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timofeeve [1]
3 years ago
5

What is the value of b in this equation? A. -20 B. -6 C. 6 D. 20

Mathematics
2 answers:
kobusy [5.1K]3 years ago
8 0

Answer:

Step-by-step explanation:

a- 12

b- 2

c- 11

and the next part is

x- 6

y- 18

stepan [7]3 years ago
5 0

Answer:

B

Step-by-step explanation:

Using the rules of exponents

(a^m)^{n} = a^{mn}

a^{-m} = \frac{1}{m}

Then

(y^b)^{4} = \frac{1}{y^{24} }

y^{4b} = y^{-24}

Equate the exponents

4b = - 24 ( divide both sides by 4 )

b = - 6 → C

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If this is equal to 8 find x
dolphi86 [110]
I think it is A. not sure though
8 0
3 years ago
Can you help me please ​
alexira [117]

Answer:

Please check the explanation.

Step-by-step explanation:

Given that

|v|=38

Ф = 120°

<u>Finding the horizontal component</u>

The horizontal component can be obtained using the formula

Vx = |v| cos Ф

     = 38 cos 120°

     = 38 (-0.5)

      = -19

Thus, the  horizontal component is:

Vx = -19

<u>Finding the vertical component</u>

The vertical component can be obtained using the formula

Vy = |v| sin Ф

    = 38 sin 120°

    = 38 (0.86)

    = 32.68

Thus, the vertical component is:

Vy = -19

  • A vector 'v' with magnitude |v| and direction Ф can be written as:

v = |v| cos Ф i + |v| sin Ф j

As

|v|=38

Ф = 120°

Thus, the vector is

v = 38 cos 120° i + 38 sin 120° j

or

v = -19 i + 32.68 j

5 0
3 years ago
I need help in the middle one
azamat
Which one is the middle one ?
4 0
3 years ago
How do you find the variable when it’s on both sides of the equation
ASHA 777 [7]

If, for example, you had x on one side and x on the other, then subtracting x from both sides "disappears" x. If no other power of x shows up on either side, then your equation either has no solution or is always true.


3 0
3 years ago
How do you write 900 in expanded form
Dvinal [7]
Well its
900+0+0
basically
like if it was
9,234
then it would be
9000+200+30+4
7 0
3 years ago
Read 2 more answers
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