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2 years ago

You roll two number cubes.

Mathematics

2 answers:

Arte-miy333 [17]2 years ago

7 0

B. Rolling an even or not on the first says nothing about the second dice

sp2606 [1]2 years ago

3 0

Answer:

B) Independent, because the first cube being an even number cannot affect the second cube being 4.

Even if the first cube was a odd number,

that wouldn't have mathematically changed anything about the second cube's outcome.

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Simon draws a rectangle with two sides that are 2 inches long and two sides that are 3 inches long.Chaz draws a figure with the

7nadin3 [17]

The other shape might be a trapezoid.

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3 years ago

Study the Proof Given.

andrezito [222]

Given that B is the midpoint of line AC and line BC is congruent to line DE.

The following statements and reasons, proves that line AB is congruent to line DE.

     Statement                                                   Reasons

1. B is the midpoint of line AC                        Given
2. Line AB is congruent to line BC.               Midpoint of a line segment
3. Line BC is congruent to line DE                  Given
4. Line AB is congruent to line DE                  Transitive property

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2 years ago

In the video at the beginning of the lesson, how many 2-topping pizza combinations were there if there were 7 toppings to choose

elena-s [515]

Answer:

3 or 3 and 1/2

Step-by-step explanation:

2 toppings per pizza

2, 4, 6 and the half pizza with one topping

8 0

2 years ago

Read 2 more answers

(40/5)-7+2? I know the answer but I don’t know how I got to it

ExtremeBDS [4]

Answer:

Step-by-step explanation:

(40/5)-7+2

PEMDAS says parentheses first, so divide inside the parentheses

(8)-7+2

Then add and subtract from left to right

1 +2

8 0

2 years ago

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Please someone help me to prove this.

morpeh [17]

Answer: see proof below

Step-by-step explanation:

Use the Double Angle Identity: sin 2Ф = 2sinФ · cosФ

Use the Sum/Difference Identities:

sin(α + β) = sinα · cosβ + cosα · sinβ

cos(α - β) = cosα · cosβ + sinα · sinβ

Use the Unit circle to evaluate: sin45 = cos45 = √2/2

Use the Double Angle Identities: sin2Ф = 2sinФ · cosФ

Use the Pythagorean Identity: cos²Ф + sin²Ф = 1

Proof LHS → RHS

LHS: 2sin(45 + 2A) · cos(45 - 2A)

Sum/Difference: 2 (sin45·cos2A + cos45·sin2A) (cos45·cos2A + sin45·sin2A)

Unit Circle: 2[(√2/2)cos2A + (√2/2)sin2A][(√2/2)cos2A +(√2/2)·sin2A)]

Expand: 2[(1/2)cos²2A + cos2A·sin2A + (1/2)sin²2A]

Distribute: cos²2A + 2cos2A·sin2A + sin²2A

Pythagorean Identity: 1 + 2cos2A·sin2A

Double Angle: 1 + sin4A

LHS = RHS: 1 + sin4A = 1 + sin4A $\checkmark$

6 0

2 years ago