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AURORKA [14]
3 years ago
9

2 questions please help me :) thanks if you do

Mathematics
2 answers:
yulyashka [42]3 years ago
8 0
My answer for 1 was D and my answer for 2 was A.
mezya [45]3 years ago
5 0

Answer:

(1)   6,4

(2) 5,6

Step-by-step explanation:

You might be interested in
Solve for x
Ulleksa [173]

Answer:

C. x = 1

Step-by-step explanation:

To solve this problem the best way is to use the quadratic formula. First make everything equal to 0 by adding 3 to both sides.

3x^2 - 6x + 3 = 0

The quadratic formula is: \frac{-b\pm\sqrt{b^2-4ac} }{2a}. Substitute the values of a, b, and c into the formula. Keep in mind:

  • a = 3
  • b = -6
  • c = 3

\frac{-(-6)\pm\sqrt{(-6)^2-4(3)(3)} }{2(3)} \rightarrow \frac{6\pm\sqrt{36-4(9)} }{6} \rightarrow \frac{6\pm\sqrt{0} }{6} \rightarrow \frac{1\pm0}{1} \rightarrow 1

Therefore, x = 1.

8 0
4 years ago
Does anyone know these answers please help
Aleksandr [31]
For one since since the angles should add up to 180 degrees we must start by adding 55 and 25 which is 80 so 180-80=100 which means c is 100 degrees and for the other I'm going with C
3 0
3 years ago
Help me please it will be greatly appreciated!
s344n2d4d5 [400]

Answer:

5h + 3p

Step-by-step explanation:

1 hardback weighs 5 pounds, then

h hardbacks weigh 5 × h = 5h

1 paperback weighs 3 pounds, then

p paperbacks weigh 3 × p = 3p

total weight = 5h + 3p

4 0
3 years ago
Need help with question number 11
jok3333 [9.3K]

Answer:

..

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
1/2n equals 21 what is n
just olya [345]

Answer:

n=42

Step-by-step explanation:

1/2n=21

2•(1/2n=21)

n=42

5 0
3 years ago
Read 2 more answers
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