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4 years ago

A dice cube has 6 sides that are numbered 1 to 6. If the cube is thrown once, what is the probability of rolling an odd number?

Mathematics

1 answer:

guajiro [1.7K]4 years ago

7 0

Fraction:3/6 or 1/2
Decimal: .5
Percentage:50%

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Which expression is equivalent to -4(2x+3)-(3x+5)

vfiekz [6]

Answer:

5x-7

Step-by-step explanation:

= -8x - 12 - 3x + 5

= -8x - 3x - 12 + 5

= 5x-7

5 0

3 years ago

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Simplify: cos2x-cos4 all over sin2x + sin 4x

GrogVix [38]

Answer:

$\frac{\cos\left(2x\right)-\cos\left(4x\right)}{\sin\left(2x\right)+\sin\left(4x\right)}=\tan\left(x\right)$

Step-by-step explanation:

$\frac{\cos\left(2x\right)-\cos\left(4x\right)}{\sin\left(2x\right)+\sin\left(4x\right)}$

Apply formula:

$\cos\left(A\right)-\cos\left(B\right)=-2\cdot\sin\left(\frac{A+B}{2}\right)\cdot\sin\left(\frac{A-B}{2}\right)$ and

$\sin\left(A\right)+\sin\left(B\right)=2\cdot\sin\left(\frac{A+B}{2}\right)\cdot\sin\left(\frac{A-B}{2}\right)$

We get:

$=\frac{-2\cdot\sin\left(\frac{2x+4x}{2}\right)\cdot\sin\left(\frac{2x-4x}{2}\right)}{2\cdot\sin\left(\frac{2x+4x}{2}\right)\cdot\cos\left(\frac{2x-4x}{2}\right)}$

$=\frac{-\sin\left(\frac{2x-4x}{2}\right)}{\cos\left(\frac{2x-4x}{2}\right)}$

$=\frac{-\sin\left(\frac{-2x}{2}\right)}{\cos\left(\frac{-2x}{2}\right)}$

$=\frac{-\sin\left(-x\right)}{\cos\left(-x\right)}$

$=\frac{-\cdot-\sin\left(x\right)}{\cos\left(x\right)}$

$=\frac{\sin\left(x\right)}{\cos\left(x\right)}$

$=\tan\left(x\right)$

Hence final answer is

$\frac{\cos\left(2x\right)-\cos\left(4x\right)}{\sin\left(2x\right)+\sin\left(4x\right)}=\tan\left(x\right)$

6 0

3 years ago

PLZ HELP I GIVE BRAINLIEST!!!

GREYUIT [131]

Answer:

800 × ( 3.87÷ 100 ) × 1

= 30.96

8 0

3 years ago

Solve for x: 5(x + 3) = 4(x − 3)

OLEGan [10]

Answer:

x = -27

Step-by-step explanation:

Step 1 :

Equation at the end of step 1 :

(5 • (x + 3)) - 4 • (x - 3) = 0

Step 2 :

Equation at the end of step 2 :

5 • (x + 3) - 4 • (x - 3) = 0

Step 3 :

Equation at the end of step 3 :

x + 27 = 0

Step 4 :

Solving a Single Variable Equation :

4.1 Solve : x+27 = 0

Subtract 27 from both sides of the equation :

x = -27

One solution was found :

x = -27

Processing ends successfully

plz mark me as brainliest :)

8 0

3 years ago

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A circle has a mass of 3 grams and a square has a mass of 2 grams. what is the mass of a triangle in grams.

svp [43]

Answer:

Step-by-step explanation:

from some other question so thank this guy

Frika

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3 years ago

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