M Exercise
3.
0 Fill in the blanks.
process starts as soon as you press the power button to turn on you
computer.
b. The operating system is referred to as the
between the hardware an
the
and between
and other software programs.
C. The
menu displays the most common commands for the selected
d. The operating system talks to and manages devices through
e. Modern operating systems use
2 Choose the correct answer.
a. Software needed to communicate with a piece of hardware is referred to as
i operating system
ii. device driver
iii. file manager
iv. None of these
b. In modern computer systems, the screen shows
Answers
Explanation:
Solution
Given :-
\sf \implies \: Equation \: 3x + 4y - 9 = 0⟹Equation3x+4y−9=0
\sf \implies Point \: (1,3) \: and \: (2,7)⟹Point(1,3)and(2,7)
Let
\sf \implies \: Ratio \: = P \ratio \: 1⟹Ratio=P:1
Using section formula
\implies \sf \: p \bigg( \dfrac{x_2m + nx_1}{m + n} , \: \dfrac{y_2m + y_1n}{m + n} \bigg)⟹p(
m+n
x
2
m+nx
1
,
m+n
y
2
m+y
1
n
)
Where
\begin{gathered} \sf \implies \: x_1 = 1, y_1 = 3 \\ \sf \implies \: x_2 = 2,y_2 = 7\end{gathered}
⟹x
1
=1,y
1
=3
⟹x
2
=2,y
2
=7
\sf \implies \: m = p \: \: and \: n = 1⟹m=pandn=1
Now put the value on formula
\sf \implies\: p \bigg( \dfrac{2 \times p + 1 \times1}{p + 1} , \: \dfrac{7 \times p + 3 \times 1}{p + 1} \bigg)⟹p(
p+1
2×p+1×1
,
p+1
7×p+3×1
)
\sf \implies\: p \bigg( \dfrac{2p + 1 }{p + 1} , \: \dfrac{7 p + 3 }{p + 1} \bigg)⟹p(
p+1
2p+1
,
p+1
7p+3
)
Now put the value of x and y on Given equation
\sf \implies \: 3x + 4y - 9 = 0⟹3x+4y−9=0
\sf \implies3 \bigg( \dfrac{2p + 1}{p + 1} \bigg) + 4 \bigg( \dfrac{7p + 3}{p + 1} \bigg) - 9 = 0⟹3(
p+1
2p+1
)+4(
p+1
7p+3
)−9=0
\sf\implies \: \dfrac{6p + 3}{p + 1} + \dfrac{28p + 12}{p + 1} - 9 = 0⟹
p+1
6p+3
+
p+1
28p+12
−9=0
Takin Lcm
\sf \implies \: \dfrac{6p + 3 + 28p + 12 - 9p - 9}{p + 1} = 0⟹
p+1
6p+3+28p+12−9p−9
=0
\sf \implies\: 6p + 3 + 28p + 12 - 9p - 9 = 0⟹6p+3+28p+12−9p−9=0
\sf \implies \: 34p + 15 - 9p - 9 = 0⟹34p+15−9p−9=0
\sf \implies 25p + 6 = 0⟹25p+6=0
\sf \implies \: p = \dfrac{ - 6}{25}⟹p=
25
−6
Answer
The ratio is -6/25 or -6:25