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ddd [48]
4 years ago
13

Find two square roots of 9/49

Mathematics
2 answers:
Alisiya [41]4 years ago
6 0
The answer to the question is 3/7
Burka [1]4 years ago
4 0

The answer is 0.12244898


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Pepsi [2]
Commutative property
5 0
4 years ago
Why does the quadratic formula work all the time
Monica [59]

the quadratic formula work all the time because it is suitable for every equation.

3 0
3 years ago
Five bulbs of which three are defective are to be tried in two bulb points in a dark room
iogann1982 [59]

Answer:

D 7

Step-by-step explanation:

Total no. of bulb= 5

no. of defected bulb= 3

no. of not defected bulb=2

Total no. of bulb combination = 5C2

=5!/2!(5-2)!

= 5!/2!3!

= 5×4×3×2×1/2×1×3×2×1

=120/12

=10

( since a room can be lighted with one bulb also)

total no. of bulb combination when room shall not light = 3C2

3!/2!(3-2)!

= 3!/2! 1!

= 3×2×1/2×1×1

= 6/2

=3

Now,

Total no. of trial when room shall light

=10-3

=7

Hence, number of trial when the room shall be lighted is 7 which is option d

8 0
3 years ago
Is the relationship shown by the data linear? If so, model the data with an equation.
zhenek [66]

Answer:

Therefore the equation of the line through ( -7 , 5 ) and ( -5 , 9) is

Linear Relationship i.e y-5=2(x+7)

Step-by-step explanation:

Given:

Let,

point A( x₁ , y₁) ≡ ( -7, 5 )  

point B( x₂ , y₂) ≡ (-5, 9)  

To Find:

Equation of Line AB =?

Solution:

Equation of a line passing through Two points A( x₁ , y₁) and B( x₂ , y₂)is given by the formula

(y - y_{1} )=(\frac{y_{2}-y_{1} }{x_{2}-x_{1} })\times(x-x_{1}) \\

Substituting the given values in a above equation we get

(y-(5))=(\frac{9-(5)}{-5--7})\times (x--7)\\ \\(y-5)=\frac{4}{2}(x+7)\\\\y-5=2(x+7)...............\textrm{which is the required equation of the line AB}

Therefore the equation of the line through ( -7 , 5 ) and ( -5 , 9 ) is

Linear Relationship i.e y-5=2(x+7)

4 0
3 years ago
Which of the following is a solution of the inequality h + 9 < 20?
NeTakaya

Answer:

c.11

Step-by-step explanation:

h + 9 < 20

    -9      -9

--------------------

h<20-9

h<11

4 0
3 years ago
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