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3 years ago

HOW MANYHOURS IS 10:30 AM TO 16:30 PM

Mathematics

2 answers:

slega [8]3 years ago

8 0

From 11:30 to 16:30 is 5 hrs

blondinia [14]3 years ago

3 0

16 hours I think...............possibly

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I need help please I don't understand it

german

Answer:

The third and the forth

Step-by-step explanation:

Functions do not have repetition in the x column.

Since the other options have doubles of an x value

(or, to phrase it differently, two y values for one x value)

they are not functions.

3 0

2 years ago

The coordinates of three vertices of a rectangle are (4,3), (3,0), and (-2,0). what are the coordinates of the fourth vertex?

KATRIN_1 [288]

(-1, 3)
this is because in a coordinate plane, using the coordinates you gave it is the missing vertice is (-1,3)

7 0

2 years ago

4. How fast was a driver going if the car left skid marks that were 32 feet long on dry concrete? (The coefficient of friction i

Monica [59]

Answer:

$v_{o} \approx 31.247\,mph$

Step-by-step explanation:

The deceleration experimented by the car is the product of kinetic coefficient of friction and gravitational constant:

$a = \mu_{k}\cdot g$

$a = (1.02)\cdot \left(32.174\,\frac{ft}{s^{2}} \right)$

$a = 32.817\,\frac{ft}{s^{2}}$

The initial speed is computed from the following kinematic expression:

$v^{2} = v_{o}^{2} - 2\cdot a \cdot \Delta s$

$v_{o} = \sqrt{v^{2}+2\cdot a\cdot \Delta s}$

$v_{o} = \sqrt{\left(0\,\frac{ft}{s} \right)^{2}+2\cdot \left(32.817\,\frac{ft}{s^{2}} \right)\cdot (32\,ft)}$

$v_{o}\approx 45.829\,\frac{ft}{s}$

$v_{o} \approx 31.247\,mph$

8 0

2 years ago

Lets see who is smart lol

Simora [160]

9514 1404 393

Answer:

$\square\quad{y=\dfrac{1}{2}x+4}\\\\\square\quad{\dfrac{y-5}{x-2}=\dfrac{1}{2}}$

Step-by-step explanation:

The slope of a line is the same everywhere, so an equation can be written making use of that fact.

$\dfrac{y-y_1}{x-x_1}=\dfrac{y_2-y_1}{x_2-x_1}\\\\\dfrac{y-5}{x-2}=\dfrac{7-5}{6-2}=\dfrac{2}{4}\\\\\boxed{\dfrac{y-5}{x-2}=\dfrac{1}{2}}$

Cross-multiplying gives ...

2(y -5) = x -2

2y -10 = x -2 . . . eliminate parentheses

2y = x +8 . . . . . . . add 10; next, divide by 2

$\boxed{y=\dfrac{1}{2}x+4}$

These equations match choices B and D.

6 0

2 years ago

Which of the following numbers are perfect squares?

professor190 [17]

Answer:

B and D

Step-by-step explanation:

I think i am right

3 0

2 years ago

Read 2 more answers