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Oxana [17]
3 years ago
15

Help me? ill give 10 points.

Mathematics
2 answers:
OlgaM077 [116]3 years ago
7 0
$6.50 hope this help you
Svetradugi [14.3K]3 years ago
5 0

Answer:

Step-by-step explanation:

6.50$

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The graph of y = f(x) is shown.<br> a) Find f(0)<br> 4-<br> 3.<br> b) Give the roots of f(x) = 0
Fiesta28 [93]

Answer:

f(0) = 2

Roots are;

-2 and -1

Step-by-step explanation:

F(0) simply refers to the y-values when x = 0

This is the point at which the graph crosses the y-axis

the value here is 2

To

find the roots of f(x) , we simply find the points at which the plot crosses the x-axis

we have this at x = -2 and x = -1

These are what represents the roots of the equation

5 0
2 years ago
A car has mass 1500 kg and is traveling at a speed of 35 miles/hour. what is its kinetic energy in joules? (Be sure to convert m
photoshop1234 [79]

Answer:

Factor by which kinetic energy increase = 4 times

Step-by-step explanation:

Given,

  • Mass of the car, v1 = 1500 kg
  • initial speed of car = 35 miles/h

                               =\dfrac{35\times 1609.34}{3600}\ m/s

                               = 15.64 m/s

Initial kinetic energy of the car is given by,

k_1\ =\ \dfrac{1}{2}.m.v_1^2

       =\ \dfrac{1}{2}\times 1500\times (15.64)^2\ joule

       = 183606.46 J

  • Final velocity of car v2 = 70 miles/hour

                                      =\dfrac{70\times 1609.34}{3600}

                                      = 31.29 m/s

So, final kinetic energy of car is given by

k_2\ =\ \dfrac{1}{2}.m.v_2^2

        =\ \dfrac{1}{2}\times 1500\times (31.29)^2

        = 734425.84 J

Now, the ratio of final to initial kinetic energy can be given by,

\dfrac{k_2}{k_1}=\ \dfrac{734425.84}{183606.46}

=>\ k_2\ =\ 4k_1                      

Hence, the kinetic energy will increase by 4 times.

7 0
3 years ago
How can i do that problem
7nadin3 [17]
Just write down the question dum dum
4 0
3 years ago
The answers 80kg, 88 divided by 110 then times by 100
Karolina [17]
<span>137.5 because first you divide 110 by 80 and then mupilty the answer by 100

</span>
7 0
3 years ago
Find the value of x°<br><br> 40°<br> 65°<br> 70°<br> 100°
Solnce55 [7]

Answer:

= 40°

Step-by-step explanation:

180-115=65°

65+75=140°

180-140=40°

=40°

6 0
3 years ago
Read 2 more answers
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