

y' = [tex]2(\frac{1}{2})-\frac{2}{(\frac{1}{2})^2}[/tex]

y' = 1 - 8

y' = -7

Therefore, equation of the tangent at [tex](\frac{1}{2},\frac{17}{4})[/tex] will be,

[tex]y-\frac{17}{4}=-7(x-\frac{1}{2})[/tex]

y = -7x + [tex]\frac{7}{2}+\frac{17}{4}[/tex]

y = -7x + [tex]\frac{31}{4}[/tex]

Answer:

.si sey el senocar 18

Step-by-step explanation:.basflone ne ombla

Answer:

No.

Step-by-step explanation:

Triangle DFE justifies itself with the SAS (side-angle-side) postulate, while Triangle ABC simply shows that ∡B & A are similar. They are not justified by the same standard, and so there is no way to tell if these triangles are similar.

Answer:

11

Step-by-step explanation:

Answer: The answer is:  2.2

~hopefully this helps you, have a gr8 day my friend!~

Step-by-step explanation:

Answer:

36º

Step-by-step explanation:

The sum of a triangle's angles is 180. So, 6x+2x+2x=180. And, 10x=180, and then x=18. Angle C is 2x. To find angle C multiple 18 by 2 to get 36.