Giving brainlest plz help me fast!!! I know this is physics but its also math (Look its math in science ok)


Interpreting Velocity vs Time Graphs

A graph titled velocity versus time has horizontal axis time (seconds) and vertical axis velocity (meters per second). A line has 3 straight segments. Line segment A runs from 0 seconds 0 meters per second to 4 seconds 40 meters per second. Then segment B runs to 9 seconds 40 meters per second. Then segment C runs to 10 seconds 10 meters per second.


Use the graph to determine acceleration and velocity.


Which segments show acceleration?




What is the velocity of segment B?



Choices for the first question:


A. A and B


B. A and C


C. B and C


Choices for the second question:


A. 8 m/s


B. 10 m/s


C. 40 m/s


D. - 40 m/s

Answer:

[tex]v = \frac{16}{3} \: \: and \: \: u = \frac{20}{3} [/tex]

Step-by-step explanation:

In triangle WYZ ,

[tex] {u}^{2} = {4}^{2} + {v}^{2} = 16 + {v}^{2} [/tex]

In traingle WXZ ,

[tex] {(3 + v)}^{2} = {5}^{2} + {u}^{2} [/tex]

Putting the value of U^2 in above eqn.

[tex] = > {(3 + v)}^{2} = 25 + (16 + {v}^{2} )[/tex]

[tex] = > {v}^{2} + 6v + 9 = 41 + {v}^{2} [/tex]

[tex] = > {v}^{2} - {v}^{2} + 6v = 41 - 9[/tex]

[tex] = > 6v = 32[/tex]

[tex] = > v = \frac{32}{6} = \frac{16}{3} [/tex]

Putting the value of V in eqn. below :-

[tex] {u}^{2} = 16 + { (\frac{16}{3} )}^{2} [/tex]

[tex] = > {u}^{2} = \frac{256}{9} + 16[/tex]

[tex] = > {u}^{2} = \frac{256 + 144}{9} = \frac{400}{9} [/tex]

[tex] = > u = \sqrt{ \frac{400}{9} } = \frac{20}{3} [/tex]

Answer:

its a 48 lol (kkkkkkkkkkk)

Answer:

the cube root of 64 is 3√64=4.

Step-by-step explanation:

Hope it's answer you plz mark as Brainlist

Step-by-step explanation:

The square root of a fraction is the square root of the numerator over the square root of the denominator. In this case, 1/4. The square root of 1/16 = 1/4 Ans.

The square root of 1/16 is 1/4.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

√(1/16)

This can be written as,

= √1 / √16

= 1 / 4

Thus,

1/4 is the square root of 1/16.

Learn more about expressions here:

https://brainly.com/question/3118662

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Answer:

it doesn't show what your talking about be more specific.

Step-by-step explanation:                                                                                               explain what your talking about.

Answer:

The answer is c: -42

Step-by-step explanation:

Because f(8): 6(1-8) is 6(-7) so is -42.

Answer:

3 + 4 = 7  which is true.

Step-by-step explanation:

Whenever you have an equation with a plain variable (that is, no exponent included), there is only one number that will work when substituted for x.

To solve it, you have to "undo" what is done to the variable. You also go in the reverse order of operations, so you do the addition/subtract first, then multiplication/division.

You also have to do the same to both sides, kind of like keeping a balance scale in balance.

In this case, we subtract 4 from both sides first:

3x + 4 -4 = 7 - 4

The + 4 - 4 cancel each other out, so you get:

3x = 3

3x means "3 times x" so you divide by 3 to undo it. I will use the / to indicate division:

3x / 3 = 3 /3  

so 1x = 1.

Since 1x is "1 times x" it is the same as x by itself, so:

x=1

AND, if we substitute 1 back into the original equation (the asterisk stands for multiply):

3 * 1 + 4 = 7

3 * 1 is 3, so:

3 + 4 = 7     which is true.

1 is the only number that works.

Hope this helped.

Answer:

2(2x+3)(6x-5)

Step-by-step explanation:

2(12x²+8x²-15)

2(12x²+18x-10x-15)

2(6x(2x+3)-5(2x+3))

2(2x+3)(6x-5)

Answer: b

Step-by-step explanation:

Answer: 295

Step-by-step explanation: The ratio is 8 to 3 so every student that likes chocolata there the 3 students that like vanila so 8-3 is 5 and 150-5 is 145 add 150+145 to get 295

Answer: -2.75*x - 4.7

Step-by-step explanation:

In the equation we have only one variable, this means that the minimum possible number of terms will be two, one term with x, and one term without x.

We can start with the equation:

(-0.25x - 3) - (2.5x + 1.7)

Now, let's rewrite this as:

-0.25x - 3 - 2.5x - 1.7

(-0.25*x - 2.5*x) + (-3 - 1.7)

Solving the parentheses we get:

-2.75*x - 4.7

That is the equivalent expression that has the fewest possible terms

Answer:

100%

Step-by-step explanation:

5 - 2.5 = 2.5, 2.5 / 2.5 = 1, 1 x 100 = 100% :D

The opposite of 4 is -4 :/

Answer:

-4

Step-by-step explanation:

correct have a nice day

Hey there!

(-3)^0 / (-3)^2

(-3)^0 = 1 ⬅️ Numerator

(-3)^2 = (-3)(-3) = 9 ⬅️ Denominator

Answer: 1/9 ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

Answer:

8 + 1/3n

Step-by-step explanation:

Answer:

18%

Step-by-step explanation:

9/50 = 0.18 and 0.18 is 18% in percentage form

Answer:

18%

Step-by-step explanation:

FIrst set up a fraction so that later we can convert that into a percentage:

9/50

9 represents the number of tickets sold and the 50 represents the total

We divide numerator by denominator.

9/50 =

0.18

We multiply by 100 to get our percentage and we get 18%

Answer:

x = -4

Step-by-step explanation:

there is no y-intercept when slope is undefined

Undefined slope indicates a vertical line passing through the x-axis at the x-coordinate of any known point

Answer:

4

Step-by-step explanation:

to find the slope, you have to do rise/run.

you rise up from the first dot 4 times,

then you run once.

4/1

so the answer is 4

Answer:

What is the question?

Step-by-step explanation:

Answer:

14 groups

Step-by-step explanation:

Given

[tex]Groupings = \frac{1}{2}\ day[/tex]

[tex]Duration = 1\ week[/tex]

Required

Determine the number of group in the week

To do this, we simply divide the duration by the number half day group.

This gives:

[tex]Group = \frac{Duration}{Groupings}[/tex]

[tex]Group = \frac{1\ week}{1/2\ days}[/tex]

Convert week to days

[tex]Group = \frac{7\ days}{1/2\ days}[/tex]

[tex]Group = \frac{7}{1/2}[/tex]

[tex]Group = 7 / \frac{1}{2}[/tex]

Convert to multiplication

[tex]Group = 7 * \frac{2}{1}[/tex]

[tex]Group = \frac{14}{1}[/tex]

[tex]Group = 14[/tex]

Hence, there are 14 groups

Answer:

104

Step-by-step explanation:

156 divided by 6. 156-26=130. now 20 percent of 130 =26. 130-26 = 104

Answer:

This is the answer

Answer:

did the math person above is right sorry for being late :)

Step-by-step explanation:

Answer:(1, 1)

Step-by-step explanation:

u just move it 4 left and 3 up cuz x is left and right and its negative so left, then y is up and down and it's positive so up

Answer:

B) one function has a higher rate of change

Step-by-step explanation:

I used process of elimination

A) one function is linear are the other is non linear:

False, because they are both lines.

C) one function has a higher starting value

False, because they both start at 0

D) they are both the same function

False, because one has a steeper slope than the other one

Answer:

Domain: {2,4,5,9}

Range: {-2,0,2,4}

Function: No

Step-by-step explanation:

Domain = x

Range = y

Domain: {2,4,5,9}

Range: {-2,0,2,4}

Function: No

Answer:

domain = { 2, 4, 5, 9 }

range = { -2, 0, 2, 4 }

function = one-to-many