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BARSIC [14]
3 years ago
10

4.4 times 10 to the power of -5 in standard form

Mathematics
1 answer:
murzikaleks [220]3 years ago
8 0

Answer:

0.000044

Step-by-step explanation:

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What is the theoretical probability of rolling a sum of 8 on one roll of two standard number cubes
Vesnalui [34]

I just took the test, the answer is 5/36.

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3 years ago
Find the length of AB
aniked [119]
FIRST QUESTION
Given points are:
A(2, -4)  and B(6, 2)
Now,  Use the distance formula.
distance formula = \sqrt{  (x_{2}- x_{1})^{2} + ( y_{2} - y_{1} )^{2}  }
 
Now, plug the values into the formula, So,
distance  = \sqrt{  (6- 2)^{2} + ( 2 - (-4))^{2}  }
               
                = \sqrt{  (6- 2)^{2} + ( 2 +4))^{2}  }
    
                = \sqrt{  (4)^{2} + ( 6))^{2}  }
 
                = \sqrt{ 16+36}
 
                = \sqrt{52}
  
               = 2 \sqrt{13}

So, the length of AB is 2 \sqrt{13}.




<span>THIRD QUESTION
</span>Two points given are:
A(3, -2) and B(1, 1)
Also given that B is the midpoint of AC.

Let, the co-ordinates of C be C(a, b).
Now, using midpoint formula,
Midpoint = (\frac{  x_{1}+ x_{2}   }{2} , \frac{ y_{1}+ y_{2}  }{2} )
        
(1, 1)=(\frac{ 3+ a }{2} , \frac{ -2+b }{2} )


Now, equaling the ordered pair, we have,

1=\frac{ 3+ a }{2}  .............equation (1)   

1=\frac{ -2+b }{2}  ................equation (2) 

Now, taking equation (1)
1=\frac{ 3+ a }{2}

1*2=3+a

2-3=a

a=-1

Now, taking equation (2)
1=\frac{ -2+b }{2}

1*2=-2+b

2+2=b

b=4

<span>So, the co ordinates of C are (a, b) which is <u>(-1 , 4)



</u></span>
<span>SECOND QUESTION:
</span>Given equations are:
2x + 3y = 14.....................equation (1)
-4x + 2y = 4 .....................equation (2)
Taking equation (2)
-4x + 2y = 4
2y = 4 + 4x
y = (4 + 4x) / 2
y = 2 + 2x .......................equation (3)
Now, Taking equation (1)
2x + 3y = 14
Substituting the value of y from equation (3), we get,
2x + 3(2 + 2x) = 14
2x + 6 + 6x = 14
8x = 14 - 6
x = (14 - 6) / 8
x = 1

Taking equation (3)
y = 2 + 2x
Now, substituting the value of x in equation (3), we get,
y= 2 + 2 (1)
y = 2 + 2
y = 4

So, x=1 and y=4

6 0
3 years ago
What 5 divided by 125.
yuradex [85]
The answer is 0.04 its that easy

4 0
3 years ago
Read 2 more answers
What is the derivative of cosx
grandymaker [24]
-sinx + C
hope this helps!
7 0
3 years ago
Please help i wanna move to the next grade,10 points
AfilCa [17]

Answer:

C -1

Step-by-step explanation:

- 3x + 2 < 5

5 - 2 = 3

- 3x  \div  - 3

3 \div  - 3 =  - 1

x =  - 1

4 0
3 years ago
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