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Dmitry_Shevchenko [17]
3 years ago
14

Pls help!!! i don’t understand how to solve this

Mathematics
1 answer:
Novay_Z [31]3 years ago
7 0

Answer:

Average velocity = 1

Step-by-step explanation:

f(3) = 3² - 3(3) + 4 = 4

f(1) = 1² - 3(1) + 4 = 2

Velocity = \frac{f(3) - f(1)}{3-1} =\frac{4-2}{3-1} =\frac{2}{2} =1

You might be interested in
A stadium has central rectangular area 125m long by 80 m wide there are two semicircular ends.running tracks goes all way round
olga_2 [115]

) Using formula for cicumference.

Circumference = Pi * diameter

Circumference = Pi * 80m

Circumference = 251.2m.

Total inside length of the curved ends.

2)Total distance round inside of track =

2(125) + 251.2m

= 250 + 251.2

= 501.2m

3) Area of circular ends =

Pi*r^2

= Pi*40^2

= 5024m^2

Area of central area (rectangle)

length * width

125m * 80m

= 10,000m^2

Total area inside track =

5,024m^2 + 10,000m^2

= 15,024m^2

Hope this helps.

:-)

7 0
3 years ago
Robyn bought 2 yards of cotton fabric and yards of fleece fabric. How many yards of fabric did Robyn buy?
Vinil7 [7]
Here, Cotton fabric = 2 yards
yards of fleece fabric = 2 1/2 yards

Total fabric = 2 + 2 1/2 = 4 1/2

In short, Your Answer would be: Option C

Hope this helps!
3 0
3 years ago
Someone help please ​
Lady_Fox [76]

Answer:

if you would stan LOONA you would get all A's):

6 0
3 years ago
What is a 3 2/3 model example?
Annette [7]

I don't have an exact model but this site can help you.


https://learnzillion.com/lesson_plans/7928-use-models-for-division-of-fractions-by-fractions/


I hope this helps you in your studies and have an awesome day!


8 0
3 years ago
13. What is the value of x?
Scilla [17]

9514 1404 393

Answer:

  B.  50

Step-by-step explanation:

The alternate interior angles at transversal t across parallel lines AB and CD will be congruent.

  2x +40 = x +90

  x = 50 . . . . . . . . . . . subtract x+40

The value of x is 50.

_____

<em>Check</em>

2x+40 = 2×50 +40 = 140

x+90 = 50 +90 = 140 . . . . so the obtuse angles are congruent, as they should be

___

<em>Additional comment</em>

The lines AB and CD are not shown as being parallel. We have to assume they are, or we cannot work the problem.

5 0
3 years ago
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