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2 years ago

VERNON TOSED A COIN 20 TIMES THE RESULTS WERE8 HEADS AND 12 TAILS

Mathematics

2 answers:

Oxana [17]2 years ago

7 0

Answer:

8+12=20

Step-by-step explanation:

Is there another part to the question or something let me know.

Dafna11 [192]2 years ago

5 0

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Factorise the following expressions.

Setler79 [48]

Answer:

Q.1 a²+10a+24

splitting the middle.

a²+6a+4a+24

=a(a+6)+4(a+6)

(a+6)(a+4)

Q.2 x²+9x+18

splitting the middle

x²+6x+3x+18

x(x+6)+3(x+6)

(x+6)(x+3)

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3 years ago

Which ordered pair is a solution of the system of a linear equation below? Y= 1/4x +2 y= x-1

Tanya [424]

Answer: x = 4, y = 3

<u>Step-by-step explanation:</u>

$y=\dfrac{1}{4}x+2$ and $y=x-1$

Using substitution method we get:

$x-1=\dfrac{1}{4}x+2\\\\\text{subtract}\ \dfrac{1}{4}x\ \text{from both sides}\rightarrow \dfrac{3}{4}x-1=2\\\\\text{add 1 to both sides}\rightarrow \dfrac{3}{4}x=3\\\\\text{multiply both sides by 4}\rightarrow 3x=12\\\\\text{divide both sides by 3}\rightarrow x=4\\\\\text{Insert x = 4 into one of the original equations to solve for y:}\\y=x-1\\y =(4)-1\\y=3$

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3 years ago

What are the answers to a, b, c, d?

Nezavi [6.7K]

Answer:

Step-by-step explanation:

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3 years ago

The complement of a right angle is an obtuse angle. true or false.

Genrish500 [490]

False because the obtuse angle is to large to complement the right angle to diffrent angles can not be both of their compliments

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3 years ago

INCREDIBLY URGENT!

klemol [59]

Answer:

a) By graphing just one interval of length $T$ . b) Infinite number of angles, c) Infinite times.

Step-by-step explanation:

Any function is periodical when:

$f(t) = f(t+i\cdot T)$ , $\forall i \in \mathbb{N}_{O}$

Where $T$ is the period of the function. The periodicity of the function allows us to limit the graphing of the function to just an interval of one period and according to the definition, you can expect same output with n different angles (infinite number of angles and same output infinite times).

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3 years ago