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lbvjy [14]
3 years ago
8

Hellllllllllllllllllp me pls

Mathematics
1 answer:
german3 years ago
5 0

Answer:

the equation equals 2

Step-by-step explanation:

4^2+(36/6)-(12+8)

16+6-20

-4+6

2

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A pair of dice was rolled many times
nignag [31]

Answer: 7/24

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Solve (factorise ).<br>​
Slav-nsk [51]

Answer: (1)  x²y (2) 7pqr  (3) a  (4) 6a²  (5) y³z²

Step-by-step explanation:

(1)  x^4y³ and x²y

     x^4y³ =  x²y(x²y²)

    x²y      = x²y

Therefore the Highest Common factor

               x²y which is the common factor.

(2) 14p²qr^4 = 2 x 7 x p² x q  x r^4

   49p²q²r    = 7 x 7 x p² x q² x r

   35pqr       = 5 x 7 x p x q x r

Therefore HCF =  7 x p x q x r

                         = 7pqr

(3) -a^5             = -( a x a x a x a x a )

                         = -(a^5)

       ab³            =   a x b x b x b

Therefore HCF =   a

(4)   6a²             = 2 x 3 x a x a

      -18a6          = -( 2 x3 x 3 x a x a x a x a x a x a)

     -12a²            = -( 2 x 2 x 3 x a x a )

Therefore HCF  = 2 x 3 x a²

                          = 6a²

(5)   3y³z²           = 3 x y x y x y x z x z , 3 x y³ x z²

      15y^4z²       =  3 x 5 x y x y x y x y x y x z x z, 3 x 5 x y^4 x z²

      y^6z³          = y^6 x z³

Therfore HCF  = y³ x z²

                         = y³z²

3 0
3 years ago
The mass of a carbon atom is 1.994 × 10-23 grams. The mass of a hydrogen atom is 1.67 × 10-24 grams. What is the difference of t
Bezzdna [24]
Solving:
1.994*10^{-23}\:-\:1.67*10^{-24} = &#10;
(1.994 - 0.167 )*10^{-23}
\boxed{\boxed{1.827*10^{-23}\:grams}}\end{array}}\qquad\quad\checkmark

4 0
3 years ago
Cam and Madison were investing money into two different accounts. They both invested $550
Arlecino [84]

Answer:

After 5 years, Cam's account will have $ 616.04 while Madison's account will have $ 638.53.

Step-by-step explanation:

Given that Cam and Madison were investing money into two different accounts, both investing $ 550 each, and Cam invested into an account at an annual interest rate of 2.7% compounded monthly while

Madison invested into an account that had an annual interest rate of 3% compounded quarterly, to determine the balances of both accounts after 5 years, the following calculations must be performed:

Cam

X = 550 (1 + 0.027 / 12) ^ 5x12

X = 550 (1 + 0.027 / 12) ^ 60

X = 616.04

Madison

X = 550 (1 + 0.03 / 3) ^ 5x3

X = 550 (1 + 0.03 / 3) ^ 15

X = 638.53

Thus, after 5 years, Cam's account will have $ 616.04 while Madison's account will have $ 638.53.

4 0
3 years ago
A certain granola bar has 2 grams of fiber. This is 8% of the recommended daily value. How many grams of fiber are recommended d
xeze [42]
If you formulate the question into a word equation it comes out: 

2 grams fiber = .08   <span>×    DRV
          </span>↑          ↑   ↑     <span>↑</span>      <span>↑
    2 g fiber    is  8%  of   the daily recommended value.

Now solve for DRV to find the daily recommended value:

2 g fiber/.08 = DRV

DRV = 25 g fiber</span>
6 0
3 years ago
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