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3 years ago

If you drew a tree diagram showing how many ways 9 coins could be flipped, how many branches would it have?

2 answers:

7 0

There would be 512 different branches.

One you flip a coin, there are 2 branches in a tree diagram. Since, we are flipping a coin 9 times, we have to multiply 2 by itself 9 times.

2^9 = 512 branches

zheka24 [161]3 years ago

6 0

Answer:

512 branches.

Step-by-step explanation:

We are asked to find the number of branches a tree diagram that represents total number of ways to flip 9 coins.

We know that when we flip a coin, we get two outcomes: heads or tails.

When we will flip 9 coins, the number of outcomes would be 2 multiplied to itself by 9 times that would be:

$2^9=512$

Therefore, the tree diagram that representing the total number of ways to flip 9 coins would have 512 branches.

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Solve 9x^2- 17x- 85 = 0 Give your solutions correct to 3 significant figures.

dybincka [34]

Answer:

$x =\frac{17}{18} +\frac{1}{18} \sqrt{3349}$ OR $x =\frac{17}{18} +\frac{-1}{18} \sqrt{3349}$

Step-by-step explanation:

9x2−17x−85=0

For this equation: a=9, b=-17, c=-85

9x2+−17x+−85=0

Step 1: Use quadratic formula with a=9, b=-17, c=-85.

$x =\frac{-b + \sqrt{b^{2}-4ac } }{2a}$

$x =\frac{-(-17)+\sqrt{(-17)^{2} -4(9)(-85)} }{2(9)}$

$x =\frac{17}{18} +\frac{-1}{18} \sqrt{3349}$

4 0

2 years ago

Pleaseee helppppppppppppppppppp

quester [9]

To find Angle A we use cosine

cos ∅ = adjacent / hypotenuse

From the question

The adjacent is 17

The hypotenuse is 38

So we have

cos A = 17/38

A = cos-¹ 17/38

A = 63.4

<h3>A = 63° to the nearest degree</h3>

To find Angle C we use sine

sin ∅ = opposite / hypotenuse

From the question

The opposite is 17

The hypotenuse is 38

So we have

sin C = 17/38

C = sin-¹ 17/38

C = 26.57

<h3>C = 27° to the nearest degree</h3>

Hope this helps you

7 0

2 years ago

Slope of (-7,-2) (9,4)

Olenka [21]

Answer:

m= $\frac{3}{8}$

Step-by-step explanation:

1. Use the slope equation to solve the problem

$\frac{y_{2} -y_{1}}{x_{2} -x_{1} }$

2. Plug in your values into the equation.

$\frac{4-(-2)}{9-(-7)}$

3. Simplify the equation.

m= $\frac{3}{8}$

4 0

3 years ago

29/2 written as a mixed number?

Andru [333]

Answer:

14 $\frac{1}{2}$

Step-by-step explanation:

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2 years ago

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In ΔMNO, n = 78 cm, o = 14 cm and ∠M=12°. Find the length of m, to the nearest centimeter

STALIN [3.7K]

Answer:

Step-by-step explanation:

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2 years ago

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If you drew a tree diagram showing how many ways 9 coins could be​ flipped, how many branches would it​ have?

If you drew a tree diagram showing how many ways 9 coins could be flipped, how many branches would it have?