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Bogdan [553]
3 years ago
7

Help me pleaseeeeeeeeeeeeeeee

Mathematics
1 answer:
inn [45]3 years ago
4 0

Answer:

1) n^2 – 3 n + 8   4^2 – 3*4 + 8 = 12    

2)    (x^2 – 4 y) / 2      (16 + 12) / 2 = 14

3) 4 * |-7 – 2| = 4 * 9 = 36     Abs -9 = 9  

4) 19 – x^2 = 19 – 25 = -6     (-5)^2 = 25

5) S^2 t – 10 = -8^2 * ¾ -10 = 64 * ¾ - 10 = 38

6) 4 p^2 + 7 q^3 = 4 * 9 + 7 * (-8) =  - 20      (-2)^3 = -8

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Hey i need help please
Papessa [141]
 255.is the answer because of the 38 and the 48 percent of each of both the x and y and is you add then times them you get 255 as your answer
5 0
3 years ago
Need help quick simplify the expression (-4) power of 3
sveticcg [70]

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-64

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Multiple the polynomial (4x^2 + 4x + 6)(7x + 5)
Mazyrski [523]

Answer:

28 x³ + 48 x² + 62 x + 30

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given that the polynomial equation

            (4 x² + 4x +6)(7x+5)

Multiply

   ⇒   4 x² ( 7 x+5) + 4 x ( 7x+5) + 6 (7x+5)

  ⇒    28 x³ + 20 x² + 28 x² + 20 x + 42 x + 30

  ⇒    28 x³ + 48 x² + 62 x + 30

               

8 0
3 years ago
-15d+20=35,............................
Alex
D=-1
-15d=15 so -d=1 so d=-1
6 0
4 years ago
Read 2 more answers
#81 please!!!!!! I’ll rate you!
natta225 [31]

The circumference of a circle with radius r is

C=2\pi r

So, one quarter of a circumference will be

\dfrac{C}{4}=\dfrac{\pi r}{2}

You radius is 6, so we have

\dfrac{C}{4}=\dfrac{6\pi}{2}=3\pi \approx 9.42

6 0
4 years ago
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